From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from out3-smtp.messagingengine.com ([66.111.4.27]:51139 "EHLO out3-smtp.messagingengine.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753669AbcLNQrN (ORCPT ); Wed, 14 Dec 2016 11:47:13 -0500 Date: Wed, 14 Dec 2016 08:46:16 -0800 From: Greg KH To: Ian Jackson Cc: Michal Hocko , xen-devel@lists.xensource.com, Lukasz Odzioba , Kirill Shutemov , Andrea Arcangeli , Vladimir Davydov , Ming Li , Minchan Kim , stable@vger.kernel.org, Andrew Morton , Linus Torvalds , Sasha Levin Subject: Re: Regression due to "mm/swap.c: flush lru pvecs on compound page arrival" Message-ID: <20161214164616.GD14036@kroah.com> References: <22609.18772.521248.918298@mariner.uk.xensource.com> <20161214133958.GK25573@dhcp22.suse.cz> <22609.25070.81853.849402@mariner.uk.xensource.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <22609.25070.81853.849402@mariner.uk.xensource.com> Sender: stable-owner@vger.kernel.org List-ID: On Wed, Dec 14, 2016 at 03:14:54PM +0000, Ian Jackson wrote: > Michal Hocko writes ("Re: Regression due to "mm/swap.c: flush lru pvecs on compound page arrival""): > > On Wed 14-12-16 13:29:56, Ian Jackson wrote: > > > This commit breaks the test "test-amd64-amd64-xl-qemut-win7-amd64" in > > > the Xen Project CI system. > > > > Could you be more specific about the regression please? > > The effect seems to be that it causes some kind of OOM condition > during boot under Xen: > > Dec 14 08:00:04.637998 [ 22.584134] Out of memory: Kill process 2747 > (exim4) score 2 or sacrifice child > > It's not quite clear to me but I think the problem may be hardware > specific. > > Full logs are available here: > > > > > Last fail repro: http://logs.test-lab.xenproject.org/osstest/logs/103315/ > > See in particular this, which is the host serial console output: > > http://logs.test-lab.xenproject.org/osstest/logs/103315/test-amd64-amd64-xl-qemut-win7-amd64/serial-elbling1.log > > Start reading at Dec 14 07:59:33.478093. At Dec 14 08:01:38.294433 a > log capture process started sending various debug keys to the console. And is this also an issue in Linus's tree? thanks, greg k-h From mboxrd@z Thu Jan 1 00:00:00 1970 From: Greg KH Subject: Re: Regression due to "mm/swap.c: flush lru pvecs on compound page arrival" Date: Wed, 14 Dec 2016 08:46:16 -0800 Message-ID: <20161214164616.GD14036@kroah.com> References: <22609.18772.521248.918298@mariner.uk.xensource.com> <20161214133958.GK25573@dhcp22.suse.cz> <22609.25070.81853.849402@mariner.uk.xensource.com> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Return-path: Content-Disposition: inline In-Reply-To: <22609.25070.81853.849402@mariner.uk.xensource.com> List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Errors-To: xen-devel-bounces@lists.xen.org Sender: "Xen-devel" To: Ian Jackson Cc: Andrea Arcangeli , Vladimir Davydov , xen-devel@lists.xensource.com, Ming Li , stable@vger.kernel.org, Michal Hocko , Minchan Kim , Lukasz Odzioba , Sasha Levin , Andrew Morton , Linus Torvalds , Kirill Shutemov List-Id: xen-devel@lists.xenproject.org T24gV2VkLCBEZWMgMTQsIDIwMTYgYXQgMDM6MTQ6NTRQTSArMDAwMCwgSWFuIEphY2tzb24gd3Jv dGU6Cj4gTWljaGFsIEhvY2tvIHdyaXRlcyAoIlJlOiBSZWdyZXNzaW9uIGR1ZSB0byAibW0vc3dh cC5jOiBmbHVzaCBscnUgcHZlY3Mgb24gY29tcG91bmQgcGFnZSBhcnJpdmFsIiIpOgo+ID4gT24g V2VkIDE0LTEyLTE2IDEzOjI5OjU2LCBJYW4gSmFja3NvbiB3cm90ZToKPiA+ID4gVGhpcyBjb21t aXQgYnJlYWtzIHRoZSB0ZXN0ICJ0ZXN0LWFtZDY0LWFtZDY0LXhsLXFlbXV0LXdpbjctYW1kNjQi IGluCj4gPiA+IHRoZSBYZW4gUHJvamVjdCBDSSBzeXN0ZW0uCj4gPiAKPiA+IENvdWxkIHlvdSBi ZSBtb3JlIHNwZWNpZmljIGFib3V0IHRoZSByZWdyZXNzaW9uIHBsZWFzZT8KPiAKPiBUaGUgZWZm ZWN0IHNlZW1zIHRvIGJlIHRoYXQgaXQgY2F1c2VzIHNvbWUga2luZCBvZiBPT00gY29uZGl0aW9u Cj4gZHVyaW5nIGJvb3QgdW5kZXIgWGVuOgo+IAo+IERlYyAxNCAwODowMDowNC42Mzc5OTggWyAg IDIyLjU4NDEzNF0gT3V0IG9mIG1lbW9yeTogS2lsbCBwcm9jZXNzIDI3NDcKPiAoZXhpbTQpIHNj b3JlIDIgb3Igc2FjcmlmaWNlIGNoaWxkCj4gCj4gSXQncyBub3QgcXVpdGUgY2xlYXIgdG8gbWUg YnV0IEkgdGhpbmsgdGhlIHByb2JsZW0gbWF5IGJlIGhhcmR3YXJlCj4gc3BlY2lmaWMuCj4gCj4g RnVsbCBsb2dzIGFyZSBhdmFpbGFibGUgaGVyZToKPiAKPiA+ID4gPiAgIExhc3QgZmFpbCByZXBy bzogaHR0cDovL2xvZ3MudGVzdC1sYWIueGVucHJvamVjdC5vcmcvb3NzdGVzdC9sb2dzLzEwMzMx NS8KPiAKPiBTZWUgaW4gcGFydGljdWxhciB0aGlzLCB3aGljaCBpcyB0aGUgaG9zdCBzZXJpYWwg Y29uc29sZSBvdXRwdXQ6Cj4gCj4gaHR0cDovL2xvZ3MudGVzdC1sYWIueGVucHJvamVjdC5vcmcv b3NzdGVzdC9sb2dzLzEwMzMxNS90ZXN0LWFtZDY0LWFtZDY0LXhsLXFlbXV0LXdpbjctYW1kNjQv c2VyaWFsLWVsYmxpbmcxLmxvZwo+IAo+IFN0YXJ0IHJlYWRpbmcgYXQgRGVjIDE0IDA3OjU5OjMz LjQ3ODA5My4gIEF0IERlYyAxNCAwODowMTozOC4yOTQ0MzMgYQo+IGxvZyBjYXB0dXJlIHByb2Nl c3Mgc3RhcnRlZCBzZW5kaW5nIHZhcmlvdXMgZGVidWcga2V5cyB0byB0aGUgY29uc29sZS4KCkFu ZCBpcyB0aGlzIGFsc28gYW4gaXNzdWUgaW4gTGludXMncyB0cmVlPwoKdGhhbmtzLAoKZ3JlZyBr LWgKCl9fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fClhlbi1k ZXZlbCBtYWlsaW5nIGxpc3QKWGVuLWRldmVsQGxpc3RzLnhlbi5vcmcKaHR0cHM6Ly9saXN0cy54 ZW4ub3JnL3hlbi1kZXZlbAo=