Re: [BUG stable, 2.6.32.27] sched: delayed cleanup of user_struct

Stefan Priebe - Profihost AG
2011-01-10T14:01:31Z

>> is it a workaround to disable CONFIG_GROUP_SCHED?
> ^^^^^^^^^^^^^^^^^^
> CONFIG_USER_SCHED, not CONFIG_GROUP_SCHED.
correct but CONFIG_USER_SCHED depends on CONFIG_GROUP_SCHED and as we
don't use CONFIG_GROUP_SCHED at all my idea was to completely remove
this feature.

> I think that disabling it should obviously help. But it is
> possible that there is something else. Given that you can
> reproduce the crash, it would be nice if you can test this
> and report ;)
Main problem - right i can't reproduce it. But the system was crashing
two times more in the past.

You can find the logs here:
http://pastebin.com/hNd15E8K

> Or. You can revert
> b00bc0b237055b4c45816325ee14f0bd83e6f590
> uids: Prevent tear down race
>
> 3959214f971417f4162926ac52ad4cd042958caa
> sched: delayed cleanup of user_struct
Not sure if it is a good idea to introduce another race again.

Stefan