From: Alexander Potapenko <glider@google.com>
To: kbuild test robot <fengguang.wu@intel.com>
Cc: Andy Lutomirski <luto@kernel.org>,
kasan-dev <kasan-dev@googlegroups.com>,
Neil Horman <nhorman@redhat.com>,
linux-mm@kvack.org, linux-kernel@vger.kernel.org,
LKP <lkp@01.org>, Andrew Morton <akpm@linux-foundation.org>
Subject: Re: [mm, kasan] 80a9201a59: RIP: 0010:[<ffffffff9890f590>] [<ffffffff9890f590>] __kernel_text_address
Date: Fri, 12 Aug 2016 12:35:58 +0200 [thread overview]
Message-ID: <CAG_fn=UnjkZwBbGkgQKx_VmWcbnLrg4O2uNh3aqqa0ryKFNigQ@mail.gmail.com> (raw)
In-Reply-To: <20160812095735.GA3191@wfg-t540p.sh.intel.com>
[-- Attachment #1: Type: text/plain, Size: 59017 bytes --]
Sorry, I am out till Tuesday and won't be able to take a look at this
problem.
sent from phone
On Aug 12, 2016 11:57 AM, "Fengguang Wu" <fengguang.wu@intel.com> wrote:
> On Fri, Aug 12, 2016 at 03:48:08PM +0800, Fengguang Wu wrote:
>
>> On Thu, Aug 11, 2016 at 01:35:03PM -0700, Andrew Morton wrote:
>>
>>> On Thu, 11 Aug 2016 12:52:27 +0800 kernel test robot <
>>> fengguang.wu@intel.com> wrote:
>>>
>>> Greetings,
>>>>
>>>> 0day kernel testing robot got the below dmesg and the first bad commit
>>>> is
>>>>
>>>> https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
>>>> master
>>>>
>>>> commit 80a9201a5965f4715d5c09790862e0df84ce0614
>>>> Author: Alexander Potapenko <glider@google.com>
>>>> AuthorDate: Thu Jul 28 15:49:07 2016 -0700
>>>> Commit: Linus Torvalds <torvalds@linux-foundation.org>
>>>> CommitDate: Thu Jul 28 16:07:41 2016 -0700
>>>>
>>>> mm, kasan: switch SLUB to stackdepot, enable memory quarantine for
>>>> SLUB
>>>>
>>>> For KASAN builds:
>>>> - switch SLUB allocator to using stackdepot instead of storing the
>>>> allocation/deallocation stacks in the objects;
>>>> - change the freelist hook so that parts of the freelist can be put
>>>> into the quarantine.
>>>>
>>>> ...
>>>>
>>>> [ 64.298576] NMI watchdog: BUG: soft lockup - CPU#0 stuck for 22s!
>>>> [swapper/0:1]
>>>> [ 64.300827] irq event stamp: 5606950
>>>> [ 64.301377] hardirqs last enabled at (5606949):
>>>> [<ffffffff98a4ef09>] T.2097+0x9a/0xbe
>>>> [ 64.302586] hardirqs last disabled at (5606950):
>>>> [<ffffffff997347a9>] apic_timer_interrupt+0x89/0xa0
>>>> [ 64.303991] softirqs last enabled at (5605564):
>>>> [<ffffffff99735abe>] __do_softirq+0x23e/0x2bb
>>>> [ 64.305308] softirqs last disabled at (5605557):
>>>> [<ffffffff988ee34f>] irq_exit+0x73/0x108
>>>> [ 64.306598] CPU: 0 PID: 1 Comm: swapper/0 Not tainted
>>>> 4.7.0-05999-g80a9201 #1
>>>> [ 64.307678] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996),
>>>> BIOS Debian-1.8.2-1 04/01/2014
>>>> [ 64.326233] task: ffff88000ea19ec0 task.stack: ffff88000ea20000
>>>> [ 64.327137] RIP: 0010:[<ffffffff9890f590>] [<ffffffff9890f590>]
>>>> __kernel_text_address+0xb/0xa1
>>>> [ 64.328504] RSP: 0000:ffff88000ea27348 EFLAGS: 00000207
>>>> [ 64.329320] RAX: 0000000000000001 RBX: ffff88000ea275c0 RCX:
>>>> 0000000000000001
>>>> [ 64.330426] RDX: ffff88000ea27ff8 RSI: 024080c099733d8f RDI:
>>>> 024080c099733d8f
>>>> [ 64.331496] RBP: ffff88000ea27348 R08: ffff88000ea27678 R09:
>>>> 0000000000000000
>>>> [ 64.332567] R10: 0000000000021298 R11: ffffffff990f235c R12:
>>>> ffff88000ea276c8
>>>> [ 64.333635] R13: ffffffff99805e20 R14: ffff88000ea19ec0 R15:
>>>> 0000000000000000
>>>> [ 64.334706] FS: 0000000000000000(0000) GS:ffff88000ee00000(0000)
>>>> knlGS:0000000000000000
>>>> [ 64.335916] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
>>>> [ 64.336782] CR2: 0000000000000000 CR3: 000000000aa0a000 CR4:
>>>> 00000000000406b0
>>>> [ 64.337846] Stack:
>>>> [ 64.338206] ffff88000ea273a8 ffffffff9881f3dd 024080c099733d8f
>>>> ffffffffffff8000
>>>> [ 64.339410] ffff88000ea27678 ffff88000ea276c8 000000020e81a4d8
>>>> ffff88000ea273f8
>>>> [ 64.340602] ffffffff99805e20 ffff88000ea19ec0 ffff88000ea27438
>>>> ffff88000ee07fc0
>>>> [ 64.348993] Call Trace:
>>>> [ 64.349380] [<ffffffff9881f3dd>] print_context_stack+0x68/0x13e
>>>> [ 64.350295] [<ffffffff9881e4af>] dump_trace+0x3ab/0x3d6
>>>> [ 64.351102] [<ffffffff9882f6e4>] save_stack_trace+0x31/0x5c
>>>> [ 64.351964] [<ffffffff98a521db>] kasan_kmalloc+0x126/0x1f6
>>>> [ 64.365727] [<ffffffff9882f6e4>] ? save_stack_trace+0x31/0x5c
>>>> [ 64.366675] [<ffffffff98a521db>] ? kasan_kmalloc+0x126/0x1f6
>>>> [ 64.367560] [<ffffffff9904a8eb>] ? acpi_ut_create_generic_state+0
>>>> x43/0x5c
>>>>
>>>>
>>> At a guess I'd say that
>>> arch/x86/kernel/dumpstack.c:print_context_stack() failed to terminate,
>>> or took a super long time. Is that a thing that is known to be possible?
>>>
>>
>> Andrew, note that this kernel is compiled with gcc-4.4.
>>
>> This commit caused the below problems, too, with gcc-4.4. However they
>> no longer show up in mainline HEAD, so not reported before.
