====================================== | [ 35.807141][ C1] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:129) | [ 35.807339][ C1] | [ 35.807420][ C1] | [ 35.807420][ C1] stack backtrace: [ 35.807983][ C1] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 35.808451][ C1] Call Trace: [ 35.808577][ C1] [ 35.808661][ C1] dump_stack_lvl (lib/dump_stack.c:117) [ 35.808833][ C1] print_irq_inversion_bug.part.0 (kernel/locking/lockdep.c:4024) [ 35.809058][ C1] ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94) [ 35.809434][ C1] ? __pfx_print_irq_inversion_bug.part.0 (kernel/locking/lockdep.c:4024) [ 35.809693][ C1] ? __pfx_usage_skip (kernel/locking/lockdep.c:2264) [ 35.809856][ C1] ? __pfx_usage_match (kernel/locking/lockdep.c:2256) [ 35.810019][ C1] ? arch_stack_walk (arch/x86/kernel/stacktrace.c:26) [ 35.810286][ C1] mark_lock_irq (kernel/locking/lockdep.c:4244) [ 35.810449][ C1] ? __pfx_mark_lock_irq (kernel/locking/lockdep.c:4207) [ 35.810610][ C1] ? __pfx_stack_trace_save (kernel/stacktrace.c:114) [ 35.810775][ C1] ? save_trace (kernel/locking/lockdep.c:586) [ 35.811051][ C1] mark_lock (kernel/locking/lockdep.c:4678) [ 35.811181][ C1] ? __pfx_stack_trace_save (kernel/stacktrace.c:114) [ 35.811344][ C1] mark_usage (kernel/locking/lockdep.c:4567) [ 35.811468][ C1] __lock_acquire (kernel/locking/lockdep.c:5091) [ 35.811632][ C1] ? __pfx_validate_chain (kernel/locking/lockdep.c:3825) [ 35.811798][ C1] ? __pfx_addrconf_rs_timer (net/ipv6/addrconf.c:4016) [ 35.811960][ C1] lock_acquire.part.0 (kernel/locking/lockdep.c:467 kernel/locking/lockdep.c:5756) [ 35.812122][ C1] ? addrconf_rs_timer (net/ipv6/addrconf.c:4023) [ 35.812289][ C1] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5719) [ 35.812458][ C1] ? trace_lock_acquire (./include/trace/events/lock.h:24 (discriminator 52)) [ 35.812622][ C1] ? addrconf_rs_timer (net/ipv6/addrconf.c:4023) [ 35.812788][ C1] ? lock_acquire (kernel/locking/lockdep.c:5727) [ 35.812955][ C1] ? addrconf_rs_timer (net/ipv6/addrconf.c:4023) [ 35.813232][ C1] _raw_write_lock (./include/linux/rwlock_api_smp.h:210 kernel/locking/spinlock.c:300) [ 35.813508][ C1] ? addrconf_rs_timer (net/ipv6/addrconf.c:4023) [ 35.813673][ C1] addrconf_rs_timer (net/ipv6/addrconf.c:4023) [ 35.813840][ C1] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5719) [ 35.814007][ C1] ? __pfx_addrconf_rs_timer (net/ipv6/addrconf.c:4016) [ 35.814282][ C1] ? call_timer_fn (./include/linux/lockdep.h:31 kernel/time/timer.c:1783) [ 35.814444][ C1] ? lock_acquire (kernel/locking/lockdep.c:5727) [ 35.814614][ C1] ? call_timer_fn (./include/linux/lockdep.h:31 kernel/time/timer.c:1783) [ 35.814776][ C1] ? __pfx_addrconf_rs_timer (net/ipv6/addrconf.c:4016) [ 35.815078][ C1] call_timer_fn (kernel/time/timer.c:1793) [ 35.815249][ C1] ? call_timer_fn (./include/linux/lockdep.h:31 kernel/time/timer.c:1783) [ 35.815412][ C1] ? call_timer_fn (./include/linux/lockdep.h:31 kernel/time/timer.c:1783) [ 35.815575][ C1] ? __pfx_call_timer_fn (kernel/time/timer.c:1770) [ 35.815760][ C1] ? mark_lock (kernel/locking/lockdep.c:4656 (discriminator 3)) [ 35.815888][ C1] __run_timers (kernel/time/timer.c:1845 kernel/time/timer.c:2418) [ 