From: Sylvain Munaut <s.munaut@whatever-company.com>
To: Frederik Thuysbaert <frederik.thuysbaert@gmail.com>
Cc: "ceph-devel@vger.kernel.org" <ceph-devel@vger.kernel.org>,
James Harper <james.harper@bendigoit.com.au>,
"xen-devel@lists.xen.org" <xen-devel@lists.xen.org>
Subject: Re: Xen blktap driver for Ceph RBD : Anybody wants to test ? :p
Date: Tue, 13 Aug 2013 17:39:52 +0200 [thread overview]
Message-ID: <CAF6-1L5mcB=Qs3=XpmFC_S2cPWHFaKChYP77ZhLh0+uvWhR3eQ__37886.6786988967$1376408509$gmane$org@mail.gmail.com> (raw)
In-Reply-To: <520A4945.1030907@gmail.com>
Hi,
> I have been testing this a while now, and just finished testing your
> untested patch. The rbd caching problem still persists.
Yes, I wouldn't expect to change anything for caching. But I still
don't understand why caching would change anything at all ... all of
it should be handled within the librbd lib.
Note that I would recommend against caching anyway. The blktap layer
doesn't pass through the FLUSH commands and so this make it completely
unsafe because the VM will think things are commited to disk durably
even though they are not ...
> I will give the error messages of both dom0 and domU before and after I
> applied the patch.
It's actually strange that it changes anything at all.
Can you try adding a ERROR("HERE\n"); in that error path processing
and check syslog to see if it's triggered at all ?
A traceback would be great if you can get a core file. And possibly
compile tapdisk with debug symbols.
Cheers,
Sylvain
next prev parent reply other threads:[~2013-08-13 15:39 UTC|newest]
Thread overview: 96+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-04-18 15:05 Xen blktap driver for Ceph RBD : Anybody wants to test ? :p Sylvain Munaut
2013-04-18 19:35 ` Wido den Hollander
2013-04-19 14:37 ` Sylvain Munaut
2013-04-19 14:40 ` Bernard Grymonpon
2013-04-23 10:02 ` Sylvain Munaut
2013-04-23 14:56 ` Bernard Grymonpon
2013-04-23 15:06 ` Sylvain Munaut
2013-04-23 19:13 ` Bernard Grymonpon
2013-04-23 16:38 ` Nick Couchman
2013-04-23 18:51 ` Sylvain Munaut
2013-04-23 20:09 ` Nick Couchman
2013-04-26 13:07 ` Sylvain Munaut
2013-04-26 15:51 ` Sage Weil
2013-04-26 17:10 ` Sylvain Munaut
2013-04-19 6:45 ` Pasi Kärkkäinen
2013-04-19 14:41 ` [Xen-devel] " Sylvain Munaut
2013-11-29 11:05 ` James Harper
2013-11-29 15:11 ` Sylvain Munaut
2013-12-01 4:08 ` James Harper
2013-12-03 15:46 ` Sylvain Munaut
2013-04-19 14:41 ` Sylvain Munaut
2013-08-01 2:12 ` James Harper
2013-08-05 9:41 ` Sylvain Munaut
2013-08-05 9:41 ` [Xen-devel] " Sylvain Munaut
2013-08-05 9:45 ` James Harper
2013-08-05 9:45 ` [Xen-devel] " James Harper
2013-08-05 11:01 ` Sylvain Munaut
2013-08-05 11:01 ` [Xen-devel] " Sylvain Munaut
2013-08-05 11:03 ` James Harper
2013-08-05 11:03 ` James Harper
2013-08-05 11:12 ` Pasi Kärkkäinen
2013-08-05 12:03 ` [Xen-devel] " Sylvain Munaut
2013-08-05 13:35 ` George Dunlap
2013-08-05 13:55 ` Sylvain Munaut
2013-08-05 14:04 ` George Dunlap
2013-08-05 15:18 ` Wei Liu
2013-08-05 15:20 ` George Dunlap
2013-08-05 15:32 ` Wei Liu
2013-08-05 15:32 ` [Xen-devel] " Wei Liu
2013-08-05 15:20 ` George Dunlap
2013-08-05 15:18 ` Wei Liu
2013-08-05 14:04 ` George Dunlap
2013-08-05 13:55 ` Sylvain Munaut
2013-08-05 13:35 ` George Dunlap
2013-08-05 12:03 ` Sylvain Munaut
2013-08-09 0:12 ` [Xen-devel] " James Harper
2013-08-09 9:21 ` Sylvain Munaut
2013-08-09 9:21 ` [Xen-devel] " Sylvain Munaut
2013-08-11 0:51 ` James Harper
2013-08-11 1:02 ` James Harper
2013-08-11 1:02 ` [Xen-devel] " James Harper
2013-08-12 14:13 ` Sylvain Munaut
2013-08-12 23:26 ` James Harper
2013-08-12 23:26 ` [Xen-devel] " James Harper
2013-08-13 0:39 ` James Harper
2013-08-13 8:32 ` Sylvain Munaut
2013-08-13 8:32 ` [Xen-devel] " Sylvain Munaut
2013-08-13 9:12 ` James Harper
2013-08-13 9:20 ` Sylvain Munaut
2013-08-13 14:59 ` Frederik Thuysbaert
2013-08-13 14:59 ` [Xen-devel] " Frederik Thuysbaert
[not found] ` <520A4945.1030907@gmail.com>
2013-08-13 15:39 ` Sylvain Munaut
2013-08-13 23:39 ` James Harper
2013-08-13 23:43 ` Sylvain Munaut
2013-08-13 23:43 ` [Xen-devel] " Sylvain Munaut
2013-08-13 23:51 ` James Harper
2013-08-13 23:59 ` James Harper
2013-08-13 23:59 ` [Xen-devel] " James Harper
2013-08-14 13:13 ` Sylvain Munaut
2013-08-14 13:13 ` [Xen-devel] " Sylvain Munaut
2013-08-14 13:16 ` James Harper
2013-08-14 13:16 ` [Xen-devel] " James Harper
2013-08-15 7:20 ` James Harper
2013-08-15 7:20 ` [Xen-devel] " James Harper
2013-08-16 1:02 ` James Harper
2013-08-16 1:02 ` [Xen-devel] " James Harper
2013-08-13 23:51 ` James Harper
2013-08-13 23:39 ` James Harper
2013-08-14 8:43 ` Frederik Thuysbaert
2013-08-14 8:43 ` [Xen-devel] " Frederik Thuysbaert
2013-08-14 15:03 ` Sylvain Munaut
2013-08-14 15:03 ` [Xen-devel] " Sylvain Munaut
2013-08-16 8:27 ` Frederik Thuysbaert
2013-08-16 8:27 ` Frederik Thuysbaert
2013-08-14 8:47 ` Frederik Thuysbaert
2013-08-14 8:47 ` [Xen-devel] " Frederik Thuysbaert
2013-08-13 15:39 ` Sylvain Munaut [this message]
2013-08-13 21:47 ` James Harper
2013-08-13 21:47 ` [Xen-devel] " James Harper
2013-08-13 9:20 ` Sylvain Munaut
2013-08-13 9:12 ` James Harper
2013-08-13 0:39 ` James Harper
2013-08-12 14:13 ` Sylvain Munaut
2013-08-11 0:51 ` James Harper
2013-08-09 0:12 ` James Harper
-- strict thread matches above, loose matches on Subject: below --
2013-04-18 15:05 Sylvain Munaut
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