syzbot


INFO: task hung in sync_inodes_sb (4)
Status: upstream: reported C repro on 2020/11/21 04:55
Reported-by: syzbot+7d50f1e54a12ba3aeae2@syzkaller.appspotmail.com
First crash: 305d, last: 47d

Cause bisection: introduced by (bisect log) :
commit c68df2e7be0c1238ea3c281fd744a204ef3b15a0
Author: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Date: Thu Sep 15 13:30:02 2016 +0000

  mac80211: allow using AP_LINK_PS with mac80211-generated TIM IE

Crash: general protection fault in batadv_iv_ogm_queue_add (log)
Repro: C syz .config

Fix bisection: the fix commit could be any of (bisect log):
  34816d20f173 Merge tag 'gfs2-v5.10-rc5-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/gfs2/linux-gfs2
  f55966571d5e Merge tag 'drm-next-2021-07-08-1' of git://anongit.freedesktop.org/drm/drm
similar bugs (8):
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
upstream INFO: task hung in sync_inodes_sb (2) 4 880d 897d 0/22 auto-closed as invalid on 2019/10/19 16:22
upstream INFO: task hung in sync_inodes_sb (3) C done 6 623d 631d 16/22 fixed on 2020/02/14 01:19
upstream INFO: task hung in sync_inodes_sb 58 977d 1215d 0/22 closed as dup on 2018/09/08 15:37
linux-4.14 INFO: task hung in sync_inodes_sb 1 592d 592d 0/1 auto-closed as invalid on 2020/06/02 17:26
android-49 INFO: task hung in sync_inodes_sb 11 1117d 1196d 0/3 auto-closed as invalid on 2019/02/24 06:19
android-49 INFO: task hung in sync_inodes_sb (2) 2 706d 868d 0/3 auto-closed as invalid on 2020/02/10 00:14
linux-4.14 INFO: task hung in sync_inodes_sb (2) C 6 28d 253d 0/1 upstream: reported C repro on 2021/01/07 19:48
linux-4.19 INFO: task hung in sync_inodes_sb C 2 27d 344d 0/1 upstream: reported C repro on 2020/10/09 07:19
Patch testing requests:
Created Duration User Patch Repo Result
2021/04/20 03:11 11m ducheng2@gmail.com upstream report log

Sample crash report:

Crashes (4):
Manager Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Title
ci-upstream-kasan-gce-root 2020/12/04 02:11 upstream 34816d20f173 e6b0d314 .config log report syz C
ci-upstream-linux-next-kasan-gce-root 2020/11/17 04:47 linux-next 034307507118 1bf9a662 .config log report syz C
ci-upstream-kasan-gce-selinux-root 2021/02/06 20:50 upstream 1e0d27fce010 0655e081 .config log report info INFO: task hung in sync_inodes_sb
ci-upstream-linux-next-kasan-gce-root 2021/08/01 21:48 linux-next 8d4b477da1a8 6c236867 .config log report info INFO: task hung in sync_inodes_sb