35.816050][ C1] ? __pfx_addrconf_rs_timer (net/ipv6/addrconf.c:4016) [ 35.816213][ C1] ? __pfx___run_timers (kernel/time/timer.c:2389) [ 35.816387][ C1] ? __lock_release (kernel/locking/lockdep.c:5430) [ 35.816552][ C1] ? do_raw_spin_lock (./arch/x86/include/asm/atomic.h:115 ./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) [ 35.816718][ C1] ? __pfx_do_raw_spin_lock (kernel/locking/spinlock_debug.c:114) [ 35.816880][ C1] ? lock_acquire (kernel/locking/lockdep.c:5727) [ 35.817047][ C1] ? timer_expire_remote (kernel/time/timer.c:2429 kernel/time/timer.c:2422 kernel/time/timer.c:2181) [ 35.817354][ C1] timer_expire_remote (kernel/time/timer.c:2430 kernel/time/timer.c:2422 kernel/time/timer.c:2181) [ 35.817517][ C1] tmigr_handle_remote_cpu (./arch/x86/include/asm/irqflags.h:26 ./arch/x86/include/asm/irqflags.h:67 ./arch/x86/include/asm/irqflags.h:127 kernel/time/timer_migration.c:925) [ 35.817679][ C1] ? __pfx_tmigr_handle_remote_cpu (kernel/time/timer_migration.c:869) [ 35.817889][ C1] tmigr_handle_remote_up (kernel/time/timer_migration.c:1003) [ 35.818161][ C1] tmigr_handle_remote (kernel/time/timer_migration.c:488 kernel/time/timer_migration.c:1061) [ 35.818325][ C1] ? __pfx_tmigr_handle_remote (kernel/time/timer_migration.c:1026) [ 35.818498][ C1] __do_softirq (kernel/softirq.c:554) [ 35.818664][ C1] irq_exit_rcu (kernel/softirq.c:428 kernel/softirq.c:633 kernel/softirq.c:645) [ 35.818903][ C1] sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1043 arch/x86/kernel/apic/apic.c:1043) [ 35.819065][ C1] [ 35.819152][ C1] [ 35.819241][ C1] asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) [ 35.819444][ C1] RIP: 0010:kasan_report (mm/kasan/report.c:609) [ 35.819632][ C1] Code: 24 28 4c 89 6c 24 30 e8 5d f5 ff ff 48 8d 7c 24 10 e8 73 fa ff ff 0f b6 d3 48 89 ee 48 8d 7c 24 08 e8 e3 fc ff ff ff 34 24 9d <48> 83 c4 70 44 89 e0 5b 5d 41 5c 41 5d 41 5e 41 5f c3 cc cc cc cc All code ======== 0: 24 28 and $0x28,%al 2: 4c 89 6c 24 30 mov %r13,0x30(%rsp) 7: e8 5d f5 ff ff call 0xfffffffffffff569 c: 48 8d 7c 24 10 lea 0x10(%rsp),%rdi 11: e8 73 fa ff ff call 0xfffffffffffffa89 16: 0f b6 d3 movzbl %bl,%edx 19: 48 89 ee mov %rbp,%rsi 1c: 48 8d 7c 24 08 lea 0x8(%rsp),%rdi 21: e8 e3 fc ff ff call 0xfffffffffffffd09 26: ff 34 24 push (%rsp) 29: 9d popf 2a:* 48 83 c4 70 add $0x70,%rsp <-- trapping instruction 2e: 44 89 e0 mov %r12d,%eax 31: 5b pop %rbx 32: 5d pop %rbp 33: 41 5c pop %r12 35: 41 5d pop %r13 37: 41 5e pop %r14 39: 41 5f pop %r15 3b: c3 ret 3c: cc int3 3d: cc int3 3e: cc int3 3f: cc int3 Code starting with the faulting instruction =========================================== 0: 48 83 c4 70 add $0x70,%rsp 4: 44 89 e0 mov %r12d,%eax 7: 5b pop %rbx 8: 5d pop %rbp 9: 41 5c pop %r12 b: 41 5d pop %r13 d: 41 5e pop %r14 f: 41 5f pop %r15 11: c3 ret 12: cc int3 13: cc int3 14: cc int3 15: cc int3 [ 35.820211][ C1] RSP: 0018:ffffc9000069f208 EFLAGS: 00000282 [ 35.820424][ C1] RAX: 00000000ffffffff RBX: ffff888007c5c9b8 RCX: ffffffff8963c764 [ 35.820675][ C1] RDX: 0000000000000000 RSI: 0000000000000008 RDI: ffff888007c5c9b8 [ 35.820916][ C1] RBP: 0000000000001f98 R08: ffff888007c5c064 R09: 000000000000005a [ 