From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id A5E2D1531D8; Wed, 21 Aug 2024 16:35:42 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1724258142; cv=none; b=D/KFXKcs0wkZgfBtH9l6qmuYjVWpz2j49Jkch3e0yp+wSWoKqlnfAu49YL8docgZEmLmMuQYD2y6g3X3eVweokrtPwAsP7t/29HSHsl/vCKF8MFG6JGK3oN6Zc+wQNKZ8ume9bukgZQ24Ta7cD7Gu1uHlQxJeznoxUwALZyqKxE= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1724258142; c=relaxed/simple; bh=mVVQt8vfen6cLdftC8wh2TeYkqCsp9PRkdY9AUiKv+s=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=bbMiC8k3aWfI5yfmGbN2JTo3vjs4vGORjOAYYF993rnt98iLNe9gg4lsCEA5RFT9JYPgikZ1NccdIL6tOHEkB5SN2od51Lbv9cBeTJKpol+wHzxJOheysROp5XFPXoJiYpiZzgoNie6jLxQbM+DspoPXSdtxUXm2sf50849vPrc= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=hdj3a8/N; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="hdj3a8/N" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 62E89C32781; Wed, 21 Aug 2024 16:35:42 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1724258142; bh=mVVQt8vfen6cLdftC8wh2TeYkqCsp9PRkdY9AUiKv+s=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=hdj3a8/Ngq72vKelenxI9RXYEwvVPWQa2MzfK/fAE4fQDL42Gnzzt76QeRtCUMq39 QGihwbTO8LtbAI2L/zQwcj3/RSXQxa237A9ZpkJNdbnHaa9VAQ/fpvumStiBb7ZoLZ GLa8kw4EPrMyhbf+5mAbMg7Z2p8mvTMoxHf41a6jPv0/rqKbi9nnBwMcvFAvsd7c6i hhfcWjbZMxmL/tEOdRvp7K3DYMigfyrpMj1WeBtLS/oXC3g3TFvYZL7lQkELGxcEPM tJK4nOAieCocPbIV+4kgw2xsk2zMUempnTZ+qRcg32wOsrBm1s0ZTPQq+XHdVnZsub cOkIuBNzuBPsg== Date: Wed, 21 Aug 2024 06:35:41 -1000 From: Tejun Heo To: "Paul E. McKenney" Cc: matthew.brost@intel.com, jiangshanlai@gmail.com, sfr@canb.auug.org.au, linux-kernel@vger.kernel.org, linux-next@vger.kernel.org Subject: Re: [BUG bisected] sysfs: cannot create duplicate filename '/devices/virtual/workqueue/scsi_tmf_1073822488' Message-ID: References: <8d443293-2020-42d9-b5b1-1348f551648f@paulmck-laptop> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: On Wed, Aug 21, 2024 at 06:18:45AM -1000, Tejun Heo wrote: ... > > tools/testing/selftests/rcutorture/bin/kvm.sh --allcpus --duration 1m --configs "2*TREE01" --trust-make ... > Hmmm... I have a hard time imagining that change causing that error. My bet > is unreliable reproducer. I'll try the repro. I'm probably doing something wrong but all the tests say that init segfaulted in the log file: [ 5.505986] init[1]: segfault at 28 ip 000000000040101f sp 00007fff1bbf6fc0 error 4 in init[101f,401000+1000] likely on CPU 12 (core 12, socket 0) [ 5.509949] Code: Unable to access opcode bytes at 0x400ff5. [ 5.512314] coredump: 1(init): over coredump resource limit, skipping core dump [ 5.514976] coredump: 1(init): coredump has not been created, error -7 [ 5.516911] Kernel panic - not syncing: Attempted to kill init! exitcode=0x0000000b Pasting the command output: $ tools/testing/selftests/rcutorture/bin/kvm.sh --allcpus --duration 1m --configs "2*TREE01" --trust-make tools/testing/selftests/rcutorture/initrd/init already exists, no need to create