Bug#963493: Repeatable hard lockup running strace testsuite on 4.19.98+ onwards

2020-06-26 Thread Sasha Levin
On Fri, Jun 26, 2020 at 08:01:18PM +0100, Steve McIntyre wrote: On Fri, Jun 26, 2020 at 10:29:28AM -0700, John Johansen wrote: On 6/26/20 9:50 AM, Steve McIntyre wrote: OK, will try that second... I have not been able to reproduce but So looking at linux-4.19.y it looks like 1f8266ff5884 a

Bug#963493: Repeatable hard lockup running strace testsuite on 4.19.98+ onwards

2020-06-26 Thread Steve McIntyre
On Fri, Jun 26, 2020 at 10:29:28AM -0700, John Johansen wrote: >On 6/26/20 9:50 AM, Steve McIntyre wrote: >> >> OK, will try that second... >> > >I have not been able to reproduce but > >So looking at linux-4.19.y it looks like >1f8266ff5884 apparmor: don't try to replace stale label in ptrace ac

Bug#963493: Repeatable hard lockup running strace testsuite on 4.19.98+ onwards

2020-06-26 Thread Steve McIntyre
Hi again, On Fri, Jun 26, 2020 at 05:50:00PM +0100, Steve McIntyre wrote: >On Fri, Jun 26, 2020 at 04:25:59PM +0200, Jann Horn wrote: >>On Fri, Jun 26, 2020 at 3:41 PM Greg KH wrote: >>> On Fri, Jun 26, 2020 at 12:35:58PM +0100, Steve McIntyre wrote: > >... > >>> > Considering I'm running strace

Bug#963493: Repeatable hard lockup running strace testsuite on 4.19.98+ onwards

2020-06-26 Thread John Johansen
On 6/26/20 9:50 AM, Steve McIntyre wrote: > Hi Jann, > > On Fri, Jun 26, 2020 at 04:25:59PM +0200, Jann Horn wrote: >> On Fri, Jun 26, 2020 at 3:41 PM Greg KH wrote: >>> On Fri, Jun 26, 2020 at 12:35:58PM +0100, Steve McIntyre wrote: > > ... > Considering I'm running strace build tests to

Bug#963493: Repeatable hard lockup running strace testsuite on 4.19.98+ onwards

2020-06-26 Thread Steve McIntyre
Hi Jann, On Fri, Jun 26, 2020 at 04:25:59PM +0200, Jann Horn wrote: >On Fri, Jun 26, 2020 at 3:41 PM Greg KH wrote: >> On Fri, Jun 26, 2020 at 12:35:58PM +0100, Steve McIntyre wrote: ... >> > Considering I'm running strace build tests to provoke this bug, >> > finding the failure in a commit ta

Bug#963493: Repeatable hard lockup running strace testsuite on 4.19.98+ onwards

2020-06-26 Thread Steve McIntyre
On Fri, Jun 26, 2020 at 02:45:18PM +0100, Steve McIntyre wrote: >Hey Greg, > >On Fri, Jun 26, 2020 at 03:41:32PM +0200, Greg KH wrote: >>On Fri, Jun 26, 2020 at 12:35:58PM +0100, Steve McIntyre wrote: >>> >>> e58f543fc7c0926f31a49619c1a3648e49e8d233 is the first bad commit >>> commit e58f543fc7c09

Bug#963493: Repeatable hard lockup running strace testsuite on 4.19.98+ onwards

2020-06-26 Thread Steve McIntyre
Hey Greg, On Fri, Jun 26, 2020 at 03:41:32PM +0200, Greg KH wrote: >On Fri, Jun 26, 2020 at 12:35:58PM +0100, Steve McIntyre wrote: >> >> e58f543fc7c0926f31a49619c1a3648e49e8d233 is the first bad commit >> commit e58f543fc7c0926f31a49619c1a3648e49e8d233 >> Author: Jann Horn >> Date: Thu Sep 13

Bug#963493: Repeatable hard lockup running strace testsuite on 4.19.98+ onwards

2020-06-26 Thread Greg KH
On Fri, Jun 26, 2020 at 12:35:58PM +0100, Steve McIntyre wrote: > Hi folks, > > I'm the maintainer in Debian for strace. Trying to reproduce > https://bugs.debian.org/963462 on my machine (Thinkpad T470), I've > found a repeatable hard lockup running the strace testsuite. Each time > it seems to h

Bug#963493: Repeatable hard lockup running strace testsuite on 4.19.98+ onwards

2020-06-26 Thread Steve McIntyre
Hi folks, I'm the maintainer in Debian for strace. Trying to reproduce https://bugs.debian.org/963462 on my machine (Thinkpad T470), I've found a repeatable hard lockup running the strace testsuite. Each time it seems to have failed in a slightly different place in the testsuite (suggesting it's n