Re: BUG: scheduling while atomic

[Michael Guntsche]

On Jul 6, 2009, at 10:31, Herbert Xu wrote:

> On Mon, Jul 06, 2009 at 03:43:33PM +0800, Herbert Xu wrote:
> > I think the first backtrace is bogus, this is where the real
> > problem is.  So what see here is that on xmit from the network,
> > PPP will call pty_write from BH context which eventually leads
> > to tty_throttle and the sleep.
>
> Here's the stupidest possible fix for this, changing the mutex
> to a spin lock.  We should also revert the other commit that
> tried to fix this, a6540f731d506d9e82444cf0020e716613d4c46c as
> those unthrottles are really needed
<snip>

Just to confirm.
I reverted the commit and applied the patch on-top of 2.6.31-rc2.
Up to now I was not able to reproduce the crashes I had before on my  
setup here.


Kind regards,
Michael
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