Re: (reiserfs hang at boot) where is the kernel debugger?

From: David Ford (david@kalifornia.com)
Date: Sun Oct 01 2000 - 22:44:39 EST


Rik van Riel wrote:

> Schedule() is the last function in the kernel they
> went into before they got scheduled away ;)
>
> The second last function is the one you're interested
> in ...

Hmm, 'k.

> > PC: schedule()
> > -1: down()
> > -2: down_fail()
> Then I guess something was trying to take the same
> semaphore twice and deadlocked, taking the rest of
> the system with it...

That sounds 'bout right. Every new process gets stuck at the same
location too. (reiserfs list) Do you have a comment?

> > sshd S 7FFFFFFF 0 247 88 248 (NOTLB)
> > 121
> > sig: 0 0000000000000000 0000000000000000 : X
> > bash S 00000000 0 248 247 263 (NOTLB)
> > sig: 0 0000000000000000 0000000000010000 : X
>
> Sysrq-T is broken on x86 ;((((((((
>
> (very much to my dismay ... this is one of the best
> debugging helps we have^Whad and I could have used
> it quite well)

Oh that doesn't make me happy. What's necessary to fix it to get useful
information?

-d

--
      "There is a natural aristocracy among men. The grounds of this are
      virtue and talents", Thomas Jefferson [1742-1826], 3rd US President


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