From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-io1-f71.google.com (mail-io1-f71.google.com [209.85.166.71]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 1B42D275B12 for ; Sun, 28 Sep 2025 20:12:02 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.166.71 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1759090324; cv=none; b=EM+IC6Qxksi0fQi+trH6wE644NQI/RUJJdsSKXfctLtS0qzAFK/MRFlaLS1Zxf60TZyfHTZf/d2bt7RDQXDcMgpQCGLHd1QJHMfrJThdoXvoZE0WH4KsTZS/8uvxLUwl3qXPHCbT3zbrJ9oK+Kl0lvZpyMET4zYaGW659y13KZs= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1759090324; c=relaxed/simple; bh=0RbFeTDokiBIDFXYwXhTqeTngrPJxIKeMT9v6nJhPYk=; h=MIME-Version:Date:In-Reply-To:Message-ID:Subject:From:To: Content-Type; b=u+3NE+3aAOAwkT86NO/gq40iU9sLNzCJ2Cp0f8H/hkh/fQ/+pCbx8xskVr+N2QWbLlIoqI289ShIhBEb85Ch4i+d8rA+nJ2SoqcLHk2lA4hSB5aVh8pe5HPYDFHM6KcRBRgbbdc1YJScQTC0+h664zH+Mxl+MlvkpHMMSG0FwA8= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=fail (p=none dis=none) header.from=syzkaller.appspotmail.com; spf=pass smtp.mailfrom=M3KW2WVRGUFZ5GODRSRYTGD7.apphosting.bounces.google.com; arc=none smtp.client-ip=209.85.166.71 Authentication-Results: smtp.subspace.kernel.org; dmarc=fail (p=none dis=none) header.from=syzkaller.appspotmail.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=M3KW2WVRGUFZ5GODRSRYTGD7.apphosting.bounces.google.com Received: by mail-io1-f71.google.com with SMTP id ca18e2360f4ac-90efeb58159so335721839f.0 for ; Sun, 28 Sep 2025 13:12:02 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1759090322; x=1759695122; h=to:from:subject:message-id:in-reply-to:date:mime-version :x-gm-message-state:from:to:cc:subject:date:message-id:reply-to; bh=DaduVv8+j9xG9g2Olc4KfHdOBiR7JfOMthlP5Ksd0K8=; b=lRRGMlP0GmbqWHnWCewkHhezYZqFIUIM0jTutn08aChpsRwmxXZ9eBVZaviZFzaaeE molU+y6Xmiti8NgixnI4xGjURdSWmKjayXg2x5P3Vp0pOKWM89Bu/wMINmFKriYNrK6u ebnA8QuKqpQ7iL41t+AzOpRHflS172X3Vl1dTTGO7EqIHjki9siDJ5svjxBz06Bhhr+B IxcwdtrwIfC4HBKMyY7gD3iDMsFQ22fr/luU1zgVNcKlgH3zTJb8IQHcQU+eq5isdN43 74cvil0UPlhZWWJksLzIYX0YF92GeWUs8u+8Noz/iH4YaY1lVEw2DJRtz410x7flro/W 2T+A== X-Forwarded-Encrypted: i=1; AJvYcCWTg9NL2YZkDzmvJnl57Mdv7S6t6bbftWYKQq47QRdCC00N9OKjnFWENw1GJdXeLS9PYdbo26eR37R2lkY=@vger.kernel.org X-Gm-Message-State: AOJu0Yzqa61RmQ1e45v2xshYKXyYk8/wpF1DVZM5iFiB8hdg1xIoy7Dp er3ubJXZ65PfNCEj3keZfTAecwZQcsRzsmNNdjbeerIeb2xJ/cZlr4ycu2Qbf9F3uH6t6eEXbGe GQqvV2YDSJFDETMJVty03L7u9DgepPO+yJ4rMWxRdphBf9J6CrBX3pim+GEM= X-Google-Smtp-Source: AGHT+IFe1cPN5hHZibJvP6cJECKOPK7CIGqP3ONZivzTbEMVJkCeWmbblnq11+o6oAttzrZ2589qumHKCObY7OyIrrC974/LLSD2 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Received: by 2002:a05:6e02:3c83:b0:426:c373:25db with SMTP id e9e14a558f8ab-426c3732a86mr162405485ab.4.1759090322279; Sun, 28 Sep 2025 13:12:02 -0700 (PDT) Date: Sun, 28 Sep 2025 13:12:02 -0700 In-Reply-To: <68769347.a70a0220.693ce.0013.GAE@google.com> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <68d99692.a70a0220.10c4b.0027.GAE@google.com> Subject: Re: [syzbot] [block?] [trace?] INFO: task hung in blk_trace_setup (4) From: syzbot To: axboe@kernel.dk, davem@davemloft.net, jiri@nvidia.com, kuba@kernel.org, linux-block@vger.kernel.org, linux-kernel@vger.kernel.org, linux-trace-kernel@vger.kernel.org, mathieu.desnoyers@efficios.com, mhiramat@kernel.org, netdev@vger.kernel.org, pabeni@redhat.com, rostedt@goodmis.org, syzkaller-bugs@googlegroups.com Content-Type: text/plain; charset="UTF-8" syzbot has bisected this issue to: commit c2368b19807affd7621f7c4638cd2e17fec13021 Author: Jiri Pirko Date: Fri Jul 29 07:10:35 2022 +0000 net: devlink: introduce "unregistering" mark and use it during devlinks iteration bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=12620ae2580000 start commit: 347e9f5043c8 Linux 6.16-rc6 git tree: upstream final oops: https://syzkaller.appspot.com/x/report.txt?x=11620ae2580000 console output: https://syzkaller.appspot.com/x/log.txt?x=16620ae2580000 kernel config: https://syzkaller.appspot.com/x/.config?x=f62a2ef17395702a dashboard link: https://syzkaller.appspot.com/bug?extid=9c1ebb9957045e00ac63 syz repro: https://syzkaller.appspot.com/x/repro.syz?x=138dfd82580000 Reported-by: syzbot+9c1ebb9957045e00ac63@syzkaller.appspotmail.com Fixes: c2368b19807a ("net: devlink: introduce "unregistering" mark and use it during devlinks iteration") For information about bisection process see: https://goo.gl/tpsmEJ#bisection