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Tsirkin" To: Andres Freund Subject: Re: upstream kernel crashes Message-ID: <20220815035406-mutt-send-email-mst@kernel.org> References: <20220814212610.GA3690074@roeck-us.net> <20220814223743.26ebsbnrvrjien4f@awork3.anarazel.de> <1c057afa-92df-ee3c-5978-3731d3db9345@kernel.dk> <20220815013651.mrm7qgklk6sgpkbb@awork3.anarazel.de> <20220815071143.n2t5xsmifnigttq2@awork3.anarazel.de> <20220815031549-mutt-send-email-mst@kernel.org> <3df6bb82-1951-455d-a768-e9e1513eb667@www.fastmail.com> MIME-Version: 1.0 In-Reply-To: <3df6bb82-1951-455d-a768-e9e1513eb667@www.fastmail.com> X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Content-Disposition: inline Cc: Jens Axboe , "Martin K. Petersen" , Greg Kroah-Hartman , linux-kernel@vger.kernel.org, virtualization@lists.linux-foundation.org, James Bottomley , netdev@vger.kernel.org, Linus Torvalds , Guenter Roeck X-BeenThere: virtualization@lists.linux-foundation.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: Linux virtualization List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Errors-To: virtualization-bounces@lists.linux-foundation.org Sender: "Virtualization" On Mon, Aug 15, 2022 at 12:46:36AM -0700, Andres Freund wrote: > Hi, > > On Mon, Aug 15, 2022, at 00:29, Michael S. Tsirkin wrote: > > On Mon, Aug 15, 2022 at 12:11:43AM -0700, Andres Freund wrote: > >> Hi, > >> > >> On 2022-08-14 20:18:44 -0700, Linus Torvalds wrote: > >> > On Sun, Aug 14, 2022 at 6:36 PM Andres Freund wrote: > >> > > > >> > > Some of the symptoms could be related to the issue in this thread, hence > >> > > listing them here > >> > > >> > Smells like slab corruption to me, and the problems may end up being > >> > then largely random just depending on who ends up using the allocation > >> > that gets trampled on. > >> > > >> > I wouldn't be surprised if it's all the same thing - including your > >> > network issue. > >> > >> Yea. As I just wrote in > >> https://postgr.es/m/20220815070203.plwjx7b3cyugpdt7%40awork3.anarazel.de I > >> bisected it down to one commit (762faee5a267). With that commit I only see the > >> networking issue across a few reboots, but with ebcce4926365 some boots oops > >> badly and other times it' "just" network not working. > >> > >> > >> [oopses] > > >> If somebody knowledgeable staring at 762faee5a267 doesn't surface somebody I > >> can create a kernel with some more debugging stuff enabled, if somebody tells > >> me what'd work best here. > >> > >> > >> Greetings, > >> > >> Andres Freund > > > > Thanks a lot for the work! > > Just a small clarification: > > > > So IIUC you see several issues, right? > > Yes, although they might be related, as theorized by Linus upthread. > > > With 762faee5a2678559d3dc09d95f8f2c54cd0466a7 you see networking issues. > > Yes. > > > > With ebcce492636506443e4361db6587e6acd1a624f9 you see crashes. > > Changed between rebooting. Sometimes the network issue, sometimes the crashes in the email you're replying to. > OK just adding: Signed-off-by: Xuan Zhuo Acked-by: Jason Wang L: virtualization@lists.linux-foundation.org L: netdev@vger.kernel.org I think we can drop the