Re: [Xen-devel] Linux 4.1 reports wrong number of pages to toolstack

2015-09-07 Thread Jan Beulich
>>> On 04.09.15 at 10:53, wrote: > I have set the adhoc bisector working on the ~200 commits between rc3 and > rc4. It's running in the Citrix instance (which is quieter) so the interim > results are only visible within our network at http://osstest.xs.citrite.ne > t/~osstest/testlogs/results-adh

Re: [Xen-devel] Linux 4.1 reports wrong number of pages to toolstack

2015-09-04 Thread Andrew Cooper
On 04/09/15 20:46, Wei Liu wrote: When I looked at write_batch() I found some snippets that I thought to be wrong. But I didn't what to make the judgement when I didn't have a clear head. write_batch() is a complicated function but it can't usefully be split any further. I would be happy to e

Re: [Xen-devel] Linux 4.1 reports wrong number of pages to toolstack

2015-09-04 Thread Wei Liu
On Fri, Sep 04, 2015 at 07:39:27PM +0100, Andrew Cooper wrote: > > > On 04/09/15 12:35, Wei Liu wrote: > >On Fri, Sep 04, 2015 at 10:35:52AM +0100, Andrew Cooper wrote: > >>On 04/09/15 09:28, Jan Beulich wrote: > >>On 04.09.15 at 05:38, wrote: > On 09/04/2015 02:40 AM, Wei Liu wrote: > >

Re: [Xen-devel] Linux 4.1 reports wrong number of pages to toolstack

2015-09-04 Thread Andrew Cooper
On 04/09/15 12:35, Wei Liu wrote: On Fri, Sep 04, 2015 at 10:35:52AM +0100, Andrew Cooper wrote: On 04/09/15 09:28, Jan Beulich wrote: On 04.09.15 at 05:38, wrote: On 09/04/2015 02:40 AM, Wei Liu wrote: This issue is exposed by the introduction of migration v2. The symptom is that a guest

Re: [Xen-devel] Linux 4.1 reports wrong number of pages to toolstack

2015-09-04 Thread David Vrabel
On 04/09/15 15:53, Wei Liu wrote: > On Fri, Sep 04, 2015 at 03:42:06PM +0100, David Vrabel wrote: >> On 04/09/15 09:53, Ian Campbell wrote: >>> On Fri, 2015-09-04 at 01:40 +0100, Wei Liu wrote: Hi David This issue is exposed by the introduction of migration v2. The symptom is t

Re: [Xen-devel] Linux 4.1 reports wrong number of pages to toolstack

2015-09-04 Thread Wei Liu
On Fri, Sep 04, 2015 at 03:42:06PM +0100, David Vrabel wrote: > On 04/09/15 09:53, Ian Campbell wrote: > > On Fri, 2015-09-04 at 01:40 +0100, Wei Liu wrote: > >> Hi David > >> > >> This issue is exposed by the introduction of migration v2. The symptom is > >> that > >> a guest with 32 bit 4.1 kern

Re: [Xen-devel] Linux 4.1 reports wrong number of pages to toolstack

2015-09-04 Thread David Vrabel
On 04/09/15 09:53, Ian Campbell wrote: > On Fri, 2015-09-04 at 01:40 +0100, Wei Liu wrote: >> Hi David >> >> This issue is exposed by the introduction of migration v2. The symptom is >> that >> a guest with 32 bit 4.1 kernel can't be restored because it's asking for too >> many pages. > > FWIW my

Re: [Xen-devel] Linux 4.1 reports wrong number of pages to toolstack

2015-09-04 Thread Wei Liu
On Fri, Sep 04, 2015 at 02:28:41AM -0600, Jan Beulich wrote: > >>> On 04.09.15 at 05:38, wrote: > > On 09/04/2015 02:40 AM, Wei Liu wrote: > >> This issue is exposed by the introduction of migration v2. The symptom is > >> that > >> a guest with 32 bit 4.1 kernel can't be restored because it's as

Re: [Xen-devel] Linux 4.1 reports wrong number of pages to toolstack

2015-09-04 Thread Wei Liu
On Fri, Sep 04, 2015 at 10:35:52AM +0100, Andrew Cooper wrote: > On 04/09/15 09:28, Jan Beulich wrote: > On 04.09.15 at 05:38, wrote: > >>On 09/04/2015 02:40 AM, Wei Liu wrote: > >>>This issue is exposed by the introduction of migration v2. The symptom is > >>>that > >>>a guest with 32 bit 4.

Re: [Xen-devel] Linux 4.1 reports wrong number of pages to toolstack

2015-09-04 Thread Andrew Cooper
On 04/09/15 09:28, Jan Beulich wrote: On 04.09.15 at 05:38, wrote: On 09/04/2015 02:40 AM, Wei Liu wrote: This issue is exposed by the introduction of migration v2. The symptom is that a guest with 32 bit 4.1 kernel can't be restored because it's asking for too many pages. Note that all guest

Re: [Xen-devel] Linux 4.1 reports wrong number of pages to toolstack

2015-09-04 Thread Ian Campbell
On Fri, 2015-09-04 at 09:53 +0100, Ian Campbell wrote: > I have set the adhoc bisector working on the ~200 commits between rc3 and > rc4. It's running in the Citrix instance (which is quieter) so the interim > results are only visible within our network at http://osstest.xs.citrite.ne > t/~osstest/

Re: [Xen-devel] Linux 4.1 reports wrong number of pages to toolstack

2015-09-04 Thread Ian Campbell
On Fri, 2015-09-04 at 01:40 +0100, Wei Liu wrote: > Hi David > > This issue is exposed by the introduction of migration v2. The symptom is that > a guest with 32 bit 4.1 kernel can't be restored because it's asking for too > many pages. FWIW my adhoc tests overnight gave me: 37858: b953c0d234bc7

Re: [Xen-devel] Linux 4.1 reports wrong number of pages to toolstack

2015-09-04 Thread Jan Beulich
>>> On 04.09.15 at 05:38, wrote: > On 09/04/2015 02:40 AM, Wei Liu wrote: >> This issue is exposed by the introduction of migration v2. The symptom is >> that >> a guest with 32 bit 4.1 kernel can't be restored because it's asking for too >> many pages. >> >> Note that all guests have 512MB memor

Re: [Xen-devel] Linux 4.1 reports wrong number of pages to toolstack

2015-09-03 Thread Juergen Gross
On 09/04/2015 02:40 AM, Wei Liu wrote: Hi David This issue is exposed by the introduction of migration v2. The symptom is that a guest with 32 bit 4.1 kernel can't be restored because it's asking for too many pages. Note that all guests have 512MB memory, which means they have 131072 pages. Bo