Here's a vmcore, along with log files from Xen's crash dump utility.
https://drive.google.com/file/d/0Bz8b7ZiWX00AeHRhMjNvdVNLdDQ/view?usp=sharing
https://drive.google.com/file/d/0Bz8b7ZiWX00AeHRhMjNvdVNLdDQ/view?usp=sharing
Let me know if we can help more.
On Fri, Apr 10, 2015 at 1:04 PM Ilya Dryomov <idryomov@xxxxxxxxx> wrote:
On Fri, Apr 10, 2015 at 8:03 PM, Shawn Edwards <lesser.evil@xxxxxxxxx> wrote:
> I took the rbd and ceph drivers out of the patched kernel above and merged
> them into Xen's kernel. Works as well as the old one; still crashes. But
> now I get logs. From the Xen logs:
>
> [ 1128.217561] ERR:
> Assertion failure in rbd_img_obj_callback() at line 2363:
>
> rbd_assert(more ^ (which == img_request->obj_request_count));
Ah, that's a long standing bug which we know wasn't properly fixed -
a tight race in rbd completion callback. It looks like it doesn't take
long for you to reproduce it. Can you try grabbing a vmcore such that
it can be inspected with crash utility?
Thanks,
Ilya
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