Re: frequent lockups in 3.18rc4

From: DÃniel Fraga
Date: Tue Dec 02 2014 - 23:51:52 EST


On Tue, 2 Dec 2014 20:14:52 -0800
Linus Torvalds <torvalds@xxxxxxxxxxxxxxxxxxxx> wrote:

> What is *really* suspicious is a series of "git bisect good" with no
> "bad"s anywhere. Which is exactly what we see at the end of the
> bisect.
>
> So might I ask you to try starting from this point again (this is why
> the bisect log is so useful - no need to retest the above part, you
> can just mindlessly do that sequence by hand without testing), and
> starting with this commit:
>
> > # good: [47dfe4037e37b2843055ea3feccf1c335ea23a9c] Merge branch
> > 'for-3.17' of
> > git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup git bisect
> > good 47dfe4037e37b2843055ea3feccf1c335ea23a9c

> Of course, bugs can come in from anywhere, so it *could* be the
> tracing one, and it *could* be the merge commit, but my gut just
> screams that you probably missed one bad kernel, and marked it good.
> And it's really that very first one (ie commit
> 47dfe4037e37b2843055ea3feccf1c335ea23a9c) that contains most of the
> actually suspect code, so I'd really like you to re-test that one a
> lot before you call it "good" again.
>
> Humor me.
>
> I added Tejun to the Cc, just because I wanted to give him a heads-up
> that I am tentatively starting to blame him in my dark little mind..

:)

I understand Linus. I'll try the 47dfe4037 commit you
suggested harder and I'll return tomorrow.

--
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