Re: [Xen-devel] [xen-unstable test] 125652: regressions - FAIL

[Roger Pau Monné <roger.pau@xxxxxxxxxx>]

On Mon, Jul 30, 2018 at 02:53:31AM +0000, osstest service owner wrote:
> flight 125652 xen-unstable real [real]
> http://logs.test-lab.xenproject.org/osstest/logs/125652/
> 
> Regressions :-(
> 
> Tests which did not succeed and are blocking,
> including tests which could not be run:
>  test-amd64-amd64-xl-qemut-stubdom-debianhvm-amd64-xsm 16 
> guest-localmigrate/x10 fail REGR. vs. 125178

This seems to have failed due to the kernel failing to suspend:

[  336.580230] Freezing remaining freezable tasks ... 

[  356.590051] Freezing of tasks failed after 20.005 seconds (1 tasks refusing 
to freeze, wq_busy=0):

[  356.597842] jbd2/xvda5-8    D ffffffff8109e380     0   113      2 0x00000000

[  356.604353]  ffff88002e967510 0000000000000046 0000000000013200 
ffff88002ea0bfd8

[  356.611377]  0000000000013200 ffff88002e967510 ffff88002f813ab0 
ffff88002fbce0f8

[  356.618587]  0000000000000002 ffffffff811df230 ffff88002ea0bc80 
ffff88002ea9bb98

[  356.625475] Call Trace:

[  356.627738]  [<ffffffff811df230>] ? generic_block_bmap+0x50/0x50

[  356.633125]  [<ffffffff815217e9>] ? io_schedule+0x99/0x120

[  356.637981]  [<ffffffff811df23a>] ? sleep_on_buffer+0xa/0x10

[  356.643019]  [<ffffffff81521b6c>] ? __wait_on_bit+0x5c/0x90

[  356.647979]  [<ffffffff811df230>] ? generic_block_bmap+0x50/0x50

[  356.653302]  [<ffffffff81521c17>] ? out_of_line_wait_on_bit+0x77/0x90

[  356.658992]  [<ffffffff810abc90>] ? autoremove_wake_function+0x30/0x30

[  356.664861]  [<ffffffffa01635aa>] ? 
jbd2_journal_commit_transaction+0x182a/0x1a30 [jbd2]

[  356.672028]  [<ffffffffa0166e42>] ? kjournald2+0xb2/0x240 [jbd2]

[  356.677445]  [<ffffffff810abc60>] ? prepare_to_wait_event+0xf0/0xf0

[  356.683095]  [<ffffffffa0166d90>] ? commit_timeout+0x10/0x10 [jbd2]

[  356.688701]  [<ffffffff8108b13d>] ? kthread+0xbd/0xe0

[  356.693194]  [<ffffffff8108b080>] ? kthread_create_on_node+0x180/0x180

[  356.698980]  [<ffffffff81524c58>] ? ret_from_fork+0x58/0x90

[  356.704043]  [<ffffffff8108b080>] ? kthread_create_on_node+0x180/0x180

[  356.709949] 

[  356.711357] Restarting kernel threads ... done.

[  356.718027] xen:manage: do_suspend: freeze kernel threads failed -16

[  356.723898] Restarting tasks ... done.

I cannot figure out which task caused this however.

Roger.

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