Re: [PATCH 4/4] xen/pcifront: Fix mysterious crashes when NUMA locality information was extracted.

From: Boris Ostrovsky
Date: Sat Feb 13 2016 - 20:23:57 EST


On 02/11/2016 04:10 PM, Konrad Rzeszutek Wilk wrote:

This patch fixes the issue by:
1) Use kzalloc to initialize to a well known state.
2) Put 'struct pci_sysdata' at the start of 'pcifront_sd'. That
way access to the 'node' will access the right offset.

CC: stable@xxxxxxxxxxxxxxx
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@xxxxxxxxxx>

Reviewed-by: Boris Ostrovsky <boris.ostrovsky@xxxxxxxxxx>

(This, btw, is the second time we got bitten by pcifront_sd bit not being pci_sysdata. dc4fdaf0e48 was a workaround for a similar problem and we should have fixed it then).

-boris