From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from vps-b7ad3695.vps.ovh.net (vps-b7ad3695.vps.ovh.net [51.38.114.215]) (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 3DB1A207A27 for ; Mon, 5 May 2025 11:56:27 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=51.38.114.215 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1746446190; cv=none; b=gThv1xrP8OM2s6DuPUtvP6ahZR9y8F+iBOj8jbqMgT66v+wLMMip78uo4cUWEfwoIh39wlSIBNPtcu4SrHpnbTe5UxFJqdhtQ8cr+kQOiBBC1RwGKED3VJLGsUFqG7mEWnYyrlm5/Bc04Fc/QaL43XZrGNJKT+2NWorLBpT1Qnk= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1746446190; c=relaxed/simple; bh=AbomoVcY534xT1b1+QbT+VhnTEUx/DQ46lB7b/b3RWU=; h=Date:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To:From; b=VZIUp3iCdRrkydJLIn/qbGUwj6hWEpdDKsJn4upBxRUXVi40mAk+eHNIAlbHB1X1cnYwqArJH7PJejjFQDox7SF/jK9vAjynz1Ryd2FldHB3Ud+bAN7Z57ECVqKNqfSvuraio0q7NFA09dvdoIPm+WwvSMZgTbzw5ZIVhIyhWW8= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=inutil.org; spf=pass smtp.mailfrom=inutil.org; arc=none smtp.client-ip=51.38.114.215 Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=inutil.org Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=inutil.org Received: from hullmann.fritz.box (p5089ae0f.dip0.t-ipconnect.de [80.137.174.15]) by vps-b7ad3695.vps.ovh.net (Postfix) with ESMTPSA id B2792164; Mon, 5 May 2025 11:47:16 +0000 (UTC) Received: from jmm by hullmann.fritz.box with local (Exim 4.98) (envelope-from ) id 1uBuHz-000000000QR-46YE; Mon, 05 May 2025 13:47:15 +0200 Date: Mon, 5 May 2025 13:47:15 +0200 To: Yu Kuai Cc: Melvin Vermeeren , Greg Kroah-Hartman , 1104460@bugs.debian.org, Coly Li , Sasha Levin , stable , regressions@lists.linux.dev, Salvatore Bonaccorso Subject: Re: [regression 6.1.y] discard/TRIM through RAID10 blocking (was: Re: Bug#1104460: linux-image-6.1.0-34-powerpc64le: Discard broken) with RAID10: BUG: kernel tried to execute user page (0) - exploit attempt? Message-ID: References: <174602441004.174814.6400502946223473449.reportbug@talos.vermwa.re> 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-Disposition: inline In-Reply-To: From: =?UTF-8?Q?Moritz_M=C3=BChlenhoff?= Am Wed, Apr 30, 2025 at 05:55:20PM +0200 schrieb Salvatore Bonaccorso: > Hi > > We got a regression report in Debian after the update from 6.1.133 to > 6.1.135. Melvin is reporting that discard/trimm trhough a RAID10 array > stalls idefintively. The full report is inlined below and originates > from https://bugs.debian.org/1104460 . JFTR, we ran into the same problem with a few Wikimedia servers running 6.1.135 and RAID 10: The servers started to lock up once fstrim.service got started. Full oops messages are available at https://phabricator.wikimedia.org/P75746 Cheers, Moritz