From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from casper.infradead.org (casper.infradead.org [90.155.50.34]) (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 8BF561DA4E for ; Thu, 12 Dec 2024 05:04:15 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=90.155.50.34 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1733979859; cv=none; b=ch6t8bBl+fNK4NpkfJ4MrIsuX061QBKOjanAY0uWFsrvapCYFW3ZMWG0scoZ5pu66/h0xcagy1kFKDS2RCgsY4MJU+aM5CdK4sRRXN61Nqsx/3Yoo1OV1IYz2dKB2eZeLIkegOqNYU6U30QBMJ3Bxzs3CYfmTSpa4d3rnUvziao= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1733979859; c=relaxed/simple; bh=qKJ3GjKoUK/asmXVKRKYo89Rmww33iIzwkSJvTJ79qI=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=GOLOZrZhyRx6g90z6pvUHLNaR0I7YN/wuzaUhYmmdGoEOirp82sLq/fzcOmKHsAco2/NZMounLsaRixq1AxWQ6qhKcROwgV3b+fwkH3OZvuJZjxWpp+6XSyrVG7AZsune7iG80S4Y5DQpNgnc2IeMII3NyNy79zT9qNlFLFQNvc= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=infradead.org; spf=none smtp.mailfrom=infradead.org; dkim=pass (2048-bit key) header.d=infradead.org header.i=@infradead.org header.b=LENiNzcK; arc=none smtp.client-ip=90.155.50.34 Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=infradead.org Authentication-Results: smtp.subspace.kernel.org; spf=none smtp.mailfrom=infradead.org Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=infradead.org header.i=@infradead.org header.b="LENiNzcK" 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=SgcPDGPuW4iluvrRpiyJGhFNveNEeMyNKqGJc0iYnRg=; b=LENiNzcKOHOsEvqj0M1jCdxF4d zfk9YjDVIHVuuTOlkQsLMTEmoz3EUurG3ki2h3/Pqi79PnIQUH+bkzK8AkWnCMvu4ltCfVrzKgh01 y7HggK1EGR1bjc0xrDnzOTUmlSaCbPH5hO5gyX+LIil89qGjc+kuiuuN29PNzZvlyczUYiekdPX82 F5MOo91gZUw2LOlOjWUiv6AxGp3tn3SwQgopn7Q6LoyooUmoPTSeWPgalDGEFpRfobR3O3QGee98M 6eeEiuCDktKvjdKzfjf3s4uBdkO12YP5jVBiVNDUGcPVnrfHqOmaBubvGCuPCaTsyJQKAzdAIzzYm psSjS42g==; Received: from willy by casper.infradead.org with local (Exim 4.98 #2 (Red Hat Linux)) id 1tLbMx-00000003Nbk-3SlW; Thu, 12 Dec 2024 05:04:11 +0000 Date: Thu, 12 Dec 2024 05:04:11 +0000 From: Matthew Wilcox To: "Lai, Yi" Cc: linux-kernel@vger.kernel.org, linux-mm@kvack.org, David Hildenbrand , syzkaller-bugs@googlegroups.com, yi1.lai@intel.com Subject: Re: There is WARNING in __alloc_frozen_pages_noprof in v6.13-rc2 Message-ID: References: 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, Dec 12, 2024 at 12:56:09PM +0800, Lai, Yi wrote: > Hi Matthew Wilcox, > > Greetings! > > I used Syzkaller and found that there is WARNING in __alloc_frozen_pages_noprof in linux v6.13-rc2. The bug is in the caller. You should do some initial investigation of the report, not just fire off an email.