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Re: [Xen-devel] stubdom migration failure on merlot* XSM related (Was: [adhoc test] 65682: tolerable FAIL])



On Fri, 2015-12-11 at 12:12 +0000, Ian Campbell wrote:
> I think 10 repetitions indicates it probably wasn't a fluke, however I've
> kicked off a repeat (flight 65738) of the test to increase confidence.
> 
> In the test-amd64-amd64-xl-qemut-stubdom-debianhvm-amd64-xsm case I've set
> debianhvm_general_timeoutfactor to 2, which should allow the ssh to
> complete inside the now 20s timeout, which will then run the 10x case so we
> can see how repeated migrations occur. This is not a fix, just a
> workaround/diagnostic aid.
> 
> I've left test-amd64-amd64-xl-qemut-stubdom-debianhvm-amd64 alone in the
> repeat since I want to check the pass wasn't a fluke.

That repeat has completed, results are at
http://logs.test-lab.xenproject.org/osstest/logs/65738/
(build was reused from the previous adhoc flight 65682)

Both test cases passed, remember that the -xsm one had a doubled time out.

http://logs.test-lab.xenproject.org/osstest/logs/65738/test-amd64-amd64-xl-qemut-stubdom-debianhvm-amd64-xsm/13.ts-guest-localmigrate.log

has (ssh debug* elided):

015-12-11 10:58:49 Z executing ssh ... -v root@xxxxxxxxxxxxxx date 
OpenSSH_6.0p1 Debian-4+deb7u2, OpenSSL 1.0.1e 11 Feb 2013
[...]
Authenticated to 172.16.145.159 ([172.16.145.159]:22).
[...]
Fri Dec 11 10:59:04 UTC 2015
[...]
Transferred: sent 3064, received 2032 bytes, in 0.0 seconds
Bytes per second: sent 301038.8, received 199644.5
[...]
2015-12-11 10:59:05 Z execution took 15 seconds [**>20/2**]: timeout 50 ssh 
-[...] root@xxxxxxxxxxxxxx date 

In the repeated case 
http://logs.test-lab.xenproject.org/osstest/logs/65738/test-amd64-amd64-xl-qemut-stubdom-debianhvm-amd64-xsm/15.ts-guest-localmigrate.log
it looks like 4 out of the 10 reps took 15-16s, the rest were below the 
theshold for logging.

The non-XSM case passes completely again.

Ian.

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