pkg/report: add some "inconsistent lock state" samples

5 files changed, 499 insertions, 0 deletions

diff --git a/pkg/report/testdata/linux/report/665 b/pkg/report/testdata/linux/report/665
new file mode 100644
index 000000000..37d13f56f
--- /dev/null
+++ b/pkg/report/testdata/linux/report/665
@@ -0,0 +1,97 @@
+TITLE: inconsistent lock state in _atomic_dec_and_lock
+
+[ 1336.868665][ T9712] ================================
+[ 1336.869886][ T9712] WARNING: inconsistent lock state
+[ 1336.871156][ T9712] 6.0.0-rc7-syzkaller-18095-gbbed346d5a96 #0 Not tainted
+[ 1336.872860][ T9712] --------------------------------
+[ 1336.873490][ T9714] ntfs3: loop4: Mark volume as dirty due to NTFS errors
+[ 1336.874094][ T9712] inconsistent {IN-HARDIRQ-W} -> {HARDIRQ-ON-W} usage.
+[ 1336.877457][ T9712] syz-executor.3/9712 [HC0[0]:SC0[0]:HE1:SE1] takes:
+[ 1336.879185][ T9712] ffff0000d10c2577 (&folio_wait_table[i]){?.-.}-{2:2}, at: _atomic_dec_and_lock+0xc8/0x130
+[ 1336.881722][ T9712] {IN-HARDIRQ-W} state was registered at:
+[ 1336.883125][ T9712]   lock_acquire+0x100/0x1f8
+[ 1336.884272][ T9712]   _raw_spin_lock_irqsave+0x6c/0xb4
+[ 1336.885620][ T9712]   folio_wake_bit+0x88/0x254
+[ 1336.886766][ T9712]   folio_unlock+0xb4/0x210
+[ 1336.887868][ T9712]   unlock_page+0x38/0xb8
+[ 1336.888929][ T9712]   end_buffer_async_read+0x2a8/0x5f8
+[ 1336.890277][ T9712]   end_buffer_async_read_io+0x118/0x12c
+[ 1336.891694][ T9712]   end_bio_bh_io_sync+0x5c/0xac
+[ 1336.892944][ T9712]   bio_endio+0x28c/0x2d8
+[ 1336.894030][ T9712]   blk_mq_end_request_batch+0x18c/0x5ec
+[ 1336.895397][ T9712]   nvme_pci_complete_batch+0x130/0x14c
+[ 1336.895719][ T9716] loop5: detected capacity change from 0 to 4096
+[ 1336.896791][ T9712]   nvme_irq+0x64/0xa8
+[ 1336.896802][ T9712]   __handle_irq_event_percpu+0xa8/0x294
+[ 1336.900793][ T9712]   handle_irq_event+0x4c/0xe8
+[ 1336.901983][ T9712]   handle_fasteoi_irq+0x1b4/0x324
+[ 1336.902059][ T9716] ntfs3: loop5: Different NTFS' sector size (1024) and media sector size (512)
+[ 1336.903236][ T9712]   generic_handle_domain_irq+0x4c/0x6c
+[ 1336.903247][ T9712]   gic_handle_irq+0x78/0x1b4
+[ 1336.906182][ T9717] loop1: detected capacity change from 0 to 4096
+[ 1336.906854][ T9712]   call_on_irq_stack+0x2c/0x54
+[ 1336.906866][ T9712]   do_interrupt_handler+0x7c/0xc0
+[ 1336.906873][ T9712]   el1_interrupt+0x34/0x68
+[ 1336.913339][ T9712]   el1h_64_irq_handler+0x18/0x24
+[ 1336.914550][ T9712]   el1h_64_irq+0x64/0x68
+[ 1336.915531][ T9712]   _raw_spin_unlock_irqrestore+0x58/0x8c
+[ 1336.916831][ T9712]   debug_object_activate+0xb0/0x300
+[ 1336.918177][ T9712]   call_rcu+0x40/0x484
+[ 1336.919171][ T9712]   tlb_flush_mmu_free+0x298/0x3bc
+[ 1336.920433][ T9712]   tlb_flush_mmu+0x274/0x2f0
+[ 1336.921629][ T9712]   tlb_finish_mmu+0x64/0xe4
+[ 1336.922718][ T9712]   exit_mmap+0xe4/0x2e4
+[ 1336.923765][ T9712]   __mmput+0x90/0x204
+[ 1336.924796][ T9712]   mmput+0x64/0xa0
+[ 1336.925734][ T9712]   free_bprm+0xac/0x19c
+[ 1336.926851][ T9712]   kernel_execve+0x4ec/0x540
+[ 1336.928029][ T9712]   call_usermodehelper_exec_async+0x10c/0x214
+[ 1336.929586][ T9712]   ret_from_fork+0x10/0x20
+[ 1336.930736][ T9712] irq event stamp: 8353
+[ 1336.931785][ T9712] hardirqs last  enabled at (8353): [<ffff800008161dac>] finish_lock_switch+0x94/0xe8
+[ 1336.934167][ T9712] hardirqs last disabled at (8352): [<ffff80000bfc0a34>] __schedule+0x84/0x5a0
+[ 1336.936452][ T9712] softirqs last  enabled at (7378): [<ffff8000080102e4>] _stext+0x2e4/0x37c
+[ 1336.938648][ T9712] softirqs last disabled at (7245): [<ffff800008017c14>] ____do_softirq+0x14/0x20
+[ 1336.940993][ T9712] 
+[ 1336.940993][ T9712] other info that might help us debug this:
+[ 1336.943073][ T9712]  Possible unsafe locking scenario:
+[ 1336.943073][ T9712] 
+[ 1336.944957][ T9712]        CPU0
+[ 1336.945828][ T9712]        ----
+[ 1336.946627][ T9712]   lock(&folio_wait_table[i]);
+[ 1336.947864][ T9712]   <Interrupt>
+[ 1336.948763][ T9712]     lock(&folio_wait_table[i]);
