From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mr85p00im-zteg06023901.me.com (mr85p00im-zteg06023901.me.com [17.58.23.192]) (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 E79AB17745 for ; Tue, 6 Feb 2024 20:56:03 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=17.58.23.192 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1707252965; cv=none; b=T0iyD4Dbz6M0fOKgJDv62FuE5xVhbO9C6I/k+ee+G1dNs1RqT2nArjhWhtGpRU3SC7BbjATG+BijVFZSZZmG2NA4fYVFzCv1euSBtXbIinuCBZmrIIlpLpOm722uubTgMtoTON3xwZGdnQSS8UIPawM7yHYpW8szEyAKfji8eEc= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1707252965; c=relaxed/simple; bh=2xm3AT/eRSxwqdNOftMIryVkwU+qLY7viqygWB+r4Pk=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=oi6Gfe7mRGdRct6wgq0iOZXSorLsZFGtyHzBl5vnBBZ6KNMhS8at6wzVCPSX7FO4mL/rdiUkG6laTUwCwZpU2k/rfYqgptWoVg/2PtnPBqccJMBYySpPOuDxf0SNDt0VwWGMLcaufmoPwaP2RWpZlvNbzCuIW+6T6hub91OhO/A= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=danm.net; spf=pass smtp.mailfrom=danm.net; dkim=pass (2048-bit key) header.d=danm.net header.i=@danm.net header.b=HdcuQ4zV; arc=none smtp.client-ip=17.58.23.192 Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=danm.net Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=danm.net Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=danm.net header.i=@danm.net header.b="HdcuQ4zV" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=danm.net; s=sig1; t=1707252963; bh=9ZmzGBmNVTa/8kwYBxGy8hTi1lwybR+HgPQFnfk+Pp0=; h=From:To:Subject:Date:Message-ID:MIME-Version; b=HdcuQ4zVg41Gc0d4hEPK19pUUvu8IsCu2yFIrX/oo1b4z2bWLQxZ+9LQsTY4jMxfL 5JsHo1MJzANr48dqcSUOMn9bCoqanZsGU5wSZ0Nb2WXlYnskpeLtlvuVAOdE+dKo2a BEGznsW6rTjsNb8x5ljfBNvMgQcGsAd5oH0r2j4uTIdnCYlq9fijjW8DMNZ630ckR3 WEEKT43hYJi6eKWgdWRjdxob/dWcLVzw8fYFgII3U6BYwAYp1uW131gzZ7RLqa6CDa n2CvNNI3Tahqg+jgWMUzBHLsw8AeHizlURNvncHIIZThP/JAu2Pp/pV0dRzoYYyXfA ElCNIQfNOfnCQ== Received: from hitch.danm.net (mr38p00im-dlb-asmtp-mailmevip.me.com [17.57.152.18]) by mr85p00im-zteg06023901.me.com (Postfix) with ESMTPSA id 110BA6E0369; Tue, 6 Feb 2024 20:56:01 +0000 (UTC) From: Dan Moulding To: song@kernel.org Cc: dan@danm.net, gregkh@linuxfoundation.org, junxiao.bi@oracle.com, linux-kernel@vger.kernel.org, linux-raid@vger.kernel.org, regressions@lists.linux.dev, stable@vger.kernel.org, yukuai1@huaweicloud.com Subject: Re: [REGRESSION] 6.7.1: md: raid5 hang and unresponsive system; successfully bisected Date: Tue, 6 Feb 2024 13:56:00 -0700 Message-ID: <20240206205600.20788-1-dan@danm.net> X-Mailer: git-send-email 2.43.0 In-Reply-To: References: Precedence: bulk X-Mailing-List: linux-raid@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Proofpoint-GUID: 1PwEXQiIHZiZPEsu5x6_2YSUNe4Yw20j X-Proofpoint-ORIG-GUID: 1PwEXQiIHZiZPEsu5x6_2YSUNe4Yw20j X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.272,Aquarius:18.0.1011,Hydra:6.0.619,FMLib:17.11.176.26 definitions=2024-02-06_14,2024-01-31_01,2023-05-22_02 X-Proofpoint-Spam-Details: rule=notspam policy=default score=0 suspectscore=0 phishscore=0 spamscore=0 mlxscore=0 adultscore=0 clxscore=1030 malwarescore=0 mlxlogscore=688 bulkscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.19.0-2308100000 definitions=main-2402060146 > Dan, could you please run the test on this branch > (83cbdaf61b1ab9cdaa0321eeea734bc70ca069c8)? I'm sorry to report that I can still reproduce the problem running the kernel built from the md-6.9 branch (83cbdaf61b1a). But the only commit I see on that branch that's not in master and touches raid5.c is this one: test@sysrescue:~/src/linux$ git log master..song/md-6.9 drivers/md/raid5.c commit 61c90765e131e63ead773b9b99167415e246a945 Author: Yu Kuai Date: Thu Dec 28 20:55:51 2023 +0800 md: remove redundant check of 'mddev->sync_thread' Is that expected, or were you expecting additional fixes to be in there? -- Dan