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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: 在 2024/8/23 10:33, kernel test robot 写道: > [Some people who received this message don't often get email from oliver.sang@intel.com. Learn why this is important at https://aka.ms/LearnAboutSenderIdentification ] > > Hello, > > kernel test robot noticed "WARNING:at_mm/rmap.c:#unlink_anon_vmas" on: > > commit: ae307233d6efc18c3d6015b127b099450ca8588e ("[PATCH] mm: vma remove the redundant avc binded with old folio") > url: https://github.com/intel-lab-lkp/linux/commits/Zhiguo-Jiang/mm-vma-remove-the-redundant-avc-binded-with-old-folio/20240820-223531 > base: https://git.kernel.org/cgit/linux/kernel/git/akpm/mm.git mm-everything > patch link: https://lore.kernel.org/all/20240820143359.199-1-justinjiang@vivo.com/ > patch subject: [PATCH] mm: vma remove the redundant avc binded with old folio > > in testcase: boot > > compiler: gcc-12 > test machine: qemu-system-x86_64 -enable-kvm -cpu SandyBridge -smp 2 -m 16G > > (please refer to attached dmesg/kmsg for entire log/backtrace) > > > +----------------------------------------+------------+------------+ > | | 75bee94793 | ae307233d6 | > +----------------------------------------+------------+------------+ > | WARNING:at_mm/rmap.c:#unlink_anon_vmas | 0 | 6 | > | RIP:unlink_anon_vmas | 0 | 6 | > +----------------------------------------+------------+------------+ > > > 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/202408230938.43f55b4-lkp@intel.com Fix the issue, please help to review again. https://lore.kernel.org/linux-mm/20240823140139.263-1-justinjiang@vivo.com/T/#u Thanks Zhiguo > > > [ 36.655884][ T197] ------------[ cut here ]------------ > [ 36.656843][ T197] WARNING: CPU: 1 PID: 197 at mm/rmap.c:443 unlink_anon_vmas (mm/rmap.c:443 (discriminator 1)) > [ 36.658183][ T197] Modules linked in: sg ata_piix libata crc32_pclmul crc32c_intel scsi_mod polyval_clmulni polyval_generic ghash_clmulni_intel sha512_ssse3 aesni_intel scsi_common cmdlinepart > [ 36.660508][ T197] CPU: 1 UID: 0 PID: 197 Comm: lkp-bootstrap Tainted: G T 6.11.0-rc3-00378-gae307233d6ef #1 5ff8330b382acbcd2719e520175822ac6c64d0eb > [ 36.662685][ T197] Tainted: [T]=RANDSTRUCT > [ 36.663288][ T197] RIP: 0010:unlink_anon_vmas (mm/rmap.c:443 (discriminator 1)) > [ 36.668434][ T197] Code: 7f fe ff ff 48 83 c4 28 5b 5d 41 5c 41 5d 41 5e 41 5f 31 c0 31 d2 31 c9 31 f6 31 ff 45 31 c0 45 31 c9 c3 90 0f 0b 90 eb ad 90 <0f> 0b 90 eb 82 90 0f 0b 90 48 8d 7e 08 e8 2d a2 bf ff e9 ca fc ff > All code > ======== > 0: 7f fe jg 0x0 > 2: ff (bad) > 3: ff 48 83 decl -0x7d(%rax) > 6: c4 (bad) > 7: 28 5b 5d sub %bl,0x5d(%rbx) > a: 41 5c pop %r12 > c: 41 5d pop %r13 > e: 41 5e pop %r14 > 10: 41 5f pop %r15 > 12: 31 c0 xor %eax,%eax > 14: 31 d2 xor %edx,%edx > 16: 31 c9 xor %ecx,%ecx > 18: 31 f6 xor %esi,%esi > 1a: 31 ff xor %edi,%edi > 1c: 45 31 c0 xor %r8d,%r8d > 1f: 45 31 c9 xor %r9d,%r9d > 22: c3 ret > 23: 90 nop > 24: 0f 0b ud2 > 26: 90 nop > 27: eb ad jmp 0xffffffffffffffd6 > 29: 90 nop > 2a:* 0f 0b ud2 <-- trapping instruction > 2c: 90 nop > 2d: eb 82 jmp 0xffffffffffffffb1 > 2f: 90 nop > 30: 0f 0b ud2 > 32: 90 nop > 33: 48 8d 7e 08 lea 0x8(%rsi),%rdi > 37: e8 2d a2 bf ff call 0xffffffffffbfa269 > 3c: e9 .byte 0xe9 > 3d: ca fc ff lret $0xfffc > > Code starting with the faulting instruction > =========================================== > 0: 0f 0b ud2 > 2: 90 nop > 3: eb 82 jmp 0xffffffffffffff87 > 5: 90 nop > 6: 0f 0b ud2 > 8: 90 nop > 9: 48 8d 7e 08 lea 0x8(%rsi),%rdi > d: e8 2d a2 bf ff call 0xffffffffffbfa23f > 12: e9 .byte 0xe9 > 13: ca fc ff lret $0xfffc > [ 36.671148][ T197] RSP: 0000:ffffc900019ffad8 EFLAGS: 00010202 > [ 36.671931][ T197] RAX: 1ffff1102e73f0bf RBX: ffff888173c55ab0 RCX: 0000000000000000 > [ 36.672880][ T197] RDX: 1ffff110241d68e2 RSI: 0000000000000000 RDI: ffff8881739f85f8 > [ 36.673933][ T197] RBP: ffff888120eb4700 R08: 0000000000000000 R09: 0000000000000000 > [ 36.675002][ T197] R10: 0000000000000000 R11: 0000000000000000 R12: ffff8881739f8550 > [ 36.676082][ T197] R13: ffff888173c55aa0 R14: dffffc0000000000 R15: ffff888120eb4710 > [ 36.677134][ T197] FS: 0000000000000000(0000) GS:ffff8883af300000(0000) knlGS:0000000000000000 > [ 36.678328][ T197] CS: 0010 DS: 002b ES: 002b CR0: 0000000080050033 > [ 36.679207][ T197] CR2: 000000005663e33c CR3: 000000012021c000 CR4: 00000000000406b0 > [ 36.680251][ T197] Call Trace: > [ 36.680681][ T197] > [ 36.681079][ T197] ? __warn (kernel/panic.c:735) > [ 36.681682][ T197] ? unlink_anon_vmas (mm/rmap.c:443 (discriminator 1)) > [ 36.682312][ T197] ? report_bug (lib/bug.c:180 lib/bug.c:219) > [ 36.682920][ T197] ? handle_bug (arch/x86/kernel/traps.c:239) > [ 36.683494][ T197] ? exc_invalid_op (arch/x86/kernel/traps.c:260 (discriminator 1)) > [ 36.684125][ T197] ? asm_exc_invalid_op (arch/x86/include/asm/idtentry.h:621) > [ 36.684804][ T197] ? unlink_anon_vmas (mm/rmap.c:443 (discriminator 1)) > [ 36.685501][ T197] ? unlink_anon_vmas (mm/rmap.c:400) > [ 36.686185][ T197] free_pgtables (mm/memory.c:410) > [ 36.686819][ T197] ? free_pgd_range (mm/memory.c:367) > [ 36.687466][ T197] ? preempt_count_add (include/linux/ftrace.h:976 kernel/sched/core.c:5634 kernel/sched/core.c:5659) > [ 36.688179][ T197] exit_mmap (mm/mmap.c:1934) > [ 36.688758][ T197] ? trace_contention_end (include/trace/events/lock.h:122 (discriminator 52)) > [ 36.689496][ T197] ? do_vma_munmap (mm/mmap.c:1895) > [ 36.690125][ T197] ? __mutex_lock (arch/x86/include/asm/preempt.h:103 kernel/locking/mutex.c:618 kernel/locking/mutex.c:752) > [ 36.690779][ T197] ? __mutex_unlock_slowpath (arch/x86/include/asm/atomic64_64.h:101 include/linux/atomic/atomic-arch-fallback.h:4329 include/linux/atomic/atomic-long.h:1506 include/linux/atomic/atomic-instrumented.h:4481 