INFO: task syz-executor.1:4154 blocked for more than 143 seconds.
Not tainted 5.16.0-rc1-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.1 state:D stack:25256 pid: 4154 ppid: 15519 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:4972 [inline]
__schedule+0xa9a/0x4940 kernel/sched/core.c:6253
schedule+0xd2/0x260 kernel/sched/core.c:6326
__bio_queue_enter+0x3c5/0x6a0 block/blk-core.c:441
bio_queue_enter block/blk.h:91 [inline]
blk_mq_get_request block/blk-mq.c:2588 [inline]
blk_mq_submit_bio+0x4ae/0x22c0 block/blk-mq.c:2632
__submit_bio block/blk-core.c:849 [inline]
__submit_bio_noacct_mq block/blk-core.c:924 [inline]
submit_bio_noacct block/blk-core.c:950 [inline]
submit_bio_noacct+0x82c/0xa20 block/blk-core.c:939
submit_bio block/blk-core.c:1011 [inline]
submit_bio+0x1ea/0x430 block/blk-core.c:969
submit_bh_wbc+0x5e8/0x7e0 fs/buffer.c:3054
__block_write_full_page+0x875/0x1350 fs/buffer.c:1809
block_write_full_page+0x14d/0x190 fs/buffer.c:2980
__writepage+0x60/0x180 mm/page-writeback.c:2320
write_cache_pages+0x6f4/0x10c0 mm/page-writeback.c:2255
generic_writepages mm/page-writeback.c:2346 [inline]
generic_writepages+0xe2/0x150 mm/page-writeback.c:2335
do_writepages+0x1ab/0x690 mm/page-writeback.c:2364
filemap_fdatawrite_wbc mm/filemap.c:407 [inline]
filemap_fdatawrite_wbc+0x143/0x1b0 mm/filemap.c:397
__filemap_fdatawrite_range mm/filemap.c:440 [inline]
file_write_and_wait_range+0x163/0x1e0 mm/filemap.c:824
blkdev_fsync+0x4a/0xa0 block/fops.c:465
vfs_fsync_range+0x13a/0x220 fs/sync.c:182
generic_write_sync include/linux/fs.h:2956 [inline]
blkdev_write_iter+0x552/0x690 block/fops.c:559
call_write_iter include/linux/fs.h:2162 [inline]
do_iter_readv_writev+0x472/0x750 fs/read_write.c:725
do_iter_write+0x188/0x710 fs/read_write.c:851
vfs_iter_write+0x70/0xa0 fs/read_write.c:892
iter_file_splice_write+0x723/0xc70 fs/splice.c:689
do_splice_from fs/splice.c:767 [inline]
direct_splice_actor+0x110/0x180 fs/splice.c:936
splice_direct_to_actor+0x34b/0x8c0 fs/splice.c:891
do_splice_direct+0x1b3/0x280 fs/splice.c:979
do_sendfile+0xaf2/0x1250 fs/read_write.c:1245
__do_sys_sendfile64 fs/read_write.c:1310 [inline]
__se_sys_sendfile64 fs/read_write.c:1296 [inline]
__x64_sys_sendfile64+0x1cc/0x210 fs/read_write.c:1296
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x7f493b17cae9
RSP: 002b:00007f49386f2188 EFLAGS: 00000246 ORIG_RAX: 0000000000000028
RAX: ffffffffffffffda RBX: 00007f493b28ff60 RCX: 00007f493b17cae9
RDX: 0000000000000000 RSI: 0000000000000004 RDI: 0000000000000004
RBP: 00007f493b1d6f6d R08: 0000000000000000 R09: 0000000000000000
R10: 0000000024002da8 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffc2444302f R14: 00007f49386f2300 R15: 0000000000022000
INFO: task syz-executor.1:4158 blocked for more than 143 seconds.
