Re: lockups shortly after booting in current git.

[Dave Jones]

On Thu, Mar 29, 2012 at 01:59:33PM -0700, Linus Torvalds wrote:
 > On Thu, Mar 29, 2012 at 1:39 PM, Ted Ts'o <tytso@xxxxxxx> wrote:
 > >
 > > I'd suggest restricting the bisect to fs/ first, and if that comes up
 > > with something non-sensical, you can always use the good/bad data
 > > points for a whole tree bisect.
 > >
 > > One commit that you might want to try testing is b43d17f31^, and see
 > > whether that works.  One potential commit that might be suspicious is
 > > b43d17f31 given the stack trace shows one process apparently waiting
 > > on PageWriteback.
 > 
 > Ahh, that does sound interesting and relevant.
 > 
 > Yeah, maybe the directed approach is worth it. In fact, considering
 > the above commie, maybe it might be worth it to be *very* directed,
 > and just test that one thing first, and maybe even skip the bisection
 > entirely and just test a revert if it looks promising.

I'll try a build with just that reverted, given the bisect build is taking a while.

Any thoughts on any printk's I could add to verify a situation occurred or not ?
The problem with bisecting a bug like this is that it's hard to tell if
the bug has been fixed, or if I've just not hit it yet.

	Dave

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