complete_and_exit() problem

David Woodhouse dwmw2 at
Tue Sep 4 04:25:09 EDT 2001

jlavi at said:
> The garbage collection thread crashes when I unmount JFFS2. The
> filesystem is empry and I only mount it and then unmount it. I am
> using kernel  2.4.8ac12 with rmk1 patch for ARM cpu.

> I traced the exeution to complete_and_exit(), then to complete(), then 
> to __wake_up_common(). In __wake_up_common() there is a loop

 <deletia - >

> I tried replacing 
> -       if (comp) 
> +	if (comp && comp->
> in complete_and_exit(). I don't know if it is the right way to do it,
> but at least the garbage gollection thread stopped crashing.

Looks like the list_head is uninitialised - we're in complete()
before anything's ever called init_completion().

ISTR this was the reason I bailed out on doing a quick fix for -ac before
disappearing to OLS.


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