[Xen-devel] Want to update osstest to use Linux 4.1 but it does not work :-/

[Ian Jackson <ijackson@xxxxxxxxxxxxxxxxxxxxxx>]

The main Xen Project osstest instance is still using Linux 3.14 which
is ancient.  It would be nice to update to something newer.  4.1 was
suggested.

However, I went to look at the most recent test results for the Linux
4.1 branch.  It can't start guests reliably:

osstest service owner writes ("[linux-4.1 test] 101004: tolerable FAIL - 
PUSHED"):
> flight 101004 linux-4.1 real [real]
> http://logs.test-lab.xenproject.org/osstest/logs/101004/
> 
> Failures :-/ but no regressions.
> 
> Tests which are failing intermittently (not blocking):
>  test-armhf-armhf-xl-credit2  11 guest-start   fail in 101001 pass in 101004
>  test-armhf-armhf-libvirt-qcow2  6 xen-boot             fail pass in 101001
>  test-amd64-amd64-xl      19 guest-start/debian.repeat  fail pass in 101001
>  test-amd64-amd64-libvirt-xsm 17 guest-start/debian.repeat fail pass in 101001

The Debian guest (jessie, seems to be running systemd) prints:

[0m] A start job is running for dev-xvda1.device (1min 29s / 1min 30s)
[0m] Timed out waiting for device dev-xvda1.device.

We also have this:

[ 3.447337] systemd-udevd[952]: segfault at 5644df9ce000 ip
            00007f34a1d99761 sp 00007ffc65870538 error 4 in
            libblkid.so.1.1.0[7f34a1d77000+3b000]

Here are the full logs.

http://logs.test-lab.xenproject.org/osstest/logs/101004/test-amd64-amd64-xl/info.html

Is there a known problem with Linux 4.1 as a PV disk backend ?

Ian.

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