>>
>
> The gcc-6 results are roughly the same:
>
>
> parent first-bad mainline
> +-----------------------------------------------------------
> -----------------------+------------+------------+------------+
> |
> | c146a2b98e | 80a9201a59 | 4b9eaf33d8 |
> +-----------------------------------------------------------
> -----------------------+------------+------------+------------+
> | boot_successes
> | 110 | 30 | 102 |
> | boot_failures
> | 2 | 80 | 10 |
> | IP-Config:Auto-configuration_of_network_failed
> | 2 | 1 | |
> | Mem-Info
> | 0 | 4 | 7 |
> | BUG_anon_vma_chain(Not_tainted):Poison_overwritten
> | 0 | 17 | |
> | INFO:#-#.First_byte#instead_of
> | 0 | 53 | |
> | INFO:Allocated_in_anon_vma_clone_age=#cpu=#pid=
> | 0 | 15 | |
> | INFO:Freed_in_qlist_free_all_age=#cpu=#pid=
> | 0 | 52 | |
> | INFO:Slab#objects=#used=#fp=0x(null)flags=
> | 0 | 51 | |
> | INFO:Object#@offset=#fp=
> | 0 | 45 | |
> | backtrace:SyS_clone
> | 0 | 50 | |
> | BUG_kmalloc-#(Not_tainted):Poison_overwritten
> | 0 | 11 | |
> | INFO:Allocated_in_kernfs_fop_open_age=#cpu=#pid=
> | 0 | 3 | |
> | backtrace:SyS_open
> | 0 | 9 | |
> | invoked_oom-killer:gfp_mask=0x
> | 0 | 1 | 3 |
> | Out_of_memory:Kill_process
> | 0 | 1 | 3 |
> | backtrace:SyS_mlockall
> | 0 | 2 | 5 |
> | INFO:Allocated_in_anon_vma_prepare_age=#cpu=#pid=
> | 0 | 7 | |
> | backtrace:do_execve
> | 0 | 29 | |
> | backtrace:SyS_execve
> | 0 | 30 | |
> | BUG_vm_area_struct(Not_tainted):Poison_overwritten
> | 0 | 11 | |
> | INFO:Allocated_in_copy_process_age=#cpu=#pid=
> | 0 | 10 | |
> | backtrace:mmap_region
> | 0 | 6 | |
> | backtrace:SyS_mmap_pgoff
> | 0 | 5 | |
> | backtrace:SyS_mmap
> | 0 | 5 | |
> | INFO:Allocated_in_mmap_region_age=#cpu=#pid=
> | 0 | 5 | |
> | backtrace:mprotect_fixup
> | 0 | 7 | |
> | backtrace:SyS_mprotect
> | 0 | 7 | |
> | BUG_skbuff_head_cache(Not_tainted):Poison_overwritten
> | 0 | 2 | |
> | INFO:Allocated_in__alloc_skb_age=#cpu=#pid=
> | 0 | 5 | |
> | backtrace:vfs_write
> | 0 | 5 | |
> | backtrace:SyS_write
> | 0 | 5 | |
> | BUG_names_cache(Not_tainted):Poison_overwritten
> | 0 | 6 | |
> | INFO:Allocated_in_getname_flags_age=#cpu=#pid=
> | 0 | 8 | |
> | INFO:Allocated_in_do_execveat_common_age=#cpu=#pid=
> | 0 | 4 | |
> | BUG_files_cache(Tainted:G_B):Poison_overwritten
> | 0 | 1 | |
> | Oops
> | 0 | 10 | |
> | Kernel_panic-not_syncing:Fatal_exception
> | 0 | 28 | 1 |
> | BUG:unable_to_handle_kernel
> | 0 | 10 | |
> | RIP:vt_console_print
> | 0 | 10 | |
> | BUG:KASAN:use-after-free_in_vma_interval_tree_compute_subtree_last_at_addr
> | 0 | 5 | |
> | BUG:KASAN:use-after-free_in_vma_compute_subtree_gap_at_addr
> | 0 | 2 | |
> | backtrace:load_script
> | 0 | 11 | |
> | backtrace:_do_fork
> | 0 | 25 | |
> | BUG:KASAN:use-after-free_in_put_pid_at_addr
> | 0 | 1 | |
> | BUG:KASAN:use-after-free_in_handle_mm_fault_at_addr
> | 0 | 2 | |
> | BUG:KASAN:use-after-free_in_native_set_pte_at_at_addr
> | 0 | 1 | |
> | BUG:KASAN:use-after-free_in_unmap_page_range_at_addr
> | 0 | 3 | |
> | BUG:Bad_page_map_in_process
> | 0 | 2 | |
> | backtrace:smpboot_thread_fn
> | 0 | 1 | |
> | backtrace:ret_from_fork
> | 0 | 2 | 1 |
> | backtrace:do_group_exit
> | 0 | 13 | |
> | backtrace:SyS_exit_group
> | 0 | 13 | |
> | INFO:Object#@offset=#fp=0x(null)
> | 0 | 16 | |
> | general_protection_fault:#[##]PREEMPT_KASAN
> | 0 | 18 | 1 |
> | RIP:remove_full
> | 0 | 3 | |
> | backtrace:SyS_newstat
> | 0 | 3 | |
> | BUG_anon_vma_chain(Tainted:G_B):Poison_overwritten
> | 0 | 16 | |
> | backtrace:getname
> | 0 | 1 | |
> | backtrace:kernfs_fop_read
> | 0 | 5 | |
> | backtrace:vfs_read
> | 0 | 5 | |
> | backtrace:SyS_read
> | 0 | 5 | |
> | BUG:KASAN:use-after-free_in__rb_insert_augmented_at_addr
> | 0 | 8 | |
> | BUG:KASAN:use-after-free_in_find_vma_at_addr
> | 0 | 4 | |
> | BUG:KASAN:use-after-free_in_vmacache_update_at_addr
> | 0 | 2 | |
> | BUG:KASAN:use-after-free_in_vma_interval_tree_remove_at_addr
> | 0 | 3 | |
> | BUG:KASAN:use-after-free_in__do_page_fault_at_addr
> | 0 | 2 | |
> | BUG:KASAN:use-after-free_in_arch_vma_access_permitted_at_addr
> | 0 | 1 | |
> | BUG:KASAN:use-after-free_in__rb_erase_color_at_addr
> | 0 | 6 | |
> | BUG:KASAN:use-after-free_in_wp_page_copy_at_addr
> | 0 | 1 | |
> | BUG_vm_area_struct(Tainted:G_B):Poison_overwritten
> | 0 | 7 | |
> | BUG:KASAN:use-after-free_in_get_page_from_freelist_at_addr
> | 0 | 1 | |
> | BUG_dentry(Tainted:G_B):Poison_overwritten
> | 0 | 1 | |
> | INFO:Allocated_in__d_alloc_age=#cpu=#pid=
> | 0 | 1 | |
> | BUG:KASAN:use-after-free_in_unlink_anon_vmas_at_addr
> | 0 | 15 | |
> | RIP:unlink_anon_vmas
> | 0 | 12 | |
> | backtrace:SyS_readlink
> | 0 | 3 | |
> | INFO:Allocated_in_kzalloc_age=#cpu=#pid=
> | 0 | 6 | |
> | BUG_kmalloc-#(Tainted:G_B):Poison_overwritten
> | 0 | 10 | |
> | INFO:Allocated_in_load_elf_phdrs_age=#cpu=#pid=
> | 0 | 3 | |
> | INFO:Allocated_in_do_brk_age=#cpu=#pid=
> | 0 | 1 | |
> | INFO:Allocated_in_anon_vma_fork_age=#cpu=#pid=
> | 0 | 9 | |
> | BUG:KASAN:use-after-free_in__anon_vma_interval_tree_compute_subtree_last_at_addr
> | 0 | 6 | |
> | BUG:KASAN:use-after-free_in__anon_vma_interval_tree_augment_rotate_at_addr
> | 0 | 4 | |
> | BUG:KASAN:use-after-free_in__rb_rotate_set_parents_at_addr
> | 0 | 7 | |
> | BUG:KASAN:use-after-free_in_anon_vma_interval_tree_remove_at_addr
> | 0 | 2 | |
> | BUG:KASAN:use-after-free_in__anon_vma_interval_tree_augment_propagate_at_addr
> | 0 | 2 | |
> | BUG:KASAN:use-after-free_in_anon_vma_interval_tree_insert_at_addr
> | 0 | 4 | |
> | INFO:Slab#objects=#used=#fp=#flags=
> | 0 | 3 | |
> | BUG_names_cache(Tainted:G_B):Poison_overwritten
> | 0 | 4 | |
> | backtrace:SyS_mount
> | 0 | 1 | |
> | backtrace:SyS_symlink
> | 0 | 3 | |
> | BUG_skbuff_head_cache(Tainted:G_B):Poison_overwritten
> | 0 | 2 | |
> | backtrace:SyS_sendto
> | 0 | 1 | |
> | BUG:KASAN:use-after-free_in_vma_interval_tree_augment_rotate_at_addr
> | 0 | 2 | |
> | BUG:KASAN:use-after-free_in_vma_last_pgoff_at_addr
> | 0 | 2 | |
> | BUG:KASAN:use-after-free_in_vma_interval_tree_augment_propagate_at_addr
> | 0 | 2 | |
> | BUG:KASAN:use-after-free_in_vma_interval_tree_insert_at_addr
> | 0 | 2 | |
> | BUG:KASAN:use-after-free_in_unmap_vmas_at_addr
> | 0 | 1 | |
> | BUG:KASAN:use-after-free_in_print_bad_pte_at_addr
> | 0 | 1 | |
> | backtrace:vm_mmap_pgoff
> | 0 | 1 | |
> | BUG:KASAN:use-after-free_in_copy_process_at_addr
> | 0 | 1 | |
> | BUG:KASAN:use-after-free_in_anon_vma_fork_at_addr
> | 0 | 1 | |
> | BUG:KASAN:use-after-free_in_copy_page_range_at_addr
> | 0 | 1 | |
> | backtrace:___slab_alloc
> | 0 | 3 | |
> | RIP:__wake_up_common
> | 0 | 1 | 1 |
> | backtrace:fd_timer_workfn
> | 0 | 1 | 1 |
> | INFO:Allocated_in__install_special_mapping_age=#cpu=#pid=
> | 0 | 1 | |
> | BUG:KASAN:use-after-free_in_locks_remove_posix_at_addr
> | 0 | 1 | |
> | BUG:KASAN:use-after-free_in___sys_sendmsg_at_addr
> | 0 | 1 | |
> | BUG:KASAN:use-after-free_in_sock_sendmsg_nosec_at_addr
> | 0 | 1 | |
> | BUG:KASAN:use-after-free_in_netlink_sendmsg_at_addr
> | 0 | 1 | |
> | BUG:KASAN:use-after-free_in__sys_sendmsg_at_addr
> | 0 | 1 | |
> | BUG:KASAN:use-after-free_in_sock_poll_at_addr
> | 0 | 1 | |
> | BUG:KASAN:use-after-free_in_datagram_poll_at_addr
> | 0 | 1 | |
> | backtrace:SyS_pipe
> | 0 | 1 | |
> | backtrace:__close_fd
> | 0 | 1 | |
> | backtrace:SyS_close
> | 0 | 1 | |