it Results directory: /home/htejun/os/linux-next/tools/testing/selftests/rcutorture/res/2024.08.21-06.31.03 tools/testing/selftests/rcutorture/bin/kvm.sh --allcpus --duration 1m --configs 2*TREE01 --trust-make ----Start batch 1: Wed Aug 21 06:31:03 AM HST 2024 TREE01 8: Starting build. Wed Aug 21 06:31:03 AM HST 2024 TREE01 8: Waiting for build to complete. Wed Aug 21 06:31:03 AM HST 2024 TREE01 8: Build complete. Wed Aug 21 06:31:30 AM HST 2024 TREE01.2 8: Starting build. Wed Aug 21 06:31:30 AM HST 2024 TREE01.2 8: Waiting for build to complete. Wed Aug 21 06:31:30 AM HST 2024 TREE01.2 8: Build complete. Wed Aug 21 06:31:31 AM HST 2024 ---- TREE01 8: Kernel present. Wed Aug 21 06:31:31 AM HST 2024 ---- TREE01.2 8: Kernel present. Wed Aug 21 06:31:31 AM HST 2024 ---- Starting kernels. Wed Aug 21 06:31:31 AM HST 2024 ---- All kernel runs complete. Wed Aug 21 06:31:42 AM HST 2024 ---- TREE01 8: Build/run results: --- Wed Aug 21 06:31:03 AM HST 2024: Starting build, PID 456070 --- Wed Aug 21 06:31:31 AM HST 2024: Starting kernel CPU-hotplug kernel, adding rcutorture onoff. --- Wed Aug 21 06:31:31 AM HST 2024: Starting kernel, PID 483593 Monitoring qemu job at pid 483623 Wed Aug 21 06:31:41 AM HST 2024 TREE01 no success message, 0 successful version messages WARNING: Assertion failure in /home/htejun/os/linux-next/tools/testing/selftests/rcutorture/res/2024.08.21-06.31.03/TREE01/console.log TREE01 WARNING: Summary: Call Traces: 1 ---- TREE01.2 8: Build/run results: --- Wed Aug 21 06:31:30 AM HST 2024: Starting build, PID 482122 --- Wed Aug 21 06:31:31 AM HST 2024: Starting kernel CPU-hotplug kernel, adding rcutorture onoff. --- Wed Aug 21 06:31:31 AM HST 2024: Starting kernel, PID 483619 Monitoring qemu job at pid 483648 Wed Aug 21 06:31:41 AM HST 2024 TREE01 no success message, 0 successful version messages WARNING: Assertion failure in /home/htejun/os/linux-next/tools/testing/selftests/rcutorture/res/2024.08.21-06.31.03/TREE01.2/console.log TREE01 WARNING: Summary: Call Traces: 1 --- Wed Aug 21 06:31:42 AM HST 2024 Test summary: Results directory: /home/htejun/os/linux-next/tools/testing/selftests/rcutorture/res/2024.08.21-06.31.03 tools/testing/selftests/rcutorture/bin/kvm.sh --allcpus --duration 1m --configs 2*TREE01 --trust-make TREE01 ------- TREE01 no success message, 0 successful version messages WARNING: Assertion failure in /home/htejun/os/linux-next/tools/testing/selftests/rcutorture/res/2024.08.21-06.31.03/TREE01/console.log TREE01 WARNING: Summary: Call Traces: 1 Completed in 10 vs. 60 TREE01.2 ------- TREE01.2 no success message, 0 successful version messages WARNING: Assertion failure in /home/htejun/os/linux-next/tools/testing/selftests/rcutorture/res/2024.08.21-06.31.03/TREE01.2/console.log TREE01.2 WARNING: Summary: Call Traces: 1 Completed in 10 vs. 60 2 runs with build errors. 2 runs with runtime errors. --- Done at Wed Aug 21 06:31:42 AM HST 2024 (39 seconds) exitcode 3 -- tejun