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Date: Fri, 22 Mar 2019 04:12:00 -0700 From: syzbot <syzbot+a50c7541a4a55cd49b02@...kaller.appspotmail.com> To: adilger.kernel@...ger.ca, davem@...emloft.net, jiangshanlai@...il.com, kuznet@....inr.ac.ru, linux-ext4@...r.kernel.org, linux-fsdevel@...r.kernel.org, linux-kernel@...r.kernel.org, netdev@...r.kernel.org, sbrivio@...hat.com, sd@...asysnail.net, syzkaller-bugs@...glegroups.com, tj@...nel.org, tytso@....edu, viro@...iv.linux.org.uk, yoshfuji@...ux-ipv6.org Subject: Re: possible deadlock in flush_workqueue (2) syzbot has bisected this bug to: commit f547fac624be53ad8b07e9ebca7654a7827ba61b Author: Sabrina Dubroca <sd@...asysnail.net> Date: Fri Oct 12 14:22:47 2018 +0000 ipv6: rate-limit probes for neighbourless routes bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=17affd1b200000 start commit: f547fac6 ipv6: rate-limit probes for neighbourless routes git tree: upstream final crash: https://syzkaller.appspot.com/x/report.txt?x=146ffd1b200000 console output: https://syzkaller.appspot.com/x/log.txt?x=106ffd1b200000 kernel config: https://syzkaller.appspot.com/x/.config?x=963b24abf3f7c2d8 dashboard link: https://syzkaller.appspot.com/bug?extid=a50c7541a4a55cd49b02 syz repro: https://syzkaller.appspot.com/x/repro.syz?x=12097f03400000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=10b55ac5400000 Reported-by: syzbot+a50c7541a4a55cd49b02@...kaller.appspotmail.com Fixes: f547fac624be ("ipv6: rate-limit probes for neighbourless routes") For information about bisection process see: https://goo.gl/tpsmEJ#bisection
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