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Re: [Xen-devel] [PATCH] ioemu block device extent checks
| To: | Kevin Wolf <kwolf@xxxxxxx>, "Daniel P. Berrange" <berrange@xxxxxxxxxx> |
|---|---|
| Subject: | Re: [Xen-devel] [PATCH] ioemu block device extent checks |
| From: | Keir Fraser <keir.fraser@xxxxxxxxxxxxx> |
| Date: | Tue, 04 Mar 2008 10:08:55 +0000 |
| Cc: | xen-devel@xxxxxxxxxxxxxxxxxxx, Ian Jackson <Ian.Jackson@xxxxxxxxxxxxx> |
| Delivery-date: | Tue, 04 Mar 2008 02:10:22 -0800 |
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| Thread-index: | Ach938EL/1mxjOnSEdyzcwAX8io7RQ== |
| Thread-topic: | [Xen-devel] [PATCH] ioemu block device extent checks |
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On 4/3/08 10:16, "Kevin Wolf" <kwolf@xxxxxxx> wrote: > Daniel P. Berrange schrieb: >> FYI, this patch causes massive unrecoverable data loss / corruption on >> QCow2 files. The checks themselves are OK in terms of the first level >> of bdrv_* calls from the guest. The qcow driver though calls back into >> the raw driver for performing I/O on its underlying file. The qcow >> driver relies on this file being grow-on-demand for purposes of allocating >> new qcow sectors. The safety checks cause this allocation to fail and >> it all goes downhill from there :-( > > I just hit this problem. What's the status? If I understand correctly, > you discussed two different solutions and as a result no fix at all got > committed. Current xen-unstable tip should have it fixed (by a combination of changesets 17133 and 17177). -- Keir _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-devel |
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