Re: [uml-devel] Re: Diagnosed and repeatable kernel mode panic in schedule() for 2.6!

[BlaisorBlade <bla...@ya...>]

Alle 10:53, luned=EC 16 febbraio 2004, Ingo Molnar ha scritto:
> * BlaisorBlade <bla...@ya...> wrote:
> > While searching the archives, I noticed that this command:
> >
> > while /bin/true ; do /bin/true ; done
> >
> > Kernel panic: Kernel mode fault at addr 0x1f, ip 0x400d1397
> > Kernel panic: kernel BUG at kernel/exit.c:793!
>
> can you reproduce this crash even if you boot up UML via init=3D/bin/bash?
Yes (test with the same binary):
bash-2.05b# while /bin/true; do /bin/true; done
Kernel panic: Kernel mode fault at addr 0x1f, ip 0x400d1397

However, I discovered that an old 2.6.0 kernel works well. I think that had=
=20
2.6.0-test9 patch; so I think that this is related with the NET: Registered=
=20
=2E.. hang, which was solved with the same patch. That does not happen on=20
different compilation env.s, but I think that is random: a crazy pointer=20
failing in different places.
=2D-=20
Paolo Giarrusso, aka Blaisorblade
Linux registered user n. 292729