original Cc list: Cc: Linus Torvalds , Jens Axboe , James Bottomley , "Martin K. Petersen" , Guenter Roeck , linux-kernel@vger.kernel.org, Greg Kroah-Hartman but I'm not sure, maybe they want to be informed. > > > MST _______________________________________________ Virtualization mailing list Virtualization@lists.linux-foundation.org https://lists.linuxfoundation.org/mailman/listinfo/virtualization From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 6FAB0C00140 for ; Mon, 15 Aug 2022 08:02:39 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S241092AbiHOICg (ORCPT ); Mon, 15 Aug 2022 04:02:36 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:60082 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S240812AbiHOICQ (ORCPT ); Mon, 15 Aug 2022 04:02:16 -0400 Received: from us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [170.10.133.124]) by lindbergh.monkeyblade.net (Postfix) with ESMTP id 46C161DA5F for ; Mon, 15 Aug 2022 01:02:15 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1660550534; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: in-reply-to:in-reply-to:references:references; bh=4Jg8oqAlmws/gbyv4WS+sTS1PPZS3LzrawxvloBs8oY=; b=Z24iyj5xhKIKE1u3wG4s7TIf7Nrm7kwvTQEKAlSPxyZlY3ZWDMvHsLGX2O8BVeSMxcyjmz EqRIPNbAYtE6aTqSkVXmQzZMSlX0FiUOOs9C+u7V3kxrQTcLAYMteXQAqsK7bVR6WDZvth 3KOsdhkH0oAiJKd7eToCrd5i1D844mc= Received: from mail-ed1-f70.google.com (mail-ed1-f70.google.com [209.85.208.70]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.3, cipher=TLS_AES_128_GCM_SHA256) id us-mta-612-NiDb1c_XPHuc8k_IwWWekg-1; Mon, 15 Aug 2022 04:02:12 -0400 X-MC-Unique: NiDb1c_XPHuc8k_IwWWekg-1 Received: by mail-ed1-f70.google.com with SMTP id t13-20020a056402524d00b0043db1fbefdeso4299418edd.2 for ; Mon, 15 Aug 2022 01:02:12 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=in-reply-to:content-disposition:mime-version:references:message-id :subject:cc:to:from:date:x-gm-message-state:from:to:cc; bh=4Jg8oqAlmws/gbyv4WS+sTS1PPZS3LzrawxvloBs8oY=; b=WFB3OXVhOjlSMJfc1qO8Yynpww/0h4iPPsRyibXcdI/ilE44q7YmJM4WGNOfjaehy9 4eYSx6vwwmFxClMb2EWGceUS0lWhwvPCS/SiFDdaw18NMQb8UK6m8P9LpAR9Dl75g0zm EZPnWDLJmE2/n3EGzQuMlyQ4JLVTb4bfG/CXiwdAsSYyH9C3KjT9XNdtu4lbArzXnESd Sd9rE8llbXyItZIXsMYqgmVODa1+FP6VLJ/W4JyNP7yRDxk3CAkPlVXNs8CtgHldPGVY /5qDD2r4hxGizibwhcM4YTBIze/jFuGE+2YrX7YjwjAFa0KSBp83EEFKCoOha9g9ODae WMPw== X-Gm-Message-State: ACgBeo0vMQ1lV3SANrs9K61gbQyvuqsLnanid/xLdsnuW+fP5/RMvgzz ldIQiFlwbCJYloFacXAhEnTIhBBt48RFL268AmEOwYbtIcH8nZ6HY6XV3KYip03z41IhJ5nIctP A51vqQ1bhTKvAtdGWm/HZWOiD X-Received: by 2002:a17:907:c0d:b0:730:a85d:8300 with SMTP id ga13-20020a1709070c0d00b00730a85d8300mr9882749ejc.558.1660550531938; Mon, 15 Aug 2022 01:02:11 -0700 (PDT) X-Google-Smtp-Source: AA6agR4SndJAy1focKXdgrNdhVF4iukl3tw5+oox/Lgaz/m0ZIdCPTQsgSe8Nmrvc7s0AInVcbyaOg== X-Received: by 2002:a17:907:c0d:b0:730:a85d:8300 with SMTP id ga13-20020a1709070c0d00b00730a85d8300mr9882725ejc.558.1660550531668; Mon, 15 Aug 2022 01:02:11 -0700 (PDT) Received: from redhat.com ([2.54.169.49]) by smtp.gmail.com with ESMTPSA id er6-20020a056402448600b00443d8118155sm789834edb.69.2022.08.15.01.02.08 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 