Synchronizing auxiliary mutex data

[Andreas Schwab]

On Jun 27 2017, Andrew Pinski <pinskia@gmail.com> wrote:

> On Mon, Jun 19, 2017 at 1:10 AM, Andreas Schwab <schwab@suse.de> wrote:
>> What is synchronizing the auxiliary data in pthread_mutex_t.__data
>> (__owner and __count) between threads?
>
> I suspect you are running into a problem where you are getting a
> deadlock and/or lock has happened on two different CPUs?

No.  Something is reading stale data.

Andreas.

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Andreas Schwab, SUSE Labs, schwab@suse.de
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