==================================================================
BUG: KCSAN: data-race in wbt_done / wbt_issue
write to 0xffff888141fab930 of 8 bytes by task 2917 on cpu 1:
wbt_issue+0x9e/0xd0 block/blk-wbt.c:610
__rq_qos_issue+0x3b/0x70 block/blk-rq-qos.c:54
rq_qos_issue block/blk-rq-qos.h:159 [inline]
blk_mq_start_request+0xd0/0x230 block/blk-mq.c:721
loop_queue_rq+0x3c/0x230 drivers/block/loop.c:2004
blk_mq_dispatch_rq_list+0x570/0xe80 block/blk-mq.c:1369
__blk_mq_do_dispatch_sched block/blk-mq-sched.c:186 [inline]
blk_mq_do_dispatch_sched+0x370/0x610 block/blk-mq-sched.c:199
__blk_mq_sched_dispatch_requests+0x1fd/0x2a0 block/blk-mq-sched.c:310
blk_mq_sched_dispatch_requests+0x9f/0x110 block/blk-mq-sched.c:341
__blk_mq_run_hw_queue+0xc1/0x140 block/blk-mq.c:1488
blk_mq_run_work_fn+0x3d/0x50 block/blk-mq.c:1820
process_one_work+0x3e1/0x950 kernel/workqueue.c:2275
worker_thread+0x616/0xa70 kernel/workqueue.c:2421
kthread+0x20b/0x230 kernel/kthread.c:292
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:294
read to 0xffff888141fab930 of 8 bytes by interrupt on cpu 0:
wbt_done+0x50/0x1c0 block/blk-wbt.c:190
__rq_qos_done+0x3b/0x70 block/blk-rq-qos.c:45
rq_qos_done block/blk-rq-qos.h:153 [inline]
blk_mq_free_request+0x27b/0x330 block/blk-mq.c:529
__blk_mq_end_request+0x214/0x230 block/blk-mq.c:557
blk_mq_end_request+0x37/0x50 block/blk-mq.c:566
lo_complete_rq+0xca/0x180 drivers/block/loop.c:497
blk_complete_reqs block/blk-mq.c:576 [inline]
blk_done_softirq+0x69/0x90 block/blk-mq.c:581
__do_softirq+0x13c/0x2c3 kernel/softirq.c:345
run_ksoftirqd+0x13/0x20 kernel/softirq.c:652
smpboot_thread_fn+0x34f/0x520 kernel/smpboot.c:165
kthread+0x20b/0x230 kernel/kthread.c:292
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:294
Reported by Kernel Concurrency Sanitizer on:
CPU: 0 PID: 12 Comm: ksoftirqd/0 Not tainted 5.12.0-rc5-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
==================================================================
------------[ cut here ]------------
WARNING: CPU: 0 PID: 12 at drivers/gpu/drm/vkms/vkms_crtc.c:21 vkms_vblank_simulate+0x209/0x210 drivers/gpu/drm/vkms/vkms_crtc.c:21
Modules linked in:
CPU: 0 PID: 12 Comm: ksoftirqd/0 Not tainted 5.12.0-rc5-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:vkms_vblank_simulate+0x209/0x210 drivers/gpu/drm/vkms/vkms_crtc.c:21
Code: 00 00 00 48 c7 c6 80 24 92 86 31 c0 e8 20 43 f7 ff b8 01 00 00 00 48 83 c4 08 5b 41 5c 41 5d 41 5e 41 5f 5d c3 e8 77 e5 5a fe <0f> 0b e9 5d fe ff ff 55 41 57 41 56 41 55 41 54 53 48 83 ec 28 48
RSP: 0018:ffffc90000003e18 EFLAGS: 00010046
RAX: ffffffff82eb5079 RBX: 000000000000000d RCX: ffff888100c1e000
RDX: 0000000000010100 RSI: 000000000000000d RDI: 0000000000000001
RBP: ffff88813bc1da40 R08: ffffffff82eb4ece R09: 0001888101c894bf
R10: 0001ffffffffffff R11: 0000000000000000 R12: ffff88813bc1da58
