Re: [libvirt] [PATCH] qemu: Fix shutdown regression
On Tue, Sep 20, 2011 at 19:39:15 +0200, Jiri Denemark wrote:
The commit that prevents disk corruption on domain shutdown
(96fc4784177ecb70357518fa863442455e45ad0e) causes regression with QEMU
0.14.* and 0.15.* because of a regression bug in QEMU that was fixed
only recently in QEMU git. With affected QEMU binaries, domains cannot
be shutdown properly and stay in a paused state. This patch tries to
avoid this by sending SIGKILL to 0.1[45].* QEMU processes. Though we
wait a bit more between sending SIGTERM and SIGKILL to reduce the
possibility of virtual disk corruption.
An alternative solution would be to break reboot on affected QEMUs instead of
trying to live with possible data corruption as if libvirt 0.9.[34] is used.
That is, virDomainReboot would report unsupported operation because current
emulator binary is not able to support it without causing possible data
corruption during shutdown.
Jirka