syzbot


INFO: task hung in lo_ioctl
Status: fixed on 2019/03/06 07:43
Reported-by: syzbot+abdba5bc6de135d7622f00756da97998425b6de5@syzkaller.appspotmail.com
Fix commit: 04906b2f542c blockdev: Fix livelocks on loop device
First crash: 1422d, last: 1296d
duplicates (10):
Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
INFO: task hung in __blkdev_direct_IO_simple 365 1236d 1413d 0/22 closed as dup on 2017/12/12 16:44
INFO: task hung in write_cache_pages 65 1042d 1413d 0/22 closed as dup on 2017/12/12 16:30
INFO: task hung in iterate_bdevs 104 1292d 1413d 0/22 closed as dup on 2017/12/12 16:45
INFO: task hung in pagecache_get_page 144 1099d 1417d 0/22 closed as dup on 2017/12/12 16:52
INFO: task hung in truncate_inode_pages_range 151 1078d 1413d 0/22 closed as dup on 2017/12/12 16:49
INFO: task hung in submit_bio_wait 313 1363d 1413d 0/22 closed as dup on 2017/12/12 16:50
INFO: task hung in blkdev_issue_flush 12 982d 1285d 0/22 closed as dup on 2019/02/16 05:19
INFO: task hung in blkdev_reread_part 4 1302d 1414d 0/22 closed as dup on 2017/12/12 16:29
INFO: task hung in blk_mq_freeze_queue_wait 608 1355d 1413d 0/22 closed as dup on 2017/12/12 16:51
INFO: task hung in wait_on_page_bit_common 800 1355d 1417d 0/22 closed as dup on 2017/12/12 16:52
similar bugs (4):
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
android-414 INFO: task hung in lo_ioctl syz 498 904d 926d 0/1 public: reported syz repro on 2019/04/10 16:14
linux-4.14 INFO: task hung in lo_ioctl 127 239d 925d 0/1 auto-closed as invalid on 2021/06/25 19:54
android-44 INFO: task hung in lo_ioctl C 469 719d 925d 0/2 public: reported C repro on 2019/04/12 00:00
android-49 INFO: task hung in lo_ioctl C 1828 725d 925d 0/3 public: reported C repro on 2019/04/12 00:00

Sample crash report:

Crashes (47):
Manager Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Title
ci-upstream-kasan-gce-root 2018/04/05 18:08 upstream 06dd3dfeea60 5e1ccffc .config log report
ci-upstream-kasan-gce-root 2018/04/04 06:03 upstream f2d285669aae 676bd07e .config log report
ci-upstream-kasan-gce 2018/04/03 13:50 upstream 642e7fd23353 676bd07e .config log report
ci-upstream-kasan-gce 2018/04/01 17:55 upstream 10b84daddbec dc889257 .config log report
ci-upstream-kasan-gce 2018/03/31 05:13 upstream 9dd2326890d8 8fbce0e4 .config log report
ci-upstream-kasan-gce 2018/03/30 07:58 upstream c2a9838452a4 d47f0ed6 .config log report
ci-upstream-kasan-gce 2018/03/27 14:04 upstream 3eb2ce825ea1 bf5e585c .config log report
ci-upstream-kasan-gce 2018/03/24 01:23 upstream 99fec39e7725 2e9d9054 .config log report
ci-upstream-kasan-gce 2018/02/06 01:20 upstream 2deb41b24532 a1bc9d40 .config log report
ci-upstream-kasan-gce 2018/01/19 02:17 upstream dda3e15231b3 161c1d64 .config log report
ci-upstream-kasan-gce 2018/01/01 13:25 upstream 30a7acd57389 00193447 .config log report
ci-upstream-kasan-gce 2017/12/14 21:59 upstream d455df0bcc00 ac20b98c .config log report
ci-upstream-kasan-gce 2017/12/09 06:10 upstream 3625de4b2872 5ad0ce95 .config log report
ci-upstream-kasan-gce 2017/12/06 16:46 upstream 328b4ed93b69 0796857b .config log report
ci-upstream-kasan-gce 2017/12/04 16:34 upstream ae64f9bd1d36 48359b97 .config log report
ci-upstream-kasan-gce 2017/12/02 05:52 upstream a0651c7fa2c0 48359b97 .config log report
ci-upstream-kasan-gce-386 2018/04/05 00:17 upstream f2d285669aae 676bd07e .config log report
ci-upstream-kasan-gce-386 2018/04/02 18:49 upstream 0adb32858b0b 676bd07e .config log report
ci-upstream-kasan-gce-386 2018/03/30 19:46 upstream 9dd2326890d8 8fbce0e4 .config log report
ci-upstream-kasan-gce-386 2018/03/30 11:59 upstream c2a9838452a4 d47f0ed6 .config log report
ci-upstream-kasan-gce-386 2018/03/26 04:17 upstream cb6416592bc2 e033c1f1 .config log report
ci-upstream-kasan-gce-386 2018/01/27 12:19 upstream c4e0ca7fa241 1d18b112 .config log report
ci-upstream-kasan-gce-386 2018/01/05 22:02 upstream 89876f275e8d 00193447 .config log report
ci-upstream-kasan-gce-386 2017/12/12 07:36 upstream a638349bf6c2 da131727 .config log report
ci-upstream-kasan-gce-386 2017/12/10 00:14 upstream 4ded3bec65a0 5ad0ce95 .config log report
ci-upstream-kasan-gce-386 2017/12/08 13:28 upstream 968edbd93c0c b0fa969c .config log report
ci-upstream-kasan-gce-386 2017/12/06 03:15 upstream 328b4ed93b69 0796857b .config log report
ci-upstream-mmots-kasan-gce 2018/01/18 21:28 mmots ce3c209f6733 161c1d64 .config log report
ci-upstream-mmots-kasan-gce 2018/01/16 04:03 mmots ce3c209f6733 e17f4a5d .config log report
ci-upstream-next-kasan-gce 2018/01/12 05:54 linux-next 3e53c7415294 9dc808a6 .config log report
ci-upstream-mmots-kasan-gce 2018/01/06 15:29 mmots 69eed2290e1d 053171ea .config log report
ci-upstream-next-kasan-gce 2018/01/05 08:58 linux-next 990b6a07d18c 00193447 .config log report
ci-upstream-mmots-kasan-gce 2017/12/28 15:05 mmots 37759fa6d0fa 7d240098 .config log report
ci-upstream-next-kasan-gce 2017/12/10 02:03 linux-next ad4dac17f9d5 5ad0ce95 .config log report
ci-upstream-next-kasan-gce 2017/12/07 20:40 linux-next e40fd8d6b4d9 5d643f8e .config log report
ci-upstream-next-kasan-gce 2017/12/06 05:03 linux-next d5c52866f560 0796857b .config log report
ci-upstream-next-kasan-gce 2017/12/04 16:34 linux-next 7cc61a0a562c 48359b97 .config log report
ci-upstream-next-kasan-gce 2017/12/03 06:28 linux-next fb20eb9d798d 16668351 .config log report
ci-upstream-mmots-kasan-gce 2017/12/02 23:49 mmots 4131d5166185 29b0fd90 .config log report
ci-upstream-mmots-kasan-gce 2017/12/02 18:28 mmots 4131d5166185 29b0fd90 .config log report
ci-upstream-next-kasan-gce 2017/12/02 17:40 linux-next fb20eb9d798d 16668351 .config log report
ci-upstream-next-kasan-gce 2017/12/02 17:01 linux-next fb20eb9d798d 16668351 .config log report
ci-upstream-next-kasan-gce 2017/12/02 14:07 linux-next fb20eb9d798d 16668351 .config log report
ci-upstream-next-kasan-gce 2017/12/02 02:57 linux-next fb20eb9d798d 16668351 .config log report
ci-upstream-mmots-kasan-gce 2017/12/02 01:45 mmots 4131d5166185 29b0fd90 .config log report
ci-upstream-mmots-kasan-gce 2017/12/02 00:31 mmots 4131d5166185 29b0fd90 .config log report
ci-upstream-next-kasan-gce 2017/12/01 09:06 linux-next fb20eb9d798d 16668351 .config log report