Re: [Xen-devel] Xen blktap driver for Ceph RBD : Anybody wants to test ? :p

[James Harper <james.harper@xxxxxxxxxxxxxxxx>]

> 
> Yes the procedure didn't change.
> 
> If you're on debian I could also sent your prebuilt .deb for blktap
> and for a patched xen version that includes userspace RBD support.
> 
> If you have any issue, I can be found on ceph's IRC under 'tnt' nick.
> 

I've had a few occasions where tapdisk has segfaulted:

tapdisk[9180]: segfault at 7f7e3a5c8c10 ip 00007f7e387532d4 sp 00007f7e3a5c8c10 
error 4 in libpthread-2.13.so[7f7e38748000+17000]
tapdisk:9180 blocked for more than 120 seconds.
tapdisk         D ffff88043fc13540     0  9180      1 0x00000000

and then like:

end_request: I/O error, dev tdc, sector 472008

I can't be sure but I suspect that when this happened either one OSD was 
offline, or the cluster lost quorum briefly.

James



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