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 9809BC433FE for ; Thu, 31 Mar 2022 18:45:49 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S236681AbiCaSrf (ORCPT ); Thu, 31 Mar 2022 14:47:35 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:33960 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S237019AbiCaSra (ORCPT ); Thu, 31 Mar 2022 14:47:30 -0400 Received: from mail-pl1-x635.google.com (mail-pl1-x635.google.com [IPv6:2607:f8b0:4864:20::635]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 64E50234560 for ; Thu, 31 Mar 2022 11:45:41 -0700 (PDT) Received: by mail-pl1-x635.google.com with SMTP id x2so382553plm.7 for ; Thu, 31 Mar 2022 11:45:41 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20210112; h=date:from:to:cc:subject:message-id:references:mime-version :content-disposition:in-reply-to; bh=p0VBDObDoFUONnWI9F1/+zvgmxSX/U3+Op0djrNZ6+Y=; b=tEWlML2VMYg3LF9jB/Et4JGlYfjVS9pVUo/fDlqbCKzTkSkq6GGaHSb/gBxTcIKDQP Sq3xeikKPcVd5Ah2H6UAKluUf7dSi86OTSEBiH9Bes1ELGs2Gshlt6iXyCPW0IGODBkG DEjOHj9KLh9XPUYM+jWrE4CUddNvJW3jE9BTe2bfdfpWaukuUpeyBi4sBHXuEBZpZ7i3 rVu/EB/6ivKS8kGNRjnagiO5djB6oRKOCjM/NoUKaI2TsnwAOGJwfic3hQUMrymRNITP 6xQF8+WV+LU3Y7R6KxP+GucOIT5zZaDnrSIiszQML1BggJlJw0bAfGHTyNn8n8uVs1/H sSVQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:date:from:to:cc:subject:message-id:references :mime-version:content-disposition:in-reply-to; bh=p0VBDObDoFUONnWI9F1/+zvgmxSX/U3+Op0djrNZ6+Y=; b=DXN/3Shgb8XhG4Os6AwkAldv0gPxY9ZvCyhVQezVFleXrcfVwV1dn68b2tR3KGnS7T vtwcGmOGZsU2tY9zv153+hHfE7W/H++tTlk4/cqsBa0z34Q9dlvjmrGFUK+zR6LOFNK+ KaO3KzMYcXSG8/Rc4VJCbmvXJgN7NmpsUQ8G1RyISNLmf5tmDH/Jntmqm+zBFiS+HDQn 4l15D7K9liMDBDpyUCb6ugzWeq2idMq02kL0Xw9PjletwjMKItzBa1jwdHc+7kxF1XB5 Z4T5JMQCggTWRFBs2cOWOf7KzWCWHk35VPLUHHqfuAnGx4l/ZRzOXzickcr1LQ0YQj9/ zl0A== X-Gm-Message-State: AOAM532y5cFWVotleziuVDqm1FDqec0dc7i7kKWjL54rFro7/bSaFNP8 oBZAYU82IZB9yhESI/i/1XbQCg== X-Google-Smtp-Source: ABdhPJw7j6WOuvK4kl+s/hZ1aeTMuDftyemuxNuoMU64veTxp870Hem95njAys6VqCILAsYfpfwgfw== X-Received: by 2002:a17:902:f78d:b0:14f:ce61:eaf2 with SMTP id q13-20020a170902f78d00b0014fce61eaf2mr6753898pln.124.1648752340665; Thu, 31 Mar 2022 11:45:40 -0700 (PDT) Received: from google.com (157.214.185.35.bc.googleusercontent.com. [35.185.214.157]) by smtp.gmail.com with ESMTPSA id fy9-20020a17090b020900b001c690bc05c4sm96606pjb.0.2022.03.31.11.45.39 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 31 Mar 2022 11:45:40 -0700 (PDT) Date: Thu, 31 Mar 2022 18:45:36 +0000 From: Sean Christopherson To: Jan Stancek Cc: Bruno Goncalves , kvm , "Bonzini, Paolo" , lkml , CKI Project , Li Wang Subject: Re: RIP: 0010:param_get_bool.cold+0x0/0x2 - LTP read_all_sys - 5.17.0 Message-ID: References: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: Precedence: bulk List-ID: X-Mailing-List: kvm@vger.kernel.org On Thu, Mar 31, 2022, Sean Christopherson wrote: > On Wed, Mar 30, 2022, Jan Stancek wrote: > > +CC kvm > > > > Issue seems to be that nx_huge_pages is not initialized (-1) and > > attempted to be used as boolean when reading > > /sys/module/kvm/parameters/nx_huge_pages > > Ugh, CONFIG_UBSAN_BOOL=y complains about a bool not being 0 or 1. What a pain. Side topic, any idea why your traces don't have the UBSAN output? I verified that it's not a panic_on_warn thing. Having the UBSAN output in future bug reports would be very helpful. [ 13.150244] ================================================================================ [ 13.150780] UBSAN: invalid-load in kernel/params.c:320:33 [ 13.151192] load of value 255 is not a valid value for type '_Bool' [ 13.152079] ================================================================================