syzbot


INFO: rcu detected stall in addrconf_dad_work (5)
Status: upstream: reported C repro on 2020/09/07 15:59
Reported-by: syzbot+251463bfa779ca087ad1@syzkaller.appspotmail.com
First crash: 410d, last: 78d

Cause bisection: introduced by (bisect log) :
commit 5a781ccbd19e4664babcbe4b4ead7aa2b9283d22
Author: Vinicius Costa Gomes <vinicius.gomes@intel.com>
Date: Sat Sep 29 00:59:43 2018 +0000

  tc: Add support for configuring the taprio scheduler

Crash: no output from test machine (log)
Repro: C syz .config

Fix bisection: the fix commit could be any of (bisect log):
  fc3abb53250a Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/hid/hid
  9e9fb7655ed5 Merge tag 'net-next-5.15' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next
similar bugs (7):
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
upstream INFO: rcu detected stall in addrconf_dad_work (4) 8 649d 650d 0/22 closed as invalid on 2020/01/09 08:13
upstream INFO: rcu detected stall in addrconf_dad_work (3) 6 650d 650d 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 766d 773d 1/1 fixed on 2019/12/06 10:33
upstream INFO: rcu detected stall in addrconf_dad_work (2) 15 685d 686d 0/22 closed as invalid on 2019/12/04 14:14
upstream INFO: rcu detected stall in addrconf_dad_work C done 126 764d 769d 14/22 fixed on 2019/10/09 10:54
linux-4.19 INFO: rcu detected stall in addrconf_dad_work (2) C done 1 669d 669d 1/1 fixed on 2020/01/19 15:05
linux-4.19 INFO: rcu detected stall in addrconf_dad_work C done 19 761d 772d 1/1 fixed on 2019/12/07 19:18

Sample crash report:

Crashes (1):
Manager Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Title
ci-upstream-kasan-gce-root 2020/09/03 15:50 upstream fc3abb53250a abf9ba4f .config log report syz C