+[ 1336.950014][ T9712] 
+[ 1336.950014][ T9712]  *** DEADLOCK ***
+[ 1336.950014][ T9712] 
+[ 1336.952066][ T9712] 1 lock held by syz-executor.3/9712:
+[ 1336.953400][ T9712]  #0: ffff0000d1a700e0 (&type->s_umount_key#46/1){+.+.}-{3:3}, at: alloc_super+0xf8/0x430
+[ 1336.955899][ T9712] 
+[ 1336.955899][ T9712] stack backtrace:
+[ 1336.957367][ T9712] CPU: 1 PID: 9712 Comm: syz-executor.3 Not tainted 6.0.0-rc7-syzkaller-18095-gbbed346d5a96 #0
+[ 1336.959932][ T9712] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/30/2022
+[ 1336.962530][ T9712] Call trace:
+[ 1336.963329][ T9712]  dump_backtrace+0x1c4/0x1f0
+[ 1336.964525][ T9712]  show_stack+0x2c/0x54
+[ 1336.965522][ T9712]  dump_stack_lvl+0x104/0x16c
+[ 1336.966763][ T9712]  dump_stack+0x1c/0x58
+[ 1336.967790][ T9712]  print_usage_bug+0x39c/0x3cc
+[ 1336.968966][ T9712]  mark_lock_irq+0x4a8/0x4b4
+[ 1336.970152][ T9712]  mark_lock+0x154/0x1b4
+[ 1336.971226][ T9712]  __lock_acquire+0x5f8/0x30a4
+[ 1336.972429][ T9712]  lock_acquire+0x100/0x1f8
+[ 1336.973530][ T9712]  _raw_spin_lock+0x54/0x6c
+[ 1336.974643][ T9712]  _atomic_dec_and_lock+0xc8/0x130
+[ 1336.975938][ T9712]  iput+0x50/0x324
+[ 1336.976859][ T9712]  ntfs_fill_super+0x1254/0x14a4
+[ 1336.978134][ T9712]  get_tree_bdev+0x1e8/0x2a0
+[ 1336.979340][ T9712]  ntfs_fs_get_tree+0x28/0x38
+[ 1336.980531][ T9712]  vfs_get_tree+0x40/0x140
+[ 1336.981668][ T9712]  do_new_mount+0x1dc/0x4e4
+[ 1336.982779][ T9712]  path_mount+0x358/0x914
+[ 1336.983850][ T9712]  __arm64_sys_mount+0x2c4/0x3c4
+[ 1336.985070][ T9712]  el0_svc_common+0x138/0x220
+[ 1336.986208][ T9712]  do_el0_svc+0x48/0x164
+[ 1336.987271][ T9712]  el0_svc+0x58/0x150
+[ 1336.988276][ T9712]  el0t_64_sync_handler+0x84/0xf0
+[ 1336.989559][ T9712]  el0t_64_sync+0x18c/0x190
diff --git a/pkg/report/testdata/linux/report/666 b/pkg/report/testdata/linux/report/666
new file mode 100644
index 000000000..b82c0da8c
--- /dev/null
+++ b/pkg/report/testdata/linux/report/666
@@ -0,0 +1,68 @@
+TITLE: inconsistent lock state in io_dismantle_req
+
+[   32.237087][    C0] ================================
+[   32.242183][    C0] WARNING: inconsistent lock state
+[   32.247268][    C0] 4.15.0-syzkaller #0 Not tainted
+[   32.252346][    C0] --------------------------------
+[   32.257429][    C0] inconsistent {HARDIRQ-ON-W} -> {IN-HARDIRQ-W} usage.
+[   32.264296][    C0] io_wq_manager/4648 [HC1[1]:SC0[0]:HE0:SE1] takes:
+[   32.270851][    C0] ffff8801e85ebf20 (&(&fs->lock)->rlock){?.+.}, at: io_dismantle_req+0x411/0xae0
+[   32.280025][    C0] {HARDIRQ-ON-W} state was registered at:
+[   32.285719][    C0]   lock_acquire+0x1da/0xb70
+[   32.290293][    C0]   _raw_spin_lock+0x2b/0x40
+[   32.308008][    C0]   set_fs_pwd+0x89/0x1e0
+[   32.312309][    C0]   ksys_chdir+0x131/0x1f0
+[   32.316696][    C0]   devtmpfsd+0x1b1/0x4c0
+[   32.320999][    C0]   kthread+0x450/0x6e0
+[   32.325139][    C0]   ret_from_fork+0x3f/0x50
+[   32.329628][    C0]   0xffffffffffffffff
+[   32.333676][    C0] irq event stamp: 60
+[   32.337631][    C0] hardirqs last  enabled at (59): [<ffffffff8100f908>] _raw_spin_unlock_irq+0x28/0x80
+[   32.347167][    C0] hardirqs last disabled at (60): [<ffffffff8101394e>] trace_hardirqs_off_thunk+0x1a/0x1c
+[   32.357038][    C0] softirqs last  enabled at (0): [<ffffffff81439aaa>] copy_process.part.0+0x176a/0x6820
+[   32.357054][    C0] softirqs last disabled at (0): [<0000000000000000>] 0x0
+[   32.387108][    C0] 
+[   32.387108][    C0] other info that might help us debug this:
+[   32.395209][    C0]  Possible unsafe locking scenario:
+[   32.395209][    C0] 
+[   32.402633][    C0]        CPU0
+[   32.405887][    C0]        ----
+[   32.409141][    C0]   lock(&(&fs->lock)->rlock);
+[   32.413877][    C0]   <Interrupt>
+[   32.417304][    C0]     lock(&(&fs->lock)->rlock);
+[   32.422209][    C0] 
+[   32.422209][    C0]  *** DEADLOCK ***
+[   32.422209][    C0] 
+[   32.430332][    C0] no locks held by io_wq_manager/4648.
