From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [170.10.129.124]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 7DA501534F7 for ; Thu, 22 Feb 2024 15:41:35 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=170.10.129.124 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1708616497; cv=none; b=NhNwdvi9jEbCzAInrCYxpYYAsu3dA3DNmFAHA/g/zOz55/6fcDI9RAJ5Fvsls0OUl8c0QZgtUvmQyqTnk+LLwktPLCG+ulIqf5l33q0IhdSCcFr55ogpTXO7gQQNDYHAFuFgrAnUEBJxC0hy02L2hle/Zo6QZqSITNNzFQ640ig= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1708616497; c=relaxed/simple; bh=t2Y541NBTF20XK3dcuTaD4MfPwHo6wDUA3Kzlm90WZE=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=hp5ItQ0FHD1fGGIj4kPN3dry4TDKt82ckDkiRG7qeTvxbUx4qBvfVqhlO9rm9bLd9kXZa+vLRK92kchkvMPlMyDpDXFqulS4/w1kaNML9qcTH2RJnESPgSwQP6SLGnAZ20Q0tfvjBeUWKAbHpcWWZuhvxrL9Aij0KSu4GX/Nz7U= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=redhat.com; spf=pass smtp.mailfrom=redhat.com; dkim=pass (1024-bit key) header.d=redhat.com header.i=@redhat.com header.b=crVvQVJW; arc=none smtp.client-ip=170.10.129.124 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=redhat.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=redhat.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=redhat.com header.i=@redhat.com header.b="crVvQVJW" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1708616494; 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=6ohgWeecE5sLvAbR1ati6o7mII8imwpShQzkYvL5vVU=; b=crVvQVJWUGcpe1JgVC0EWZHnRHjpTR4dbXeRghxifHmbyY1NQMSvtepavK/FjBTNjVjHU2 4bwWwqLKc2LaxBmx8nmFHOAwb9pYDBou1KBabRJ7pwT4CjLY/hAXwKt1rPgQw8Gmal/iET bAt3MmemMomzzdDFalOigVBLjNtTXDk= Received: from mail-wm1-f70.google.com (mail-wm1-f70.google.com [209.85.128.70]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.3, cipher=TLS_AES_256_GCM_SHA384) id us-mta-543-LyQuHO84Oiu55SD-XBk7DQ-1; Thu, 22 Feb 2024 10:41:32 -0500 X-MC-Unique: LyQuHO84Oiu55SD-XBk7DQ-1 Received: by mail-wm1-f70.google.com with SMTP id 5b1f17b1804b1-410422e8cd1so34003655e9.3 for ; Thu, 22 Feb 2024 07:41:32 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1708616491; x=1709221291; h=in-reply-to:content-disposition:mime-version:references:message-id :subject:cc:to:from:date:x-gm-message-state:from:to:cc:subject:date :message-id:reply-to; bh=6ohgWeecE5sLvAbR1ati6o7mII8imwpShQzkYvL5vVU=; b=R0bHTJDlYXxC2WYI1cYw13vCd6RxsOnwXXnvgh3jTcbDLlZz2dAo/fEZLL7ZMo4BNW iG762+pl7IA2pUrUW6epZJtZLBqP70YSaSxyJwuyTUfsjmFEq/GdfcKAe4SI8nPPN5yq RZlAtVLyi4cWQcfiGH5rTj+dRR0pX97RguiTmXTNetRaP8ZfUvTtPfdv1/rQ3dQxqhGg 5LlEz5nzFq6l//yiSKn+S2Fgaw3pE/Ngx+wnQ6TojoD8JexfiLETzLK0Jy3IT+rYmbni 4O6ALcrfmxn0MVG1odelmFnPznZwp0uk6ZAEzOM+0CultYt/16kfywOl8PhTi5fs0Ti2 V8Hw== X-Forwarded-Encrypted: i=1; AJvYcCW4XarXqeYQ/Q9Wp6AsHspH1zLgv7UHuqTnAUYQpy2BkbA4ldZi1lc+QSqmHOEnbiXrF0yczBx9ENooUwAnAzk/XdFRz9hatIncLSTP X-Gm-Message-State: AOJu0YykXCqOupIME6zTkS9ISBQQrhcGGgbM8rigTxbXcDV9iEGz0khw cqVoQd9uWHDbgeTB9tVZOxry3ClHTvLyBfgV9zXNb0T40knsqonZK92f9cfCS91/m5RNDhvEbOb CYrWbTZenKoM5tvvIHFGAuKBbxKN7dH+d9c2XQxoOBZhBTkyb6ZsrSTI6sX5aog== X-Received: by 2002:a05:600c:4f82:b0:411:e6fd:4ad with SMTP id n2-20020a05600c4f8200b00411e6fd04admr17000829wmq.5.1708616491547; Thu, 22 Feb 2024 07:41:31 -0800 (PST) X-Google-Smtp-Source: AGHT+IHtqkR0KaYBzcVyqpjgYX963S7RxaFGa+tK0UVfi315EcYLlqk4dk7ACCc6QXbmqO7Qpvbbag== X-Received: by 2002:a05:600c:4f82:b0:411:e6fd:4ad with SMTP id n2-20020a05600c4f8200b00411e6fd04admr17000815wmq.5.1708616491215; Thu, 22 Feb 2024 07:41:31 -0800 (PST) Received: from redhat.com ([2a06:c701:73fa:1600:1669:f0ad:816d:4f7]) by smtp.gmail.com with ESMTPSA id y17-20020a05600c365100b004126101915esm6463325wmq.4.2024.02.22.07.41.29 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 22 Feb 2024 07:41:30 -0800 (PST) Date: Thu, 22 Feb 2024 10:41:27 -0500 From: "Michael S. Tsirkin" To: Lei Yang Cc: syzbot , jasowang@redhat.com, linux-kernel@vger.kernel.org, linux-next@vger.kernel.org, sfr@canb.auug.org.au, syzkaller-bugs@googlegroups.com, virtualization@lists.linux.dev, xuanzhuo@linux.alibaba.com, Andrew Morton , linux-mm@kvack.org Subject: Re: [syzbot] [virtualization?] linux-next boot error: WARNING: refcount bug in __free_pages_ok Message-ID: <20240222103932-mutt-send-email-mst@kernel.org> References: <000000000000d305050611b50d09@google.com> <20240219022853-mutt-send-email-mst@kernel.org> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: On Thu, Feb 22, 2024 at 11:06:55AM +0800, Lei Yang wrote: > Hi All > > I hit a similar issue when doing a regression testing from my side. > For the error messages please help review the attachment. > > The latest commit: > commit c02197fc9076e7d991c8f6adc11759c5ba52ddc6 (HEAD -> master, > origin/master, origin/HEAD) > Merge: f2667e0c3240 0846dd77c834 > Author: Linus Torvalds > Date: Sat Feb 17 16:59:31 2024 -0800 > > Merge tag 'powerpc-6.8-3' of > git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux > > Pull powerpc fixes from Michael Ellerman: > "This is a bit of a big batch for rc4, but just due to holiday hangover > and because I didn't send any fixes last week due to a late revert > request. I think next week should be back to normal. > > Regards > Lei It all looks like a generic bug dealing with some refcounting in the allocator. So, a chance of a bisect there? -- MST