> | backtrace:SYSC_socket
> | 0 | 1 | |
> | backtrace:SyS_socket
> | 0 | 2 | |
> | backtrace:SyS_sendmsg
> | 0 | 3 | |
> | backtrace:__sys_sendmsg
> | 0 | 1 | |
> | backtrace:SyS_ppoll
> | 0 | 1 | |
> | BUG_files_cache(Not_tainted):Poison_overwritten
> | 0 | 1 | |
> | INFO:Allocated_in_dup_fd_age=#cpu=#pid=
> | 0 | 1 | |
> | INFO:Allocated_in_uevent_show_age=#cpu=#pid=
> | 0 | 1 | |
> | backtrace:SyS_munmap
> | 0 | 1 | |
> | BUG:KASAN:use-after-free_in_anon_vma_clone_at_addr
> | 0 | 2 | |
> | RIP:anon_vma_clone
> | 0 | 2 | |
> | INFO:Allocated_in_getname_kernel_age=#cpu=#pid=
> | 0 | 2 | |
> | INFO:Allocated_in__split_vma_age=#cpu=#pid=
> | 0 | 2 | |
> | BUG:KASAN:use-after-free_in_rcu_process_callbacks_at_addr
> | 0 | 1 | |
> | BUG:KASAN:use-after-free_in_unlink_file_vma_at_addr
> | 0 | 2 | |
> | BUG:KASAN:use-after-free_in_remove_vma_at_addr
> | 0 | 2 | |
> | backtrace:SYSC_newstat
> | 0 | 1 | |
> | BUG_fs_cache(Tainted:G_B):Poison_overwritten
> | 0 | 1 | |
> | INFO:Allocated_in_copy_fs_struct_age=#cpu=#pid=
> | 0 | 1 | |
> | backtrace:handle_mm_fault
> | 0 | 1 | |
> | BUG:KASAN:use-after-free_in_unmapped_area_topdown_at_addr
> | 0 | 1 | |
> | INFO:Allocated_in__list_lru_init_age=#cpu=#pid=
> | 0 | 1 | |
> | BUG:KASAN:use-after-free_in__vma_link_rb_at_addr
> | 0 | 1 | |
> | BUG:KASAN:use-after-free_in_vma_gap_callbacks_propagate_at_addr
> | 0 | 1 | |
> | backtrace:SyS_mknod
> | 0 | 1 | |
> | INFO:Allocated_in_kobject_uevent_env_age=#cpu=#pid=
> | 0 | 1 | |
> | BUG:KASAN:use-after-free_in_free_pgtables_at_addr
> | 0 | 1 | |
> | BUG:KASAN:use-after-free_in_exit_mmap_at_addr
> | 0 | 1 | |
> | BUG:kernel_test_oversize
> | 0 | 0 | 2 |
> +-----------------------------------------------------------
> -----------------------+------------+------------+------------+
>
>
> Here are the detailed Oops listing on this commit, with the trinity OOMs
> removed.
>
> dmesg-quantal-ivb41-10:20160812160230:x86_64-randconfig-s0-
> 08040601:4.7.0-05999-g80a9201:1
>
> [ 101.754306] init: Failed to create pty - disabling logging for job
> [ 101.860052] init: Temporary process spawn error: No such file or
> directory
> [ 101.939827] ==============================
> ===============================================
> [ 101.943713] BUG anon_vma_chain (Not tainted): Poison overwritten
> [ 101.946151] ------------------------------
> -----------------------------------------------
> [ 101.946151] [ 101.956210] Disabling lock debugging due to kernel taint
> [ 101.961535] INFO: 0xffff88000922e9d5-0xffff88000922e9d7. First byte
> 0x1 instead of 0x6b
> [ 101.968051] INFO: Allocated in anon_vma_clone+0x9f/0x375 age=536 cpu=0
> pid=253
> [ 102.012093] INFO: Freed in qlist_free_all+0x33/0xac age=59 cpu=0 pid=255
> [ 102.073932] INFO: Slab 0xffffea0000248b80 objects=19 used=19 fp=0x
> (null) flags=0x4000000000004080
> [ 102.084787] INFO: Object 0xffff88000922e9c8 @offset=2504
> fp=0xffff88000922f388
> [ 102.084787] [ 102.095451] Redzone ffff88000922e9c0: bb bb bb bb bb bb
> bb bb ........
> [ 102.103305] Object ffff88000922e9c8: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b
> 6b 6b 01 40 82 kkkkkkkkkkkkk.@.
> [ 102.111187] Object ffff88000922e9d8: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b
> 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
> [ 102.119169] Object ffff88000922e9e8: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b
> 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
> [ 102.127071] Object ffff88000922e9f8: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b
> 6b 6b 6b 6b a5 kkkkkkkkkkkkkkk.
> [ 102.138649] Redzone ffff88000922ea08: bb bb bb bb bb bb bb bb
> ........
> [ 102.142155] Padding ffff88000922eb54: 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a
> 5a ZZZZZZZZZZZZ
> [ 102.145703] CPU: 0 PID: 255 Comm: udevd Tainted: G B
> 4.7.0-05999-g80a9201 #1
> [ 102.149473] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS
> Debian-1.8.2-1 04/01/2014
> [ 102.154920] 0000000000000000 ffff88000a2a79d8 ffffffff81c91ab5
> ffff88000a2a7a08
> [ 102.158925] ffffffff81330f07 ffff88000922e9d5 000000000000006b
> ffff8800110131c0
> [ 102.162965] ffff88000922e9d7 ffff88000a2a7a58 ffffffff81330fac
> ffffffff83592f26
> [ 102.166534] Call Trace:
> [ 102.167926] [<ffffffff81c91ab5>] dump_stack+0x19/0x1b
> [ 102.169917] [<ffffffff81330f07>] print_trailer+0x15b/0x164
> [ 102.172282] [<ffffffff81330fac>] check_bytes_and_report+0x9c/0xef
> [ 102.174549] [<ffffffff8133194d>] check_object+0x12f/0x1fb
> [ 102.176815] [<ffffffff81315ac6>] ? anon_vma_clone+0x9f/0x375
> [ 102.180023] [<ffffffff81331f00>] alloc_debug_processing+0x7e/0x10d
> [ 102.182520] [<ffffffff8133211b>] ___slab_alloc+0x18c/0x31e
> [ 102.184919] [<ffffffff81315ac6>] ? anon_vma_clone+0x9f/0x375
> [ 102.187331] [<ffffffff81334818>] ? kasan_unpoison_shadow+0x14/0x35
> [ 102.189613] [<ffffffff811f1079>] ? ___might_sleep+0xa4/0x321
> [ 102.191936] [<ffffffff81315ac6>] ? anon_vma_clone+0x9f/0x375
> [ 102.194468] [<ffffffff813322c3>] __slab_alloc+0x16/0x2a
> [ 102.197302] [<ffffffff813322c3>] ? __slab_alloc+0x16/0x2a
> [ 102.200729] [<ffffffff81332b53>] kmem_cache_alloc+0x50/0xb6
> [ 102.203125] [<ffffffff81315ac6>] anon_vma_clone+0x9f/0x375
> [ 102.205249] [<ffffffff81315e34>] anon_vma_fork+0x98/0x3f9
> [ 102.207331] [<ffffffff811a9c9a>] copy_process+0x246d/0x424c
> [ 102.209633] [<ffffffff811a782d>] ? __cleanup_sighand+0x23/0x23
> [ 102.212180] [<ffffffff81380da8>] ? put_unused_fd+0x6f/0x6f
> [ 102.214374] [<ffffffff811f1079>] ? ___might_sleep+0xa4/0x321
> [ 102.216708] [<ffffffff811abe13>] _do_fork+0x159/0x3d9
> [ 102.219151] [<ffffffff811abcba>] ? fork_idle+0x1ed/0x1ed
> [ 102.221418] [<ffffffff813596a7>] ? __do_pipe_flags+0x1aa/0x1aa
> [ 102.223830] [<ffffffff8111d106>] ? __do_page_fault+0x519/0x624
> [ 102.225997] [<ffffffff82c80800>] ? ptregs_sys_rt_sigreturn+0x10/0x10
> [ 102.228515] [<ffffffff811ac105>] SyS_clone+0x14/0x16
> [ 102.230565] [<ffffffff81002ab8>] do_syscall_64+0x1be/0x1fa
> [ 102.232791] [<ffffffff8111d254>] ? do_page_fault+0x22/0x27
> [ 102.235308] [<ffffffff82c80722>] entry_SYSCALL64_slow_path+0x25/0x25
> [ 102.237796] FIX anon_vma_chain: Restoring 0xffff88000922e9d5-0xffff88000
> 922e9d7=0x6b
>
> dmesg-quantal-ivb41-129:20160812160254:x86_64-randconfig-s0-
> 08040601:4.7.0-05999-g80a9201:1
>
> [ 111.625693] power_supply test_usb: POWER_SUPPLY_NAME=test_usb
> [ 111.625717] power_supply test_usb: prop ONLINE=1
> [ 113.494934] ==============================
> ===============================================
> [ 113.494939] BUG kmalloc-64 (Not tainted): Poison overwritten
> [ 113.494940] ------------------------------
> -----------------------------------------------
> [ 113.494940] [ 113.494941] Disabling lock debugging due to kernel taint
> [ 113.494944] INFO: 0xffff88000a70b535-0xffff88000a70b537. First byte
> 0x1 instead of 0x6b
> [ 113.494953] INFO: Allocated in kernfs_fop_open+0x6fb/0x840 age=153
> cpu=0 pid=246
> [ 113.494993] INFO: Freed in qlist_free_all+0x33/0xac age=86 cpu=0 pid=238
> [ 113.495036] INFO: Slab 0xffffea000029c280 objects=19 used=19 fp=0x
> (null) flags=0x4000000000004080
> [ 113.495039] INFO: Object 0xffff88000a70b528 @offset=5416
> fp=0xffff88000a70a828
> [ 113.495039] [ 113.495043] Redzone ffff88000a70b520: bb bb bb bb bb bb
> bb bb ........