kernel/locking/mutex.c:929) > [ 36.691585][ T197] __mmput (kernel/fork.c:1346) > [ 36.692143][ T197] exit_mm (kernel/exit.c:572) > [ 36.692699][ T197] do_exit (arch/x86/include/asm/jump_label.h:27 include/linux/jump_label.h:207 include/trace/events/sched.h:333 kernel/exit.c:930) > [ 36.693256][ T197] ? do_raw_spin_lock (arch/x86/include/asm/atomic.h:107 include/linux/atomic/atomic-arch-fallback.h:2170 include/linux/atomic/atomic-instrumented.h:1302 include/asm-generic/qspinlock.h:111 kernel/locking/spinlock_debug.c:116) > [ 36.693947][ T197] ? stack_not_used (kernel/exit.c:878) > [ 36.694605][ T197] ? _raw_spin_unlock_irq (arch/x86/include/asm/irqflags.h:42 arch/x86/include/asm/irqflags.h:97 include/linux/spinlock_api_smp.h:159 kernel/locking/spinlock.c:202) > [ 36.695304][ T197] do_group_exit (kernel/exit.c:1069) > [ 36.695908][ T197] __ia32_sys_exit_group (kernel/exit.c:1097) > [ 36.696561][ T197] ia32_sys_call (??:?) > [ 36.697142][ T197] do_int80_emulation (arch/x86/entry/common.c:165 arch/x86/entry/common.c:253) > [ 36.697852][ T197] asm_int80_emulation (arch/x86/include/asm/idtentry.h:626) > [ 36.698504][ T197] RIP: 0023:0xf7f03092 > [ 36.699039][ T197] Code: Unable to access opcode bytes at 0xf7f03068. > > Code starting with the faulting instruction > =========================================== > [ 36.699967][ T197] RSP: 002b:00000000ffcfddd8 EFLAGS: 00000296 ORIG_RAX: 00000000000000fc > [ 36.701055][ T197] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000003323d2f > [ 36.702120][ T197] RDX: 00000000ffcfde00 RSI: 0000000056633734 RDI: 00000000f7ef8000 > [ 36.703147][ T197] RBP: 00000000ffcfdef8 R08: 0000000000000000 R09: 0000000000000000 > [ 36.704165][ T197] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 > [ 36.705185][ T197] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 > [ 36.706281][ T197] > [ 36.706698][ T197] irq event stamp: 10051 > [ 36.707257][ T197] hardirqs last enabled at (10059): console_unlock (arch/x86/include/asm/irqflags.h:26 arch/x86/include/asm/irqflags.h:87 arch/x86/include/asm/irqflags.h:147 kernel/printk/printk.c:341 kernel/printk/printk.c:2801 kernel/printk/printk.c:3120) > [ 36.708455][ T197] hardirqs last disabled at (10066): console_unlock (kernel/printk/printk.c:339 kernel/printk/printk.c:2801 kernel/printk/printk.c:3120) > [ 36.709660][ T197] softirqs last enabled at (10006): handle_softirqs (arch/x86/include/asm/preempt.h:26 kernel/softirq.c:401 kernel/softirq.c:582) > [ 36.710805][ T197] softirqs last disabled at (9997): irq_exit_rcu (kernel/softirq.c:589 kernel/softirq.c:428 kernel/softirq.c:637 kernel/softirq.c:649) > [ 36.711941][ T197] ---[ end trace 0000000000000000 ]--- > > > The kernel config and materials to reproduce are available at: > https://download.01.org/0day-ci/archive/20240823/202408230938.43f55b4-lkp@intel.com > > > > -- > 0-DAY CI Kernel Test Service > https://github.com/intel/lkp-tests/wiki >