Re: 3.13: BUG: unable to handle kernel paging request at00000000b4343e88

From: Meelis Roos
Date: Fri Jan 24 2014 - 15:54:38 EST


> >> It looks like gcov exploded when running a module's constructors or
> >> init function, but I'm unable to work out which module it was :(
> > [...]
> >
> >> Maybe it's tg3.
> >>
> >> Could you add `ignore_loglevel' to the kernel boot parameters? That
> >> should make all pr_debug()s come out and they include the module's
> >> name.
>
> I'm not sure if this related, but all 3 kernel logs consistently contain
> this error message:
>
> > [ 0.617401] gcov: could not create file
>
> which should only be shown in case of severe out-of-memory situations or
> duplicate object file names.
>
> Could you retry with the following patch applied (2 times if possible)
> and send dmesg output?

This seems to be relevant - now there is a reproducible crash during the
printk. Captured end of the backtrace from HP ILO as image, attached.
This is reproducible.

--
Meelis Roos (mroos@xxxxxxxx)

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