> [ 113.495046] Object ffff88000a70b528: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b
> 6b 6b 01 a0 c9 kkkkkkkkkkkkk...
> [ 113.495049] Object ffff88000a70b538: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b
> 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
> [ 113.495052] Object ffff88000a70b548: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b
> 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
> [ 113.495054] Object ffff88000a70b558: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b
> 6b 6b 6b 6b a5 kkkkkkkkkkkkkkk.
> [ 113.495057] Redzone ffff88000a70b568: bb bb bb bb bb bb bb bb
> ........
> [ 113.495060] Padding ffff88000a70b6b4: 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a
> 5a ZZZZZZZZZZZZ
> [ 113.495064] CPU: 0 PID: 238 Comm: udevd Tainted: G B
> 4.7.0-05999-g80a9201 #1
> [ 113.495066] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS
> Debian-1.8.2-1 04/01/2014
> [ 113.495071] 0000000000000000 ffff88000adc77d8 ffffffff81c91ab5
> ffff88000adc7808
> [ 113.495075] ffffffff81330f07 ffff88000a70b535 000000000000006b
> ffff8800110036c0
> [ 113.495079] ffff88000a70b537 ffff88000adc7858 ffffffff81330fac
> ffffffff83592f26
> [ 113.495079] Call Trace:
> [ 113.495084] [<ffffffff81c91ab5>] dump_stack+0x19/0x1b
> [ 113.495088] [<ffffffff81330f07>] print_trailer+0x15b/0x164
> [ 113.495091] [<ffffffff81330fac>] check_bytes_and_report+0x9c/0xef
> [ 113.495094] [<ffffffff8133194d>] check_object+0x12f/0x1fb
> [ 113.495098] [<ffffffff81425fc3>] ? kernfs_fop_open+0x6fb/0x840
> [ 113.495101] [<ffffffff81331f00>] alloc_debug_processing+0x7e/0x10d
> [ 113.495104] [<ffffffff8133211b>] ___slab_alloc+0x18c/0x31e
> [ 113.495108] [<ffffffff81334595>] ? kasan_poison_shadow+0x2f/0x31
> [ 113.495111] [<ffffffff81425fc3>] ? kernfs_fop_open+0x6fb/0x840
> [ 113.495116] [<ffffffff811f1079>] ? ___might_sleep+0xa4/0x321
> [ 113.495119] [<ffffffff81425fc3>] ? kernfs_fop_open+0x6fb/0x840
> [ 113.495123] [<ffffffff813322c3>] __slab_alloc+0x16/0x2a
> [ 113.495126] [<ffffffff813322c3>] ? __slab_alloc+0x16/0x2a
> [ 113.495129] [<ffffffff81332b53>] kmem_cache_alloc+0x50/0xb6
> [ 113.495133] [<ffffffff81425fc3>] kernfs_fop_open+0x6fb/0x840
> [ 113.495136] [<ffffffff81342aed>] do_dentry_open+0x361/0x6fe
> [ 113.495140] [<ffffffff814258c8>] ? kernfs_fop_read+0x3ab/0x3ab
> [ 113.495143] [<ffffffff813442fd>] vfs_open+0x179/0x186
> [ 113.495156] [<ffffffff81363618>] path_openat+0x198c/0x1c58
> [ 113.495161] [<ffffffff81d05cc7>] ? depot_save_stack+0x13c/0x390
> [ 113.495164] [<ffffffff813347b1>] ? save_stack+0xc4/0xce
> [ 113.495167] [<ffffffff81361c8c>] ? filename_mountpoint+0x17e/0x17e
>
> dmesg-quantal-ivb41-16:20160812160241:x86_64-randconfig-s0-
> 08040601:4.7.0-05999-g80a9201:1
>
> [ 105.110247] init: Failed to create pty - disabling logging for job
> [ 105.110381] init: Temporary process spawn error: No such file or
> directory
> [ 106.640168] ==============================
> ===============================================
> [ 106.640172] BUG anon_vma_chain (Not tainted): Poison overwritten
> [ 106.640174] ------------------------------
> -----------------------------------------------
> [ 106.640174] [ 106.640174] Disabling lock debugging due to kernel taint
> [ 106.640178] INFO: 0xffff880008d8eb75-0xffff880008d8eb77. First byte
> 0x1 instead of 0x6b
> [ 106.640187] INFO: Allocated in anon_vma_prepare+0x6b/0x2db age=138
> cpu=0 pid=415
> [ 106.640223] INFO: Freed in qlist_free_all+0x33/0xac age=26 cpu=0 pid=239
> [ 106.640269] INFO: Slab 0xffffea0000236380 objects=19 used=19 fp=0x
> (null) flags=0x4000000000004080
> [ 106.640271] INFO: Object 0xffff880008d8eb68 @offset=2920
> fp=0xffff880008d8f528
> [ 106.640271] [ 106.640275] Redzone ffff880008d8eb60: bb bb bb bb bb bb
> bb bb ........
> [ 106.640278] Object ffff880008d8eb68: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b
> 6b 6b 01 c0 90 kkkkkkkkkkkkk...
> [ 106.640281] Object ffff880008d8eb78: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b
> 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
> [ 106.640284] Object ffff880008d8eb88: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b
> 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
> [ 106.640287] Object ffff880008d8eb98: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b
> 6b 6b 6b 6b a5 kkkkkkkkkkkkkkk.
> [ 106.640289] Redzone ffff880008d8eba8: bb bb bb bb bb bb bb bb
> ........
> [ 106.640292] Padding ffff880008d8ecf4: 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a
> 5a ZZZZZZZZZZZZ
> [ 106.640296] CPU: 0 PID: 398 Comm: ifup Tainted: G B
> 4.7.0-05999-g80a9201 #1
> [ 106.640298] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS
> Debian-1.8.2-1 04/01/2014
> [ 106.640304] 0000000000000000 ffff8800088bf6d8 ffffffff81c91ab5
> ffff8800088bf708
> [ 106.640308] ffffffff81330f07 ffff880008d8eb75 000000000000006b
> ffff8800110131c0
> [ 106.640311] ffff880008d8eb77 ffff8800088bf758 ffffffff81330fac
> ffffffff83592f26
> [ 106.640312] Call Trace:
> [ 106.640317] [<ffffffff81c91ab5>] dump_stack+0x19/0x1b
> [ 106.640321] [<ffffffff81330f07>] print_trailer+0x15b/0x164
> [ 106.640324] [<ffffffff81330fac>] check_bytes_and_report+0x9c/0xef
> [ 106.640327] [<ffffffff8133194d>] check_object+0x12f/0x1fb
> [ 106.640330] [<ffffffff813153ea>] ? anon_vma_prepare+0x6b/0x2db
> [ 106.640334] [<ffffffff81331f00>] alloc_debug_processing+0x7e/0x10d
> [ 106.640338] [<ffffffff8133211b>] ___slab_alloc+0x18c/0x31e
> [ 106.640340] [<ffffffff813153ea>] ? anon_vma_prepare+0x6b/0x2db
> [ 106.640343] [<ffffffff813153ea>] ? anon_vma_prepare+0x6b/0x2db
> [ 106.640347] [<ffffffff813322c3>] __slab_alloc+0x16/0x2a
> [ 106.640350] [<ffffffff813322c3>] ? __slab_alloc+0x16/0x2a
> [ 106.640353] [<ffffffff81332b53>] kmem_cache_alloc+0x50/0xb6
> [ 106.640356] [<ffffffff813153ea>] anon_vma_prepare+0x6b/0x2db
> [ 106.640360] [<ffffffff81304113>] handle_mm_fault+0xcf6/0x11bb
> [ 106.640363] [<ffffffff8130341d>] ? apply_to_page_range+0x2fb/0x2fb
> [ 106.640367] [<ffffffff8130e21e>] ? SyS_munmap+0x81/0x81
> [ 106.640372] [<ffffffff810e82be>] ? arch_get_unmapped_area+0x39c/0x39c
>
> dmesg-quantal-ivb41-26:20160812160257:x86_64-randconfig-s0-
> 08040601:4.7.0-05999-g80a9201:1
>
> [ 111.995978] init: Failed to create pty - disabling logging for job
> [ 111.996117] init: Temporary process spawn error: No such file or
> directory
> [ 114.698502] ==============================
> ===============================================
> [ 114.698515] BUG vm_area_struct (Not tainted): Poison overwritten
> [ 114.698516] ------------------------------
> -----------------------------------------------
> [ 114.698516] [ 114.698517] Disabling lock debugging due to kernel taint
> [ 114.698521] INFO: 0xffff880008488a8c-0xffff880008488a8f. First byte
> 0x6a instead of 0x6b
> [ 114.698579] INFO: Allocated in copy_process+0x2323/0x424c age=107 cpu=0
> pid=419
> [ 114.698676] INFO: Freed in qlist_free_all+0x33/0xac age=11 cpu=0 pid=263
> [ 114.698730] INFO: Slab 0xffffea0000212200 objects=15 used=15 fp=0x
> (null) flags=0x4000000000004080
> [ 114.698733] INFO: Object 0xffff880008488a80 @offset=2688
> fp=0xffff880008488220
> [ 114.698733] [ 114.698742] Redzone ffff880008488a78: bb bb bb bb bb bb
> bb bb ........
