From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mx0b-001b2d01.pphosted.com (mx0b-001b2d01.pphosted.com [148.163.158.5]) (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 ED0E139FCE; Mon, 6 Jan 2025 14:07:22 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=148.163.158.5 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1736172444; cv=none; b=F2W0BFzBEzQvgER4IBEFq6n6TRNBlLjImDnoIUBiUVh5CUxBGIeTpG6FH15LMOhBfQD+k606AZODcqvYpqB3lO9R6nreHLO74Oz1CqyNg8G1n2ZxbctkEaN6pO0s6Uz6vyTvmZtPdsciEB4Mwqj/Wi3fj4ZmjegwEy00tVkAe0I= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1736172444; c=relaxed/simple; bh=/9C/B/LcemZhglova26kzWe8CHKOrQjAUztr9Jd9fTs=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=J6zr23mGqCT5DEpX50oi2hV02Z+QoXV17yYztNpVFCwi5TFBhcjB9f48vSvG9wh8xGqcJT/39lGYZzs7jjkBdLyuP8XzNoWKEB7RNcYMZI7HiH0NH8SGgS2rMBKOYActxduGfhwLvhk/RHky//9sG+fI8pgh4HA2fTRmZlM0zM4= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.ibm.com; spf=pass smtp.mailfrom=linux.ibm.com; dkim=pass (2048-bit key) header.d=ibm.com header.i=@ibm.com header.b=lYp1U3Yq; arc=none smtp.client-ip=148.163.158.5 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.ibm.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=linux.ibm.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=ibm.com header.i=@ibm.com header.b="lYp1U3Yq" Received: from pps.filterd (m0356516.ppops.net [127.0.0.1]) by mx0a-001b2d01.pphosted.com (8.18.1.2/8.18.1.2) with ESMTP id 505NaqEp007181; Mon, 6 Jan 2025 14:07:15 GMT DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ibm.com; h=cc :content-description:content-type:date:from:in-reply-to :message-id:mime-version:references:subject:to; s=pp1; bh=KeXVtT MY9ysxosD9h4kHGx7Wr7hGM/QRUps34uop+M8=; b=lYp1U3YqgwloOXPMav/0UT UvXGUVJc8FNUto/qpfKqwkWWhv7wbNWpz5mIkHKt6+PZozLwcYCoP05TbfUEhC2i bQUmpN3kUOaogOLFWaB8MYOQTolWfzqTACF5PtMTEukJ1itX8q2H8RaWLBaaEegD z5eiuG56VmrsKlQVdaz/WR8j9GyOZLUGdgztHDR+hNWWDARw6+hSISEPz9MT6eMZ fUg0waCy7wNmj3JWDbBzgj6tY4Y7XwietmbnGy4dYK+DW0DOBjUwawtso39x3MGu 7e1LbiP14nKiTRH6WyLoTqeyfU4SBjZqfGefbODhwEwoWoa7oZtyMSGsQ0M6qXCA == Received: from ppma23.wdc07v.mail.ibm.com (5d.69.3da9.ip4.static.sl-reverse.com [169.61.105.93]) by mx0a-001b2d01.pphosted.com (PPS) with ESMTPS id 4403wajtj0-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Mon, 06 Jan 2025 14:07:14 +0000 (GMT) Received: from pps.filterd (ppma23.wdc07v.mail.ibm.com [127.0.0.1]) by ppma23.wdc07v.mail.ibm.com (8.18.1.2/8.18.1.2) with ESMTP id 506B34J5015795; Mon, 6 Jan 2025 14:07:14 GMT Received: from smtprelay03.fra02v.mail.ibm.com ([9.218.2.224]) by ppma23.wdc07v.mail.ibm.com (PPS) with ESMTPS id 43ygtknuvk-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Mon, 06 Jan 2025 14:07:14 +0000 Received: from smtpav03.fra02v.mail.ibm.com (smtpav03.fra02v.mail.ibm.com [10.20.54.102]) by smtprelay03.fra02v.mail.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id 506E7CXG57016730 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Mon, 6 Jan 2025 14:07:12 GMT Received: from smtpav03.fra02v.mail.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 052A920043; Mon, 6 Jan 2025 14:07:12 +0000 (GMT) Received: from smtpav03.fra02v.mail.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id D86C520040; Mon, 6 Jan 2025 14:07:11 +0000 (GMT) Received: from tuxmaker.boeblingen.de.ibm.com (unknown [9.152.85.9]) by smtpav03.fra02v.mail.ibm.com (Postfix) with ESMTPS; Mon, 6 Jan 2025 14:07:11 +0000 (GMT) Date: Mon, 6 Jan 2025 15:07:08 +0100 From: Alexander Gordeev To: Borislav Petkov Cc: Linus Torvalds , Linux Kernel Mailing List , Koichiro Den , Sebastian Andrzej Siewior , Andrew Morton , stable@vger.kernel.org Subject: Re: Linux 6.13-rc6 Message-ID: References: <20250106131817.GAZ3vYGVr3-hWFFPLj@fat_crate.local> Precedence: bulk X-Mailing-List: stable@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Description: Re: Linux 6.13-rc6 Content-Disposition: inline In-Reply-To: <20250106131817.GAZ3vYGVr3-hWFFPLj@fat_crate.local> X-TM-AS-GCONF: 00 X-Proofpoint-GUID: LimqS1myUG2y4b7FJWApvxjnj72vJv-q X-Proofpoint-ORIG-GUID: LimqS1myUG2y4b7FJWApvxjnj72vJv-q X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1051,Hydra:6.0.680,FMLib:17.12.62.30 definitions=2024-10-15_01,2024-10-11_01,2024-09-30_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 phishscore=0 mlxlogscore=419 lowpriorityscore=0 spamscore=0 suspectscore=0 bulkscore=0 mlxscore=0 clxscore=1011 adultscore=0 impostorscore=0 priorityscore=1501 malwarescore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.19.0-2411120000 definitions=main-2501060124 On Mon, Jan 06, 2025 at 02:18:17PM +0100, Borislav Petkov wrote: Hi All, > Something not well baked managed to sneak in and it is tagged for stable: > > adcfb264c3ed ("vmstat: disable vmstat_work on vmstat_cpu_down_prep()") > > Reverting it fixes the warn splat below. > > [ 0.310373] smpboot: x86: Booting SMP configuration: > [ 0.311074] .... node #0, CPUs: #1 #2 #3 #4 #5 #6 #7 #8 #9 #10 #11 #12 #13 #14 #15 > [ 0.313798] ------------[ cut here ]------------ > [ 0.317530] workqueue: work disable count underflowed > [ 0.317530] WARNING: CPU: 1 PID: 21 at kernel/workqueue.c:4317 enable_work+0xa4/0xb0 > [ 0.317530] Modules linked in: > [ 0.317530] CPU: 1 UID: 0 PID: 21 Comm: cpuhp/1 Not tainted 6.13.0-rc6 #11 ... JFYI, hitting the same on s390: [ 0.176304] smp: Bringing up secondary CPUs ... [ 0.186596] ------------[ cut here ]------------ [ 0.186603] workqueue: work disable count underflowed [ 0.186606] WARNING: CPU: 1 PID: 21 at kernel/workqueue.c:4317 enable_work+0x10a/0x120 [ 0.186613] Modules linked in: [ 0.186615] CPU: 1 UID: 0 PID: 21 Comm: cpuhp/1 Not tainted 6.13.0-rc6 #206 [ 0.186619] Hardware name: IBM 3931 A01 701 (KVM/Linux) [ 0.186621] Krnl PSW : 0404c00180000000 00000308470979ee (enable_work+0x10e/0x120) [ 0.186626] R:0 T:1 IO:0 EX:0 Key:0 M:1 W:0 P:0 AS:3 CC:0 PM:0 RI:0 EA:3 [ 0.186629] Krnl GPRS: 00000308484bf9b8 00000308484bf9b0 0000000000000029 00000308484bf9b8 [ 0.186632] 000002884717ba08 000002884717ba00 000003084726e5e0 000000000073e180 [ 0.186634] 000000007fffffff 0000000000000000 0000000000000000 000000007af24840 [ 0.186637] 0000000000e3a300 0000000000e3a300 00000308470979ea 000002884717bc60 [ 0.186685] Krnl Code: 00000308470979de: c02000846cd0 larl %r2,000003084812537e [ 0.186685] 00000308470979e4: c0e5fffee146 brasl %r14,0000030847073c70 [ 0.186685] #00000308470979ea: af000000 mc 0,0 [ 0.186685] >00000308470979ee: a7080000 lhi %r0,0 [ 0.186685] 00000308470979f2: a7f4ffb2 brc 15,0000030847097956 [ 0.186685] 00000308470979f6: 0707 bcr 0,%r7 [ 0.186685] 00000308470979f8: 0707 bcr 0,%r7 [ 0.186685] 00000308470979fa: 0707 bcr 0,%r7 [ 0.186708] Call Trace: [ 0.186710] [<00000308470979ee>] enable_work+0x10e/0x120 [ 0.186714] ([<00000308470979ea>] enable_work+0x10a/0x120) [ 0.186718] [<000003084726e64c>] vmstat_cpu_online+0x6c/0x90 [ 0.186722] [<0000030847075d9a>] cpuhp_invoke_callback+0x16a/0x4d0 [ 0.186725] [<0000030847076832>] cpuhp_thread_fun+0xc2/0x250 [ 0.186728] [<00000308470a8424>] smpboot_thread_fn+0xe4/0x1b0 [ 0.186731] [<00000308470a0d46>] kthread+0x126/0x130 [ 0.186735] [<000003084702508c>] __ret_from_fork+0x3c/0x60 [ 0.186738] [<0000030847d3a582>] ret_from_fork+0xa/0x38 [ 0.186742] Last Breaking-Event-Address: [ 0.186743] [<0000030847073d62>] __warn_printk+0xf2/0x100 [ 0.186746] Kernel panic - not syncing: kernel: panic_on_warn set ... [ 0.186749] CPU: 1 UID: 0 PID: 21 Comm: cpuhp/1 Not tainted 6.13.0-rc6 #206 Thanks!