35.821279][ C1] R10: 0000000000000008 R11: 0000000000002000 R12: 0000000000000000 [ 35.821522][ C1] R13: 000000000000005a R14: dffffc0000000000 R15: ffff888005c7c5c0 [ 35.821764][ C1] ? memchr_inv (lib/string.c:856) [ 35.822056][ C1] ? __alloc_pages (mm/page_alloc.c:4541) [ 35.822217][ C1] memchr_inv (lib/string.c:856) [ 35.822338][ C1] check_bytes_and_report (mm/slub.c:1175) [ 35.822501][ C1] check_object (mm/slub.c:853 mm/slub.c:1353) [ 35.822666][ C1] alloc_debug_processing (mm/slub.c:1544 mm/slub.c:1554) [ 35.822827][ C1] ___slab_alloc (mm/slub.c:2537 mm/slub.c:3536) [ 35.822988][ C1] ? fs_reclaim_acquire (mm/page_alloc.c:3715 mm/page_alloc.c:3706) [ 35.823153][ C1] ? p9_fcall_init (net/9p/client.c:232) [ 35.823317][ C1] ? p9_fcall_init (net/9p/client.c:232) [ 35.823476][ C1] ? __kmalloc (mm/slub.c:3610 mm/slub.c:3663 mm/slub.c:3835 mm/slub.c:3965 mm/slub.c:3979) [ 35.823639][ C1] __kmalloc (mm/slub.c:3610 mm/slub.c:3663 mm/slub.c:3835 mm/slub.c:3965 mm/slub.c:3979) [ 35.823763][ C1] p9_fcall_init (net/9p/client.c:232) [ 35.823926][ C1] p9_tag_alloc (net/9p/client.c:297) [ 35.824202][ C1] ? __pfx_p9_tag_alloc (net/9p/client.c:277) [ 35.824363][ C1] ? mark_lock (kernel/locking/lockdep.c:4656 (discriminator 3)) [ 35.824485][ C1] ? __lock_acquire (kernel/locking/lockdep.c:5137) [ 35.824647][ C1] p9_client_prepare_req (net/9p/client.c:641) [ 35.824807][ C1] ? __pfx_p9_client_prepare_req (net/9p/client.c:625) [ 35.825005][ C1] ? find_held_lock (kernel/locking/lockdep.c:5244) [ 35.825166][ C1] p9_client_rpc (net/9p/client.c:688 (discriminator 4)) [ 35.825326][ C1] ? do_raw_spin_lock (./arch/x86/include/asm/atomic.h:115 ./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) [ 35.825494][ C1] ? __pfx_p9_client_rpc (net/9p/client.c:672) [ 35.825768][ C1] ? v9fs_fid_find (fs/9p/fid.c:114) [ 35.825931][ C1] ? do_raw_spin_unlock (./arch/x86/include/asm/atomic.h:23 ./include/linux/atomic/atomic-arch-fallback.h:457 ./include/linux/atomic/atomic-instrumented.h:33 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141) [ 35.826093][ C1] ? _raw_spin_unlock (./arch/x86/include/asm/preempt.h:94 ./include/linux/spinlock_api_smp.h:143 kernel/locking/spinlock.c:186) [ 35.826262][ C1] ? __pfx_v9fs_fid_find (fs/9p/fid.c:114) [ 35.826534][ C1] ? __pfx_make_vfsgid (fs/mnt_idmapping.c:110) [ 35.826694][ C1] ? v9fs_fid_add (fs/9p/fid.c:41) [ 35.826857][ C1] p9_client_readlink (net/9p/client.c:2238) [ 35.827027][ C1] v9fs_vfs_get_link_dotl (fs/9p/vfs_inode_dotl.c:822 fs/9p/vfs_inode_dotl.c:806) [ 35.827300][ C1] ? __pfx_v9fs_vfs_get_link_dotl (fs/9p/vfs_inode_dotl.c:809) [ 35.827505][ C1] ? __lookup_slow (fs/namei.c:1692) [ 35.827672][ C1] pick_link (fs/namei.c:1808) [ 35.827793][ C1] ? find_held_lock (kernel/locking/lockdep.c:5244) [ 35.828059][ C1] step_into (fs/namei.c:1874) [ 35.828181][ C1] ? __up_read (./arch/x86/include/asm/atomic64_64.h:79 ./include/linux/atomic/atomic-arch-fallback.h:2749 ./include/linux/atomic/atomic-long.h:184 ./include/linux/atomic/atomic-instrumented.h:3317 kernel/locking/rwsem.c:1347) [ 35.828346][ C1] ? __pfx_step_into (fs/namei.c:1839) [ 35.828512][ C1] ? walk_component (fs/namei.c:2005) [ 35.828674][ C1] link_path_walk.part.0.constprop.0 (fs/namei.c:2331) [ 35.828983][ C1] ? __pfx_link_path_walk.part.0.constprop.0 (fs/namei.c:2249) [ 35.829189][ C1] path_openat (fs/namei.c:3795) [ 35.829349][ C1] ? __pfx_path_openat (fs/namei.c:3781) [ 35.829573][ C1] ? __lock_acquire (kernel/locking/lockdep.c:5137) [ 35.829851][ C1] do_filp_open (fs/namei.c:3826) [ 35.830020][ C1] ? __pfx_do_filp_open (fs/namei.c:3820) [ 35.830184][ C1] ? find_held_lock (kernel/locking/lockdep.c:5244) [ 35.830347][ C1] ? __pfx_do_raw_spin_lock (kernel/locking/spinlock_debug.c:114) [ 35.830623][ C1] ? alloc_fd (fs/file.c:555 (discriminator 10)) [ 35.830746][ C1] ? do_raw_spin_unlock (./arch/x86/include/asm/atomic.h:23 ./include/linux/atomic/atomic-arch-fallback.h:457 ./include/linux/atomic/atomic-instrumented.h:33 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141) [ 35.830915][ C1] ? _raw_spin_unlock (./arch/x86/include/asm/preempt.h:94 ./include/linux/spinlock_api_smp.h:143 kernel/locking/spinlock.c:186) [ 35.831074][ C1] ? alloc_fd (fs/file.c:555 (discriminator 10)) [ 35.831197][ C1] do_sys_openat2 (fs/open.c:1406) [ 35.831469][ C1] ? vfs_fstatat (fs/stat.c:308) [ 35.831637][ C1] ? __pfx_do_sys_openat2 (fs/open.c:1392) [ 35.831796][ C1] ? __pfx___do_sys_newfstatat (fs/stat.c:464) [ 35.831963][ C1] __x64_sys_openat (fs/open.c:1432) [ 35.832236][ C1] ? __pfx___x64_sys_openat (fs/open.c:1432) [ 35.832403][ C1] ? __pfx_do_faccessat (fs/open.c:465) [ 35.832564][ C1] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) [ 35.832739][ C1] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:129) [ 35.833069][ C1] RIP: 0033:0x7f2c60bf50e8 [ 35.833235][ C1] Code: f9 41 89 f0 41 83 e2 40 75 30 89 f0 25 00 00 41 00 3d 00 00 41 00 74 22 44 89 c2 4c 89 ce bf 9c ff ff ff b8 01 01 00 00 0f 05 <48> 3d 00 f0 ff ff 77 30 c3 0f 1f 80 00 00 00 00 48 8d 44 24 08 c7 All code ======== 0: f9 stc 1: 41 89 f0 mov %esi,%r8d 4: 41 83 e2 40 and $0x40,%r10d 8: 75 30 jne 0x3a a: 89 f0 mov %esi,%eax c: 25 00 00 41 00 and $0x410000,%eax 11: 3d 00 00 41 00 cmp $0x410000,%eax 16: 74 22 je 0x3a 18: 44 89 c2 mov %r8d,%edx 1b: 4c 89 ce mov %r9,%rsi 1e: bf 9c ff ff ff mov $0xffffff9c,%edi 23: b8 01 01 00 00 mov $0x101,%eax 28: 0f 05 syscall 2a:* 48 3d 00 f0 ff ff cmp $0xfffffffffffff000,%rax <-- trapping instruction 30: 77 30 ja 0x62 32: c3 ret 33: 0f 1f 80 00 00 00 00 nopl 0x0(%rax) 3a: 48 8d 44 24 08 lea 0x8(%rsp),%rax 3f: c7 .byte 0xc7 Code starting with the faulting instruction =========================================== 0: 48 3d 00 f0 ff ff cmp $0xfffffffffffff000,%rax 6: 77 30 ja 0x38 8: c3 ret 9: 0f 1f 80 00 00 00 00 nopl 0x0(%rax) 10: 48 8d 44 24 08 lea 0x8(%rsp),%rax 15: c7 .byte 0xc7 [ 35.833824][ C1] RSP: 002b:00007ffed0468d58 EFLAGS: 00000287 ORIG_RAX: 0000000000000101 [ 35.834107][ C1] RAX: ffffffffffffffda RBX: 00007ffed0468fef RCX: 00007f2c60bf50e8 [ 35.834352][ C1] RDX: 0000000000080000 RSI: 00007ffed0468dd0 RDI: 00000000ffffff9c [ 35.834702][ C1] RBP: 00007ffed0468dc0 R08: 0000000000080000 R09: 00007ffed0468dd0 [ 35.834949][ C1] R10: 0000000000000000 R11: 0000000000000287 R12: 00007ffed0468dd7 Finger prints: dump_stack_lvl:mark_lock_irq:mark_lock:mark_usage