> [ 114.698747] Object ffff880008488a80: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b
> 6b 6a 01 80 e4 kkkkkkkkkkkkj...
> [ 114.698749] Object ffff880008488a90: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b
> 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
> [ 114.698752] Object ffff880008488aa0: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b
> 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
>
> dmesg-quantal-ivb41-42:20160812160302:x86_64-randconfig-s0-
> 08040601:4.7.0-05999-g80a9201:1
>
> [ 106.294052] init: Failed to create pty - disabling logging for job
> [ 106.294199] init: Temporary process spawn error: No such file or
> directory
> [ 107.451301] ==============================
> ===============================================
> [ 107.451306] BUG vm_area_struct (Not tainted): Poison overwritten
> [ 107.451307] ------------------------------
> -----------------------------------------------
> [ 107.451307] [ 107.451308] Disabling lock debugging due to kernel taint
> [ 107.451312] INFO: 0xffff88000914665c-0xffff88000914665f. First byte
> 0x6a instead of 0x6b
> [ 107.451321] INFO: Allocated in copy_process+0x2323/0x424c age=140 cpu=0
> pid=1
> [ 107.451353] INFO: Freed in qlist_free_all+0x33/0xac age=67 cpu=0 pid=261
> [ 107.451397] INFO: Slab 0xffffea0000245180 objects=15 used=15 fp=0x
> (null) flags=0x4000000000004080
> [ 107.451399] INFO: Object 0xffff880009146650 @offset=1616
> fp=0xffff880009147d58
> [ 107.451399] [ 107.451403] Redzone ffff880009146648: bb bb bb bb bb bb
> bb bb ........
> [ 107.451406] Object ffff880009146650: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b
> 6b 6a 01 e0 e5 kkkkkkkkkkkkj...
> [ 107.451409] Object ffff880009146660: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b
> 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
> [ 107.451411] Object ffff880009146670: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b
> 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
>
> dmesg-quantal-ivb41-52:20160812160241:x86_64-randconfig-s0-
> 08040601:4.7.0-05999-g80a9201:1
>
> [ 106.678891] irda_setsockopt: not allowed to set MAXSDUSIZE for this
> socket type!
> [ 106.749546] power_supply test_ac: prop ONLINE=1
> [ 107.430823] ==============================
> ===============================================
> [ 107.434407] BUG vm_area_struct (Not tainted): Poison overwritten
> [ 107.436760] ------------------------------
> -----------------------------------------------
> [ 107.436760] [ 107.449972] Disabling lock debugging due to kernel taint
> [ 107.452404] INFO: 0xffff880009bd2874-0xffff880009bd2877. First byte
> 0x6a instead of 0x6b
> [ 107.456114] INFO: Allocated in mmap_region+0x33a/0xa41 age=359 cpu=0
> pid=440
> [ 107.500267] INFO: Freed in qlist_free_all+0x33/0xac age=58 cpu=0 pid=264
> [ 107.547459] INFO: Slab 0xffffea000026f480 objects=15 used=15 fp=0x
> (null) flags=0x4000000000004080
> [ 107.551406] INFO: Object 0xffff880009bd2868 @offset=2152
> fp=0xffff880009bd3928
> [ 107.551406] [ 107.562146] Redzone ffff880009bd2860: bb bb bb bb bb bb
> bb bb ........
> [ 107.565909] Object ffff880009bd2868: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b
> 6b 6a 01 80 fc kkkkkkkkkkkkj...
> [ 107.573610] Object ffff880009bd2878: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b
> 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
> [ 107.576946] Object ffff880009bd2888: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b
> 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
>
> dmesg-quantal-ivb41-71:20160812160239:x86_64-randconfig-s0-
> 08040601:4.7.0-05999-g80a9201:1
>
> [ 103.201437] power_supply test_usb: POWER_SUPPLY_NAME=test_usb
> [ 103.201462] power_supply test_usb: prop ONLINE=1
> [ 104.201388] ==============================
> ===============================================
> [ 104.201393] BUG skbuff_head_cache (Not tainted): Poison overwritten
> [ 104.201394] ------------------------------
> -----------------------------------------------
> [ 104.201394] [ 104.201395] Disabling lock debugging due to kernel taint
> [ 104.201397] INFO: 0xffff88000a459b8c-0xffff88000a459b8f. First byte
> 0x6d instead of 0x6b
> [ 104.201406] INFO: Allocated in __alloc_skb+0xad/0x498 age=169 cpu=0
> pid=1
> [ 104.201451] INFO: Freed in qlist_free_all+0x33/0xac age=13 cpu=0 pid=254
> [ 104.201493] INFO: Slab 0xffffea0000291600 objects=10 used=10 fp=0x
> (null) flags=0x4000000000004080
> [ 104.201495] INFO: Object 0xffff88000a459b80 @offset=7040
> fp=0xffff88000a458980
> [ 104.201495] [ 104.201500] Redzone ffff88000a459b00: bb bb bb bb bb bb
> bb bb bb bb bb bb bb bb bb bb ................
> [ 104.201503] Redzone ffff88000a459b10: bb bb bb bb bb bb bb bb bb bb bb
> bb bb bb bb bb ................
> [ 104.201506] Redzone ffff88000a459b20: bb bb bb bb bb bb bb bb bb bb bb
> bb bb bb bb bb ................
> [ 104.201508] Redzone ffff88000a459b30: bb bb bb bb bb bb bb bb bb bb bb
> bb bb bb bb bb ................
> [ 104.201511] Redzone ffff88000a459b40: bb bb bb bb bb bb bb bb bb bb bb
> bb bb bb bb bb ................
> [ 104.201513] Redzone ffff88000a459b50: bb bb bb bb bb bb bb bb bb bb bb
> bb bb bb bb bb ................
> [ 104.201516] Redzone ffff88000a459b60: bb bb bb bb bb bb bb bb bb bb bb
> bb bb bb bb bb ................
> [ 104.201519] Redzone ffff88000a459b70: bb bb bb bb bb bb bb bb bb bb bb
> bb bb bb bb bb ................
> [ 104.201521] Object ffff88000a459b80: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b
> 6b 6d 01 e0 af kkkkkkkkkkkkm...
> [ 104.201524] Object ffff88000a459b90: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b
> 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
> [ 104.201527] Object ffff88000a459ba0: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b
> 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
>
> dmesg-quantal-ivb41-96:20160812160242:x86_64-randconfig-s0-
> 08040601:4.7.0-05999-g80a9201:1
>
> udevd[310]: failed to execute '/sbin/modprobe' '/sbin/modprobe -bv
> pci:v00001234d00001111sv00001AF4sd00001100bc03sc00i00': No such file or
> directory
> udevd[358]: failed to execute '/sbin/modprobe' '/sbin/modprobe -bv
> dmi:bvnSeaBIOS:bvrDebian-1.8.2-1:bd04/01/2014:svnQEMU:pnStan
> dardPC(i440FX+PIIX,1996):pvrpc-i440fx-2.4:cvnQEMU:ct1:cvrpc-i440fx-2.4:':
> No such file or directory
> [ 110.688412] ==============================
> ===============================================
> [ 110.692354] BUG names_cache (Not tainted): Poison overwritten
> [ 110.694901] ------------------------------
> -----------------------------------------------
> [ 110.694901] [ 110.699914] Disabling lock debugging due to kernel taint
> [ 110.702057] INFO: 0xffff880009a4b58c-0xffff880009a4b58f. First byte
> 0x69 instead of 0x6b
> [ 110.705346] INFO: Allocated in getname_flags+0x5a/0x35c age=85 cpu=0
> pid=253
> [ 110.727505] INFO: Freed in qlist_free_all+0x33/0xac age=8 cpu=0 pid=1
> [ 110.766664] INFO: Slab 0xffffea0000269200 objects=7 used=7 fp=0x
> (null) flags=0x4000000000004080
> [ 110.770745] INFO: Object 0xffff880009a4b580 @offset=13696
> fp=0xffff880009a4c740
> [ 110.770745] [ 110.777537] Redzone ffff880009a4b540: bb bb bb bb bb bb
> bb bb bb bb bb bb bb bb bb bb ................
