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 X-Spam-Level: X-Spam-Status: No, score=-7.3 required=3.0 tests=DKIM_INVALID,DKIM_SIGNED, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,MENTIONS_GIT_HOSTING, SPF_PASS,USER_AGENT_MUTT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 73ADAC43444 for ; Tue, 18 Dec 2018 12:17:13 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 3549221855 for ; Tue, 18 Dec 2018 12:17:13 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (2048-bit key) header.d=infradead.org header.i=@infradead.org header.b="hR99KKpR" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726728AbeLRMRM (ORCPT ); Tue, 18 Dec 2018 07:17:12 -0500 Received: from bombadil.infradead.org ([198.137.202.133]:47988 "EHLO bombadil.infradead.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726451AbeLRMRL (ORCPT ); Tue, 18 Dec 2018 07:17:11 -0500 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=bombadil.20170209; h=In-Reply-To:Content-Type:MIME-Version :References:Message-ID:Subject:Cc:To:From:Date:Sender:Reply-To: Content-Transfer-Encoding:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Id: List-Help:List-Unsubscribe:List-Subscribe:List-Post:List-Owner:List-Archive; bh=XVg3WEDVJwS+Rc6X2CzYpeS0uGqDf8NasynHCDL2EA4=; b=hR99KKpRXaL7XZtqhFu7d93RE D6XVma6SrP1Qi5kG2e7xkg2MiA2UOMv8w8DCmjvifIACM0s45rW01et7J99fFiv3uPRoMqoUM03Y4 MNWBVzgrzpHCz2wBa+iB1KYHSzmjGdCm2ZPlb3gYp8BDuKA2yM6w7jpx2RpOxyKJsQ46rN4jZlrLF wg4nT3WiF+Bg9Cr/ZmN6NP86KdqouqoOBcyH5PsR+2thKFr2z8hvmhJ5QM0TYifm6lqeLzqqnq3Xc XT/sOQ5pqw1E4LX21AkQiQiZekpYlHUIAvRXYq+HeIXLfUewyZ7TGiGNWDSnzQaWE0GuHan+UICPI al/F3DZmg==; Received: from willy by bombadil.infradead.org with local (Exim 4.90_1 #2 (Red Hat Linux)) id 1gZEJD-0004vz-0h; Tue, 18 Dec 2018 12:17:11 +0000 Date: Tue, 18 Dec 2018 04:17:10 -0800 From: Matthew Wilcox To: kernel test robot Cc: linux-kernel@vger.kernel.org, LKP Subject: Re: [LKP] 5404a7f1c2 [ 90.902541] watchdog: BUG: soft lockup - CPU#0 stuck for 22s! [swapper:1] Message-ID: <20181218121710.GT10600@bombadil.infradead.org> References: <20181218002028.GG23332@shao2-debian> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20181218002028.GG23332@shao2-debian> User-Agent: Mutt/1.9.2 (2017-12-15) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Tue, Dec 18, 2018 at 08:20:28AM +0800, kernel test robot wrote: > Greetings, > > 0day kernel testing robot got the below dmesg and the first bad commit is > > https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master > > commit 5404a7f1c21cfda061712bedf2d06cc0f6c755e9 I feel like you're wasting my time. This is the fourth time in a row you've reported something I can't reproduce. At least this time the instructions work, but I've tried it a dozen times and it doesn't produce the error you're showing. $ git branch * (HEAD detached at 5404a7f1c21c) ... [ 0.000000] Linux version 4.20.0-rc1-00012-g5404a7f1c21c (willy@bobo) (gcc version 8.2.0 (Debian 8.2.0-9)) #4 Mon Dec 17 23:28:21 EST 2018 ... [ 9.848471] test_uuid: all 18 tests passed [ 11.019267] XArray: 19496249 of 19496249 tests passed Your logs show it failing every time. I can't help but wonder if it's something else in your setup that's causing it to fail -- maybe the machines doing the testing are overloaded?