From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (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 7817D58105; Tue, 13 Feb 2024 14:50:03 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1707835803; cv=none; b=Bnc0QRdNNNsLrxE/Dq+1P7MnQfkDHYaYIqZt6PPiuWAdyrf5hki7vY2qld4wlSp3hAW27Im9k6NlCWNgjdMdia5m+cbotQXCmA12kRHQ/hVNzHv3CIttcjXLtr7K/XBHp0QhjRurvTVaoNwMYr2AjRR4deIEdiG8NMx+YHxE65Q= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1707835803; c=relaxed/simple; bh=AfXNvoDPfGxO4Tl8E8xiaQRy/lU+RIhza61C8gLWqgw=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=tU8I8nUbyIyf14Zc9RU6xhyiIiIlVRxlI6ykoGpZvBkYKktfvwnyPZd7tECjX+gFhta4hT+J32mV68mSSVKR2aMKxDL1x78dgaMbpFFLy4TnKJZT0zs8XkGij35uS8nmLJHMEsQ79BZyLMljftUdnjeLGLSv53Cx3HO052YBWuo= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=w8bAWb1u; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b="w8bAWb1u" Received: by smtp.kernel.org (Postfix) with ESMTPSA id B0B44C43390; Tue, 13 Feb 2024 14:50:02 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1707835803; bh=AfXNvoDPfGxO4Tl8E8xiaQRy/lU+RIhza61C8gLWqgw=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=w8bAWb1ukEFNJfV6I2vn9aEwQWg/6XlUcLZXRxIfEHyaq/vDunwdWzBzqwvRy2JZC 5YZNHPpJJMmkwg/F54tsVm13wCIJAwJPBcZYFLnyle0g6oRhilqmDU6qfC5DAda5Tz GmSKMn1lNhq5em/cXN5EWFt7A+5ctRgLZtbzHI7g= Date: Tue, 13 Feb 2024 15:50:00 +0100 From: Greg KH To: Linux regressions mailing list Cc: Sasha Levin , David Laight , "stable@vger.kernel.org" , LKML Subject: Re: [regression] linux-6.6.y, minmax: virtual memory exhausted in i586 chroot during kernel compilation Message-ID: <2024021318-shifty-daybed-fca8@gregkh> References: Precedence: bulk X-Mailing-List: stable@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 Mon, Feb 12, 2024 at 05:16:58PM +0100, Linux regression tracking (Thorsten Leemhuis) wrote: > Hi Greg, Sasha, and David, > > I noticed a regression report in bugzilla.kernel.org that seems to be > specific to the linux-6.6.y series: > > Quoting from https://bugzilla.kernel.org/show_bug.cgi?id=218484 : > > > After upgrading to version 6.6.16, the kernel compilation on a i586 > > arch (on a 32bit chroot in a 64bit host) fails with a message: > > > > virtual memory exhausted: Cannot allocate memory > > > > this happens even lowering the number of parallel compilation > > threads. On a x86_64 arch the same problem doesn't occur. It's not > > clear whether some weird recursion is triggered that exhausts the > > memory, but it seems that the problem is caused by the patchset > > 'minmax' added to the 6.6.16 version, in particular it seems caused > > by these patches: > > > > - minmax-allow-min-max-clamp-if-the-arguments-have-the-same-signedness.patch > > - minmax-fix-indentation-of-__cmp_once-and-__clamp_once.patch > > - minmax-allow-comparisons-of-int-against-unsigned-char-short.patch > > - minmax-relax-check-to-allow-comparison-between-unsigned-arguments-and-signed-constants.patch > > > > Reverting those patches fixes the memory exhaustion problem during compilation. > > The reporter later added: > > > From a quick test the same problem doesn't occur in 6.8-rc4. > See the ticket for more details. > > Note, you have to use bugzilla to reach the reporter, as I sadly[1] can > not CCed them in mails like this. > > [TLDR for the rest of this mail: I'm adding this report to the list of > tracked Linux kernel regressions; the text you find below is based on a > few templates paragraphs you might have encountered already in similar > form.] > > BTW, let me use this mail to also add the report to the list of tracked > regressions to ensure it's doesn't fall through the cracks: > > #regzbot introduced: 204c653d5d0c79940..9487d93f172acef > https://bugzilla.kernel.org/show_bug.cgi?id=218484 > #regzbot title: minmax: virtual memory exhausted in 6.6.16 with i586 chroot > #regzbot ignore-activity > > Ciao, Thorsten (wearing his 'the Linux kernel's regression tracker' hat) > -- > Everything you wanna know about Linux kernel regression tracking: > https://linux-regtracking.leemhuis.info/about/#tldr > If I did something stupid, please tell me, as explained on that page. > > [1] because bugzilla.kernel.org tells users upon registration their > "email address will never be displayed to logged out users" I think this was already fixed in 6.7 or Linus's tree, but I can't seem to find the commit at the moment. What file is causing the compiler to crash? Is it some video or media driver? thanks, greg k-h