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

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

2015-09-03 Thread Wei Liu
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. Both 3.14 tests [2] [3] get the correct num