> [ 110.789632] Redzone ffff880009a4b550: bb bb bb bb bb bb bb bb bb bb bb
> bb bb bb bb bb ................
> [ 110.805843] Redzone ffff880009a4b560: bb bb bb bb bb bb bb bb bb bb bb
> bb bb bb bb bb ................
> [ 110.809851] Redzone ffff880009a4b570: bb bb bb bb bb bb bb bb bb bb bb
> bb bb bb bb bb ................
> [ 110.813955] Object ffff880009a4b580: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b
> 6b 69 01 00 a7 kkkkkkkkkkkki...
> [ 110.818081] Object ffff880009a4b590: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b
> 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
> [ 110.825439] Object ffff880009a4b5a0: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b
> 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
>
> dmesg-vm-ivb41-quantal-x86_64-14:20160812160512:x86_64-randc
> onfig-s0-08040601:4.7.0-05999-g80a9201:1
>
> udevd[350]: failed to execute '/sbin/modprobe' '/sbin/modprobe -bv
> input:b0011v0001p0001eAB41-e0,1,4,11,14,k71,72,73,74,75,76,7
> 7,79,7A,7B,7C,7D,7E,7F,80,8C,8E,8F,9B,9C,9D,9E,9F,A3,A4,A5,A
> 6,AC,AD,B7,B8,B9,D9,E2,ram4,l0,1,2,sfw': No such file or directory
> udevd[349]: failed to execute '/sbin/modprobe' '/sbin/modprobe -bv
> acpi:PNP0F13:': No such file or directory
> [ 72.009404] ==============================
> ===============================================
> [ 72.012878] BUG kmalloc-512 (Not tainted): Poison overwritten
> [ 72.015063] ------------------------------
> -----------------------------------------------
> [ 72.015063] [ 72.019443] Disabling lock debugging due to kernel taint
> [ 72.021499] INFO: 0xffff880017642a35-0xffff880017642a37. First byte
> 0x1 instead of 0x6b
> [ 72.037465] INFO: Allocated in load_elf_phdrs+0x9a/0xf4 age=169 cpu=0
> pid=356
> [ 72.065799] INFO: Freed in qlist_free_all+0x33/0xac age=67 cpu=0 pid=265
> [ 72.121094] INFO: Slab 0xffffea00005d9080 objects=9 used=9 fp=0x
> (null) flags=0x4000000000004080
> [ 72.125452] INFO: Object 0xffff880017642a28 @offset=2600 fp=0x
> (null)
> [ 72.125452] [ 72.130200] Redzone ffff880017642a20: bb bb bb bb bb bb
> bb bb ........
> [ 72.134294] Object ffff880017642a28: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b
> 6b 6b 01 80 b1 kkkkkkkkkkkkk...
> [ 72.138544] Object ffff880017642a38: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b
> 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
> [ 72.142802] Object ffff880017642a48: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b
> 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
>
> dmesg-vm-ivb41-quantal-x86_64-1:20160812160325:x86_64-randco
> nfig-s0-08040601:4.7.0-05999-g80a9201:1
>
> [ 75.545932] ipconfig: ipddp0: socket(AF_INET): Address family not
> supported by protocol
> [ 75.551674] ipconfig: no devices to configure
> [ 75.558551] /usr/share/initramfs-tools/scripts/functions: line 491:
> /run/net-eth0.conf: No such file or directory
> !!! IP-Config: Auto-configuration of network failed !!!
> [ 75.860942] !!! IP-Config: Auto-configuration of network failed !!!
> error: 'rc.local' exited outside the expected code flow.
> [ 75.931858] init: Failed to create pty - disabling logging for job
> [ 75.933512] init: Temporary process spawn error: No such file or
> directory
>
> dmesg-yocto-ivb41-105:20160812160231:x86_64-randconfig-s0-
> 08040601:4.7.0-05999-g80a9201:1
>
> [ 106.928062] blk_update_request: I/O error, dev fd0, sector 0
> [ 106.929740] floppy: error -5 while reading block 0
> [ 107.012218] ==============================
> ===============================================
> [ 107.019136] BUG kmalloc-256 (Not tainted): Poison overwritten
> [ 107.020787] ------------------------------
> -----------------------------------------------
> [ 107.020787] [ 107.024336] Disabling lock debugging due to kernel taint
> [ 107.025926] INFO: 0xffff880008ca2e54-0xffff880008ca2e57. First byte
> 0x6c instead of 0x6b
> [ 107.028595] INFO: Allocated in do_execveat_common+0x268/0x11d2 age=281
> cpu=0 pid=352
> [ 107.076371] INFO: Freed in qlist_free_all+0x33/0xac age=227 cpu=0
> pid=291
> [ 107.149193] INFO: Slab 0xffffea0000232880 objects=13 used=13 fp=0x
> (null) flags=0x4000000000004080
> [ 107.167264] INFO: Object 0xffff880008ca2e48 @offset=3656
> fp=0xffff880008ca3c88
> [ 107.167264] [ 107.170622] Redzone ffff880008ca2e40: bb bb bb bb bb bb
> bb bb ........
> [ 107.173376] Object ffff880008ca2e48: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b
> 6b 6c 01 00 ae kkkkkkkkkkkkl...
> [ 107.195350] Object ffff880008ca2e58: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b
> 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
> [ 107.198226] Object ffff880008ca2e68: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b
> 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
>
> dmesg-yocto-ivb41-108:20160812160251:x86_64-randconfig-s0-
> 08040601:4.7.0-05999-g80a9201:1
>
> /etc/rcS.d/S00fbsetup: line 3: /sbin/modprobe: not found
> Starting udev
> [ 110.935770] ==============================
> ====================================
> [ 110.938593] BUG: KASAN: use-after-free in vma_interval_tree_compute_subtree_last+0x5f/0xcc
> at addr ffff8800087f4f20
> [ 110.941666] Read of size 8 by task udevd/440
> [ 110.956256] CPU: 0 PID: 440 Comm: udevd Not tainted
> 4.7.0-05999-g80a9201 #1
> [ 110.958363] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS
> Debian-1.8.2-1 04/01/2014
> [ 110.961354] 0000000000000000 ffff880008bbf680 ffffffff81c91ab5
> ffff880008bbf6f8
> [ 110.964325] ffffffff8133576b ffffffff812f6c1b 0000000000000246
> 000000010013000b
> [ 110.967282] 0000000000000246 0000000000000000 ffff880008bbf7e0
> ffffffff812ff9dc
> [ 110.970325] Call Trace:
> [ 110.971562] [<ffffffff81c91ab5>] dump_stack+0x19/0x1b
> [ 110.973253] [<ffffffff8133576b>] kasan_report+0x319/0x553
> [ 110.975079] [<ffffffff812f6c1b>] ? vma_interval_tree_compute_subt
> ree_last+0x5f/0xcc
> [ 110.977922] [<ffffffff812ff9dc>] ? unmap_page_range+0x4f5/0x949
> [ 110.979838] [<ffffffff813359fb>] __asan_report_load8_noabort+0x14/0x16
> [ 110.981848] [<ffffffff812f6c1b>] vma_interval_tree_compute_subt
> ree_last+0x5f/0xcc
> [ 110.984734] [<ffffffff812f6cb1>] vma_interval_tree_augment_prop
> agate+0x29/0x75
> [ 110.987552] [<ffffffff812f78b3>] vma_interval_tree_remove+0x5e2/0x608
> [ 110.989359] [<ffffffff81307c85>] __remove_shared_vm_struct+0x7b/0x82
> [ 110.991151] [<ffffffff81309084>] unlink_file_vma+0x82/0x93
> [ 110.992789] [<ffffffff812fe80c>] free_pgtables+0xf0/0x13e
> [ 110.994416] [<ffffffff8130bb3a>] exit_mmap+0x13e/0x2b2
> [ 110.995989] [<ffffffff8130b9fc>] ? split_vma+0x96/0x96
> [ 110.997715] [<ffffffff811f1079>] ? ___might_sleep+0xa4/0x321
> [ 110.999554] [<ffffffff811a71bd>] __mmput+0x58/0x181
> [ 111.001251] [<ffffffff811a730e>] mmput+0x28/0x2b
> [ 111.002907] [<ffffffff81353b6c>] flush_old_exec+0x1102/0x124a
> [ 111.004747] [<ffffffff813e53c0>] load_elf_binary+0x776/0x357c
> [ 111.006622] [<ffffffff813e4c4a>] ? elf_core_dump+0x30d0/0x30d0
> [ 111.008547] [<ffffffff813549eb>] search_binary_handler+0x100/0x1fb
> [ 111.010493] [<ffffffff813e11b4>] load_script+0x4b8/0x506
> [ 111.012285] [<ffffffff813e0cfc>] ? compat_SyS_ioctl+0x184d/0x184d
> [ 111.043190] [<ffffffff811f1079>] ? ___might_sleep+0xa4/0x321
> [ 111.044879] [<ffffffff811f144c>] ? __might_sleep+0x156/0x162
> [ 111.046565] [<ffffffff81351535>] ? copy_strings+0x467/0x52d
> [ 111.061417] [<ffffffff813549eb>] search_binary_handler+0x100/0x1fb
> [ 111.063414] [<ffffffff81355912>] do_execveat_common+0xe2c/0x11d2
> [ 111.065464] [<ffffffff81354ae6>] ? search_binary_handler+0x1fb/0x1fb
> [ 111.067347] [<ffffffff81332bab>] ? kmem_cache_alloc+0xa8/0xb6
> [ 111.069035] [<ffffffff8135c29a>] ? getname_flags+0x337/0x35c
> [ 111.070721] [<ffffffff82c80830>] ? ptregs_sys_vfork+0x10/0x10
> [ 111.072417] [<ffffffff81355cd6>] do_execve+0x1e/0x20
> [ 111.073977] [<ffffffff813564b5>] SyS_execve+0x25/0x29
> [ 111.088763] [<ffffffff81002ab8>] do_syscall_64+0x1be/0x1fa
> [ 111.090635] [<ffffffff8111d254>] ? do_page_fault+0x22/0x27
> [ 111.092428] [<ffffffff82c80722>] entry_SYSCALL64_slow_path+0x25/0x25
> [ 111.094213] Object at ffff8800087f4eb0, in cache vm_area_struct
> [ 111.095899] Object allocated with size 184 bytes.
