[libvirt] [PATCH 0/2] qemu: Cancel/forbid migration on I/O error

Paolo Bonzini pbonzini at redhat.com
Tue Jun 11 14:55:01 UTC 2013


Il 11/06/2013 05:49, Peter Krempa ha scritto:
> When qemu has paused itself due to a I/O error it's not safe to migrate it
> as it still might contain state in kernel buffers. These patches forbid and
> cancel ongoing migration if a I/O error happens.
> 
> Peter Krempa (2):
>   qemu: Cancel migration if guest encoutners I/O error while migrating
>   qemu: Forbid migration of machines with I/O errors
> 
>  src/qemu/qemu_migration.c | 31 +++++++++++++++++++++++++++++++
>  1 file changed, 31 insertions(+)
> 

This actually should be supported, it certainly is in QEMU.  What kind
of state is in the kernel and what is the BZ for this patch?

When a system call returns, it should be all done.

Paolo




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