INFO: task can't die in submit_bio_wait

Status: auto-closed as invalid on 2021/10/30 22:05
Subsystems: block
[Documentation on labels]
Reported-by: syzbot+4a3e6acc53d47f048291@syzkaller.appspotmail.com
First crash: 1806d, last: 1806d
▶ ▼ Similar bugs (1)
Kernel Title Rank 🛈 Repro Cause bisect Fix bisect Count Last Reported Patched Status
upstream INFO: task can't die in submit_bio_wait (2) block 1 syz, C error 3 1640d 1640d 0/29 upstream: reported C repro on 2022/02/14 12:41

Sample crash report:
INFO: task syz-executor.5:22740 can't die for more than 143 seconds.
task:syz-executor.5  state:D stack:24568 pid:22740 ppid:  7049 flags:0x00004004
Call Trace:
 context_switch kernel/sched/core.c:4955 [inline]
 __schedule+0x940/0x26f0 kernel/sched/core.c:6302
 schedule+0xd3/0x270 kernel/sched/core.c:6381
 schedule_timeout+0x14a/0x2a0 kernel/time/timer.c:1881
 io_schedule_timeout+0xcb/0x140 kernel/sched/core.c:8392
 do_wait_for_common kernel/sched/completion.c:85 [inline]
 __wait_for_common kernel/sched/completion.c:106 [inline]
 wait_for_common_io kernel/sched/completion.c:123 [inline]
 wait_for_completion_io_timeout+0x171/0x280 kernel/sched/completion.c:191
 submit_bio_wait+0x158/0x230 block/bio.c:1253
 blkdev_issue_flush+0xd6/0x130 block/blk-flush.c:458

Crashes (1):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2021/08/31 22:04 linux-next 52c7b727581f 7eb7e152 .config console log report info ci-upstream-linux-next-kasan-gce-root INFO: task can't die in submit_bio_wait
* Struck through repros no longer work on HEAD.