syzbot


INFO: task hung in do_read_cache_page (3)
Status: upstream: reported C repro on 2020/01/27 06:32
Reported-by: syzbot+518c54e255b5031adde4@syzkaller.appspotmail.com
First crash: 452d, last: 6d10h

Cause bisection: introduced by (bisect log) :
commit 2da22da573481cc4837e246d0eee4d518b3f715e
Author: Mike Christie <mchristi@redhat.com>
Date: Tue Aug 13 16:39:52 2019 +0000

  nbd: fix zero cmd timeout handling v2

Crash: INFO: task hung in do_read_cache_page (log)
Repro: C syz .config
similar bugs (6):
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
linux-4.19 INFO: task hung in do_read_cache_page (2) 4 10d 73d 0/1 upstream: reported on 2021/02/09 08:22
upstream INFO: task hung in do_read_cache_page 10 1019d 1122d 0/22 auto-closed as invalid on 2019/02/22 10:09
android-49 INFO: task hung in do_read_cache_page 1 1062d 1062d 0/3 auto-closed as invalid on 2019/02/22 13:59
upstream INFO: task hung in do_read_cache_page (2) 1 589d 589d 0/22 auto-closed as invalid on 2019/11/11 08:43
linux-4.19 INFO: task hung in do_read_cache_page C done 2 130d 190d 1/1 fixed on 2021/01/13 11:08
upstream INFO: task can't die in wait_on_page_bit_common C done 4 55d 237d 0/22 upstream: reported C repro on 2020/08/28 22:28

Sample crash report:

Fix bisection attempts:
Manager Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Title
ci-upstream-kasan-gce-root 2020/12/20 14:16 upstream 467f8165 6bfdbe89 .config log report syz C
ci-upstream-kasan-gce-root 2020/10/30 16:56 upstream 07e08873 6bfdbe89 .config log report syz C
ci-upstream-kasan-gce-selinux-root 2020/08/16 00:26 upstream 713eee84 8742a2b9 .config log report syz C
ci-upstream-kasan-gce-selinux-root 2020/06/27 06:05 upstream 1590a2e1 8742a2b9 .config log report syz C
Crashes (34):
Manager Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Title
ci-upstream-kasan-gce-root 2020/09/28 17:34 upstream a1b8638b 6bfdbe89 .config log report syz C
ci-upstream-kasan-gce-root 2020/09/03 21:50 upstream fc3abb53 abf9ba4f .config log report syz C
ci-upstream-kasan-gce-selinux-root 2020/09/02 12:44 upstream b765a32a abf9ba4f .config log report syz C
ci-upstream-kasan-gce-root 2020/09/02 04:25 upstream b765a32a abf9ba4f .config log report syz C
ci-upstream-kasan-gce-selinux-root 2020/08/24 06:18 upstream cb957121 cef5ae68 .config log report syz C
ci-upstream-kasan-gce-root 2020/08/24 04:38 upstream cb957121 cef5ae68 .config log report syz C
ci-upstream-kasan-gce-selinux-root 2020/05/11 05:57 upstream e99332e7 8742a2b9 .config log report syz C
ci-upstream-kasan-gce-smack-root 2021/04/11 16:50 upstream 52e44129 bfeda1b1 .config log report info INFO: task hung in do_read_cache_page
ci-upstream-kasan-gce-selinux-root 2021/04/04 04:00 upstream 57fbdb15 6a81331a .config log report info INFO: task hung in do_read_cache_page
ci-upstream-kasan-gce-selinux-root 2021/03/22 21:16 upstream 84196390 8092f30d .config log report info INFO: task hung in do_read_cache_page
ci-upstream-kasan-gce-selinux-root 2021/03/21 04:03 upstream 812da4d3 17810eae .config log report info INFO: task hung in do_read_cache_page
ci-upstream-kasan-gce-root 2021/03/16 06:20 upstream 1a4431a5 fdb2bb2c .config log report info INFO: task hung in do_read_cache_page
ci-upstream-kasan-gce-root 2021/03/13 17:29 upstream f296bfd5 4a003785 .config log report info INFO: task hung in do_read_cache_page
ci-upstream-kasan-gce-root 2021/02/28 21:25 upstream 5695e516 4c37c133 .config log report info INFO: task hung in do_read_cache_page
ci-upstream-kasan-gce-root 2021/02/26 13:36 upstream 2c87f7a3 76f7fc95 .config log report info INFO: task hung in do_read_cache_page
ci-upstream-kasan-gce-root 2021/01/20 14:00 upstream 45dfb8a5 d4f4eca5 .config log report info INFO: task hung in do_read_cache_page
ci-upstream-linux-next-kasan-gce-root 2021/04/16 23:56 linux-next 1216f02e 7e2b734b .config log report info INFO: task hung in do_read_cache_page
ci-upstream-linux-next-kasan-gce-root 2021/04/05 03:13 linux-next 454c576c 6a81331a .config log report info INFO: task hung in do_read_cache_page
ci-upstream-linux-next-kasan-gce-root 2021/03/25 20:07 linux-next b4f20b70 6a383ecf .config log report info INFO: task hung in do_read_cache_page
ci-upstream-linux-next-kasan-gce-root 2021/03/24 13:39 linux-next 20f1b5f9 607e3baf .config log report info INFO: task hung in do_read_cache_page
ci-upstream-linux-next-kasan-gce-root 2021/03/15 20:30 linux-next fa80526a fdb2bb2c .config log report info INFO: task hung in do_read_cache_page
ci-upstream-linux-next-kasan-gce-root 2021/01/31 23:57 linux-next b01f250d fc9fd31e .config log report info INFO: task hung in do_read_cache_page
ci-upstream-kasan-gce-selinux-root 2021/01/14 06:50 upstream 65f0d241 269d24e8 .config log report info
ci-upstream-kasan-gce-smack-root 2020/11/20 06:12 upstream 131ad0b6 0767f13f .config log report info
ci-upstream-kasan-gce-root 2020/11/20 05:58 upstream 3494d588 0767f13f .config log report info
ci-upstream-kasan-gce-root 2020/09/30 16:33 upstream 02de58b2 8516f6d3 .config log report info
ci-upstream-kasan-gce-root 2020/09/07 19:43 upstream f4d51dff abf9ba4f .config log report
ci-upstream-kasan-gce-selinux-root 2020/07/11 05:11 upstream a581387e 18d18b59 .config log report
ci-upstream-kasan-gce-selinux-root 2020/01/26 13:48 upstream 2821e26f f4e7270e .config log report
ci-upstream-linux-next-kasan-gce-root 2020/11/20 08:22 linux-next 95065cb5 0767f13f .config log report info
ci-upstream-linux-next-kasan-gce-root 2020/07/17 00:03 linux-next 4c43049f 54b3c45e .config log report
ci-upstream-linux-next-kasan-gce-root 2020/07/16 14:23 linux-next ca0e494a f3bec699 .config log report
ci-upstream-linux-next-kasan-gce-root 2020/07/12 09:07 linux-next d31958b3 115e1930 .config log report
ci-upstream-linux-next-kasan-gce-root 2020/06/30 08:02 linux-next 36e3135d a2cdad9d .config log report