syzbot


INFO: task hung in bch2_readahead

Status: upstream: reported on 2024/05/20 07:12
Subsystems: bcachefs
[Documentation on labels]
Reported-by: syzbot+a6060114362257e9798a@syzkaller.appspotmail.com
First crash: 43d, last: 21h34m
Discussions (2)
Title Replies (including bot) Last reply
[syzbot] Monthly bcachefs report (Jun 2024) 0 (1) 2024/06/11 08:27
[syzbot] [bcachefs?] INFO: task hung in bch2_readahead 0 (1) 2024/05/20 07:12

Sample crash report:
INFO: task syz-executor.4:7786 blocked for more than 143 seconds.
      Not tainted 6.10.0-rc3-syzkaller-00044-g2ccbdf43d5e7 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.4  state:D stack:15056 pid:7786  tgid:7784  ppid:7064   flags:0x00004006
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5408 [inline]
 __schedule+0x1796/0x49d0 kernel/sched/core.c:6745
 __schedule_loop kernel/sched/core.c:6822 [inline]
 schedule+0x14b/0x320 kernel/sched/core.c:6837
 __bch2_two_state_lock+0x171/0x200 fs/bcachefs/two_state_shared_lock.c:7
 bch2_two_state_lock fs/bcachefs/two_state_shared_lock.h:56 [inline]
 bch2_readahead+0xcad/0x1860 fs/bcachefs/fs-io-buffered.c:269
 read_pages+0x17e/0x840 mm/readahead.c:160
 page_cache_ra_order+0xa4f/0xcb0 mm/readahead.c:535
 filemap_readahead mm/filemap.c:2504 [inline]
 filemap_get_pages+0x743/0x2090 mm/filemap.c:2545
 filemap_splice_read+0x654/0xeb0 mm/filemap.c:2894

