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zb4JHtAaTWTe8paes4a4t0lIKxz8M2iZaXP8IBZpiTsICuLLU8nS2pyuYM8FvgNfrUwRmytRVyuE6gFlHp3rbqR6bhQFeoN3JdeSlmAPXW4VPwoNMLYOoI+W4K7N1G8RSHTqndcVc6rNwX5pzRpSxqrKkTvFid6P7fZTB+8+Wrj9WHww0QKOj9WUQghF5nlC1Iz+7wa2igv+5EmScn4Kjcug8/fFCKyZgYK/Fflyt5xG4SGKyht8x5phyUoaC7nieEjAVYFUAd66Xpei2HA7wOP79syhlGgD1ECrqSukA1TRoL4fdvfnHOMa2fZBZqTkBhgjCWmavHeF/5VxJFcVXaKEi1+SwZ85pDnuNp/+vdXT2BofpzIEvL0jPhUPOFS2xKHvcKGLOPUv9kf6JVT+ehDoKZA66VA90o/3uIQLKhVcuYPBAIFBGUgQUlTArrverm7C84PYpQnOsQl7Pz491FffvK531q1dWbQ1yLJJYJIFLYhk4GjUUQjxsS3ycSdMUuFSO1HH2miXQFlxr0NxDrGVPCNvA9XeoF29k8ADNV/IrGxqP6ew6RLLLJ1vX9xtLBX3nmYnsuT08gmmoHH0O8BkkVAEauCSH475qwIAGD8r+x4feGvV4yRdTcnIbGaSSfPV1PmQNfSusDp7eW7vQI9nG1+c6uXU2KPisVK0d09Zgs04= X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: Hello, kernel test robot noticed "WARNING:at_include/linux/rwsem.h:#anon_vma_name" on: commit: 5c3ce17006c6188d249bc07bfa639f2d76bbd8ac ("[PATCH v4 6/7] mm/maps: read proc/pid/maps under per-vma lock") url: https://github.com/intel-lab-lkp/linux/commits/Suren-Baghdasaryan/selftests-proc-add-proc-pid-maps-tearing-from-vma-split-test/20250605-071433 patch link: https://lore.kernel.org/all/20250604231151.799834-7-surenb@google.com/ patch subject: [PATCH v4 6/7] mm/maps: read proc/pid/maps under per-vma lock in testcase: locktorture version: with following parameters: runtime: 300s test: cpuhotplug config: x86_64-randconfig-005-20250606 compiler: clang-20 test machine: qemu-system-x86_64 -enable-kvm -cpu SandyBridge -smp 2 -m 16G (please refer to attached dmesg/kmsg for entire log/backtrace) +-------------------------------------------------------------------------------+------------+------------+ | | fa0f347301 | 5c3ce17006 | +-------------------------------------------------------------------------------+------------+------------+ | WARNING:at_include/linux/rwsem.h:#anon_vma_name | 0 | 10 | | RIP:anon_vma_name | 0 | 10 | +-------------------------------------------------------------------------------+------------+------------+ If you fix the issue in a separate patch/commit (i.e. not just a new version of the same patch/commit), kindly add following tags | Reported-by: kernel test robot | Closes: https://lore.kernel.org/oe-lkp/202506101503.903c6ffa-lkp@intel.com [ 41.709983][ T353] ------------[ cut here ]------------ [ 41.710541][ T353] WARNING: CPU: 1 PID: 353 at include/linux/rwsem.h:195 anon_vma_name (include/linux/rwsem.h:195) [ 41.711251][ T353] Modules linked in: [ 41.711616][ T353] CPU: 1 UID: 0 PID: 353 Comm: grep Tainted: G T 6.15.0-11198-g5c3ce17006c6 #1 PREEMPT ce6b47a049c5ee6720891bd644c96f2c3c349eba [ 41.712738][ T353] Tainted: [T]=RANDSTRUCT [ 41.713101][ T353] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.16.2-debian-1.16.2-1 04/01/2014 [ 41.713902][ T353] RIP: 0010:anon_vma_name (include/linux/rwsem.h:195) [ 41.714327][ T353] Code: 74 28 48 83 c3 40 48 89 d8 48 c1 e8 03 42 80 3c 38 00 74 08 48 89 df e8 ac 