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SubjectRe: lockups shortly after booting in current git.
On Thu, Mar 29, 2012 at 11:36:49AM -0700, Linus Torvalds wrote:
> On Thu, Mar 29, 2012 at 11:26 AM, Dave Jones <> wrote:
> > On Thu, Mar 29, 2012 at 09:03:31AM -0700, Linus Torvalds wrote:
> >  > Can you do sysrq-w (or whatever it is that does only the D-state
> >  > processes)? That might give the more relevant process information without
> >  > everything else making it unreadable...
> >
> >
> Ok, this doesn't look all that different, but now it's not truncated
> any more because the random "waits for children or poll" cases are
> gone.
> It's still basically all blocked on the ext4 journal. All writes as
> far as I can see.
> That said, there's that odd kworker/1:2 there that seems to be
> constantly running. Can you get the EIP for that one (several times)
> by doing sysrq-p (or maybe sysrq-l is better - that should give the
> stack trace too).

Took a while to reproduce that time (but now I have a theory, going
to try and reproduce that after sending this mail).

sysrq-p looks kinda boring. I couldn't get sysrq-l to coincide
with kworker running.


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