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 sqJuZDwT 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 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_mm/page_counter.c:#page_counter_cancel" on: commit: 214583b2262ef6157ee9834fa23a7da8f2292dd2 ("[PATCH v1 2/4] mm: memcg: merge multiple page_counters into a single structure") url: https://github.com/intel-lab-lkp/linux/commits/Roman-Gushchin/mm-memcg-convert-enum-res_type-to-mem_counter_type/20240504-042046 base: https://git.kernel.org/cgit/linux/kernel/git/akpm/mm.git mm-everything patch link: https://lore.kernel.org/all/20240503201835.2969707-3-roman.gushchin@linux.dev/ patch subject: [PATCH v1 2/4] mm: memcg: merge multiple page_counters into a single structure in testcase: ltp version: ltp-x86_64-14c1f76-1_20240504 with following parameters: disk: 1HDD fs: xfs test: syscalls-03 compiler: gcc-13 test machine: 4 threads 1 sockets Intel(R) Core(TM) i3-3220 CPU @ 3.30GHz (Ivy Bridge) with 8G memory (please refer to attached dmesg/kmsg for entire log/backtrace) 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/202405101421.84a43285-lkp@intel.com kern :warn : [ 551.565920] ------------[ cut here ]------------ kern :warn : [ 551.573137] page_counter underflow: -512 nr_pages=512 kern :warn : [ 551.585841] WARNING: CPU: 0 PID: 6724 at mm/page_counter.c:58 page_counter_cancel (mm/page_counter.c:58 (discriminator 1)) kern :warn : [ 551.810031] CPU: 0 PID: 6724 Comm: memfd_create03 Tainted: G S 6.9.0-rc4-00574-g214583b2262e #1 kern :warn : [ 551.820871] Hardware name: Hewlett-Packard HP Pro 3340 MT/17A1, BIOS 8.07 01/24/2013 kern :warn : [ 551.829368] RIP: 0010:page_counter_cancel (mm/page_counter.c:58 (discriminator 1)) kern :warn : [ 551.835103] Code: 3c 02 00 75 4f 49 c7 04 24 00 00 00 00 31 f6 e9 71 ff ff ff 48 89 ea 48 c7 c7 a0 88 f6 83 c6 05 06 21 d6 03 01 e8 84 d9 72 ff <0f> 0b eb ad 48 89 34 24 e8 d7 94 fb ff 48 8b 34 24 e9 67 ff ff ff All code ======== 0: 3c 02 cmp $0x2,%al 2: 00 75 4f add %dh,0x4f(%rbp) 5: 49 c7 04 24 00 00 00 movq $0x0,(%r12) c: 00 d: 31 f6 xor %esi,%esi f: e9 71 ff ff ff jmp 0xffffffffffffff85 14: 48 89 ea mov %rbp,%rdx 17: 48 c7 c7 a0 88 f6 83 mov $0xffffffff83f688a0,%rdi 1e: c6 05 06 21 d6 03 01 movb $0x1,0x3d62106(%rip) # 0x3d6212b 25: e8 84 d9 72 ff call 0xffffffffff72d9ae 2a:* 0f 0b ud2 <-- trapping instruction 2c: eb ad jmp 0xffffffffffffffdb 2e: 48 89 34 24 mov %rsi,(%rsp) 32: e8 d7 94 fb ff call 0xfffffffffffb950e 37: 48 8b 34 24 mov (%rsp),%rsi 3b: e9 67 ff ff ff jmp 0xffffffffffffffa7 Code starting with the faulting instruction =========================================== 0: 0f 0b ud2 2: eb ad jmp 0xffffffffffffffb1 4: 48 89 34 24 mov %rsi,(%rsp) 8: e8 d7 94 fb ff call 0xfffffffffffb94e4 d: 48 8b 34 24 mov (%rsp),%rsi 11: e9 67 ff ff ff jmp 0xffffffffffffff7d kern :warn : [ 551.854617] RSP: 0018:ffffc9000817fb58 EFLAGS: 00010286 kern :warn : [ 551.860610] RAX: 0000000000000000 RBX: ffff8881001c4100 RCX: ffffffff8239a90e kern :warn : [ 551.868499] RDX: 1ffff11030706a6c RSI: 0000000000000008 RDI: ffff888183835360 kern :warn : [ 551.876394] RBP: 0000000000000200 R08: 0000000000000001 R09: fffff5200102ff23 kern :warn : [ 551.884295] R10: ffffc9000817f91f R11: 205d363233542020 R12: ffff8881001c4100 kern :warn : [ 551.892184] R13: 0000000000000000 R14: 0000000000000000 R15: ffffffff869a1de8 kern :warn : [ 