From mboxrd@z Thu Jan 1 00:00:00 1970 From: Dmitry Vyukov Subject: Re: INFO: rcu detected stall in sctp_generate_heartbeat_event Date: Sat, 26 May 2018 17:36:02 +0200 Message-ID: References: <000000000000062c1c056bacd39f@google.com> <20180508120643.GM4977@localhost.localdomain> Mime-Version: 1.0 Content-Type: text/plain; charset="UTF-8" Cc: syzbot , David Miller , LKML , linux-sctp@vger.kernel.org, netdev , Neil Horman , syzkaller-bugs , Vladislav Yasevich To: Marcelo Ricardo Leitner Return-path: In-Reply-To: <20180508120643.GM4977@localhost.localdomain> Sender: linux-kernel-owner@vger.kernel.org List-Id: netdev.vger.kernel.org On Tue, May 8, 2018 at 2:06 PM, Marcelo Ricardo Leitner wrote: > On Tue, May 08, 2018 at 12:35:02AM -0700, syzbot wrote: >> Hello, >> >> syzbot found the following crash on: >> >> HEAD commit: 90278871d4b0 Merge git://git.kernel.org/pub/scm/linux/kern.. >> git tree: net-next >> console output: https://syzkaller.appspot.com/x/log.txt?x=119a7237800000 >> kernel config: https://syzkaller.appspot.com/x/.config?x=aea320d3af5ef99d >> dashboard link: https://syzkaller.appspot.com/bug?extid=e4a5bbd54260c93014f9 >> compiler: gcc (GCC) 8.0.1 20180413 (experimental) >> >> Unfortunately, I don't have any reproducer for this crash yet. > > A reproducer will be welcomed. With just these traces, I don't think > we have enough information. #syz fix: sctp: not allow to set rto_min with a value below 200 msecs