+[   32.430335][    C0] 
+[   32.430335][    C0] stack backtrace:
+[   32.430399][    C0] CPU: 0 PID: 4648 Comm: io_wq_manager Not tainted 4.15.0-syzkaller #0
+[   32.463247][    C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
+[   32.473275][    C0] Call Trace:
+[   32.476531][    C0]  <IRQ>
+[   32.479364][    C0]  [<ffffffff84aaaf9d>] dump_stack+0x175/0x1dd
+[   32.485622][    C0]  [<ffffffff848ca8d9>] print_usage_bug.part.0+0x34a/0x359
+[   32.492788][    C0]  [<ffffffff848ca8f9>] mark_lock.cold+0x11/0x92
+[   32.499097][    C0]  [<ffffffff8160c7d1>] __lock_acquire+0x13d1/0x5ef0
+[   32.532487][    C0]  [<ffffffff81612cca>] lock_acquire+0x1da/0xb70
+[   32.566303][    C0]  [<ffffffff8100f26b>] _raw_spin_lock+0x2b/0x40
+[   32.593033][    C0]  [<ffffffff81d719c1>] io_dismantle_req+0x411/0xae0
+[   32.599686][    C0]  [<ffffffff81d720a9>] __io_free_req+0x19/0x2b0
+[   32.605989][    C0]  [<ffffffff81d723b8>] io_put_req+0x78/0xb0
+[   32.611950][    C0]  [<ffffffff81d7b8e5>] io_link_timeout_fn+0x375/0x510
+[   32.618801][    C0]  [<ffffffff81697a1e>] __hrtimer_run_queues+0x45e/0xe40
+[   32.638842][    C0]  [<ffffffff8169ab1d>] hrtimer_interrupt+0x30d/0x900
+[   32.638858][    C0]  [<ffffffff84c04ba9>] smp_apic_timer_interrupt+0x159/0x580
+[   32.638877][    C0]  [<ffffffff84c01a3f>] apic_timer_interrupt+0x9f/0xb0
+[   32.672924][    C0]  </IRQ>
+[   32.675841][    C0] RIP: 0010:_raw_spin_unlock_irq+0x54/0x80
+[   32.681613][    C0] RSP: 0018:ffff8801e893bd68 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff12
+[   32.690009][    C0] RAX: 1ffffffff0bed873 RBX: 00000000ffffff83 RCX: 0000000000000000
+[   32.697953][    C0] RDX: dffffc0000000000 RSI: 0000000000000006 RDI: ffff8801e85c8a94
+[   32.705903][    C0] RBP: ffff8801e893bd70 R08: 0000000000000000 R09: 0000000000000000
+[   32.705910][    C0] R10: 0000000000000000 R11: 0000000000000000 R12: ffff8801e8f40d00
+[   32.705925][    C0] R13: ffff8801e8f40880 R14: ffff8801e8f40d00 R15: ffff8801e85c8080
+[   32.750035][    C0]  [<ffffffff81d7bae6>] __io_req_task_cancel+0x66/0x180
+[   32.756959][    C0]  [<ffffffff81d89cfb>] io_async_task_func+0x22b/0x950
+[   32.763798][    C0]  [<ffffffff814bcb64>] task_work_run+0xf4/0x1b0
+[   32.770188][    C0]  [<ffffffff81d98d1e>] io_wq_manager+0x2be/0x980
diff --git a/pkg/report/testdata/linux/report/667 b/pkg/report/testdata/linux/report/667
new file mode 100644
index 000000000..1eaf62a59
--- /dev/null
+++ b/pkg/report/testdata/linux/report/667
@@ -0,0 +1,81 @@
+TITLE: inconsistent lock state in __io_req_aux_free
+
+[   28.141875] ================================
+[   28.146298] WARNING: inconsistent lock state
+[   28.150699] 4.15.0-syzkaller #0 Not tainted
+[   28.154995] --------------------------------
+[   28.159376] inconsistent {HARDIRQ-ON-W} -> {IN-HARDIRQ-W} usage.