Not tainted 5.16.0-rc1-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.1 state:D stack:28480 pid: 4158 ppid: 15519 flags:0x00000004
Call Trace:
context_switch kernel/sched/core.c:4972 [inline]
__schedule+0xa9a/0x4940 kernel/sched/core.c:6253
schedule+0xd2/0x260 kernel/sched/core.c:6326
blk_mq_freeze_queue_wait+0x112/0x160 block/blk-mq.c:178
loop_set_status+0x17d/0x930 drivers/block/loop.c:1264
loop_set_status_old+0x148/0x1b0 drivers/block/loop.c:1396
lo_ioctl+0x3e9/0x17c0 drivers/block/loop.c:1566
blkdev_ioctl+0x37a/0x800 block/ioctl.c:609
vfs_ioctl fs/ioctl.c:51 [inline]
__do_sys_ioctl fs/ioctl.c:874 [inline]
__se_sys_ioctl fs/ioctl.c:860 [inline]
__x64_sys_ioctl+0x193/0x200 fs/ioctl.c:860
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x7f493b17cae9
RSP: 002b:00007f49386d1188 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007f493b290020 RCX: 00007f493b17cae9
RDX: 0000000020000780 RSI: 0000000000004c02 RDI: 0000000000000004
RBP: 00007f493b1d6f6d R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffc2444302f R14: 00007f49386d1300 R15: 0000000000022000
Showing all locks held in the system:
1 lock held by ksoftirqd/0/13:
#0: ffff8880b9c39a98 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested+0x2b/0x120 kernel/sched/core.c:478
1 lock held by khungtaskd/27:
#0: ffffffff8bb83a60 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x53/0x260 kernel/locking/lockdep.c:6458
1 lock held by systemd-journal/2957:
2 locks held by systemd-udevd/2969:
#0: ffff88801a16f918 (&disk->open_mutex){+.+.}-{3:3}, at: blkdev_get_by_dev.part.0+0x9b/0xb50 block/bdev.c:819
#1: ffff88801a16b360 (&lo->lo_mutex){+.+.}-{3:3}, at: lo_open+0x75/0x120 drivers/block/loop.c:1733
1 lock held by in:imklog/6216:
#0: ffff88807ba0c870 (&f->f_pos_lock){+.+.}-{3:3}, at: __fdget_pos+0xe9/0x100 fs/file.c:990
2 locks held by rs:main Q:Reg/6217:
#0: ffff888072115c70 (&f->f_pos_lock){+.+.}-{3:3}, at: __fdget_pos+0xe9/0x100 fs/file.c:990
#1: ffff8880b9d279c8 (&per_cpu_ptr(group->pcpu, cpu)->seq){-.-.}-{0:0}, at: psi_task_switch+0x173/0x490 kernel/sched/psi.c:871
3 locks held by kworker/u4:7/17628:
#0: ffff8880141dd938 ((wq_completion)writeback){+.+.}-{0:0}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline]
#0: ffff8880141dd938 ((wq_completion)writeback){+.+.}-{0:0}, at: arch_atomic_long_set include/linux/atomic/atomic-long.h:41 [inline]
#0: ffff8880141dd938 ((wq_completion)writeback){+.+.}-{0:0}, at: atomic_long_set include/linux/atomic/atomic-instrumented.h:1198 [inline]
#0: ffff8880141dd938 ((wq_completion)writeback){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:635 [inline]
#0: ffff8880141dd938 ((wq_completion)writeback){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:662 [inline]
#0: ffff8880141dd938 ((wq_completion)writeback){+.+.}-{0:0}, at: process_one_work+0x896/0x1690 kernel/workqueue.c:2269
#1: ffffc90004bafdb0 ((work_completion)(&(&wb->dwork)->work)){+.+.}-{0:0}, at: process_one_work+0x8ca/0x1690 kernel/workqueue.c:2273
