On 2014-11-10 02:59, Rusty Russell wrote:
Jeff Layton <jlay...@poochiereds.net> writes:

In the latest Fedora rawhide kernel in the repos, I'm seeing the
following oops when mounting xfs. rc2-ish kernels seem to be fine:

[   64.669633] ------------[ cut here ]------------
[   64.670008] kernel BUG at drivers/block/virtio_blk.c:172!

Hmm, that's:

        BUG_ON(req->nr_phys_segments + 2 > vblk->sg_elems);

But during our probe routine we said:

        /* We can handle whatever the host told us to handle. */
        blk_queue_max_segments(q, vblk->sg_elems-2);

Jens?

Known, I'm afraid, Ming is looking into it.

--
Jens Axboe

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