+[   28.165515] syz-executor644/3715 [HC1[1]:SC0[0]:HE0:SE1] takes:
+[   28.171568] ffff8801da554020 (&(&fs->lock)->rlock){?.+.}, at: __io_req_aux_free+0x402/0xf30
+[   28.180068] {HARDIRQ-ON-W} state was registered at:
+[   28.185074]   lock_acquire+0x18f/0x770
+[   28.188967]   _raw_spin_lock+0x2b/0x40
+[   28.192844]   set_fs_pwd+0x89/0x1e0
+[   28.196557]   ksys_chdir+0x131/0x1f0
+[   28.200342]   devtmpfsd+0x1b1/0x4c0
+[   28.203950]   kthread+0x450/0x6e0
+[   28.207403]   ret_from_fork+0x3f/0x50
+[   28.211178]   0xffffffffffffffff
+[   28.214515] irq event stamp: 93704
+[   28.218055] hardirqs last  enabled at (93703): [<ffffffff8100f338>] _raw_spin_unlock_irq+0x28/0x40
+[   28.227400] hardirqs last disabled at (93704): [<ffffffff8101153e>] trace_hardirqs_off_thunk+0x1a/0x1c
+[   28.236940] softirqs last  enabled at (93576): [<ffffffff8451cd12>] unix_create1+0x432/0x500
+[   28.245525] softirqs last disabled at (93574): [<ffffffff8451cc58>] unix_create1+0x378/0x500
+[   28.254089] 
+[   28.254089] other info that might help us debug this:
+[   28.260831]  Possible unsafe locking scenario:
+[   28.260831] 
+[   28.269054]        CPU0
+[   28.271628]        ----
+[   28.274197]   lock(&(&fs->lock)->rlock);
+[   28.278247]   <Interrupt>
+[   28.280988]     lock(&(&fs->lock)->rlock);
+[   28.285197] 
+[   28.285197]  *** DEADLOCK ***
+[   28.285197] 
+[   28.291245] 1 lock held by syz-executor644/3715:
+[   28.295972]  #0: ffff8801ee8775a0 (&ctx->uring_lock){+.+.}, at: SyS_io_uring_enter+0x8bf/0x17a0
+[   28.304819] 
+[   28.304819] stack backtrace:
+[   28.309301] CPU: 0 PID: 3715 Comm: syz-executor644 Not tainted 4.15.0-syzkaller #0
+[   28.317094] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
+[   28.326427] Call Trace:
+[   28.328990]  <IRQ>
+[   28.331128]  [<ffffffff84a13737>] dump_stack+0xd8/0x147
+[   28.336481]  [<ffffffff848334b3>] print_usage_bug.part.0+0x34a/0x359
+[   28.342970]  [<ffffffff848334e9>] mark_lock.cold+0x27/0x92
+[   28.348670]  [<ffffffff815dfba7>] __lock_acquire+0x1477/0x5ed0
+[   28.384342]  [<ffffffff815e5daf>] lock_acquire+0x18f/0x770
+[   28.420340]  [<ffffffff8100edab>] _raw_spin_lock+0x2b/0x40
+[   28.432194]  [<ffffffff81d18322>] __io_req_aux_free+0x402/0xf30
+[   28.438247]  [<ffffffff81d18e71>] __io_free_req+0x21/0x5b0
+[   28.449825]  [<ffffffff81d194ba>] io_free_req+0xba/0x1e0
+[   28.474067]  [<ffffffff81d19650>] io_put_req+0x70/0xa0
+[   28.479341]  [<ffffffff81d1c467>] io_link_timeout_fn+0x387/0x530
+[   28.485506]  [<ffffffff81673bae>] __hrtimer_run_queues+0x45e/0xe40
+[   28.504953]  [<ffffffff8167642d>] hrtimer_interrupt+0x30d/0x900
+[   28.511020]  [<ffffffff84c04a69>] smp_apic_timer_interrupt+0x159/0x580
+[   28.517691]  [<ffffffff84c019a3>] apic_timer_interrupt+0x93/0xa0
+[   28.523845]  </IRQ>
+[   28.526076] RIP: 0010:_raw_spin_unlock_irq+0x2f/0x40
+[   28.531172] RSP: 0018:ffff8801f3bff940 EFLAGS: 00000282 ORIG_RAX: ffffffffffffff12
+[   28.538863] RAX: 0000000000000007 RBX: 0000000000000000 RCX: 0000000000000006
+[   28.546116] RDX: 0000000000000000 RSI: ffff8801f3d88b38 RDI: ffff8801f3d88b34
+[   28.553427] RBP: ffff8801f3bff948 R08: ffff8801f3d88180 R09: 0000000000000000
+[   28.560695] R10: ffff8801f3d88b58 R11: 0000000000000000 R12: ffff8801ee877640
+[   28.567952] R13: ffff8801ee877640 R14: 0000000000000001 R15: ffff8801efb05080
+[   28.575331]  [<ffffffff81d1982c>] io_queue_linked_timeout+0x1ac/0x210
+[   28.581919]  [<ffffffff81d19c42>] io_queue_async_work+0x3b2/0xbb0
+[   28.588153]  [<ffffffff81d2e662>] __io_queue_sqe+0x522/0x1160
+[   28.618773]  [<ffffffff81d2f648>] io_queue_sqe+0x3a8/0xd80
+[   28.624398]  [<ffffffff81d30f94>] io_submit_sqes+0xf74/0x27f0
+[   28.661561]  [<ffffffff81d35153>] SyS_io_uring_enter+0x8d3/0x17a0
+[   28.737974]  [<ffffffff8101642f>] do_syscall_64+0x1ff/0x310
+[   28.743675]  [<ffffffff84c00076>] entry_SYSCALL_64_after_hwframe+0x42/0xb7
+[   28.750668] RIP: 0033:0x44bb09
+[   28.753834] RSP: 002b:00007ffce56c6c58 EFLAGS: 00000212 ORIG_RAX: 00000000000001aa
+[   28.761521] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 000000000044bb09
+[   28.768773] RDX: 0000000000000000 RSI: 00000000000045f5 RDI: 0000000000000003
+[   28.776025] RBP: 0000000000000003 R08: 0000000000000000 R09: 0000000000000000
+[   28.783278] R10: 0000000000000000 R11: 0000000000000212 R12: 00007ffce56c6c90
+[   28.790530] R13: 00007ffce56
diff --git a/pkg/report/testdata/linux/report/668 b/pkg/report/testdata/linux/report/668
new file mode 100644
index 000000000..b5ff70dff
--- /dev/null
+++ b/pkg/report/testdata/linux/report/668
@@ -0,0 +1,79 @@
+TITLE: inconsistent lock state in io_file_data_ref_zero
+
+[   21.087943][    C0] ================================
+[   21.093011][    C0] WARNING: inconsistent lock state
+[   21.098078][    C0] 5.10.0-syzkaller #0 Not tainted
+[   21.103056][    C0] --------------------------------
+[   21.108120][    C0] inconsistent {SOFTIRQ-ON-W} -> {IN-SOFTIRQ-W} usage.
