From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752555AbeETBpu (ORCPT ); Sat, 19 May 2018 21:45:50 -0400 Received: from mail-qk0-f173.google.com ([209.85.220.173]:43544 "EHLO mail-qk0-f173.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752199AbeETBpr (ORCPT ); Sat, 19 May 2018 21:45:47 -0400 X-Google-Smtp-Source: AB8JxZrwGOJ6t6OCJauP3+gCDycveJQJl41b67Jp3/nrJ0ADtWpeQCN1NRN2g6OPJBh/1jnb7xlpcQ== Date: Sat, 19 May 2018 22:45:44 -0300 From: Marcelo Ricardo Leitner To: Eric Dumazet Cc: syzbot , ast@kernel.org, daniel@iogearbox.net, linux-kernel@vger.kernel.org, netdev@vger.kernel.org, syzkaller-bugs@googlegroups.com, Xin Long Subject: Re: INFO: rcu detected stall in is_bpf_text_address Message-ID: <20180520014544.GB26212@localhost.localdomain> References: <0000000000006d7517056c911740@google.com> <4b65142a-cf3b-05d7-d66b-018ff8da7ccc@gmail.com> MIME-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: <4b65142a-cf3b-05d7-d66b-018ff8da7ccc@gmail.com> User-Agent: Mutt/1.9.2 (2017-12-15) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Sat, May 19, 2018 at 08:57:19AM -0700, Eric Dumazet wrote: > SCTP experts, please take a look. Ugh, same sctp footprint as in the other reports. > > >  _sctp_make_chunk+0x58/0x280 net/sctp/sm_make_chunk.c:1417 > >  sctp_make_control net/sctp/sm_make_chunk.c:1464 [inline] > >  sctp_make_heartbeat+0x8f/0x430 net/sctp/sm_make_chunk.c:1177 > >  sctp_sf_heartbeat.isra.23+0x26/0x180 net/sctp/sm_statefuns.c:1005 > >  sctp_sf_sendbeat_8_3+0x38e/0x550 net/sctp/sm_statefuns.c:1049 > >  sctp_do_sm+0x1ab/0x7160 net/sctp/sm_sideeffect.c:1188 > >  sctp_generate_heartbeat_event+0x218/0x450 net/sctp/sm_sideeffect.c:406 > >  call_timer_fn+0x230/0x940 kernel/time/timer.c:1326 > >  expire_timers kernel/time/timer.c:1363 [inline] > >  __run_timers+0x79e/0xc50 kernel/time/timer.c:1666 > >  run_timer_softirq+0x4c/0x70 kernel/time/timer.c:1692