R13: ffff88813bc1da40 R14: ffff888101c88628 R15: 0000000000fe4c00
FS: 0000000000000000(0000) GS:ffff88813bc00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f913b4a1f88 CR3: 0000000107099000 CR4: 00000000001526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
__run_hrtimer+0x163/0x460 kernel/time/hrtimer.c:1537
__hrtimer_run_queues kernel/time/hrtimer.c:1601 [inline]
hrtimer_interrupt+0x380/0xaf0 kernel/time/hrtimer.c:1663
local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1089 [inline]
__sysvec_apic_timer_interrupt+0x6f/0x200 arch/x86/kernel/apic/apic.c:1106
sysvec_apic_timer_interrupt+0x69/0x80 arch/x86/kernel/apic/apic.c:1100
asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:632
RIP: 0010:smap_restore arch/x86/include/asm/smap.h:70 [inline]
RIP: 0010:kcsan_setup_watchpoint+0x436/0x470 kernel/kcsan/core.c:590
Code: 89 da 4c 8b 5c 24 08 49 c7 02 00 00 00 00 f0 48 ff 0d 5e 25 9c 07 4d 85 db 74 0a 80 3d 34 23 9c 07 00 75 01 fb 4c 89 6c 24 38 <0f> 1f 44 00 00 48 83 c4 40 5b 41 5c 41 5d 41 5e 41 5f 5d c3 89 d0
RSP: 0018:ffffc90000ccbc78 EFLAGS: 00000246
RAX: 5561720a34bd4800 RBX: ffffffff88f32090 RCX: 000000000000009c
RDX: 0001ffff87666778 RSI: 0000000000000082 RDI: ffffffff88f3b210
RBP: ffff88810283ea80 R08: 0000000000000000 R09: 0001ffff8766677f
R10: ffffffff88f32090 R11: 0000000000000200 R12: 000000000000002c
R13: 0000000000000000 R14: ffff888141fab930 R15: 0000000000000008
wbt_done+0x50/0x1c0 block/blk-wbt.c:190
__rq_qos_done+0x3b/0x70 block/blk-rq-qos.c:45
rq_qos_done block/blk-rq-qos.h:153 [inline]
blk_mq_free_request+0x27b/0x330 block/blk-mq.c:529
__blk_mq_end_request+0x214/0x230 block/blk-mq.c:557
blk_mq_end_request+0x37/0x50 block/blk-mq.c:566
lo_complete_rq+0xca/0x180 drivers/block/loop.c:497
blk_complete_reqs block/blk-mq.c:576 [inline]
blk_done_softirq+0x69/0x90 block/blk-mq.c:581
__do_softirq+0x13c/0x2c3 kernel/softirq.c:345
run_ksoftirqd+0x13/0x20 kernel/softirq.c:652
smpboot_thread_fn+0x34f/0x520 kernel/smpboot.c:165
kthread+0x20b/0x230 kernel/kthread.c:292
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:294
---[ end trace 753602ec03be8d99 ]---
------------[ cut here ]------------
WARNING: CPU: 0 PID: 12 at drivers/gpu/drm/vkms/vkms_crtc.c:21 vkms_vblank_simulate+0x209/0x210 drivers/gpu/drm/vkms/vkms_crtc.c:21
Modules linked in:
CPU: 0 PID: 12 Comm: ksoftirqd/0 Tainted: G W 5.12.0-rc5-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:vkms_vblank_simulate+0x209/0x210 drivers/gpu/drm/vkms/vkms_crtc.c:21
Code: 00 00 00 48 c7 c6 80 24 92 86 31 c0 e8 20 43 f7 ff b8 01 00 00 00 48 83 c4 08 5b 41 5c 41 5d 41 5e 41 5f 5d c3 e8 77 e5 5a fe <0f> 0b e9 5d fe ff ff 55 41 57 41 56 41 55 41 54 53 48 83 ec 28 48
RSP: 0018:ffffc90000003e18 EFLAGS: 00010046
RAX: ffffffff82eb5079 RBX: 0000000000000018 RCX: ffff888100c1e000
RDX: 0000000000010100 RSI: 0000000000000018 RDI: 0000000000000001