+[   21.114931][    C0] swapper/0/0 [HC0[0]:SC1[1]:HE1:SE0] takes:
+[   21.120870][    C0] ffff888114bf86a8 (&file_data->lock){+.?.}-{2:2}, at: io_file_data_ref_zero+0x79/0x480
+[   21.130557][    C0] {SOFTIRQ-ON-W} state was registered at:
+[   21.136236][    C0]   lock_acquire+0x2a6/0x770
+[   21.140786][    C0]   _raw_spin_lock+0x2b/0x40
+[   21.145339][    C0]   __do_sys_io_uring_register+0x3684/0x4460
+[   21.151276][    C0]   __x64_sys_io_uring_register+0x97/0xf0
+[   21.156952][    C0]   do_syscall_64+0x32/0x50
+[   21.161418][    C0]   entry_SYSCALL_64_after_hwframe+0x44/0xa9
+[   21.167353][    C0] irq event stamp: 73760
+[   21.171556][    C0] hardirqs last  enabled at (73760): [<ffffffff84736204>] sysvec_call_function_single+0x64/0xb0
+[   21.181920][    C0] hardirqs last disabled at (73759): [<ffffffff847361b0>] sysvec_call_function_single+0x10/0xb0
+[   21.192289][    C0] softirqs last  enabled at (73678): [<ffffffff813dc4bc>] irq_enter_rcu+0xcc/0xe0
+[   21.201439][    C0] softirqs last disabled at (73679): [<ffffffff84800ebf>] asm_call_irq_on_stack+0xf/0x20
+[   21.211191][    C0] 
+[   21.211191][    C0] other info that might help us debug this:
+[   21.219207][    C0]  Possible unsafe locking scenario:
+[   21.219207][    C0] 
+[   21.226616][    C0]        CPU0
+[   21.229856][    C0]        ----
+[   21.233099][    C0]   lock(&file_data->lock);
+[   21.237561][    C0]   <Interrupt>
+[   21.240977][    C0]     lock(&file_data->lock);
+[   21.245612][    C0] 
+[   21.245612][    C0]  *** DEADLOCK ***
+[   21.245612][    C0] 
+[   21.253721][    C0] 2 locks held by swapper/0/0:
+[   21.258439][    C0]  #0: ffffffff86187a40 (rcu_callback){....}-{0:0}, at: rcu_core+0x4ad/0xf30
+[   21.267169][    C0]  #1: ffffffff86187b60 (rcu_read_lock){....}-{1:2}, at: percpu_ref_put_many.constprop.0+0x0/0x270
+[   21.277811][    C0] 
+[   21.277811][    C0] stack backtrace:
+[   21.283663][    C0] CPU: 0 PID: 0 Comm: swapper/0 Not tainted 5.10.0-syzkaller #0
+[   21.291247][    C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
+[   21.301259][    C0] Call Trace:
+[   21.304500][    C0]  <IRQ>
+[   21.307318][    C0]  dump_stack+0x111/0x171
+[   21.311606][    C0]  print_usage_bug.part.0+0x349/0x358
+[   21.323142][    C0]  mark_lock.cold+0x3c/0x88
+[   21.361361][    C0]  __lock_acquire+0x1270/0x5bf0
+[   21.372112][    C0]  lock_acquire+0x2a6/0x770
+[   21.400711][    C0]  _raw_spin_lock+0x2b/0x40
+[   21.410500][    C0]  io_file_data_ref_zero+0x79/0x480
+[   21.415659][    C0]  percpu_ref_put_many.constprop.0+0x231/0x270
+[   21.421773][    C0]  percpu_ref_switch_to_atomic_rcu+0x291/0x470
+[   21.427888][    C0]  rcu_core+0x51a/0xf30
+[   21.437682][    C0]  rcu_core_si+0x9/0x10
+[   21.441798][    C0]  __do_softirq+0x1b9/0x932
+[   21.446260][    C0]  asm_call_irq_on_stack+0xf/0x20
+[   21.451239][    C0]  </IRQ>
+[   21.454144][    C0]  do_softirq_own_stack+0x86/0xa0
+[   21.459126][    C0]  irq_exit_rcu+0x127/0x1c0
+[   21.463588][    C0]  sysvec_apic_timer_interrupt+0x54/0xb0
+[   21.469176][    C0]  asm_sysvec_apic_timer_interrupt+0x12/0x20
+[   21.475115][    C0] RIP: 0010:acpi_idle_do_entry+0x1d7/0x270
+[   21.480880][    C0] Code: 4f 8b f6 fc 84 db 75 a9 e8 66 93 f6 fc e8 d1 7a fc fc e9 0c 00 00 00 e8 57 93 f6 fc 0f 00 2d 30 9d 77 00 e8 4b 93 f6 fc fb f4 <9c> 5b 81 e3 00 02 00 00 fa 31 ff 48 89 de e8 76 8b f6 fc 48 85 db
