Re: 2.5.66 x86_64 oops when swapoff via IA32 emulation

Andi Kleen (ak@suse.de)
Thu, 3 Apr 2003 17:16:43 +0200


On Thu, Apr 03, 2003 at 04:56:31PM +0200, mikpe@csd.uu.se wrote:
> I got this oops from swapoff when shutting down 2.5.66 on
> x86_64 with 32-bit user-space (RH8.0). This was from the first
> run with 2.5.66, I wasn't able to reproduce it in later runs.

Is this on the Simulator or on a real Opteron/Athlon64?

On the real CPU there is a known bug I wasn't able to track down yet -
pci_free_consistent() seems to corrupt memory. When you do a shutdown
this is usually invoked in some driver's cleanup function (e.g. ifconfig
down on a network driver) and causes something later to crash.

-Andi

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