RBP: ffff88813bc1da40 R08: ffffffff82eb4ece R09: 0001888101c894bf
R10: 0001ffffffffffff R11: 00000000fffffffe R12: ffff88813bc1da58
R13: ffff88813bc1da40 R14: ffff888101c88628 R15: 0000000000fe4c00
FS: 0000000000000000(0000) GS:ffff88813bc00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f913b4a1f88 CR3: 0000000107099000 CR4: 00000000001526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
__run_hrtimer+0x163/0x460 kernel/time/hrtimer.c:1537
__hrtimer_run_queues kernel/time/hrtimer.c:1601 [inline]
hrtimer_interrupt+0x380/0xaf0 kernel/time/hrtimer.c:1663
local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1089 [inline]
__sysvec_apic_timer_interrupt+0x6f/0x200 arch/x86/kernel/apic/apic.c:1106
sysvec_apic_timer_interrupt+0x69/0x80 arch/x86/kernel/apic/apic.c:1100
asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:632
RIP: 0010:smap_restore arch/x86/include/asm/smap.h:70 [inline]
RIP: 0010:kcsan_setup_watchpoint+0x436/0x470 kernel/kcsan/core.c:590
Code: 89 da 4c 8b 5c 24 08 49 c7 02 00 00 00 00 f0 48 ff 0d 5e 25 9c 07 4d 85 db 74 0a 80 3d 34 23 9c 07 00 75 01 fb 4c 89 6c 24 38 <0f> 1f 44 00 00 48 83 c4 40 5b 41 5c 41 5d 41 5e 41 5f 5d c3 89 d0
RSP: 0018:ffffc90000ccbc78 EFLAGS: 00000246
RAX: 5561720a34bd4800 RBX: ffffffff88f32090 RCX: 000000000000009c
RDX: 0001ffff87666778 RSI: 0000000000000082 RDI: ffffffff88f3b210
RBP: ffff88810283ea80 R08: 0000000000000000 R09: 0001ffff8766677f
R10: ffffffff88f32090 R11: 0000000000000200 R12: 000000000000002c
R13: 0000000000000000 R14: ffff888141fab930 R15: 0000000000000008
wbt_done+0x50/0x1c0 block/blk-wbt.c:190
__rq_qos_done+0x3b/0x70 block/blk-rq-qos.c:45
rq_qos_done block/blk-rq-qos.h:153 [inline]
blk_mq_free_request+0x27b/0x330 block/blk-mq.c:529
__blk_mq_end_request+0x214/0x230 block/blk-mq.c:557
blk_mq_end_request+0x37/0x50 block/blk-mq.c:566
lo_complete_rq+0xca/0x180 drivers/block/loop.c:497
blk_complete_reqs block/blk-mq.c:576 [inline]
blk_done_softirq+0x69/0x90 block/blk-mq.c:581
__do_softirq+0x13c/0x2c3 kernel/softirq.c:345
run_ksoftirqd+0x13/0x20 kernel/softirq.c:652
smpboot_thread_fn+0x34f/0x520 kernel/smpboot.c:165
kthread+0x20b/0x230 kernel/kthread.c:292
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:294
---[ end trace 753602ec03be8d9a ]---
------------[ cut here ]------------
WARNING: CPU: 0 PID: 12 at drivers/gpu/drm/vkms/vkms_crtc.c:21 vkms_vblank_simulate+0x209/0x210 drivers/gpu/drm/vkms/vkms_crtc.c:21
Modules linked in:
CPU: 0 PID: 12 Comm: ksoftirqd/0 Tainted: G W 5.12.0-rc5-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:vkms_vblank_simulate+0x209/0x210 drivers/gpu/drm/vkms/vkms_crtc.c:21
Code: 00 00 00 48 c7 c6 80 24 92 86 31 c0 e8 20 43 f7 ff b8 01 00 00 00 48 83 c4 08 5b 41 5c 41 5d 41 5e 41 5f 5d c3 e8 77 e5 5a fe <0f> 0b e9 5d fe ff ff 55 41 57 41 56 41 55 41 54 53 48 83 ec 28 48