#2: ffff888010e620e0 (&type->s_umount_key#48){.+.+}-{3:3}, at: trylock_super+0x1d/0x100 fs/super.c:418
1 lock held by syz-executor.1/4158:
#0: ffff88801a16b360 (&lo->lo_mutex){+.+.}-{3:3}, at: loop_set_status+0x2a/0x930 drivers/block/loop.c:1248
=============================================
NMI backtrace for cpu 1
CPU: 1 PID: 27 Comm: khungtaskd Not tainted 5.16.0-rc1-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
__dump_stack lib/dump_stack.c:88 [inline]
dump_stack_lvl+0xcd/0x134 lib/dump_stack.c:106
nmi_cpu_backtrace.cold+0x47/0x144 lib/nmi_backtrace.c:105
nmi_trigger_cpumask_backtrace+0x1ae/0x220 lib/nmi_backtrace.c:62
trigger_all_cpu_backtrace include/linux/nmi.h:146 [inline]
check_hung_uninterruptible_tasks kernel/hung_task.c:210 [inline]
watchdog+0xc1d/0xf50 kernel/hung_task.c:295
kthread+0x405/0x4f0 kernel/kthread.c:327
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 2957 Comm: systemd-journal Not tainted 5.16.0-rc1-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:decay_load kernel/sched/pelt.c:57 [inline]
RIP: 0010:accumulate_sum kernel/sched/pelt.c:119 [inline]
RIP: 0010:___update_load_sum kernel/sched/pelt.c:230 [inline]
RIP: 0010:__update_load_avg_se+0x4f7/0xf00 kernel/sched/pelt.c:312
Code: 41 83 ff 1f 44 89 fe 0f 87 37 06 00 00 48 8d 3c b5 40 dd ab 89 48 ba 00 00 00 00 00 fc ff df 48 89 f9 48 c1 e9 03 0f b6 0c 11 <48> 89 fa 83 e2 07 83 c2 03 38 ca 7c 08 84 c9 0f 85 bf 05 00 00 8b
RSP: 0018:ffffc90000007a30 EFLAGS: 00000016
RAX: 000000000000015a RBX: ffff8880b9c39b00 RCX: 0000000000000000
RDX: dffffc0000000000 RSI: 0000000000000012 RDI: ffffffff89abdd88
RBP: ffffc90000007ab0 R08: 0000000000000000 R09: 0000000000000177
R10: ffff888011931e48 R11: 0000000000000000 R12: ffff888011931d80
R13: 0000000000000000 R14: 00000000000049f4 R15: 0000000000000012
FS: 00007f889104e8c0(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f888dca7000 CR3: 000000007aacb000 CR4: 0000000000350ef0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600
Call Trace:
update_load_avg+0x17d/0x1830 kernel/sched/fair.c:3813
enqueue_entity+0xbd/0x1730 kernel/sched/fair.c:4257
enqueue_task_fair+0x208/0x1bc0 kernel/sched/fair.c:5588
enqueue_task kernel/sched/core.c:1999 [inline]
activate_task kernel/sched/core.c:2024 [inline]
ttwu_do_activate+0x1d9/0x7b0 kernel/sched/core.c:3600
ttwu_queue kernel/sched/core.c:3796 [inline]
try_to_wake_up+0x508/0x15a0 kernel/sched/core.c:4119
call_timer_fn+0x1a5/0x6b0 kernel/time/timer.c:1421
expire_timers kernel/time/timer.c:1466 [inline]
__run_timers.part.0+0x675/0xa20 kernel/time/timer.c:1734
__run_timers kernel/time/timer.c:1715 [inline]
run_timer_softirq+0xb3/0x1d0 kernel/time/timer.c:1747
__do_softirq+0x29b/0x9c2 kernel/softirq.c:558
invoke_softirq kernel/softirq.c:432 [inline]
__irq_exit_rcu+0x123/0x180 kernel/softirq.c:636
irq_exit_rcu+0x5/0x20 kernel/softirq.c:648
sysvec_apic_timer_interrupt+0x93/0xc0 arch/x86/kernel/apic/apic.c:1097
asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:638
RIP: 0010:stack_trace_consume_entry+0xd3/0x160 kernel/stacktrace.c:93
Code: 02 00 0f 85 92 00 00 00 8d 45 01 89 43 10 48 8b 03 48 8d 2c e8 48 b8 00 00 00 00 00 fc ff df 48 89 ea 48 c1 ea 03 80 3c 02 00 <75> 5c 48 89 75 00 8b 43 08 39 43 10 0f 92 c0 48 83 c4 08 5b 5d c3
RSP: 0018:ffffc900027df928 EFLAGS: 00000246
RAX: dffffc0000000000 RBX: ffffc900027dfa00 RCX: 0000000000000000
RDX: 1ffff920004fbf54 RSI: ffffffff81cdba7e RDI: ffffc900027dfa0c
RBP: ffffc900027dfaa0 R08: ffffffff8e18217a R09: 0000000000000001
R10: fffff520004fbf34 R11: 000000000008808a R12: ffffc900027dfa00
R13: 0000000000000000 R14: ffff88807b363a00 R15: ffff88806d432200
arch_stack_walk+0x6d/0xe0 arch/x86/kernel/stacktrace.c:27
stack_trace_save+0x8c/0xc0 kernel/stacktrace.c:122
kasan_save_stack+0x1e/0x50 mm/kasan/common.c:38
kasan_set_track+0x21/0x30 mm/kasan/common.c:46
kasan_set_free_info+0x20/0x30 mm/kasan/generic.c:370
____kasan_slab_free mm/kasan/common.c:366 [inline]
____kasan_slab_free mm/kasan/common.c:328 [inline]
__kasan_slab_free+0xff/0x130 mm/kasan/common.c:374
kasan_slab_free include/linux/kasan.h:235 [inline]
slab_free_hook mm/slub.c:1723 [inline]
slab_free_freelist_hook+0x8b/0x1c0 mm/slub.c:1749
slab_free mm/slub.c:3513 [inline]
kmem_cache_free+0x92/0x5e0 mm/slub.c:3529
putname fs/namei.c:270 [inline]
putname+0xfe/0x140 fs/namei.c:256
do_sys_openat2+0x153/0x4d0 fs/open.c:1221
do_sys_open fs/open.c:1228 [inline]
__do_sys_open fs/open.c:1236 [inline]
__se_sys_open fs/open.c:1232 [inline]
__x64_sys_open+0x119/0x1c0 fs/open.c:1232
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x7f88905dd85d
Code: bb 20 00 00 75 10 b8 02 00 00 00 0f 05 48 3d 01 f0 ff ff 73 31 c3 48 83 ec 08 e8 1e f6 ff ff 48 89 04 24 b8 02 00 00 00 0f 05 <48> 8b 3c 24 48 89 c2 e8 67 f6 ff ff 48 89 d0 48 83 c4 08 48 3d 01
RSP: 002b:00007ffcbe748960 EFLAGS: 00000293 ORIG_RAX: 0000000000000002
RAX: ffffffffffffffda RBX: 00007ffcbe748c70 RCX: 00007f88905dd85d
RDX: 00000000000001a0 RSI: 0000000000080042 RDI: 0000563512159060
RBP: 000000000000000d R08: 0000000000000000 R09: 00000000ffffffff
R10: 0000000000000069 R11: 0000000000000293 R12: 00000000ffffffff
R13: 0000563512155040 R14: 00007ffcbe748c30 R15: 0000563512160280
----------------
Code disassembly (best guess):
0: 41 83 ff 1f cmp $0x1f,%r15d
4: 44 89 fe mov %r15d,%esi
7: 0f 87 37 06 00 00 ja 0x644
d: 48 8d 3c b5 40 dd ab lea -0x765422c0(,%rsi,4),%rdi
14: 89
15: 48 ba 00 00 00 00 00 movabs $0xdffffc0000000000,%rdx
1c: fc ff df
1f: 48 89 f9 mov %rdi,%rcx
22: 48 c1 e9 03 shr $0x3,%rcx
26: 0f b6 0c 11 movzbl (%rcx,%rdx,1),%ecx
* 2a: 48 89 fa mov %rdi,%rdx <-- trapping instruction
2d: 83 e2 07 and $0x7,%edx
30: 83 c2 03 add $0x3,%edx
33: 38 ca cmp %cl,%dl
35: 7c 08 jl 0x3f
37: 84 c9 test %cl,%cl
39: 0f 85 bf 05 00 00 jne 0x5fe
3f: 8b .byte 0x8b