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

From	Boris Ostrovsky <boris.ostrovsky@oracle.com>
Newsgroups	linux.kernel
Subject	Re: [PATCH v3 3/3] xen: optimize xenbus driver for multiple concurrent xenstore accesses
Date	2017-02-07 19:00 +0100
Message-ID	<t8idA-5XI-29@gated-at.bofh.it> (permalink)
References	<t2JJw-56E-25@gated-at.bofh.it> <t2JTb-59S-5@gated-at.bofh.it> <t2S0q-1AD-15@gated-at.bofh.it> <t39DY-4W7-29@gated-at.bofh.it> <t3c8O-6zx-11@gated-at.bofh.it>
Organization	linux.* mail to news gateway

Show all headers | View raw

On 01/24/2017 11:23 AM, Juergen Gross wrote:
> 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?

Any luck reproducing this? I am still failing the test on dumpdata but I
couldn't reproduce it on another system.

-boris

Back to linux.kernel | Previous | Next — Next in thread | Find similar | Unroll thread

Thread

Re: [PATCH v3 3/3] xen: optimize xenbus driver for multiple  concurrent xenstore accesses Boris Ostrovsky <boris.ostrovsky@oracle.com> - 2017-02-07 19:00 +0100
  Re: [PATCH v3 3/3] xen: optimize xenbus driver for multiple  concurrent xenstore accesses Boris Ostrovsky <boris.ostrovsky@oracle.com> - 2017-02-07 23:40 +0100
    Re: [PATCH v3 3/3] xen: optimize xenbus driver for multiple  concurrent xenstore accesses Juergen Gross <jgross@suse.com> - 2017-02-08 07:30 +0100

csiph-web