RSP: 0018:ffffc90000003e18 EFLAGS: 00010046
RAX: ffffffff82eb5079 RBX: 0000000000000016 RCX: ffff888100c1e000
RDX: 0000000000010100 RSI: 0000000000000016 RDI: 0000000000000001
RBP: ffff88813bc1da40 R08: ffffffff82eb4ece R09: 0001888101c894bf
R10: 0001ffffffffffff R11: 00000000fffffffe R12: ffff88813bc1da58
R13: ffff88813bc1da40 R14: ffff888101c88628 R15: 0000000000fe4c00
FS: 0000000000000000(0000) GS:ffff88813bc00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f913b4a1f88 CR3: 0000000107099000 CR4: 00000000001526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
__run_hrtimer+0x163/0x460 kernel/time/hrtimer.c:1537
__hrtimer_run_queues kernel/time/hrtimer.c:1601 [inline]
hrtimer_interrupt+0x380/0xaf0 kernel/time/hrtimer.c:1663
local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1089 [inline]
__sysvec_apic_timer_interrupt+0x6f/0x200 arch/x86/kernel/apic/apic.c:1106
sysvec_apic_timer_interrupt+0x69/0x80 arch/x86/kernel/apic/apic.c:1100
asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:632
RIP: 0010:smap_restore arch/x86/include/asm/smap.h:70 [inline]
RIP: 0010:kcsan_setup_watchpoint+0x436/0x470 kernel/kcsan/core.c:590
Code: 89 da 4c 8b 5c 24 08 49 c7 02 00 00 00 00 f0 48 ff 0d 5e 25 9c 07 4d 85 db 74 0a 80 3d 34 23 9c 07 00 75 01 fb 4c 89 6c 24 38 <0f> 1f 44 00 00 48 83 c4 40 5b 41 5c 41 5d 41 5e 41 5f 5d c3 89 d0
RSP: 0018:ffffc90000ccbc78 EFLAGS: 00000246
RAX: 5561720a34bd4800 RBX: ffffffff88f32090 RCX: 000000000000009c
RDX: 0001ffff87666778 RSI: 0000000000000082 RDI: ffffffff88f3b210
RBP: ffff88810283ea80 R08: 0000000000000000 R09: 0001ffff8766677f
R10: ffffffff88f32090 R11: 0000000000000200 R12: 000000000000002c
R13: 0000000000000000 R14: ffff888141fab930 R15: 0000000000000008
wbt_done+0x50/0x1c0 block/blk-wbt.c:190
__rq_qos_done+0x3b/0x70 block/blk-rq-qos.c:45
rq_qos_done block/blk-rq-qos.h:153 [inline]
blk_mq_free_request+0x27b/0x330 block/blk-mq.c:529
__blk_mq_end_request+0x214/0x230 block/blk-mq.c:557
blk_mq_end_request+0x37/0x50 block/blk-mq.c:566
lo_complete_rq+0xca/0x180 drivers/block/loop.c:497
blk_complete_reqs block/blk-mq.c:576 [inline]
blk_done_softirq+0x69/0x90 block/blk-mq.c:581
__do_softirq+0x13c/0x2c3 kernel/softirq.c:345
run_ksoftirqd+0x13/0x20 kernel/softirq.c:652
smpboot_thread_fn+0x34f/0x520 kernel/smpboot.c:165
kthread+0x20b/0x230 kernel/kthread.c:292
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:294
---[ end trace 753602ec03be8d9b ]---
------------[ cut here ]------------
WARNING: CPU: 0 PID: 14431 at drivers/gpu/drm/vkms/vkms_crtc.c:21 vkms_vblank_simulate+0x209/0x210 drivers/gpu/drm/vkms/vkms_crtc.c:21
Modules linked in:
CPU: 0 PID: 14431 Comm: syz-executor.1 Tainted: G W 5.12.0-rc5-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:vkms_vblank_simulate+0x209/0x210 drivers/gpu/drm/vkms/vkms_crtc.c:21
