Messages in this thread | | | Date | Wed, 4 Mar 2009 11:16:41 +0100 | From | Jens Axboe <> | Subject | Re: [PATCH] Fix kernel NULL pointer dereference in xen-blkfront |
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On Tue, Mar 03 2009, Jeremy Fitzhardinge wrote: > Kris Shannon wrote: >> When booting Xen Dom0 on a pre-release 3.2.1 hypervisor the system Oopses on a >> "Unable to handle kernel NULL pointer dereference" in xenwatch. >> >> From the backtrace it looks like backend_changed is calling bdget_disk >> with a NULL pointer. Checking for NULL and returning ENODEV instead >> allows the kernel to boot. >> > > Thanks, applied. (BTW, please cc: me and xen-devel for Xen-related > reports.) > > Jens: could you pull this; I think this is probably -rc material. This > crash just started happening, so I guess its a side-effect of some core > kernel change. > > The following changes since commit c7241227f61ca6606a7fa3555391360d92bd8d9b: > Jens Axboe (1): > xen/blkfront: use blk_rq_map_sg to generate ring entries > > are available in the git repository at: > > git://git.kernel.org/pub/scm/linux/kernel/git/jeremy/xen.git xen/frontend/blkfront > > Kris Shannon (1): > Fix kernel NULL pointer dereference in xen-blkfront > > drivers/block/xen-blkfront.c | 2 ++ > 1 files changed, 2 insertions(+), 0 deletions(-)
Sure, pulled.
-- Jens Axboe
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