4b 02 00 48 8b 03 5b 41 5e 41 5f c3 cc cc cc cc cc <0f> 0b eb d4 48 c7 c1 74 46 b4 89 80 e1 07 80 c1 03 38 c1 7c 87 48 All code ======== 0: 74 28 je 0x2a 2: 48 83 c3 40 add $0x40,%rbx 6: 48 89 d8 mov %rbx,%rax 9: 48 c1 e8 03 shr $0x3,%rax d: 42 80 3c 38 00 cmpb $0x0,(%rax,%r15,1) 12: 74 08 je 0x1c 14: 48 89 df mov %rbx,%rdi 17: e8 ac 4b 02 00 call 0x24bc8 1c: 48 8b 03 mov (%rbx),%rax 1f: 5b pop %rbx 20: 41 5e pop %r14 22: 41 5f pop %r15 24: c3 ret 25: cc int3 26: cc int3 27: cc int3 28: cc int3 29: cc int3 2a:* 0f 0b ud2 <-- trapping instruction 2c: eb d4 jmp 0x2 2e: 48 c7 c1 74 46 b4 89 mov $0xffffffff89b44674,%rcx 35: 80 e1 07 and $0x7,%cl 38: 80 c1 03 add $0x3,%cl 3b: 38 c1 cmp %al,%cl 3d: 7c 87 jl 0xffffffffffffffc6 3f: 48 rex.W Code starting with the faulting instruction =========================================== 0: 0f 0b ud2 2: eb d4 jmp 0xffffffffffffffd8 4: 48 c7 c1 74 46 b4 89 mov $0xffffffff89b44674,%rcx b: 80 e1 07 and $0x7,%cl e: 80 c1 03 add $0x3,%cl 11: 38 c1 cmp %al,%cl 13: 7c 87 jl 0xffffffffffffff9c 15: 48 rex.W [ 41.715798][ T353] RSP: 0018:ffffc90002dcf9d8 EFLAGS: 00010246 [ 41.716286][ T353] RAX: 0000000000000000 RBX: ffff888135319c40 RCX: ffffc90002dcfa78 [ 41.716889][ T353] RDX: ffffc90002dcfa70 RSI: ffff88816ea2bc30 RDI: ffff88816d7485a8 [ 41.717509][ T353] RBP: ffffc90002dcfa80 R08: 0000000000000000 R09: 0000000000000002 [ 41.718117][ T353] R10: 0000000000000000 R11: ffffffff81ebd610 R12: dffffc0000000000 [ 41.718710][ T353] R13: ffff888135319d10 R14: ffff888135319d10 R15: dffffc0000000000 [ 41.719318][ T353] FS: 00007f17e7a81740(0000) GS:ffff88842312b000(0000) knlGS:0000000000000000 [ 41.719998][ T353] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 41.720503][ T353] CR2: 000055c5de49dc78 CR3: 0000000135bcc000 CR4: 00000000000406b0 [ 41.721114][ T353] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 41.721717][ T353] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 41.722373][ T353] Call Trace: [ 41.722640][ T353] [ 41.722881][ T353] get_vma_name (fs/proc/task_mmu.c:?) [ 41.723253][ T353] show_map_vma (fs/proc/task_mmu.c:509) [ 41.723617][ T353] show_map (fs/proc/task_mmu.c:525) [ 41.723922][ T353] seq_read_iter (fs/seq_file.c:231) [ 41.724311][ T353] seq_read (fs/seq_file.c:162) [ 41.724653][ T353] vfs_read (fs/read_write.c:570) [ 41.724981][ T353] ? do_syscall_64 (arch/x86/entry/syscall_64.c:113) [ 41.725384][ T353] ksys_read (fs/read_write.c:715) [ 41.725703][ T353] ? entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) [ 41.726174][ T353] do_syscall_64 (arch/x86/entry/syscall_64.c:?) [ 41.726538][ T353] ? find_held_lock (kernel/locking/lockdep.c:5353) [ 41.726900][ T353] ? exc_page_fault (arch/x86/include/asm/irqflags.h:26 arch/x86/include/asm/irqflags.h:109 arch/x86/include/asm/irqflags.h:151 arch/x86/mm/fault.c:1484 arch/x86/mm/fault.c:1532) [ 41.727288][ T353] ? do_user_addr_fault (arch/x86/include/asm/atomic.h:93 include/linux/atomic/atomic-arch-fallback.h:949 