From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-5.7 required=3.0 tests=FROM_LOCAL_HEX, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,MENTIONS_GIT_HOSTING, SPF_PASS,URIBL_BLOCKED autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 37955C43381 for ; Tue, 26 Mar 2019 23:04:04 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id EC55920811 for ; Tue, 26 Mar 2019 23:04:03 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1732224AbfCZXEC (ORCPT ); Tue, 26 Mar 2019 19:04:02 -0400 Received: from mail-io1-f71.google.com ([209.85.166.71]:49645 "EHLO mail-io1-f71.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1731483AbfCZXEC (ORCPT ); Tue, 26 Mar 2019 19:04:02 -0400 Received: by mail-io1-f71.google.com with SMTP id z6so11571838ioh.16 for ; Tue, 26 Mar 2019 16:04:01 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:date:in-reply-to:message-id:subject :from:to; bh=yt+50zZPBRx4NLliJkGQS3+f9B8Up4ivzi1p9nl7nzw=; b=SF7VGU7ZPL0N5N65Jmpq3P17AYO9JCwVdzZBzw0WsAKnI1ldvgDsZkLHJSuEIVlmcw URT5qblNmECMe3ft7hDgq9pndhAjsogpYhU2+Rd3T2ygzWEpLSADa1oBuDTlBQ2ZiwX1 dGIY9PEm0d9AbBL6TDktsRpX3W3B1XB4PecYeS1Z0qa00yTmxVbI1x91rTnmUf1atNUw lXnsH0Yl4cS+Xe906zDd03kLCA74CijzrXeeE6gkBw4b52nwGJ3t953ciPfPWir+MgxP FmLzG34hEFDCzUt4KUXgKTUrJbm8vuQiIyejq+SoRRCsv9piYDeMoFOWzXZurvMEybxt JpkA== X-Gm-Message-State: APjAAAX8epQecywTbN9SdytVF3EanGYGwKdxULkLUKKIeP6JiJHo4CpB Rnk3jAvfKcJJgsuaaNdgFP355pWZhDTuq31UrCOoJr3OiGrc X-Google-Smtp-Source: APXvYqx0+I3YpDOMsU1txB3REddsbdqehe79PdpD/0XvzpXd8wdlqz81y54uz4A4lldS3xVXWiXPLrD9NBur+ETkIMNHC+SwTkNM MIME-Version: 1.0 X-Received: by 2002:a6b:ca87:: with SMTP id a129mr10656299iog.187.1553641441254; Tue, 26 Mar 2019 16:04:01 -0700 (PDT) Date: Tue, 26 Mar 2019 16:04:01 -0700 In-Reply-To: <00000000000003cadb05814f3284@google.com> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <00000000000036e81e058507565b@google.com> Subject: Re: INFO: rcu detected stall in __perf_sw_event From: syzbot To: acme@kernel.org, alexander.shishkin@linux.intel.com, fthain@telegraphics.com.au, funaho@jurai.org, geert@linux-m68k.org, jolsa@redhat.com, linux-kernel@vger.kernel.org, linux-m68k@lists.linux-m68k.org, mingo@redhat.com, namhyung@kernel.org, peterz@infradead.org, syzkaller-bugs@googlegroups.com Content-Type: text/plain; charset="UTF-8"; format=flowed; delsp=yes Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org syzbot has bisected this bug to: commit cf85d89562f39cc7ae73de54639f1915a9195b7a Author: Finn Thain Date: Fri May 25 07:34:36 2018 +0000 m68k/mac: Enable PDMA for PowerBook 500 series bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=1226cb8b200000 start commit: b0314565 Merge tag 'for_linus' of git://git.kernel.org/pub.. git tree: upstream final crash: https://syzkaller.appspot.com/x/report.txt?x=1126cb8b200000 console output: https://syzkaller.appspot.com/x/log.txt?x=1626cb8b200000 kernel config: https://syzkaller.appspot.com/x/.config?x=8f00801d7b7c4fe6 dashboard link: https://syzkaller.appspot.com/bug?extid=a41ac89a0712acde0e84 syz repro: https://syzkaller.appspot.com/x/repro.syz?x=1707cd2f400000 Reported-by: syzbot+a41ac89a0712acde0e84@syzkaller.appspotmail.com Fixes: cf85d89562f3 ("m68k/mac: Enable PDMA for PowerBook 500 series") For information about bisection process see: https://goo.gl/tpsmEJ#bisection