INFO: task syz-executor.0:10887 can't die for more than 143 seconds.
task:syz-executor.0 state:D stack:24648 pid:10887 ppid: 6535 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:4987 [inline]
__schedule+0xa9a/0x4940 kernel/sched/core.c:6268
schedule+0xd2/0x260 kernel/sched/core.c:6341
__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
mpage_bio_submit fs/mpage.c:66 [inline]
mpage_readahead+0x589/0x750 fs/mpage.c:393
read_pages+0x1e4/0xfa0 mm/readahead.c:129
page_cache_ra_unbounded+0x64b/0x940 mm/readahead.c:238
do_page_cache_ra mm/readahead.c:268 [inline]
ondemand_readahead+0x594/0x1090 mm/readahead.c:551
page_cache_async_ra mm/readahead.c:608 [inline]
page_cache_async_ra+0x2e1/0x3f0 mm/readahead.c:583
page_cache_async_readahead include/linux/pagemap.h:1052 [inline]
filemap_readahead mm/filemap.c:2531 [inline]
filemap_get_pages+0x6f1/0x1be0 mm/filemap.c:2572
filemap_read+0x315/0xeb0 mm/filemap.c:2642
generic_file_read_iter+0x3b6/0x5a0 mm/filemap.c:2792
blkdev_read_iter+0xf8/0x1d0 block/fops.c:583
call_read_iter include/linux/fs.h:2156 [inline]
generic_file_splice_read+0x453/0x6d0 fs/splice.c:311
do_splice_to+0x1bf/0x250 fs/splice.c:796
splice_direct_to_actor+0x2c2/0x8c0 fs/splice.c:870
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: 0033:0x7f0fd77ddae9
RSP: 002b:00007f0fd4d53188 EFLAGS: 00000246 ORIG_RAX: 0000000000000028
RAX: ffffffffffffffda RBX: 00007f0fd78f0f60 RCX: 00007f0fd77ddae9
RDX: 0000000000000000 RSI: 0000000000000004 RDI: 0000000000000004
RBP: 00007f0fd7837f6d R08: 0000000000000000 R09: 0000000000000000
R10: 0000000024002da6 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffd930d7b4f R14: 00007f0fd4d53300 R15: 0000000000022000
INFO: task syz-executor.0:10887 blocked for more than 143 seconds.
Not tainted 5.16.0-rc1-next-20211118-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.0 state:D stack:24648 pid:10887 ppid: 6535 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:4987 [inline]
__schedule+0xa9a/0x4940 kernel/sched/core.c:6268
schedule+0xd2/0x260 kernel/sched/core.c:6341
__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
mpage_bio_submit fs/mpage.c:66 [inline]
mpage_readahead+0x589/0x750 fs/mpage.c:393
read_pages+0x1e4/0xfa0 mm/readahead.c:129
page_cache_ra_unbounded+0x64b/0x940 mm/readahead.c:238
do_page_cache_ra mm/readahead.c:268 [inline]
ondemand_readahead+0x594/0x1090 mm/readahead.c:551
page_cache_async_ra mm/readahead.c:608 [inline]
page_cache_async_ra+0x2e1/0x3f0 mm/readahead.c:583
page_cache_async_readahead include/linux/pagemap.h:1052 [inline]
filemap_readahead mm/filemap.c:2531 [inline]
filemap_get_pages+0x6f1/0x1be0 mm/filemap.c:2572
filemap_read+0x315/0xeb0 mm/filemap.c:2642
generic_file_read_iter+0x3b6/0x5a0 mm/filemap.c:2792
blkdev_read_iter+0xf8/0x1d0 block/fops.c:583
call_read_iter include/linux/fs.h:2156 [inline]
generic_file_splice_read+0x453/0x6d0 fs/splice.c:311
do_splice_to+0x1bf/0x250 fs/splice.c:796
splice_direct_to_actor+0x2c2/0x8c0 fs/splice.c:870
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: 0033:0x7f0fd77ddae9
RSP: 002b:00007f0fd4d53188 EFLAGS: 00000246 ORIG_RAX: 0000000000000028
RAX: ffffffffffffffda RBX: 00007f0fd78f0f60 RCX: 00007f0fd77ddae9
RDX: 0000000000000000 RSI: 0000000000000004 RDI: 0000000000000004
RBP: 00007f0fd7837f6d R08: 0000000000000000 R09: 0000000000000000
R10: 0000000024002da6 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffd930d7b4f R14: 00007f0fd4d53300 R15: 0000000000022000
INFO: task syz-executor.0:10895 can't die for more than 144 seconds.
task:syz-executor.0 state:D stack:29072 pid:10895 ppid: 6535 flags:0x00000004
Call Trace:
context_switch kernel/sched/core.c:4987 [inline]
__schedule+0xa9a/0x4940 kernel/sched/core.c:6268
schedule+0xd2/0x260 kernel/sched/core.c:6341
blk_mq_freeze_queue_wait+0x112/0x160 block/blk-mq.c:178
__loop_clr_fd+0x1ae/0x1070 drivers/block/loop.c:1122
loop_clr_fd drivers/block/loop.c:1237 [inline]
lo_ioctl+0x398/0x17c0 drivers/block/loop.c:1562
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: 0033:0x7f0fd77ddae9
RSP: 002b:00007f0fd4d32188 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007f0fd78f1020 RCX: 00007f0fd77ddae9
RDX: 0000000000000000 RSI: 0000000000004c01 RDI: 0000000000000004
RBP: 00007f0fd7837f6d R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffd930d7b4f R14: 00007f0fd4d32300 R15: 0000000000022000
INFO: task syz-executor.0:10895 blocked for more than 144 seconds.
Not tainted 5.16.0-rc1-next-20211118-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.0 state:D stack:29072 pid:10895 ppid: 6535 flags:0x00000004
Call Trace:
context_switch kernel/sched/core.c:4987 [inline]
__schedule+0xa9a/0x4940 kernel/sched/core.c:6268
schedule+0xd2/0x260 kernel/sched/core.c:6341
blk_mq_freeze_queue_wait+0x112/0x160 block/blk-mq.c:178
__loop_clr_fd+0x1ae/0x1070 drivers/block/loop.c:1122
loop_clr_fd drivers/block/loop.c:1237 [inline]
lo_ioctl+0x398/0x17c0 drivers/block/loop.c:1562
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: 0033:0x7f0fd77ddae9
RSP: 002b:00007f0fd4d32188 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007f0fd78f1020 RCX: 00007f0fd77ddae9
RDX: 0000000000000000 RSI: 0000000000004c01 RDI: 0000000000000004
RBP: 00007f0fd7837f6d R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffd930d7b4f R14: 00007f0fd4d32300 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/26:
#0: ffffffff8bb83ba0 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x53/0x260 kernel/locking/lockdep.c:6458
1 lock held by in:imklog/6224:
#0: ffff88807a92f4f0 (&f->f_pos_lock){+.+.}-{3:3}, at: __fdget_pos+0xe9/0x100 fs/file.c:990
2 locks held by systemd-udevd/9898:
#0: ffff88801ab16918 (&disk->open_mutex){+.+.}-{3:3}, at: blkdev_get_by_dev.part.0+0x9b/0xb50 block/bdev.c:819
#1: ffff88801ab12360 (&lo->lo_mutex){+.+.}-{3:3}, at: lo_open+0x75/0x120 drivers/block/loop.c:1733
1 lock held by syz-executor.0/10887:
#0: ffff888140895bc8 (mapping.invalidate_lock#2){++++}-{3:3}, at: filemap_invalidate_lock_shared include/linux/fs.h:838 [inline]
#0: ffff888140895bc8 (mapping.invalidate_lock#2){++++}-{3:3}, at: page_cache_ra_unbounded+0x1b3/0x940 mm/readahead.c:194
1 lock held by syz-executor.0/10895:
#0: ffff88801ab12360 (&lo->lo_mutex){+.+.}-{3:3}, at: __loop_clr_fd+0x7a/0x1070 drivers/block/loop.c:1106
=============================================
NMI backtrace for cpu 1
CPU: 1 PID: 26 Comm: khungtaskd Not tainted 5.16.0-rc1-next-20211118-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:111
nmi_trigger_cpumask_backtrace+0x1b3/0x230 lib/nmi_backtrace.c:62
trigger_all_cpu_backtrace include/linux/nmi.h:146 [inline]
check_hung_uninterruptible_tasks kernel/hung_task.c:254 [inline]
watchdog+0xcb7/0xed0 kernel/hung_task.c:339
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: 2961 Comm: systemd-journal Not tainted 5.16.0-rc1-next-20211118-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:__sanitizer_cov_trace_pc+0x37/0x60 kernel/kcov.c:200
Code: 81 e1 00 01 00 00 65 48 8b 14 25 40 70 02 00 a9 00 01 ff 00 74 0e 85 c9 74 35 8b 82 ac 15 00 00 85 c0 74 2b 8b 82 88 15 00 00 <83> f8 02 75 20 48 8b 8a 90 15 00 00 8b 92 8c 15 00 00 48 8b 01 48
RSP: 0018:ffffc90001aafce8 EFLAGS: 00000246
RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000
RDX: ffff88807aeb8000 RSI: ffffffff83d61619 RDI: 0000000000000003
RBP: ffffffffffffffff R08: 0000000000000000 R09: 0000000000000000
R10: ffffffff83d61608 R11: 0000000000000000 R12: 0000000000000001
R13: ffffffffffffffff R14: 0000000000000000 R15: ffffffffffffffff
FS: 00007f024b1338c0(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f02485ae000 CR3: 0000000022c08000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
_find_next_bit+0xd9/0x260 lib/find_bit.c:51
find_next_zero_bit include/linux/find.h:102 [inline]
find_next_fd fs/file.c:459 [inline]
alloc_fd+0x267/0x670 fs/file.c:485
do_sys_openat2+0x134/0x4d0 fs/open.c:1210
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: 0033:0x7f024a6c2840
Code: 73 01 c3 48 8b 0d 68 77 20 00 f7 d8 64 89 01 48 83 c8 ff c3 66 0f 1f 44 00 00 83 3d 89 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
RSP: 002b:00007ffc6b5b83c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000002
RAX: ffffffffffffffda RBX: 00007ffc6b5b86d0 RCX: 00007f024a6c2840
RDX: 00000000000001a0 RSI: 0000000000080042 RDI: 000055b80a9cb780
RBP: 000000000000000d R08: 00000000000001e0 R09: 00000000ffffffff
R10: 0000000000000069 R11: 0000000000000246 R12: 00000000ffffffff
R13: 000055b80a9c7040 R14: 00007ffc6b5b8690 R15: 000055b80a9d4020
----------------
Code disassembly (best guess):
0: 81 e1 00 01 00 00 and $0x100,%ecx
6: 65 48 8b 14 25 40 70 mov %gs:0x27040,%rdx
d: 02 00
f: a9 00 01 ff 00 test $0xff0100,%eax
14: 74 0e je 0x24
16: 85 c9 test %ecx,%ecx
18: 74 35 je 0x4f
1a: 8b 82 ac 15 00 00 mov 0x15ac(%rdx),%eax
20: 85 c0 test %eax,%eax
22: 74 2b je 0x4f
24: 8b 82 88 15 00 00 mov 0x1588(%rdx),%eax
* 2a: 83 f8 02 cmp $0x2,%eax <-- trapping instruction
2d: 75 20 jne 0x4f
2f: 48 8b 8a 90 15 00 00 mov 0x1590(%rdx),%rcx
36: 8b 92 8c 15 00 00 mov 0x158c(%rdx),%edx
3c: 48 8b 01 mov (%rcx),%rax
3f: 48 rex.W