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 7DFADC25B0D for ; Mon, 15 Aug 2022 15:49:27 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230208AbiHOPt0 (ORCPT ); Mon, 15 Aug 2022 11:49:26 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:37966 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229912AbiHOPtY (ORCPT ); Mon, 15 Aug 2022 11:49:24 -0400 Received: from mail-pg1-x536.google.com (mail-pg1-x536.google.com [IPv6:2607:f8b0:4864:20::536]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 29614E23 for ; Mon, 15 Aug 2022 08:49:23 -0700 (PDT) Received: by mail-pg1-x536.google.com with SMTP id f65so6800440pgc.12 for ; Mon, 15 Aug 2022 08:49:23 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20210112; h=in-reply-to:content-disposition:mime-version:references:message-id :subject:cc:to:from:date:sender:from:to:cc; bh=4dMBLF5BGokioWpGIdqPnwyyYw9hLz+LiOwDTyhLGYM=; b=B0ighMVJ+NYAVPFU8x6BTr5lb5NR/AjzjEU7eAfsfPnEt3pYIXUbcmoYYez0e0l7Pp ny64qnifhxMIP+DOU6sSV3bZxwgNRwpfFCyJIE0Ews1RcTTnIgu9SIWQba8kiqBGQUqk LqGK8naG4dK6AYuVuHALDa5CyOx6widol9Bm17df2gbu6LEWFAA8fXu6uKgXakVkvEXF 6eDyLGAU3NMW2f8PnBBZ1lxA+RBx1hOEf0xntFcfXsdvIlWO3O86oCbSBKtlaYudmNXe GE1CbC3yn+M90oDGpbnOK8JKev+WEP8Lc7rS3jBq6DobbSzmTdjyz/GfKOU996v4TZEi zVlw== 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:sender:x-gm-message-state:from:to:cc; bh=4dMBLF5BGokioWpGIdqPnwyyYw9hLz+LiOwDTyhLGYM=; b=5UrrYd7v3DhcZpVk+c2mwSTi9d4m/PxbdyiYo//yZIxrOfE1qWKqLVQxyWjbjxuoT1 klnJsTwPDMlxpewf9KB4ybRfcWKh/GpNl2CmpbYBWmz4dcJPlTasErtgLKI1SWDv5MK6 o6CU0QYGATKqGb3rtehIvrvrapov5aD7xzSR+xkeCi/LcUePHRCwkNaPtH6Bt5fcf0bV fXs9rMUfU+xzgFc4Mlkh7o/pfyTydgUdL4kC3/gRfSBgqXRfrWSgFQzSmdYVYZgTL5Ys hoe5gjLdNM9/X1CN1CoJRHUKl+jrERqHT4OMEWVfep+Veb3IUON82/FZPWCz1g3Q3Dwx gypQ== X-Gm-Message-State: ACgBeo3D0uoIUbC6A3XwdxFmftU8WJc2/lLvJ8K+G4QkvRwPUNsDEbUw hvQSwsgXkr+Tb/1uCqLNmiM= X-Google-Smtp-Source: AA6agR5Xvs+kWxMri3ik+t3PGCG0cLKnchnuxg5xumUZuPhSeNfc4YcLzC3sFkPU2PmbW1sdGYId4g== X-Received: by 2002:a63:318a:0:b0:41c:b82a:dc6d with SMTP id x132-20020a63318a000000b0041cb82adc6dmr14473397pgx.319.1660578562631; Mon, 15 Aug 2022 08:49:22 -0700 (PDT) Received: from server.roeck-us.net ([2600:1700:e321:62f0:329c:23ff:fee3:9d7c]) by smtp.gmail.com with ESMTPSA id z6-20020a170903018600b0016d2db82962sm7239418plg.16.2022.08.15.08.49.21 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 15 Aug 2022 08:49:21 -0700 (PDT) Sender: Guenter Roeck Date: Mon, 15 Aug 2022 08:49:20 -0700 From: Guenter Roeck To: "Michael S. Tsirkin" Cc: linux-kernel@vger.kernel.org, Linus Torvalds , Greg KH Subject: Re: upstream kernel crashes Message-ID: <20220815154920.GA4027315@roeck-us.net> References: <20220814212610.GA3690074@roeck-us.net> <20220815054117-mutt-send-email-mst@kernel.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20220815054117-mutt-send-email-mst@kernel.org> Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Mon, Aug 15, 2022 at 05:43:19AM -0400, Michael S. Tsirkin wrote: > On Sun, Aug 14, 2022 at 02:26:10PM -0700, Guenter Roeck wrote: > > Hi all, > > > > syscaller reports lots of crashes with the mainline kernel. The latest > > I have seen, based on the current ToT, is attached. Backtraces are not > > always the same, but this one is typical. > > > > I have not tried to analyze this further. > > > > Guenter > > Thanks a lot for the report! > > Could you please try the latest vhost tree: > https://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost.git linux-next > > which has been reported by Andres Freund to fix a similar issue? > I have now literally seen dozens of reports with syzcaller crashing in various code locations, but we are still trying to actually reproduce the problem. We'll respond on the revert patch once we can reproduce the issue and thus the fix. Thanks, Guenter