> [ 111.097396] Allocation:
> [ 111.098505] PID = 307
> [ 111.099587] [<ffffffff810f473d>] save_stack_trace+0x25/0x40
> [ 111.108858] [<ffffffff81334733>] save_stack+0x46/0xce
> [ 111.110727] [<ffffffff81334d14>] kasan_kmalloc+0xb7/0xc6
> [ 111.112645] [<ffffffff81334d35>] kasan_slab_alloc+0x12/0x14
> [ 111.114589] [<ffffffff81330102>] slab_post_alloc_hook+0x38/0x45
> [ 111.116633] [<ffffffff81332bab>] kmem_cache_alloc+0xa8/0xb6
> [ 111.118546] [<ffffffff811a9b50>] copy_process+0x2323/0x424c
> [ 111.134489] [<ffffffff811abe13>] _do_fork+0x159/0x3d9
> [ 111.136389] [<ffffffff811ac105>] SyS_clone+0x14/0x16
> [ 111.138219] [<ffffffff81002ab8>] do_syscall_64+0x1be/0x1fa
> [ 111.140170] [<ffffffff82c80722>] return_from_SYSCALL_64+0x0/0x6a
> [ 111.142225] Memory state around the buggy address:
> [ 111.143913] ffff8800087f4e00: fc fc fc fc fc fc fc fc fc fc fc fc fc
> fc fc fc
>
> dmesg-yocto-ivb41-111:20160812160248:x86_64-randconfig-s0-
> 08040601:4.7.0-05999-g80a9201:1
>
> Starting udev
> [ 112.488293] power_supply test_ac: uevent
> ** 127 printk messages dropped ** [ 112.617229] [<ffffffff811aa2f2>]
> copy_process+0x2ac5/0x424c
> [ 112.617233] [<ffffffff811abe13>] _do_fork+0x159/0x3d9
> [ 112.617236] [<ffffffff811ac105>] SyS_clone+0x14/0x16
> [ 112.617239] [<ffffffff81002ab8>] do_syscall_64+0x1be/0x1fa
> ** 222 printk messages dropped ** [ 112.617893] [<ffffffff811ade96>] ?
> task_stopped_code+0xcb/0xcb
> ** 1244 printk messages dropped **
> dmesg-yocto-ivb41-115:20160812160246:x86_64-randconfig-s0-
> 08040601:4.7.0-05999-g80a9201:1
>
> /etc/rcS.d/S00fbsetup: line 3: /sbin/modprobe: not found
> Starting udev
> [ 112.596067] ==============================
> ===============================================
> [ 112.598922] BUG names_cache (Not tainted): Poison overwritten
> [ 112.600657] ------------------------------
> -----------------------------------------------
> [ 112.600657] [ 112.618436] Disabling lock debugging due to kernel taint
> [ 112.620090] INFO: 0xffff880009bea3cc-0xffff880009bea3cf. First byte
> 0x6e instead of 0x6b
> [ 112.622909] INFO: Allocated in getname_flags+0x5a/0x35c age=71 cpu=0
> pid=285
> [ 112.657427] INFO: Freed in qlist_free_all+0x33/0xac age=1 cpu=0 pid=452
> [ 112.705095] INFO: Slab 0xffffea000026fa00 objects=7 used=7 fp=0x
> (null) flags=0x4000000000004080
> [ 112.708087] INFO: Object 0xffff880009bea3c0 @offset=9152 fp=0x
> (null)
> [ 112.708087] [ 112.724701] Redzone ffff880009bea380: bb bb bb bb bb bb
> bb bb bb bb bb bb bb bb bb bb ................
> [ 112.756566] Redzone ffff880009bea390: bb bb bb bb bb bb bb bb bb bb bb
> bb bb bb bb bb ................
> [ 112.759561] Redzone ffff880009bea3a0: bb bb bb bb bb bb bb bb bb bb bb
> bb bb bb bb bb ................
> [ 112.775649] Redzone ffff880009bea3b0: bb bb bb bb bb bb bb bb bb bb bb
> bb bb bb bb bb ................
> [ 112.778746] Object ffff880009bea3c0: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b
> 6b 6e 01 40 d5 kkkkkkkkkkkkn.@.
> [ 112.781743] Object ffff880009bea3d0: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b
> 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
> [ 112.784844] Object ffff880009bea3e0: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b
> 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
>
> dmesg-yocto-ivb41-122:20160812160234:x86_64-randconfig-s0-
> 08040601:4.7.0-05999-g80a9201:1
>
> [ 103.749230] power_supply test_battery: prop MANUFACTURER=Linux
> [ 104.141979] power_supply test_battery: prop
> SERIAL_NUMBER=4.7.0-05999-g80a9201
> [ 104.484013] ==============================
> ===============================================
> [ 104.484018] BUG names_cache (Not tainted): Poison overwritten
> [ 104.484019] ------------------------------
> -----------------------------------------------
> [ 104.484019] [ 104.484020] Disabling lock debugging due to kernel taint
> [ 104.484023] INFO: 0xffff880007f3474d-0xffff880007f3474f. First byte
> 0x1 instead of 0x6b
> [ 104.484032] INFO: Allocated in getname_flags+0x5a/0x35c age=155 cpu=0
> pid=529
> [ 104.484064] INFO: Freed in qlist_free_all+0x33/0xac age=16 cpu=0 pid=592
> [ 104.484104] INFO: Slab 0xffffea00001fcc00 objects=7 used=7 fp=0x
> (null) flags=0x4000000000004080
> [ 104.484106] INFO: Object 0xffff880007f34740 @offset=18240 fp=0x
> (null)
> [ 104.484106] [ 104.484111] Redzone ffff880007f34700: bb bb bb bb bb bb
> bb bb bb bb bb bb bb bb bb bb ................
> [ 104.484114] Redzone ffff880007f34710: bb bb bb bb bb bb bb bb bb bb bb
> bb bb bb bb bb ................
> [ 104.484117] Redzone ffff880007f34720: bb bb bb bb bb bb bb bb bb bb bb
> bb bb bb bb bb ................
> [ 104.484120] Redzone ffff880007f34730: bb bb bb bb bb bb bb bb bb bb bb
> bb bb bb bb bb ................
> [ 104.484122] Object ffff880007f34740: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b
> 6b 6b 01 60 f7 kkkkkkkkkkkkk.`.
