From: Kip Macy <kip.macy@gmail.com>
To: Steven Hand <Steven.Hand@cl.cam.ac.uk>
Cc: xen-devel@lists.xensource.com
Subject: Re: Unstableness in grant table block drivers
Date: Wed, 13 Apr 2005 18:53:44 -0700 [thread overview]
Message-ID: <b1fa29170504131853527fc44d@mail.gmail.com> (raw)
In-Reply-To: <E1DLt2A-0002y2-00@mta1.cl.cam.ac.uk>
> Sure, good point (though as mentioned above, we hadn't seen any
> problems ourselves -- we strongly appreciate the community effort
> in helping us ensure new changes work on a broad range of configs
> and usage scenarios).
I think it is safe to say that the blkback/blkfront still have some
serious bugs to be fixed even in the absences of grant tables.
Exporting more than a couple of block devices to VMs will eventually
cause domUs to stop receiving block I/O. I hope to have time to create
a scenario that works quicktly and with a sufficiently small
configuration that you'll be able to reproduce it there. To date I've
only tried it with a fairly large number of LUNs.
Developers using xen here periodically have to re-boot their machines
as a result. They can't reproduce it consistently (thankfully), but
they're typically only using 7-10 VBDs.
-Kip
next prev parent reply other threads:[~2005-04-14 1:53 UTC|newest]
Thread overview: 40+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <aliguori@us.ibm.com>
2005-04-14 1:18 ` Unstableness in grant table block drivers Anthony Liguori
2005-04-14 1:20 ` Steven Hand
2005-04-14 1:46 ` Anthony Liguori
2005-04-14 1:53 ` Kip Macy [this message]
2005-04-14 2:27 ` Anthony Liguori
2005-04-14 2:55 ` Kip Macy
2005-04-16 1:32 Ian Pratt
2005-04-16 15:39 ` Ryan Harper
2005-04-18 16:38 ` Christopher Clark
2005-04-18 16:45 ` Ryan Harper
2005-04-18 20:51 ` Ryan Harper
2005-04-20 18:52 ` Christopher Clark
2005-04-20 19:37 ` Ryan Harper
2005-04-22 18:57 ` Ryan Harper
2005-04-22 19:06 ` Anthony Liguori
2005-05-12 1:50 ` Xiaofeng Ling
-- strict thread matches above, loose matches on Subject: below --
2005-04-15 22:30 Ian Pratt
2005-04-16 1:18 ` Christopher Clark
2005-04-16 1:32 ` Christopher Clark
2005-04-16 3:03 ` David Hopwood
2005-04-14 10:24 Ian Pratt
2005-04-14 10:34 ` Ge van Geldorp
[not found] <E1DLu58-0005lx-KR@host-192-168-0-1-bcn-london>
2005-04-14 10:17 ` Ge van Geldorp
2005-04-14 1:16 Ian Pratt
2005-04-14 1:43 ` Anthony Liguori
2005-04-14 2:04 ` Christopher Clark
2005-04-14 2:17 ` Kip Macy
2005-04-14 2:25 ` Anthony Liguori
2005-04-14 15:00 ` Ryan Harper
2005-04-14 16:34 ` Christopher Clark
2005-04-14 17:28 ` Ryan Harper
2005-04-15 18:45 ` Christopher Clark
2005-04-15 21:14 ` Ryan Harper
2005-04-15 21:32 ` Kip Macy
2005-04-15 21:41 ` Ryan Harper
2005-04-15 21:46 ` Kip Macy
2005-04-15 21:50 ` Ryan Harper
2005-04-15 21:52 ` Ryan Harper
2005-04-15 22:07 ` Christopher Clark
2005-04-15 22:08 ` Ryan Harper
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