15 Aug 2022 01:02:11 -0700 (PDT) Date: Mon, 15 Aug 2022 04:02:05 -0400 From: "Michael S. Tsirkin" To: Andres Freund Cc: Linus Torvalds , Jens Axboe , James Bottomley , "Martin K. Petersen" , Guenter Roeck , linux-kernel@vger.kernel.org, Greg Kroah-Hartman , Xuan Zhuo , Jason Wang , virtualization@lists.linux-foundation.org, netdev@vger.kernel.org Subject: Re: upstream kernel crashes Message-ID: <20220815035406-mutt-send-email-mst@kernel.org> References: <20220814212610.GA3690074@roeck-us.net> <20220814223743.26ebsbnrvrjien4f@awork3.anarazel.de> <1c057afa-92df-ee3c-5978-3731d3db9345@kernel.dk> <20220815013651.mrm7qgklk6sgpkbb@awork3.anarazel.de> <20220815071143.n2t5xsmifnigttq2@awork3.anarazel.de> <20220815031549-mutt-send-email-mst@kernel.org> <3df6bb82-1951-455d-a768-e9e1513eb667@www.fastmail.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <3df6bb82-1951-455d-a768-e9e1513eb667@www.fastmail.com> Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Mon, Aug 15, 2022 at 12:46:36AM -0700, Andres Freund wrote: > Hi, > > On Mon, Aug 15, 2022, at 00:29, Michael S. Tsirkin wrote: > > On Mon, Aug 15, 2022 at 12:11:43AM -0700, Andres Freund wrote: > >> Hi, > >> > >> On 2022-08-14 20:18:44 -0700, Linus Torvalds wrote: > >> > On Sun, Aug 14, 2022 at 6:36 PM Andres Freund wrote: > >> > > > >> > > Some of the symptoms could be related to the issue in this thread, hence > >> > > listing them here > >> > > >> > Smells like slab corruption to me, and the problems may end up being > >> > then largely random just depending on who ends up using the allocation > >> > that gets trampled on. > >> > > >> > I wouldn't be surprised if it's all the same thing - including your > >> > network issue. > >> > >> Yea. As I just wrote in > >> https://postgr.es/m/20220815070203.plwjx7b3cyugpdt7%40awork3.anarazel.de I > >> bisected it down to one commit (762faee5a267). With that commit I only see the > >> networking issue across a few reboots, but with ebcce4926365 some boots oops > >> badly and other times it' "just" network not working. > >> > >> > >> [oopses] > > >> If somebody knowledgeable staring at 762faee5a267 doesn't surface somebody I > >> can create a kernel with some more debugging stuff enabled, if somebody tells > >> me what'd work best here. > >> > >> > >> Greetings, > >> > >> Andres Freund > > > > Thanks a lot for the work! > > Just a small clarification: > > > > So IIUC you see several issues, right? > > Yes, although they might be related, as theorized by Linus upthread. > > > With 762faee5a2678559d3dc09d95f8f2c54cd0466a7 you see networking issues. > > Yes. > > > > With ebcce492636506443e4361db6587e6acd1a624f9 you see crashes. > > Changed between rebooting. Sometimes the network issue, sometimes the crashes in the email you're replying to. > OK just adding: Signed-off-by: Xuan Zhuo Acked-by: Jason Wang L: virtualization@lists.linux-foundation.org L: netdev@vger.kernel.org I think we can drop the original Cc list: Cc: Linus Torvalds , Jens Axboe , James Bottomley , "Martin K. Petersen" , Guenter Roeck , linux-kernel@vger.kernel.org, Greg Kroah-Hartman but I'm not sure, maybe they want to be informed. > > > MST