> [ 104.484125] Object ffff880007f34750: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b
> 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
> [ 104.484128] Object ffff880007f34760: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b
> 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
>
> dmesg-yocto-ivb41-132:20160812160253:x86_64-randconfig-s0-
> 08040601:4.7.0-05999-g80a9201:1
>
> /etc/rcS.d/S00fbsetup: line 3: /sbin/modprobe: not found
> Starting udev
> [ 112.029713] ==============================
> ====================================
> [ 112.032515] BUG: KASAN: use-after-free in __rb_insert_augmented+0x343/0x59f
> at addr ffff8800090af768
> [ 112.035635] Read of size 8 by task mount.sh/466
> [ 112.037302] CPU: 0 PID: 466 Comm: mount.sh Not tainted
> 4.7.0-05999-g80a9201 #1
> [ 112.039950] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS
> Debian-1.8.2-1 04/01/2014
> [ 112.043015] 0000000000000000 ffff88000806fb58 ffffffff81c91ab5
> ffff88000806fbd0
> [ 112.046337] ffffffff8133576b ffffffff81c9eeac 0000000000000246
> ffff8800081d5b88
> [ 112.049624] ffff88000806fbc0 ffffffff81334d14 024000c0081d44e8
> 0000000000000001
> [ 112.055593] Call Trace:
> [ 112.056850] [<ffffffff81c91ab5>] dump_stack+0x19/0x1b
> [ 112.061900] [<ffffffff8133576b>] kasan_report+0x319/0x553
> [ 112.063705] [<ffffffff81c9eeac>] ? __rb_insert_augmented+0x343/0x59f
> [ 112.065686] [<ffffffff81334d14>] ? kasan_kmalloc+0xb7/0xc6
> [ 112.072750] [<ffffffff813359fb>] __asan_report_load8_noabort+0x14/0x16
> [ 112.074793] [<ffffffff81c9eeac>] __rb_insert_augmented+0x343/0x59f
> [ 112.076784] [<ffffffff812f6cfd>] ? vma_interval_tree_augment_prop
> agate+0x75/0x75
> [ 112.079403] [<ffffffff812f7c25>] vma_interval_tree_insert_after
> +0x1b6/0x1c3
> [ 112.081516] [<ffffffff811a9e51>] copy_process+0x2624/0x424c
> [ 112.083461] [<ffffffff811a782d>] ? __cleanup_sighand+0x23/0x23
> [ 112.085280] [<ffffffff81380da8>] ? put_unused_fd+0x6f/0x6f
> [ 112.087025] [<ffffffff811f1079>] ? ___might_sleep+0xa4/0x321
> [ 112.088807] [<ffffffff811abe13>] _do_fork+0x159/0x3d9
> [ 112.090562] [<ffffffff811abcba>] ? fork_idle+0x1ed/0x1ed
> [ 112.092348] [<ffffffff813596a7>] ? __do_pipe_flags+0x1aa/0x1aa
> [ 112.094270] [<ffffffff8111d106>] ? __do_page_fault+0x519/0x624
> [ 112.096169] [<ffffffff82c80800>] ? ptregs_sys_rt_sigreturn+0x10/0x10
> [ 112.098134] [<ffffffff811ac105>] SyS_clone+0x14/0x16
> [ 112.099854] [<ffffffff81002ab8>] do_syscall_64+0x1be/0x1fa
> [ 112.101750] [<ffffffff8111d254>] ? do_page_fault+0x22/0x27
> [ 112.103686] [<ffffffff82c80722>] entry_SYSCALL64_slow_path+0x25/0x25
> [ 112.105501] Object at ffff8800090af710, in cache vm_area_struct
> [ 112.107338] Object allocated with size 184 bytes.
> [ 112.110479] Allocation:
> [ 112.111710] PID = 458
> [ 112.112890] [<ffffffff810f473d>] save_stack_trace+0x25/0x40
> [ 112.114854] [<ffffffff81334733>] save_stack+0x46/0xce
> [ 112.116744] [<ffffffff81334d14>] kasan_kmalloc+0xb7/0xc6
> [ 112.118671] [<ffffffff81334d35>] kasan_slab_alloc+0x12/0x14
> [ 112.122769] [<ffffffff81330102>] slab_post_alloc_hook+0x38/0x45
> [ 112.124716] [<ffffffff81332bab>] kmem_cache_alloc+0xa8/0xb6
> [ 112.143510] [<ffffffff811a9b50>] copy_process+0x2323/0x424c
> [ 112.145784] [<ffffffff811abe13>] _do_fork+0x159/0x3d9
> [ 112.147724] [<ffffffff811ac105>] SyS_clone+0x14/0x16
> [ 112.149579] [<ffffffff81002ab8>] do_syscall_64+0x1be/0x1fa
> [ 112.151508] [<ffffffff82c80722>] return_from_SYSCALL_64+0x0/0x6a
> [ 112.153543] Memory state around the buggy address:
> [ 112.155232] ffff8800090af600: fc fc fc fc fc fc fc fc fc fc fc fc fc
> fc fc fc
>
> dmesg-yocto-ivb41-133:20160812160230:x86_64-randconfig-s0-
> 08040601:4.7.0-05999-g80a9201:1
>
> /etc/rcS.d/S00fbsetup: line 3: /sbin/modprobe: not found
> Starting udev
> [ 106.248948] ==============================
> ====================================
> [ 106.251786] BUG: KASAN: use-after-free in get_page_from_freelist+0x49/0xb73
> at addr ffff88000840fa40
> [ 106.272766] Read of size 8 by task expr/528
> [ 106.274336] page:ffffea00002103c0 count:0 mapcount:0 mapping:
> (null) index:0x0
> [ 106.277274] flags: 0x4000000000000000()
> [ 106.278619] page dumped because: kasan: bad access detected
> [ 106.280250] CPU: 0 PID: 528 Comm: expr Not tainted 4.7.0-05999-g80a9201
> #1
> [ 106.282090] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS
> Debian-1.8.2-1 04/01/2014
> [ 106.284933] 0000000000000000 ffff88000840f778 ffffffff81c91ab5
> ffff88000840f7f0
> [ 106.301199] ffffffff8133585b ffffffff812c89be 0000000000000246
> 0000000000000001
> [ 106.304352] ffffffff83e63818 0000000000000000 ffffea00000fbc60
> 0000000000000000
> [ 106.307318] Call Trace:
> [ 106.308442] [<ffffffff81c91ab5>] dump_stack+0x19/0x1b
> [ 106.310001] [<ffffffff8133585b>] kasan_report+0x409/0x553
> [ 106.324707] [<ffffffff812c89be>] ? get_page_from_freelist+0x49/0xb73
> [ 106.326679] [<ffffffff813359fb>] __asan_report_load8_noabort+0x14/0x16
> [ 106.328639] [<ffffffff812c89be>] get_page_from_freelist+0x49/0xb73
> [ 106.330529] [<ffffffff812c7e42>] ? __rmqueue+0x7f/0x32f
> [ 106.332117] [<ffffffff812ca07d>] __alloc_pages_nodemask+0x2b8/0x1199
> [ 106.333907] [<ffffffff812c91dd>] ? get_page_from_freelist+0x868/0xb73
> [ 106.335699] [<ffffffff812c9dc5>] ? gfp_pfmemalloc_allowed+0x11/0x11
> [ 106.350531] [<ffffffff8133499c>] ? kasan_alloc_pages+0x39/0x3b
>
> dmesg-yocto-ivb41-135:20160812160229:x86_64-randconfig-s0-
> 08040601:4.7.0-05999-g80a9201:1
>
> /etc/rcS.d/S00fbsetup: line 3: /sbin/modprobe: not found
> Starting udev
> [ 105.892255] ==============================
> ===============================================
> [ 105.901019] BUG kmalloc-128 (Not tainted): Poison overwritten
> [ 105.902922] ------------------------------
> -----------------------------------------------
> [ 105.902922] [ 105.906433] Disabling lock debugging due to kernel taint
> [ 105.914324] INFO: 0xffff88000845f5b4-0xffff88000845f5b7. First byte
> 0x6d instead of 0x6b
> [ 105.919465] INFO: Allocated in kzalloc+0xe/0x10 age=148 cpu=0 pid=268
> [ 105.962987] INFO: Freed in qlist_free_all+0x33/0xac age=97 cpu=0 pid=470
> [ 106.001540] INFO: Slab 0xffffea00002117c0 objects=8 used=8 fp=0x
> (null) flags=0x4000000000000080
> [ 106.012655] INFO: Object 0xffff88000845f5a8 @offset=1448
> fp=0xffff88000845f008
> [ 106.012655] [ 106.016241] Redzone ffff88000845f5a0: bb bb bb bb bb bb
> bb bb ........
> [ 106.055850] Object ffff88000845f5a8: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b
> 6b 6d 01 60 e2 kkkkkkkkkkkkm.`.
> [ 106.058718] Object ffff88000845f5b8: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b
> 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
> [ 106.070047] Object ffff88000845f5c8: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b
> 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk
>
> dmesg-yocto-ivb41-13:20160812160250:x86_64-randconfig-s0-
> 08040601:4.7.0-05999-g80a9201:1
>
> [ 107.789093] power_supply test_ac: uevent
> [ 107.879899] power_supply test_ac: POWER_SUPPLY_NAME=test_ac
> [ 108.143440] ==============================
> ===============================================
> [ 108.143454] BUG anon_vma_chain (Not tainted): Poison overwritten
> [ 108.143456] ------------------------------
> -----------------------------------------------
> [ 108.143456] [ 108.143460] Disabling lock debugging due to kernel taint
> [ 108.143465] INFO: 0xffff8800081d5054-0xffff8800081d5057. First byte
> 0x6c instead of 0x6b
> [ 108.143524] INFO: Allocate...
[-- Attachment #2: Type: text/html, Size: 75608 bytes --]
prev parent reply other threads:[~2016-08-12 10:36 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-08-11 4:52 kernel test robot
2016-08-11 20:35 ` Andrew Morton
2016-08-12 7:48 ` Fengguang Wu
2016-08-12 9:57 ` Fengguang Wu
2016-08-12 10:35 ` Alexander Potapenko [this message]
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