Re: [Xen-devel] null domains after xl destroy

2017-05-15 Thread Steven Haigh
On 2017-05-16 10:49, Glenn Enright wrote: On 15/05/17 21:57, Juergen Gross wrote: On 13/05/17 06:02, Glenn Enright wrote: On 09/05/17 21:24, Roger Pau Monné wrote: On Mon, May 08, 2017 at 11:10:24AM +0200, Juergen Gross wrote: On 04/05/17 00:17, Glenn Enright wrote: On 04/05/17 04:58, Steven

Re: [Xen-devel] null domains after xl destroy

2017-05-15 Thread Glenn Enright
On 15/05/17 21:57, Juergen Gross wrote: On 13/05/17 06:02, Glenn Enright wrote: On 09/05/17 21:24, Roger Pau Monné wrote: On Mon, May 08, 2017 at 11:10:24AM +0200, Juergen Gross wrote: On 04/05/17 00:17, Glenn Enright wrote: On 04/05/17 04:58, Steven Haigh wrote: On 04/05/17 01:53, Juergen G

Re: [Xen-devel] null domains after xl destroy

2017-05-15 Thread Juergen Gross
On 13/05/17 06:02, Glenn Enright wrote: > On 09/05/17 21:24, Roger Pau Monné wrote: >> On Mon, May 08, 2017 at 11:10:24AM +0200, Juergen Gross wrote: >>> On 04/05/17 00:17, Glenn Enright wrote: On 04/05/17 04:58, Steven Haigh wrote: > On 04/05/17 01:53, Juergen Gross wrote: >> On 03/05

Re: [Xen-devel] null domains after xl destroy

2017-05-12 Thread Glenn Enright
On 09/05/17 21:24, Roger Pau Monné wrote: On Mon, May 08, 2017 at 11:10:24AM +0200, Juergen Gross wrote: On 04/05/17 00:17, Glenn Enright wrote: On 04/05/17 04:58, Steven Haigh wrote: On 04/05/17 01:53, Juergen Gross wrote: On 03/05/17 12:45, Steven Haigh wrote: Just wanted to give this a li

Re: [Xen-devel] null domains after xl destroy

2017-05-09 Thread Roger Pau Monné
On Mon, May 08, 2017 at 11:10:24AM +0200, Juergen Gross wrote: > On 04/05/17 00:17, Glenn Enright wrote: > > On 04/05/17 04:58, Steven Haigh wrote: > >> On 04/05/17 01:53, Juergen Gross wrote: > >>> On 03/05/17 12:45, Steven Haigh wrote: > Just wanted to give this a little nudge now people see

Re: [Xen-devel] null domains after xl destroy

2017-05-08 Thread Juergen Gross
On 04/05/17 00:17, Glenn Enright wrote: > On 04/05/17 04:58, Steven Haigh wrote: >> On 04/05/17 01:53, Juergen Gross wrote: >>> On 03/05/17 12:45, Steven Haigh wrote: Just wanted to give this a little nudge now people seem to be back on deck... >>> >>> Glenn, could you please give the att

Re: [Xen-devel] null domains after xl destroy

2017-05-03 Thread Glenn Enright
On 04/05/17 04:58, Steven Haigh wrote: On 04/05/17 01:53, Juergen Gross wrote: On 03/05/17 12:45, Steven Haigh wrote: Just wanted to give this a little nudge now people seem to be back on deck... Glenn, could you please give the attached patch a try? It should be applied on top of the other

Re: [Xen-devel] null domains after xl destroy

2017-05-03 Thread Steven Haigh
On 04/05/17 01:53, Juergen Gross wrote: > On 03/05/17 12:45, Steven Haigh wrote: >> Just wanted to give this a little nudge now people seem to be back on >> deck... > > Glenn, could you please give the attached patch a try? > > It should be applied on top of the other correction, the old debug >

Re: [Xen-devel] null domains after xl destroy

2017-05-03 Thread Juergen Gross
On 03/05/17 12:45, Steven Haigh wrote: > Just wanted to give this a little nudge now people seem to be back on > deck... Glenn, could you please give the attached patch a try? It should be applied on top of the other correction, the old debug patch should not be applied. I have added some debug

Re: [Xen-devel] null domains after xl destroy

2017-05-03 Thread Juergen Gross
On 03/05/17 12:45, Steven Haigh wrote: > Just wanted to give this a little nudge now people seem to be back on > deck... Things seem to be more complicated than I thought. There are clearly paths leading to use-after-free scenarios, e.g. the one of the backtrace below: xen_blkbk_remove() will fr

