Re: [PATCH v3 3/3] xen: optimize xenbus driver for multiple concurrent xenstore accesses

From: Juergen Gross
Date: Tue Jan 24 2017 - 11:23:24 EST

On 24/01/17 14:47, Boris Ostrovsky wrote:
> On 01/23/2017 01:59 PM, Boris Ostrovsky wrote:
>> On 01/23/2017 05:09 AM, Juergen Gross wrote:
>>> Handling of multiple concurrent Xenstore accesses through xenbus driver
>>> either from the kernel or user land is rather lame today: xenbus is
>>> capable to have one access active only at one point of time.
> This patch appears to break save/restore:

Hmm, tried multiple times, but I can't reproduce this issue.

Anything special in the setup? I tried a 64 bit pv guest and did
"xl save".

Do I have to run some load in parallel?