Code: 00 00 00 48 c7 c6 80 24 92 86 31 c0 e8 20 43 f7 ff b8 01 00 00 00 48 83 c4 08 5b 41 5c 41 5d 41 5e 41 5f 5d c3 e8 77 e5 5a fe <0f> 0b e9 5d fe ff ff 55 41 57 41 56 41 55 41 54 53 48 83 ec 28 48
RSP: 0018:ffffc90000003e18 EFLAGS: 00010046
RAX: ffffffff82eb5079 RBX: 000000000000001c RCX: ffff888111084000
RDX: 0000000080010000 RSI: 000000000000001c RDI: 0000000000000001
RBP: ffff88813bc1da40 R08: ffffffff82eb4ece R09: 0001888101c894bf
R10: 0001ffffffffffff R11: ffffc90000003ff8 R12: ffff88813bc1da58
R13: ffff88813bc1da40 R14: ffff888101c88628 R15: 0000000000fe4c00
FS: 00007fb767587700(0000) GS:ffff88813bc00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f913b4a1f88 CR3: 0000000135b8b000 CR4: 00000000001526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
__run_hrtimer+0x163/0x460 kernel/time/hrtimer.c:1537
__hrtimer_run_queues kernel/time/hrtimer.c:1601 [inline]
hrtimer_interrupt+0x380/0xaf0 kernel/time/hrtimer.c:1663
local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1089 [inline]
__sysvec_apic_timer_interrupt+0x6f/0x200 arch/x86/kernel/apic/apic.c:1106
sysvec_apic_timer_interrupt+0x69/0x80 arch/x86/kernel/apic/apic.c:1100
asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:632
RIP: 0010:__raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:161 [inline]
RIP: 0010:_raw_spin_unlock_irqrestore+0x3a/0x50 kernel/locking/spinlock.c:191
Code: e8 db ad ce fb 48 83 3d 9b 44 de 01 00 74 28 48 89 df e8 c9 e2 ad fb 66 90 41 f7 c6 00 02 00 00 74 01 fb 65 ff 0d 0e 4a 79 7a <74> 04 5b 41 5e c3 e8 d2 0b 78 fb eb f5 0f 0b 0f 1f 80 00 00 00 00
RSP: 0018:ffffc9000588f990 EFLAGS: 00000286
RAX: 0000000000000001 RBX: ffff888100432cb8 RCX: 00000000000004e5
RDX: 0001ffff87666778 RSI: 0000000000000286 RDI: ffff888100432cb8
RBP: 00000000000002ba R08: 0000000000000000 R09: 0001ffff8766677f
R10: 0001ffffffffffff R11: 0000000000000000 R12: ffff88800bc39240
R13: ffffc9000588fb00 R14: 0000000000000286 R15: ffff888100432cb0
spin_unlock_irqrestore include/linux/spinlock.h:409 [inline]
delete_from_page_cache_batch+0x5aa/0x820 mm/filemap.c:361
truncate_inode_pages_range+0x1d4/0xd60 mm/truncate.c:330
truncate_inode_pages+0x20/0x30 mm/truncate.c:428
kill_bdev fs/block_dev.c:86 [inline]
__blkdev_put+0x24f/0x460 fs/block_dev.c:1581
blkdev_put+0x222/0x2a0 fs/block_dev.c:1641
kill_block_super+0x7b/0x90 fs/super.c:1397
reiserfs_kill_sb+0xe8/0xf0 fs/reiserfs/super.c:570
deactivate_locked_super+0x6a/0xb0 fs/super.c:335
mount_bdev+0x204/0x290 fs/super.c:1369
get_super_block+0x2d/0x40 fs/reiserfs/super.c:2606
legacy_get_tree+0x70/0xc0 fs/fs_context.c:592
vfs_get_tree+0x4a/0x1a0 fs/super.c:1497
do_new_mount fs/namespace.c:2903 [inline]
path_mount+0x11b9/0x1c00 fs/namespace.c:3233
do_mount fs/namespace.c:3246 [inline]
__do_sys_mount fs/namespace.c:3454 [inline]
__se_sys_mount+0x23d/0x2e0 fs/namespace.c:3431
__x64_sys_mount+0x63/0x70 fs/namespace.c:3431
do_syscall_64+0x39/0x80 arch/x86/entry/common.c:46
entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x46797a
Code: 48 c7 c2 bc ff ff ff f7 d8 64 89 02 b8 ff ff ff ff eb d2 e8 b8 04 00 00 0f 1f 84 00 00 00 00 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fb767586fa8 EFLAGS: 00000206 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 0000000020000200 RCX: 000000000046797a
RDX: 0000000020000000 RSI: 0000000020000100 RDI: 00007fb767587000
RBP: 00007fb767587040 R08: 00007fb767587040 R09: 0000000020000000
R10: 0000000000000000 R11: 0000000000000206 R12: 0000000020000000
R13: 0000000020000100 R14: 00007fb767587000 R15: 0000000020011100
---[ end trace 753602ec03be8d9c ]---
------------[ cut here ]------------
WARNING: CPU: 0 PID: 14431 at drivers/gpu/drm/vkms/vkms_crtc.c:21 vkms_vblank_simulate+0x209/0x210 drivers/gpu/drm/vkms/vkms_crtc.c:21
Modules linked in:
CPU: 0 PID: 14431 Comm: syz-executor.1 Tainted: G W 5.12.0-rc5-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:vkms_vblank_simulate+0x209/0x210 drivers/gpu/drm/vkms/vkms_crtc.c:21
Code: 00 00 00 48 c7 c6 80 24 92 86 31 c0 e8 20 43 f7 ff b8 01 00 00 00 48 83 c4 08 5b 41 5c 41 5d 41 5e 41 5f 5d c3 e8 77 e5 5a fe <0f> 0b e9 5d fe ff ff 55 41 57 41 56 41 55 41 54 53 48 83 ec 28 48
RSP: 0018:ffffc90000003e18 EFLAGS: 00010046
RAX: ffffffff82eb5079 RBX: 000000000000001b RCX: ffff888111084000
RDX: 0000000000010000 RSI: 000000000000001b RDI: 0000000000000001
RBP: ffff88813bc1da40 R08: ffffffff82eb4ece R09: 0001888101c894bf
R10: 0001ffffffffffff R11: ffff888111084000 R12: ffff88813bc1da58
R13: ffff88813bc1da40 R14: ffff888101c88628 R15: 0000000000fe4c00
FS: 00007fb767587700(0000) GS:ffff88813bc00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f913b4a1f88 CR3: 0000000135b8b000 CR4: 00000000001526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
__run_hrtimer+0x163/0x460 kernel/time/hrtimer.c:1537
__hrtimer_run_queues kernel/time/hrtimer.c:1601 [inline]
hrtimer_interrupt+0x380/0xaf0 kernel/time/hrtimer.c:1663
local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1089 [inline]
__sysvec_apic_timer_interrupt+0x6f/0x200 arch/x86/kernel/apic/apic.c:1106
sysvec_apic_timer_interrupt+0x69/0x80 arch/x86/kernel/apic/apic.c:1100
asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:632
RIP: 0010:__raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:161 [inline]
RIP: 0010:_raw_spin_unlock_irqrestore+0x3a/0x50 kernel/locking/spinlock.c:191
Code: e8 db ad ce fb 48 83 3d 9b 44 de 01 00 74 28 48 89 df e8 c9 e2 ad fb 66 90 41 f7 c6 00 02 00 00 74 01 fb 65 ff 0d 0e 4a 79 7a <74> 04 5b 41 5e c3 e8 d2 0b 78 fb eb f5 0f 0b 0f 1f 80 00 00 00 00
RSP: 0018:ffffc9000588f990 EFLAGS: 00000286
RAX: 0000000000000001 RBX: ffff888100432cb8 RCX: 00000000000004e5
RDX: 0001ffff87666778 RSI: 0000000000000286 RDI: ffff888100432cb8
RBP: 00000000000002ba R08: 0000000000000000 R09: 0001ffff8766677f