Re: [Xen-devel] null domains after xl destroy

2017-05-03 Thread Steven Haigh
Just wanted to give this a little nudge now people seem to be back on deck... On 01/05/17 10:55, Glenn Enright wrote: > On 19/04/17 22:09, Juergen Gross wrote: >> On 19/04/17 09:16, Roger Pau Monné wrote: >>> On Wed, Apr 19, 2017 at 06:39:41AM +0200, Juergen Gross wrote: On 19/04/17 03:02, Gl

Re: [Xen-devel] null domains after xl destroy

2017-04-30 Thread Glenn Enright
On 19/04/17 22:09, Juergen Gross wrote: On 19/04/17 09:16, Roger Pau Monné wrote: On Wed, Apr 19, 2017 at 06:39:41AM +0200, Juergen Gross wrote: On 19/04/17 03:02, Glenn Enright wrote: Thanks Juergen. I applied that, to our 4.9.23 dom0 kernel, which still shows the issue. When replicating the

Re: [Xen-devel] null domains after xl destroy

2017-04-21 Thread Juergen Gross
On 21/04/17 10:42, Steven Haigh wrote: > On 20/04/17 02:22, Steven Haigh wrote: >> On 19/04/17 20:09, Juergen Gross wrote: >>> On 19/04/17 09:16, Roger Pau Monné wrote: On Wed, Apr 19, 2017 at 06:39:41AM +0200, Juergen Gross wrote: > On 19/04/17 03:02, Glenn Enright wrote: >> Thanks Ju

Re: [Xen-devel] null domains after xl destroy

2017-04-21 Thread Steven Haigh
On 20/04/17 02:22, Steven Haigh wrote: > On 19/04/17 20:09, Juergen Gross wrote: >> On 19/04/17 09:16, Roger Pau Monné wrote: >>> On Wed, Apr 19, 2017 at 06:39:41AM +0200, Juergen Gross wrote: On 19/04/17 03:02, Glenn Enright wrote: > Thanks Juergen. I applied that, to our 4.9.23 dom0 kern

Re: [Xen-devel] null domains after xl destroy

2017-04-19 Thread Steven Haigh
On 19/04/17 20:09, Juergen Gross wrote: > On 19/04/17 09:16, Roger Pau Monné wrote: >> On Wed, Apr 19, 2017 at 06:39:41AM +0200, Juergen Gross wrote: >>> On 19/04/17 03:02, Glenn Enright wrote: Thanks Juergen. I applied that, to our 4.9.23 dom0 kernel, which still shows the issue. When re

Re: [Xen-devel] null domains after xl destroy

2017-04-19 Thread Juergen Gross
On 19/04/17 09:16, Roger Pau Monné wrote: > On Wed, Apr 19, 2017 at 06:39:41AM +0200, Juergen Gross wrote: >> On 19/04/17 03:02, Glenn Enright wrote: >>> Thanks Juergen. I applied that, to our 4.9.23 dom0 kernel, which still >>> shows the issue. When replicating the leak I now see this trace (via >

Re: [Xen-devel] null domains after xl destroy

2017-04-19 Thread Juergen Gross
On 19/04/17 09:16, Roger Pau Monné wrote: > On Wed, Apr 19, 2017 at 06:39:41AM +0200, Juergen Gross wrote: >> On 19/04/17 03:02, Glenn Enright wrote: >>> On 18/04/17 20:36, Juergen Gross wrote: On 12/04/17 00:45, Glenn Enright wrote: > On 12/04/17 10:23, Andrew Cooper wrote: >> On 11/0

Re: [Xen-devel] null domains after xl destroy

2017-04-19 Thread Roger Pau Monné
On Wed, Apr 19, 2017 at 06:39:41AM +0200, Juergen Gross wrote: > On 19/04/17 03:02, Glenn Enright wrote: > > On 18/04/17 20:36, Juergen Gross wrote: > >> On 12/04/17 00:45, Glenn Enright wrote: > >>> On 12/04/17 10:23, Andrew Cooper wrote: > On 11/04/2017 23:13, Glenn Enright wrote: > > On

