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[2620:137:e000::1:20]) by mx.google.com with ESMTP id k17-20020a170902ba9100b001b3e8b1d5c7si3494736pls.260.2023.06.14.08.28.03; Wed, 14 Jun 2023 08:28:16 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) client-ip=2620:137:e000::1:20; Authentication-Results: mx.google.com; dkim=pass header.i=@infradead.org header.s=casper.20170209 header.b="d/xBgTi9"; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1343613AbjFNPT3 (ORCPT + 99 others); Wed, 14 Jun 2023 11:19:29 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:57858 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1343524AbjFNPT1 (ORCPT ); Wed, 14 Jun 2023 11:19:27 -0400 Received: from casper.infradead.org (casper.infradead.org [IPv6:2001:8b0:10b:1236::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 2E816C7 for ; Wed, 14 Jun 2023 08:19:26 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=casper.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; bh=dHebVBBXxeCEnUn6koWWLEwMxL08aFziCNICAn86fcI=; b=d/xBgTi9yThHY2HsE9TpwATP9G WJgT2F/ONFoDw0hhz0d/oGDrem+IKjaq7uEp2PK0w5OvYnaZzppHWo3eVm6TviQQ2Ex491OPb5GeZ JlyZSYwwTjAufx9FOC+ZSAfdzVDyMsQKGti4uPJPQjj4R3CetO2J1t8rXVrYd4DqWHOwVj9znaRhu 54z+2Iy0gWctmbWs31XCJjawv37s01RbfqEi4FX/CD2RTXlbHyPVv7mOu28b+f0GIQWmBl6uM576E Eb/RwT4VU3P8Yj44a5TE7k78uQ/g+AdBi+RKJB5BEpGu9aX/1/OxxhXbmp/Mo/y5cFkeYJ91KIvFo vLW0NjMw==; Received: from j130084.upc-j.chello.nl ([24.132.130.84] helo=noisy.programming.kicks-ass.net) by casper.infradead.org with esmtpsa (Exim 4.94.2 #2 (Red Hat Linux)) id 1q9SHI-006Sz3-Si; Wed, 14 Jun 2023 15:19:22 +0000 Received: from hirez.programming.kicks-ass.net (hirez.programming.kicks-ass.net [192.168.1.225]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits)) (Client did not present a certificate) by noisy.programming.kicks-ass.net (Postfix) with ESMTPS id 68F28300195; Wed, 14 Jun 2023 17:19:20 +0200 (CEST) Received: by hirez.programming.kicks-ass.net (Postfix, from userid 1000) id 523F3240FDF97; Wed, 14 Jun 2023 17:19:20 +0200 (CEST) Date: Wed, 14 Jun 2023 17:19:20 +0200 From: Peter Zijlstra To: "Richard W.M. Jones" Cc: Aaron Thompson , linux-kernel@vger.kernel.org Subject: Re: printk.time causes rare kernel boot hangs Message-ID: <20230614151920.GN1639749@hirez.programming.kicks-ass.net> References: <20230614092158.GF1639749@hirez.programming.kicks-ass.net> <20230614094522.GA7636@redhat.com> <20230614103011.GL7912@redhat.com> <20230614103953.GM7912@redhat.com> <20230614113536.GJ1639749@hirez.programming.kicks-ass.net> <20230614125320.GA1640563@hirez.programming.kicks-ass.net> <20230614130348.GF7636@redhat.com> <20230614130945.GK1639749@hirez.programming.kicks-ass.net> <20230614145348.GB1640563@hirez.programming.kicks-ass.net> <20230614150717.GG7636@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20230614150717.GG7636@redhat.com> X-Spam-Status: No, score=-4.4 required=5.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,RCVD_IN_DNSWL_MED,SPF_HELO_NONE, SPF_NONE,T_SCC_BODY_TEXT_LINE,URIBL_BLOCKED autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Wed, Jun 14, 2023 at 04:07:17PM +0100, Richard W.M. Jones wrote: > On Wed, Jun 14, 2023 at 04:53:48PM +0200, Peter Zijlstra wrote: > > Clearly I'm doing something wrong. > > I'm suspecting version of qemu may have something to do with it, but > honestly I don't know. Which qemu are you using? ivb-ep: QEMU emulator version 7.2.0 (Debian 1:7.2+dfsg-3) adl: QEMU emulator version 7.2.0 (Debian 1:7.2+dfsg-1+b2) I'll try and upgrade the adl to 8.