R10: 0001ffffffffffff R11: 0000000000000000 R12: ffff88800bc39240
R13: ffffc9000588fb00 R14: 0000000000000286 R15: ffff888100432cb0
spin_unlock_irqrestore include/linux/spinlock.h:409 [inline]
delete_from_page_cache_batch+0x5aa/0x820 mm/filemap.c:361
truncate_inode_pages_range+0x1d4/0xd60 mm/truncate.c:330
truncate_inode_pages+0x20/0x30 mm/truncate.c:428
kill_bdev fs/block_dev.c:86 [inline]
__blkdev_put+0x24f/0x460 fs/block_dev.c:1581
blkdev_put+0x222/0x2a0 fs/block_dev.c:1641
kill_block_super+0x7b/0x90 fs/super.c:1397
reiserfs_kill_sb+0xe8/0xf0 fs/reiserfs/super.c:570
deactivate_locked_super+0x6a/0xb0 fs/super.c:335
mount_bdev+0x204/0x290 fs/super.c:1369
get_super_block+0x2d/0x40 fs/reiserfs/super.c:2606
legacy_get_tree+0x70/0xc0 fs/fs_context.c:592
vfs_get_tree+0x4a/0x1a0 fs/super.c:1497
do_new_mount fs/namespace.c:2903 [inline]
path_mount+0x11b9/0x1c00 fs/namespace.c:3233
do_mount fs/namespace.c:3246 [inline]
__do_sys_mount fs/namespace.c:3454 [inline]
__se_sys_mount+0x23d/0x2e0 fs/namespace.c:3431
__x64_sys_mount+0x63/0x70 fs/namespace.c:3431
do_syscall_64+0x39/0x80 arch/x86/entry/common.c:46
entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x46797a
Code: 48 c7 c2 bc ff ff ff f7 d8 64 89 02 b8 ff ff ff ff eb d2 e8 b8 04 00 00 0f 1f 84 00 00 00 00 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fb767586fa8 EFLAGS: 00000206 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 0000000020000200 RCX: 000000000046797a
RDX: 0000000020000000 RSI: 0000000020000100 RDI: 00007fb767587000
RBP: 00007fb767587040 R08: 00007fb767587040 R09: 0000000020000000
R10: 0000000000000000 R11: 0000000000000206 R12: 0000000020000000
R13: 0000000020000100 R14: 00007fb767587000 R15: 0000000020011100
---[ end trace 753602ec03be8d9d ]---
------------[ cut here ]------------
WARNING: CPU: 0 PID: 14431 at drivers/gpu/drm/vkms/vkms_crtc.c:21 vkms_vblank_simulate+0x209/0x210 drivers/gpu/drm/vkms/vkms_crtc.c:21
Modules linked in:
CPU: 0 PID: 14431 Comm: syz-executor.1 Tainted: G W 5.12.0-rc5-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:vkms_vblank_simulate+0x209/0x210 drivers/gpu/drm/vkms/vkms_crtc.c:21
Code: 00 00 00 48 c7 c6 80 24 92 86 31 c0 e8 20 43 f7 ff b8 01 00 00 00 48 83 c4 08 5b 41 5c 41 5d 41 5e 41 5f 5d c3 e8 77 e5 5a fe <0f> 0b e9 5d fe ff ff 55 41 57 41 56 41 55 41 54 53 48 83 ec 28 48
RSP: 0018:ffffc90000003e18 EFLAGS: 00010046
RAX: ffffffff82eb5079 RBX: 000000000000001b RCX: ffff888111084000
RDX: 0000000000010000 RSI: 000000000000001b RDI: 0000000000000001
RBP: ffff88813bc1da40 R08: ffffffff82eb4ece R09: 0001888101c894bf
R10: 0001ffffffffffff R11: 00000000000002f1 R12: ffff88813bc1da58
R13: ffff88813bc1da40 R14: ffff888101c88628 R15: 0000000000fe4c00
FS: 00007fb767587700(0000) GS:ffff88813bc00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f913b4a1f88 CR3: 0000000135b8b000 CR4: 00000000001526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
