[Lguest] rmmod lg causes system to crash

Rusty Russell rusty at rustcorp.com.au
Fri Dec 28 22:22:48 EST 2007


On Friday 28 December 2007 19:39:50 Balaji Rao wrote:
> Hi rusty,
>
> I get an error saying bad pgd 00637027 when i do an rmmod lg and sooner or
> later i get a recursive fault and the system hangs.

Hi Balaji,

    I have reproduced the crash on rmmod.  It's late here, so I don't have any 
more results, but that number indicates that the USER bit is set, which 
shouldn't be set in a pmd or pgd.

> What happens is, when it tries to unmap pmds, the pmd_none_or_clear_bad
> prints out this message.

Wouldn't that print out 'bad pmd' then?

I'll chase this down tomorrow, thanks!
Rusty.



More information about the Lguest mailing list