+[   21.500445][    C0] RSP: 0018:ffffffff85c07cd0 EFLAGS: 00000293
+[   21.506470][    C0] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 1ffffffff0d758f9
+[   21.514401][    C0] RDX: ffffffff85c35d00 RSI: ffffffff8474f315 RDI: ffffffff8474f2ff
+[   21.522333][    C0] RBP: ffffffff85c07ce0 R08: 0000000000000001 R09: 0000000000000001
+[   21.530265][    C0] R10: 0000000000000000 R11: 0000000000000001 R12: ffff888102572864
+[   21.538197][    C0] R13: ffff888102572800 R14: ffff888102572864 R15: ffff8881056bd004
+[   21.556450][    C0]  acpi_idle_enter+0x35f/0x4f0
+[   21.561172][    C0]  cpuidle_enter_state+0x1c8/0xce0
+[   21.577075][    C0]  cpuidle_enter+0x4f/0xa0
+[   21.581454][    C0]  do_idle+0x479/0x630
+[   21.595291][    C0]  cpu_startup_entry+0x1b/0x20
+[   21.600012][    C0]  rest_init+0x25a/0x3a6
+[   21.610423][    C0]  arch_call_rest_init+0xe/0x1b
+[   21.615232][    C0]  start_kernel+0x477/0x497
+[   21.619697][    C0]  x86_64_start_reservations+0x29/0x2b
+[   21.625113][    C0]  x86_64_start_kernel+0x77/0x7b
+[   21.630009][    C0]  secondary_startup_64_no_verify+0xb0/0xbb
diff --git a/pkg/report/testdata/linux/report/669 b/pkg/report/testdata/linux/report/669
new file mode 100644
index 000000000..cd24cad68
--- /dev/null
+++ b/pkg/report/testdata/linux/report/669
@@ -0,0 +1,174 @@
+TITLE: inconsistent lock state in kmem_cache_alloc_node
+
+[  860.112634][    C1] ================================
+[  860.117823][    C1] WARNING: inconsistent lock state
+[  860.122922][    C1] 5.15.0-rc2-syzkaller #0 Not tainted
+[  860.128290][    C1] --------------------------------
+[  860.133390][    C1] inconsistent {SOFTIRQ-ON-W} -> {IN-SOFTIRQ-W} usage.
+[  860.140237][    C1] ksoftirqd/1/19 [HC0[0]:SC1[3]:HE1:SE0] takes:
+[  860.146481][    C1] ffffffff8c9dd960 (fs_reclaim){+.?.}-{0:0}, at: kmem_cache_alloc_node+0x46/0x340
+[  860.155717][    C1] {SOFTIRQ-ON-W} state was registered at:
+[  860.161435][    C1]   lock_acquire+0x19f/0x4d0
+[  860.166029][    C1]   fs_reclaim_acquire+0x77/0x110
+[  860.171066][    C1]   kmem_cache_alloc_trace+0x42/0x310
+[  860.176455][    C1]   wq_numa_init+0x122/0x49f
+[  860.176550][    C1]   workqueue_init+0x18/0x7c7
+[  860.176568][    C1]   kernel_init_freeable+0x408/0x5c6
+[  860.176585][    C1]   kernel_init+0x19/0x2a0
+[  860.176602][    C1]   ret_from_fork+0x1f/0x30
+[  860.176626][    C1] irq event stamp: 4852124
+[  860.176634][    C1] hardirqs last  enabled at (4852124): [<ffffffff81cdd884>] kasan_quarantine_put+0xd4/0x230
+[  860.176657][    C1] hardirqs last disabled at (4852123): [<ffffffff81cdd7e9>] kasan_quarantine_put+0x39/0x230
+[  860.176680][    C1] softirqs last  enabled at (4851912): [<ffffffff814f6851>] run_ksoftirqd+0xc1/0x120
+[  860.176746][    C1] softirqs last disabled at (4851919): [<ffffffff814f6851>] run_ksoftirqd+0xc1/0x120
+[  860.176766][    C1] 
+[  860.176766][    C1] other info that might help us debug this:
+[  860.176772][    C1]  Possible unsafe locking scenario:
+[  860.176772][    C1] 
+[  860.176777][    C1]        CPU0
+[  860.176780][    C1]        ----
+[  860.176783][    C1]   lock(fs_reclaim);
+[  860.176797][    C1]   <Interrupt>
+[  860.176801][    C1]     lock(fs_reclaim);
+[  860.176811][    C1] 
+[  860.176811][    C1]  *** DEADLOCK ***
+[  860.176811][    C1] 
+[  860.176815][    C1] 6 locks held by ksoftirqd/1/19:
+[  860.176825][    C1]  #0: ffffffff8c91c200 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0x9/0x30
+[  860.176901][    C1]  #1: ffffffff8c91c200 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0x9/0x30
+[  860.176941][    C1]  #2: ffffffff8c91c200 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0x5/0x30
+[  860.177006][    C1]  #3: ffffffff8c91c200 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0x5/0x30
+[  860.177047][    C1]  #4: ffff88806f912620 (k-slock-AF_INET6/1){+.-.}-{2:2}, at: tcp_v6_rcv+0x3317/0x4470
+[  860.177095][    C1]  #5: ffff888074db2fa0 (slock-AF_INET6){+.-.}-{2:2}, at: mptcp_incoming_options+0x3a8/0x1fb0
+[  860.177167][    C1] 
+[  860.177167][    C1] stack backtrace:
+[  860.177174][    C1] CPU: 1 PID: 19 Comm: ksoftirqd/1 Not tainted 5.15.0-rc2-syzkaller #0
+[  860.177192][    C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
+[  860.177202][    C1] Call Trace:
+[  860.177210][    C1]  dump_stack_lvl+0x1dc/0x2d8
+[  860.177269][    C1]  print_usage_bug+0xa6d/0xea0
+[  860.177323][    C1]  mark_lock+0x168c/0x1e00
+[  860.177415][    C1]  __lock_acquire+0xc36/0x2b00
+[  860.177497][    C1]  lock_acquire+0x19f/0x4d0
+[  860.177650][    C1]  fs_reclaim_acquire+0x77/0x110
+[  860.177716][    C1]  kmem_cache_alloc_node+0x46/0x340
+[  860.177753][    C1]  __alloc_skb+0xd8/0x580
+[  860.177770][    C1]  sk_stream_alloc_skb+0x1f4/0xb40
+[  860.177790][    C1]  tcp_build_frag+0x268/0x1010
+[  860.177911][    C1]  mptcp_sendmsg_frag+0x6a1/0x1570
+[  860.177972][    C1]  __mptcp_subflow_push_pending+0x289/0xa10
+[  860.178017][    C1]  mptcp_incoming_options+0x497/0x1fb0
+[  860.178121][    C1]  tcp_data_queue+0xf4/0x8430
+[  860.178272][    C1]  tcp_rcv_established+0x9f7/0x22b0
+[  860.178332][    C1]  tcp_v6_do_rcv+0x4a9/0x12d0
+[  860.178354][    C1]  tcp_v6_rcv+0x36dc/0x4470
+[  860.178430][    C1]  ip6_protocol_deliver_rcu+0x9a5/0x1310
+[  860.178472][    C1]  ip6_input+0x10b/0x190
+[  860.178488][    C1]  ip_sabotage_in+0x1a1/0x220
+[  860.178520][    C1]  nf_hook_slow+0xb2/0x1f0
+[  860.178539][    C1]  nf_hook+0x235/0x3a0
+[  860.178621][    C1]  ipv6_rcv+0x87/0xd0
+[  860.178638][    C1]  __netif_receive_skb+0x1d1/0x500
+[  860.178711][    C1]  netif_receive_skb_internal+0x108/0x360
+[  860.178781][    C1]  netif_receive_skb+0x19/0x30
+[  860.178796][    C1]  br_handle_frame_finish+0x139b/0x1940
+[  860.178945][    C1]  br_nf_hook_thresh+0x3db/0x4f0
+[  860.179004][    C1]  br_nf_pre_routing_finish_ipv6+0x942/0xbc0
+[  860.179042][    C1]  br_nf_pre_routing_ipv6+0x294/0x340
+[  860.179074][    C1]  br_handle_frame+0x875/0x1050
+[  860.179163][    C1]  __netif_receive_skb_core+0x14d8/0x3d10
+[  860.179255][    C1]  __netif_receive_skb+0x120/0x500
+[  860.179350][    C1]  process_backlog+0x518/0x9a0
+[  860.179436][    C1]  __napi_poll+0xba/0x4f0
+[  860.179453][    C1]  net_rx_action+0x61c/0xf30
+[  860.179512][    C1]  __do_softirq+0x392/0x7a3
+[  860.179563][    C1]  run_ksoftirqd+0xc1/0x120
+[  860.179620][    C1]  smpboot_thread_fn+0x533/0x9d0
+[  860.179691][    C1]  kthread+0x453/0x480
+[  860.179734][    C1]  ret_from_fork+0x1f/0x30
+[  860.112634][    C1] ================================
+[  860.117823][    C1] WARNING: inconsistent lock state
+[  860.122922][    C1] 5.15.0-rc2-syzkaller #0 Not tainted
+[  860.128290][    C1] --------------------------------
+[  860.133390][    C1] inconsistent {SOFTIRQ-ON-W} -> {IN-SOFTIRQ-W} usage.
