[Qemu-devel] -snapshot problem

[IdaRub]

So I'm very unfamiliar with the QEMU codebase, but it seems like there
was a bug introduced recently that causes -snapshot to no longer work.
Maybe I'm missing something, and the semantics have just changed
since multiple snapshot support?

Anyway, rev 1.29 to block.c
(http://cvs.savannah.gnu.org/viewcvs/qemu/block.c?r1=1.28&r2=1.29&root=qemu)
switched to a path_combine and bdrv_open for backing_filename.  This
seems to currently lead to the behavior of:

$ qemu -snapshot xpsp1.qcow2
qemu: could not open hard disk image 'xpsp1.qcow2'

An strace shows:

open("/tmp/xpsp1.qcow2", O_RDONLY|O_LARGEFILE) = -1 ENOENT (No such
file or directory)

Unfortunately I'm not comfortable enough to try to propose a fix...

Thanks