include/linux/atomic/atomic-instrumented.h:401 include/linux/refcount.h:389 include/linux/refcount.h:432 include/linux/mmap_lock.h:142 include/linux/mmap_lock.h:237 arch/x86/mm/fault.c:1338) [ 41.727706][ T353] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:473) [ 41.728190][ T353] ? exc_page_fault (arch/x86/mm/fault.c:1536) [ 41.728590][ T353] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) [ 41.729073][ T353] RIP: 0033:0x7f17e7b7c19d [ 41.729432][ T353] Code: 31 c0 e9 c6 fe ff ff 50 48 8d 3d 66 54 0a 00 e8 49 ff 01 00 66 0f 1f 84 00 00 00 00 00 80 3d 41 24 0e 00 00 74 17 31 c0 0f 05 <48> 3d 00 f0 ff ff 77 5b c3 66 2e 0f 1f 84 00 00 00 00 00 48 83 ec All code ======== 0: 31 c0 xor %eax,%eax 2: e9 c6 fe ff ff jmp 0xfffffffffffffecd 7: 50 push %rax 8: 48 8d 3d 66 54 0a 00 lea 0xa5466(%rip),%rdi # 0xa5475 f: e8 49 ff 01 00 call 0x1ff5d 14: 66 0f 1f 84 00 00 00 nopw 0x0(%rax,%rax,1) 1b: 00 00 1d: 80 3d 41 24 0e 00 00 cmpb $0x0,0xe2441(%rip) # 0xe2465 24: 74 17 je 0x3d 26: 31 c0 xor %eax,%eax 28: 0f 05 syscall 2a:* 48 3d 00 f0 ff ff cmp $0xfffffffffffff000,%rax <-- trapping instruction 30: 77 5b ja 0x8d 32: c3 ret 33: 66 2e 0f 1f 84 00 00 cs nopw 0x0(%rax,%rax,1) 3a: 00 00 00 3d: 48 rex.W 3e: 83 .byte 0x83 3f: ec in (%dx),%al Code starting with the faulting instruction =========================================== 0: 48 3d 00 f0 ff ff cmp $0xfffffffffffff000,%rax 6: 77 5b ja 0x63 8: c3 ret 9: 66 2e 0f 1f 84 00 00 cs nopw 0x0(%rax,%rax,1) 10: 00 00 00 13: 48 rex.W 14: 83 .byte 0x83 15: ec in (%dx),%al [ 41.730862][ T353] RSP: 002b:00007fffc13c12e8 EFLAGS: 00000246 ORIG_RAX: 0000000000000000 [ 41.731448][ T353] RAX: ffffffffffffffda RBX: 00007fffc13c138c RCX: 00007f17e7b7c19d [ 41.732038][ T353] RDX: 0000000000002000 RSI: 00007f17e7a20000 RDI: 0000000000000003 [ 41.732635][ T353] RBP: 00007fffc13c1390 R08: 00000000ffffffff R09: 0000000000000000 [ 41.733252][ T353] R10: 0000000000000022 R11: 0000000000000246 R12: 0000000000000003 [ 41.733850][ T353] R13: 0000000000001000 R14: 000055c5de485951 R15: 0000000000002000 [ 41.734481][ T353] [ 41.734719][ T353] irq event stamp: 3793 [ 41.735058][ T353] hardirqs last enabled at (3805): __console_unlock (arch/x86/include/asm/irqflags.h:26 arch/x86/include/asm/irqflags.h:109 arch/x86/include/asm/irqflags.h:151 kernel/printk/printk.c:344 kernel/printk/printk.c:2885) [ 41.735754][ T353] hardirqs last disabled at (3814): __console_unlock (kernel/printk/printk.c:342) [ 41.736478][ T353] softirqs last enabled at (3488): handle_softirqs (arch/x86/include/asm/preempt.h:27 kernel/softirq.c:426 kernel/softirq.c:607) [ 41.737219][ T353] softirqs last disabled at (3835): __irq_exit_rcu (arch/x86/include/asm/atomic.h:23) [ 41.737925][ T353] ---[ end trace 0000000000000000 ]--- The kernel config and materials to reproduce are available at: https://download.01.org/0day-ci/archive/20250610/202506101503.903c6ffa-lkp@intel.com -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki