syzbot


INFO: rcu detected stall in addrconf_dad_work
Status: fixed on 2019/12/07 19:18
Reported-by: syzbot+16f5801e71ba218f3bd3@syzkaller.appspotmail.com
Fix commit: a9e91767 sch_hhf: ensure quantum and hhf_non_hh_weight are non-zero
First crash: 613d, last: 602d

Fix bisection: fixed by (bisect log) :
commit a9e91767b921ee196ab693fa13a81b278f53ddac
Author: Cong Wang <xiyou.wangcong@gmail.com>
Date: Sun Sep 8 20:40:51 2019 +0000

  sch_hhf: ensure quantum and hhf_non_hh_weight are non-zero

similar bugs (7):
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
upstream INFO: rcu detected stall in addrconf_dad_work (5) C done 1 11d 247d 0/22 upstream: reported C repro on 2020/09/07 15:59
upstream INFO: rcu detected stall in addrconf_dad_work (4) 8 490d 491d 0/22 closed as invalid on 2020/01/09 08:13
upstream INFO: rcu detected stall in addrconf_dad_work (3) 6 491d 491d 0/22 closed as invalid on 2020/01/08 05:23
linux-4.14 INFO: rcu detected stall in addrconf_dad_work C done 18 607d 614d 1/1 fixed on 2019/12/06 10:33
upstream INFO: rcu detected stall in addrconf_dad_work (2) 15 526d 527d 0/22 closed as invalid on 2019/12/04 14:14
upstream INFO: rcu detected stall in addrconf_dad_work C done 126 605d 610d 14/22 fixed on 2019/10/09 10:54
linux-4.19 INFO: rcu detected stall in addrconf_dad_work (2) C done 1 510d 510d 1/1 fixed on 2020/01/19 15:05

Sample crash report:

Crashes (19):
Manager Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Title
ci2-linux-4-19 2019/09/19 03:51 linux-4.19.y db2d0b7c 46c0be24 .config log report syz C
ci2-linux-4-19 2019/09/18 18:20 linux-4.19.y db2d0b7c 46c0be24 .config log report syz C
ci2-linux-4-19 2019/09/14 03:35 linux-4.19.y ee809c7e 32d59357 .config log report syz C
ci2-linux-4-19 2019/09/13 09:12 linux-4.19.y ee809c7e 40fa42bc .config log report syz C
ci2-linux-4-19 2019/09/12 21:00 linux-4.19.y ee809c7e 0b7672ee .config log report syz C
ci2-linux-4-19 2019/09/12 14:09 linux-4.19.y ee809c7e 0b7672ee .config log report syz C
ci2-linux-4-19 2019/09/12 11:34 linux-4.19.y ee809c7e 0b7672ee .config log report syz C
ci2-linux-4-19 2019/09/09 19:50 linux-4.19.y e7d2672c a60cb4cd .config log report syz C
ci2-linux-4-19 2019/09/09 18:18 linux-4.19.y e7d2672c a60cb4cd .config log report syz C
ci2-linux-4-19 2019/09/09 11:08 linux-4.19.y e7d2672c a60cb4cd .config log report syz C
ci2-linux-4-19 2019/09/09 05:10 linux-4.19.y e7d2672c a60cb4cd .config log report syz C
ci2-linux-4-19 2019/09/09 01:20 linux-4.19.y e7d2672c a60cb4cd .config log report syz C
ci2-linux-4-19 2019/09/07 22:08 linux-4.19.y e7d2672c a60cb4cd .config log report syz C
ci2-linux-4-19 2019/09/07 17:59 linux-4.19.y e7d2672c a60cb4cd .config log report syz C
ci2-linux-4-19 2019/09/07 16:20 linux-4.19.y e7d2672c a60cb4cd .config log report syz C
ci2-linux-4-19 2019/09/07 13:13 linux-4.19.y e7d2672c a60cb4cd .config log report syz C
ci2-linux-4-19 2019/09/07 11:09 linux-4.19.y e7d2672c a60cb4cd .config log report syz C
ci2-linux-4-19 2019/09/16 01:20 linux-4.19.y ee809c7e 32d59357 .config log report
ci2-linux-4-19 2019/09/10 19:20 linux-4.19.y ee809c7e a60cb4cd .config log report