On Sun, 2 Nov 2008, Denys Vlasenko wrote:

quoted

I fully bisected it, and the final "buggy" patch seems to have been 
Denys Vlasenko's patch: cb8f488c33539f096580e202f5438a809195008f (see 
http://github.com/jonsmirl/digispeaker/commit/cb8f488c33539f096580e202f5438a809195008f) 
Denys: Any reason you removed "!prev" in front of "expand_stack"?

Looks like I erroneously thought it can't be NULL,
or that expand_upwards() is ok with getting NULL vma parameter.
I looked again and neither is true.
Sorry, looks like I indeed broke this.

Hmm, so ... ? Seems like this didn't get fixed in Linus' tree yet?

-- 
Jiri Kosina
SUSE Labs