Re: [Xen-devel] null domains after xl destroy

2017-04-18 Thread Juergen Gross
On 19/04/17 03:02, Glenn Enright wrote: > On 18/04/17 20:36, Juergen Gross wrote: >> On 12/04/17 00:45, Glenn Enright wrote: >>> On 12/04/17 10:23, Andrew Cooper wrote: On 11/04/2017 23:13, Glenn Enright wrote: > On 11/04/17 21:49, Dietmar Hahn wrote: >> Am Dienstag, 11. April 2017, 20

Re: [Xen-devel] null domains after xl destroy

2017-04-18 Thread Glenn Enright
On 18/04/17 20:36, Juergen Gross wrote: On 12/04/17 00:45, Glenn Enright wrote: On 12/04/17 10:23, Andrew Cooper wrote: On 11/04/2017 23:13, Glenn Enright wrote: On 11/04/17 21:49, Dietmar Hahn wrote: Am Dienstag, 11. April 2017, 20:03:14 schrieb Glenn Enright: On 11/04/17 17:59, Juergen Gro

Re: [Xen-devel] null domains after xl destroy

2017-04-18 Thread Juergen Gross
On 12/04/17 00:45, Glenn Enright wrote: > On 12/04/17 10:23, Andrew Cooper wrote: >> On 11/04/2017 23:13, Glenn Enright wrote: >>> On 11/04/17 21:49, Dietmar Hahn wrote: Am Dienstag, 11. April 2017, 20:03:14 schrieb Glenn Enright: > On 11/04/17 17:59, Juergen Gross wrote: >> On 11/04/1

Re: [Xen-devel] null domains after xl destroy

2017-04-11 Thread Glenn Enright
On 12/04/17 10:23, Andrew Cooper wrote: On 11/04/2017 23:13, Glenn Enright wrote: On 11/04/17 21:49, Dietmar Hahn wrote: Am Dienstag, 11. April 2017, 20:03:14 schrieb Glenn Enright: On 11/04/17 17:59, Juergen Gross wrote: On 11/04/17 07:25, Glenn Enright wrote: Hi all We are seeing an odd i

Re: [Xen-devel] null domains after xl destroy

2017-04-11 Thread Andrew Cooper
On 11/04/2017 23:13, Glenn Enright wrote: > On 11/04/17 21:49, Dietmar Hahn wrote: >> Am Dienstag, 11. April 2017, 20:03:14 schrieb Glenn Enright: >>> On 11/04/17 17:59, Juergen Gross wrote: On 11/04/17 07:25, Glenn Enright wrote: > Hi all > > We are seeing an odd issue with domu d

Re: [Xen-devel] null domains after xl destroy

2017-04-11 Thread Glenn Enright
On 11/04/17 21:49, Dietmar Hahn wrote: Am Dienstag, 11. April 2017, 20:03:14 schrieb Glenn Enright: On 11/04/17 17:59, Juergen Gross wrote: On 11/04/17 07:25, Glenn Enright wrote: Hi all We are seeing an odd issue with domu domains from xl destroy, under recent 4.9 kernels a (null) domain is

Re: [Xen-devel] null domains after xl destroy

2017-04-11 Thread Dietmar Hahn
Am Dienstag, 11. April 2017, 20:03:14 schrieb Glenn Enright: > On 11/04/17 17:59, Juergen Gross wrote: > > On 11/04/17 07:25, Glenn Enright wrote: > >> Hi all > >> > >> We are seeing an odd issue with domu domains from xl destroy, under > >> recent 4.9 kernels a (null) domain is left behind. > > >

Re: [Xen-devel] null domains after xl destroy

2017-04-11 Thread Glenn Enright
On 11/04/17 17:59, Juergen Gross wrote: On 11/04/17 07:25, Glenn Enright wrote: Hi all We are seeing an odd issue with domu domains from xl destroy, under recent 4.9 kernels a (null) domain is left behind. I guess this is the dom0 kernel version? This has occurred on a variety of hardware,

Re: [Xen-devel] null domains after xl destroy

2017-04-10 Thread Juergen Gross
On 11/04/17 07:25, Glenn Enright wrote: > Hi all > > We are seeing an odd issue with domu domains from xl destroy, under > recent 4.9 kernels a (null) domain is left behind. I guess this is the dom0 kernel version? > This has occurred on a variety of hardware, with no obvious commonality. > > 4

[Xen-devel] null domains after xl destroy

2017-04-10 Thread Glenn Enright
Hi all We are seeing an odd issue with domu domains from xl destroy, under recent 4.9 kernels a (null) domain is left behind. This has occurred on a variety of hardware, with no obvious commonality. 4.4.55 does not show this behavior. On my test machine I have the following packages installe