Crashes (209):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2024/06/17 15:14 upstream 2ccbdf43d5e7 1f11cfd7 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs INFO: task hung in bch2_readahead
2024/06/16 12:40 upstream 2ccbdf43d5e7 f429ab00 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs INFO: task hung in bch2_readahead
2024/06/16 03:13 upstream 2ccbdf43d5e7 f429ab00 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs INFO: task hung in bch2_readahead
2024/06/13 17:04 upstream 2ccbdf43d5e7 2aa5052f .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-root INFO: task hung in bch2_readahead
2024/06/13 04:27 upstream 2ccbdf43d5e7 2aa5052f .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs INFO: task hung in bch2_readahead
2024/06/13 02:29 upstream 2ccbdf43d5e7 2aa5052f .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs INFO: task hung in bch2_readahead
2024/06/13 00:05 upstream cea2a26553ac f815599d .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs INFO: task hung in bch2_readahead
2024/06/12 22:21 upstream cea2a26553ac f815599d .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs INFO: task hung in bch2_readahead
2024/06/12 19:59 upstream cea2a26553ac f815599d .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs INFO: task hung in bch2_readahead
2024/06/12 11:35 upstream 2ef5971ff345 f815599d .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs INFO: task hung in bch2_readahead
2024/06/12 06:58 upstream 2ef5971ff345 4d75f4f7 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs INFO: task hung in bch2_readahead
2024/06/11 18:57 upstream 83a7eefedc9b 4d75f4f7 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs INFO: task hung in bch2_readahead
2024/06/11 14:10 upstream 83a7eefedc9b c7d7d815 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-smack-root INFO: task hung in bch2_readahead
2024/06/11 05:52 upstream 83a7eefedc9b b7d9eb04 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs INFO: task hung in bch2_readahead
2024/06/11 00:21 upstream 83a7eefedc9b 048c640a .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs INFO: task hung in bch2_readahead
2024/06/10 16:12 upstream 83a7eefedc9b 048c640a .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs INFO: task hung in bch2_readahead
2024/06/10 13:04 upstream 83a7eefedc9b 82c05ab8 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs INFO: task hung in bch2_readahead
2024/06/10 11:36 upstream 83a7eefedc9b 82c05ab8 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs INFO: task hung in bch2_readahead
2024/06/10 09:31 upstream 83a7eefedc9b 82c05ab8 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs INFO: task hung in bch2_readahead
2024/06/10 05:40 upstream 83a7eefedc9b 82c05ab8 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-root INFO: task hung in bch2_readahead
2024/06/10 03:59 upstream 83a7eefedc9b 82c05ab8 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs INFO: task hung in bch2_readahead
2024/06/10 02:43 upstream 771ed66105de 82c05ab8 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs INFO: task hung in bch2_readahead
2024/06/09 22:53 upstream 771ed66105de 82c05ab8 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs INFO: task hung in bch2_readahead
2024/06/09 19:14 upstream 771ed66105de 82c05ab8 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs INFO: task hung in bch2_readahead
2024/06/09 17:46 upstream 771ed66105de 82c05ab8 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs INFO: task hung in bch2_readahead
2024/06/09 16:24 upstream 771ed66105de 82c05ab8 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs INFO: task hung in bch2_readahead
2024/06/09 16:15 upstream 771ed66105de 82c05ab8 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs INFO: task hung in bch2_readahead
2024/06/09 14:00 upstream 771ed66105de 82c05ab8 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs INFO: task hung in bch2_readahead
2024/06/09 10:51 upstream 061d1af7b030 82c05ab8 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs INFO: task hung in bch2_readahead
2024/06/09 09:33 upstream 061d1af7b030 82c05ab8 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-root INFO: task hung in bch2_readahead
2024/06/09 09:21 upstream 771ed66105de 82c05ab8 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root INFO: task hung in bch2_readahead
2024/06/08 21:47 upstream dc772f8237f9 82c05ab8 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs INFO: task hung in bch2_readahead
2024/06/08 12:42 upstream dc772f8237f9 82c05ab8 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs INFO: task hung in bch2_readahead
2024/06/08 11:27 upstream dc772f8237f9 82c05ab8 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs INFO: task hung in bch2_readahead
2024/06/08 09:45 upstream 96e09b8f8166 82c05ab8 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs INFO: task hung in bch2_readahead
2024/06/08 08:00 upstream 96e09b8f8166 82c05ab8 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs INFO: task hung in bch2_readahead
2024/06/08 02:21 upstream 96e09b8f8166 82c05ab8 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs INFO: task hung in bch2_readahead
2024/06/08 01:21 upstream 96e09b8f8166 82c05ab8 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs INFO: task hung in bch2_readahead
2024/06/07 17:53 upstream 8a92980606e3 121701b6 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs INFO: task hung in bch2_readahead
2024/06/07 15:35 upstream 8a92980606e3 121701b6 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-smack-root INFO: task hung in bch2_readahead
2024/06/07 12:59 upstream 8a92980606e3 121701b6 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs INFO: task hung in bch2_readahead
2024/06/07 04:06 upstream d30d0e49da71 121701b6 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs INFO: task hung in bch2_readahead
2024/06/07 01:58 upstream d30d0e49da71 121701b6 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs INFO: task hung in bch2_readahead
2024/06/07 00:19 upstream d30d0e49da71 121701b6 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs INFO: task hung in bch2_readahead
2024/06/06 18:31 upstream d30d0e49da71 121701b6 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs INFO: task hung in bch2_readahead
2024/06/06 17:09 upstream 2df0193e62cf 121701b6 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs INFO: task hung in bch2_readahead
2024/06/06 15:26 upstream 2df0193e62cf 121701b6 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs INFO: task hung in bch2_readahead
2024/06/06 10:00 upstream 2df0193e62cf 121701b6 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs INFO: task hung in bch2_readahead
2024/06/06 08:14 upstream 2df0193e62cf 121701b6 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs INFO: task hung in bch2_readahead
2024/06/06 07:07 upstream 2df0193e62cf 121701b6 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs INFO: task hung in bch2_readahead
2024/05/16 13:15 upstream 8c06da67d0bd ef5d53ed .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs INFO: task hung in bch2_readahead
2024/05/16 07:05 upstream 8c06da67d0bd ef5d53ed .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs INFO: task hung in bch2_readahead
2024/05/05 14:07 upstream 7367539ad4b0 610f2a54 .config console log report info [disk image] [vmlinux] [kernel image] ci2-upstream-fs INFO: task hung in bch2_readahead
2024/05/12 06:55 linux-next 75fa778d74b7 9026e142 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root INFO: task hung in bch2_readahead
2024/06/11 22:42 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci 8867bbd4a056 c7d7d815 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 INFO: task hung in bch2_readahead
* Struck through repros no longer work on HEAD.