__run_hrtimer+0x163/0x460 kernel/time/hrtimer.c:1537
__hrtimer_run_queues kernel/time/hrtimer.c:1601 [inline]
hrtimer_interrupt+0x380/0xaf0 kernel/time/hrtimer.c:1663
local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1089 [inline]
__sysvec_apic_timer_interrupt+0x6f/0x200 arch/x86/kernel/apic/apic.c:1106
sysvec_apic_timer_interrupt+0x69/0x80 arch/x86/kernel/apic/apic.c:1100
asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:632
RIP: 0010:__raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:161 [inline]
RIP: 0010:_raw_spin_unlock_irqrestore+0x3a/0x50 kernel/locking/spinlock.c:191
Code: e8 db ad ce fb 48 83 3d 9b 44 de 01 00 74 28 48 89 df e8 c9 e2 ad fb 66 90 41 f7 c6 00 02 00 00 74 01 fb 65 ff 0d 0e 4a 79 7a <74> 04 5b 41 5e c3 e8 d2 0b 78 fb eb f5 0f 0b 0f 1f 80 00 00 00 00
RSP: 0018:ffffc9000588f990 EFLAGS: 00000286
RAX: 0000000000000001 RBX: ffff888100432cb8 RCX: 00000000000004e5
RDX: 0001ffff87666778 RSI: 0000000000000286 RDI: ffff888100432cb8
RBP: 00000000000002ba R08: 0000000000000000 R09: 0001ffff8766677f
R10: 0001ffffffffffff R11: 0000000000000000 R12: ffff88800bc39240
R13: ffffc9000588fb00 R14: 0000000000000286 R15: ffff888100432cb0
spin_unlock_irqrestore include/linux/spinlock.h:409 [inline]
delete_from_page_cache_batch+0x5aa/0x820 mm/filemap.c:361
truncate_inode_pages_range+0x1d4/0xd60 mm/truncate.c:330
truncate_inode_pages+0x20/0x30 mm/truncate.c:428
kill_bdev fs/block_dev.c:86 [inline]
__blkdev_put+0x24f/0x460 fs/block_dev.c:1581
blkdev_put+0x222/0x2a0 fs/block_dev.c:1641
kill_block_super+0x7b/0x90 fs/super.c:1397
reiserfs_kill_sb+0xe8/0xf0 fs/reiserfs/super.c:570
deactivate_locked_super+0x6a/0xb0 fs/super.c:335
mount_bdev+0x204/0x290 fs/super.c:1369
get_super_block+0x2d/0x40 fs/reiserfs/super.c:2606
legacy_get_tree+0x70/0xc0 fs/fs_context.c:592
vfs_get_tree+0x4a/0x1a0 fs/super.c:1497
do_new_mount fs/namespace.c:2903 [inline]
path_mount+0x11b9/0x1c00 fs/namespace.c:3233
do_mount fs/namespace.c:3246 [inline]
__do_sys_mount fs/namespace.c:3454 [inline]
__se_sys_mount+0x23d/0x2e0 fs/namespace.c:3431
__x64_sys_mount+0x63/0x70 fs/namespace.c:3431
do_syscall_64+0x39/0x80 arch/x86/entry/common.c:46
entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x46797a
Code: 48 c7 c2 bc ff ff ff f7 d8 64 89 02 b8 ff ff ff ff eb d2 e8 b8 04 00 00 0f 1f 84 00 00 00 00 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fb767586fa8 EFLAGS: 00000206 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 0000000020000200 RCX: 000000000046797a
RDX: 0000000020000000 RSI: 0000000020000100 RDI: 00007fb767587000
RBP: 00007fb767587040 R08: 00007fb767587040 R09: 0000000020000000
R10: 0000000000000000 R11: 0000000000000206 R12: 0000000020000000
R13: 0000000020000100 R14: 00007fb767587000 R15: 0000000020011100
---[ end trace 753602ec03be8d9e ]---