+[  860.140237][    C1] ksoftirqd/1/19 [HC0[0]:SC1[3]:HE1:SE0] takes:
+[  860.146481][    C1] ffffffff8c9dd960 (fs_reclaim){+.?.}-{0:0}, at: kmem_cache_alloc_node+0x46/0x340
+[  860.155717][    C1] {SOFTIRQ-ON-W} state was registered at:
+[  860.161435][    C1]   lock_acquire+0x19f/0x4d0
+[  860.166029][    C1]   fs_reclaim_acquire+0x77/0x110
+[  860.171066][    C1]   kmem_cache_alloc_trace+0x42/0x310
+[  860.176455][    C1]   wq_numa_init+0x122/0x49f
+[  860.176550][    C1]   workqueue_init+0x18/0x7c7
+[  860.176568][    C1]   kernel_init_freeable+0x408/0x5c6
+[  860.176585][    C1]   kernel_init+0x19/0x2a0
+[  860.176602][    C1]   ret_from_fork+0x1f/0x30
+[  860.176626][    C1] irq event stamp: 4852124
+[  860.176634][    C1] hardirqs last  enabled at (4852124): [<ffffffff81cdd884>] kasan_quarantine_put+0xd4/0x230
+[  860.176657][    C1] hardirqs last disabled at (4852123): [<ffffffff81cdd7e9>] kasan_quarantine_put+0x39/0x230
+[  860.176680][    C1] softirqs last  enabled at (4851912): [<ffffffff814f6851>] run_ksoftirqd+0xc1/0x120
+[  860.176746][    C1] softirqs last disabled at (4851919): [<ffffffff814f6851>] run_ksoftirqd+0xc1/0x120
+[  860.176766][    C1] 
+[  860.176766][    C1] other info that might help us debug this:
+[  860.176772][    C1]  Possible unsafe locking scenario:
+[  860.176772][    C1] 
+[  860.176777][    C1]        CPU0
+[  860.176780][    C1]        ----
+[  860.176783][    C1]   lock(fs_reclaim);
+[  860.176797][    C1]   <Interrupt>
+[  860.176801][    C1]     lock(fs_reclaim);
+[  860.176811][    C1] 
+[  860.176811][    C1]  *** DEADLOCK ***
+[  860.176811][    C1] 
+[  860.176815][    C1] 6 locks held by ksoftirqd/1/19:
+[  860.176825][    C1]  #0: ffffffff8c91c200 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0x9/0x30
+[  860.176901][    C1]  #1: ffffffff8c91c200 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0x9/0x30
+[  860.176941][    C1]  #2: ffffffff8c91c200 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0x5/0x30
+[  860.177006][    C1]  #3: ffffffff8c91c200 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0x5/0x30
+[  860.177047][    C1]  #4: ffff88806f912620 (k-slock-AF_INET6/1){+.-.}-{2:2}, at: tcp_v6_rcv+0x3317/0x4470
+[  860.177095][    C1]  #5: ffff888074db2fa0 (slock-AF_INET6){+.-.}-{2:2}, at: mptcp_incoming_options+0x3a8/0x1fb0
+[  860.177167][    C1] 
+[  860.177167][    C1] stack backtrace:
+[  860.177174][    C1] CPU: 1 PID: 19 Comm: ksoftirqd/1 Not tainted 5.15.0-rc2-syzkaller #0
+[  860.177192][    C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
+[  860.177202][    C1] Call Trace:
+[  860.177210][    C1]  dump_stack_lvl+0x1dc/0x2d8
+[  860.177269][    C1]  print_usage_bug+0xa6d/0xea0
+[  860.177323][    C1]  mark_lock+0x168c/0x1e00
+[  860.177415][    C1]  __lock_acquire+0xc36/0x2b00
+[  860.177497][    C1]  lock_acquire+0x19f/0x4d0
+[  860.177650][    C1]  fs_reclaim_acquire+0x77/0x110
+[  860.177716][    C1]  kmem_cache_alloc_node+0x46/0x340
+[  860.177753][    C1]  __alloc_skb+0xd8/0x580
+[  860.177770][    C1]  sk_stream_alloc_skb+0x1f4/0xb40
+[  860.177790][    C1]  tcp_build_frag+0x268/0x1010
+[  860.177911][    C1]  mptcp_sendmsg_frag+0x6a1/0x1570
+[  860.177972][    C1]  __mptcp_subflow_push_pending+0x289/0xa10
+[  860.178017][    C1]  mptcp_incoming_options+0x497/0x1fb0
+[  860.178121][    C1]  tcp_data_queue+0xf4/0x8430
+[  860.178272][    C1]  tcp_rcv_established+0x9f7/0x22b0
+[  860.178332][    C1]  tcp_v6_do_rcv+0x4a9/0x12d0
+[  860.178354][    C1]  tcp_v6_rcv+0x36dc/0x4470
+[  860.178430][    C1]  ip6_protocol_deliver_rcu+0x9a5/0x1310
+[  860.178472][    C1]  ip6_input+0x10b/0x190
+[  860.178488][    C1]  ip_sabotage_in+0x1a1/0x220
+[  860.178520][    C1]  nf_hook_slow+0xb2/0x1f0
+[  860.178539][    C1]  nf_hook+0x235/0x3a0
+[  860.178621][    C1]  ipv6_rcv+0x87/0xd0
+[  860.178638][    C1]  __netif_receive_skb+0x1d1/0x500
+[  860.178711][    C1]  netif_receive_skb_internal+0x108/0x360
+[  860.178781][    C1]  netif_receive_skb+0x19/0x30
+[  860.178796][    C1]  br_handle_frame_finish+0x139b/0x1940
+[  860.178945][    C1]  br_nf_hook_thresh+0x3db/0x4f0
+[  860.179004][    C1]  br_nf_pre_routing_finish_ipv6+0x942/0xbc0
+[  860.179042][    C1]  br_nf_pre_routing_ipv6+0x294/0x340
+[  860.179074][    C1]  br_handle_frame+0x875/0x1050
+[  860.179163][    C1]  __netif_receive_skb_core+0x14d8/0x3d10
+[  860.179255][    C1]  __netif_receive_skb+0x120/0x500
+[  860.179350][    C1]  process_backlog+0x518/0x9a0
+[  860.179436][    C1]  __napi_poll+0xba/0x4f0
+[  860.179453][    C1]  net_rx_action+0x61c/0xf30
+[  860.179512][    C1]  __do_softirq+0x392/0x7a3
+[  860.179563][    C1]  run_ksoftirqd+0xc1/0x120
+[  860.179620][    C1]  smpboot_thread_fn+0x533/0x9d0
+[  860.179691][    C1]  kthread+0x453/0x480
+[  860.179734][    C1]  ret_from_fork+0x1f/0x30