Re: btrfs: hang on boot due to tests

[Sasha Levin <sasha.levin@oracle.com>]

On 06/09/2014 11:59 AM, Chris Mason wrote:
> On 06/09/2014 11:16 AM, Sasha Levin wrote:
>> > Hi all,
>> > 
>> > It seems that some recent changes to btrfs tests make it hang during boot:
>> > 
>> > [   49.730033] NMI watchdog: BUG: soft lockup - CPU#34 stuck for 23s! [swapper/0:1]
>> > [   49.730033] Modules linked in:
>> > [   49.730033] hardirqs last enabled at (6389143): restore_args (arch/x86/kernel/entry_64.S:829)
>> > [   49.730033] hardirqs last disabled at (6389144): apic_timer_interrupt (arch/x86/kernel/entry_64.S:1021)
>> > [   49.730033] softirqs last enabled at (6389142): __do_softirq (./arch/x86/include/asm/preempt.h:22 kernel/softirq.c:296)
>> > [   49.730033] softirqs last disabled at (6389139): irq_exit (kernel/softirq.c:346 kernel/softirq.c:387)
>> > [   49.730033] CPU: 34 PID: 1 Comm: swapper/0 Not tainted 3.15.0-rc8-next-20140606-sasha-00021-ga9d3a0b-dirty #597
> 
> This is 3.15-rc8 + linux-next?  I'll try to reproduce here, but the
> tests were working for me.

Yes, it's the latest -next tree available.

Also note that it doesn't happen every time, so might be some sort of a race?


Thanks,
Sasha