551.900067] FS: 00007f45c0bc1740(0000) GS:ffff888183800000(0000) knlGS:0000000000000000 kern :warn : [ 551.908910] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 kern :warn : [ 551.915420] CR2: 00007f45c0c73900 CR3: 0000000206448002 CR4: 00000000001706f0 kern :warn : [ 551.923304] Call Trace: kern :warn : [ 551.926508] kern :warn : [ 551.929366] ? __warn (kernel/panic.c:694) kern :warn : [ 551.933354] ? page_counter_cancel (mm/page_counter.c:58 (discriminator 1)) kern :warn : [ 551.938467] ? report_bug (lib/bug.c:180 lib/bug.c:219) kern :warn : [ 551.942892] ? handle_bug (arch/x86/kernel/traps.c:239 (discriminator 1)) kern :warn : [ 551.947142] ? exc_invalid_op (arch/x86/kernel/traps.c:260 (discriminator 1)) kern :warn : [ 551.951741] ? asm_exc_invalid_op (arch/x86/include/asm/idtentry.h:621) kern :warn : [ 551.956684] ? llist_add_batch (lib/llist.c:33 (discriminator 14)) kern :warn : [ 551.961451] ? page_counter_cancel (mm/page_counter.c:58 (discriminator 1)) kern :warn : [ 551.966564] ? page_counter_cancel (mm/page_counter.c:58 (discriminator 1)) kern :warn : [ 551.971674] page_counter_uncharge (mm/page_counter.c:168 (discriminator 3)) kern :warn : [ 551.976706] hugetlb_cgroup_uncharge_counter (mm/hugetlb_cgroup.c:392) kern :warn : [ 551.982684] hugetlb_vm_op_close (mm/hugetlb.c:5222) kern :warn : [ 551.987713] remove_vma (mm/mmap.c:142) kern :warn : [ 551.991870] do_vmi_align_munmap (mm/mmap.c:2336 mm/mmap.c:2685) kern :warn : [ 551.996897] ? __pfx_do_vmi_align_munmap (mm/mmap.c:2561) kern :warn : [ 552.002446] do_vmi_munmap (mm/mmap.c:2757) kern :warn : [ 552.006948] __vm_munmap (mm/mmap.c:3036) kern :warn : [ 552.011288] ? __pfx___vm_munmap (mm/mmap.c:3027) kern :warn : [ 552.016138] ? __pfx_ksys_write (fs/read_write.c:633) kern :warn : [ 552.020914] __x64_sys_munmap (mm/mmap.c:3050) kern :warn : [ 552.025509] do_syscall_64 (arch/x86/entry/common.c:52 (discriminator 1) arch/x86/entry/common.c:83 (discriminator 1)) kern :warn : [ 552.029924] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) kern :warn : [ 552.035733] RIP: 0033:0x7f45c0cc58f7 kern :warn : [ 552.040067] Code: 00 00 00 48 8b 15 09 05 0d 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 b8 0b 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d d9 04 0d 00 f7 d8 64 89 01 48 All code ======== 0: 00 00 add %al,(%rax) 2: 00 48 8b add %cl,-0x75(%rax) 5: 15 09 05 0d 00 adc $0xd0509,%eax a: f7 d8 neg %eax c: 64 89 02 mov %eax,%fs:(%rdx) f: 48 c7 c0 ff ff ff ff mov $0xffffffffffffffff,%rax 16: c3 ret 17: 66 2e 0f 1f 84 00 00 cs nopw 0x0(%rax,%rax,1) 1e: 00 00 00 21: 66 90 xchg %ax,%ax 23: b8 0b 00 00 00 mov $0xb,%eax 28: 0f 05 syscall 2a:* 48 3d 01 f0 ff ff cmp $0xfffffffffffff001,%rax <-- trapping instruction 30: 73 01 jae 0x33 32: c3 ret 33: 48 8b 0d d9 04 0d 00 mov 0xd04d9(%rip),%rcx # 0xd0513 3a: f7 d8 neg %eax 3c: 64 89 01 mov %eax,%fs:(%rcx) 3f: 48 rex.W Code starting with the faulting instruction =========================================== 0: 48 3d 01 f0 ff ff cmp $0xfffffffffffff001,%rax 6: 73 01 jae 0x9 8: c3 ret 9: 48 8b 0d d9 04 0d 00 mov 0xd04d9(%rip),%rcx # 0xd04e9 10: f7 d8 neg %eax 12: 64 89 01 mov %eax,%fs:(%rcx) 15: 48 rex.W The kernel config and materials to reproduce are available at: https://download.01.org/0day-ci/archive/20240510/202405101421.84a43285-lkp@intel.com -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki