syzbot


WARNING in io_uring_flush
Status: fixed on 2021/03/10 01:49
Reported-by: syzbot+a32b546d58dde07875a1@syzkaller.appspotmail.com
Fix commit: 4325cb498cb7 io_uring: fix uring_flush in exit_files() warning
First crash: 327d, last: 317d

Cause bisection: introduced by (bisect log) [merge commit]:
commit 787fec8ac15cc693b9a7bc1b4a338b92483d993c
Author: Linus Torvalds <torvalds@linux-foundation.org>
Date: Fri Dec 18 01:46:34 2020 +0000

  Merge tag 'for-linus-5.11-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rw/ubifs

Crash: INFO: task hung in io_sq_thread_stop (log)
Repro: C syz .config
Patch testing requests:
Created Duration User Patch Repo Result
2021/01/16 19:06 17m axboe@kernel.dk git://git.kernel.dk/linux-block io_uring-5.11 OK

Sample crash report:

Crashes (10):
Manager Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Title
ci-upstream-kasan-gce-root 2021/01/16 14:02 upstream 1d94330a437a 65a7a854 .config log report syz C
ci-upstream-kasan-gce-root 2021/01/25 01:33 upstream e68061375f79 52e37319 .config log report info WARNING in io_uring_flush
ci-upstream-kasan-gce-smack-root 2021/01/24 10:18 upstream e1ae4b0be158 52e37319 .config log report info WARNING in io_uring_flush
ci-upstream-kasan-gce-smack-root 2021/01/22 01:28 upstream 9791581c049c d4f4eca5 .config log report info WARNING in io_uring_flush
ci-upstream-kasan-gce-root 2021/01/20 18:35 upstream 45dfb8a5659a d4f4eca5 .config log report info WARNING in io_uring_flush
ci-upstream-kasan-gce-smack-root 2021/01/19 14:45 upstream 1e2a199f6ccd 63631df1 .config log report info WARNING in io_uring_flush
ci-upstream-kasan-gce-root 2021/01/17 22:30 upstream a1339d6355ac 813be542 .config log report info WARNING in io_uring_flush
ci-upstream-kasan-gce-smack-root 2021/01/17 01:16 upstream 1d94330a437a 65a7a854 .config log report info
ci-upstream-kasan-gce-root 2021/01/16 13:38 upstream 1d94330a437a 65a7a854 .config log report info
ci-upstream-kasan-gce-selinux-root 2021/01/15 15:45 upstream 146620506274 65a7a854 .config log report info