Re: [Qemu-devel] [PATCH] migration: avoid divide by zero in xbzrle cache miss rate

[Amit Shah]

On (Wed) 15 Apr 2015 [13:59:14], Michael Chapman wrote:
> This bug manifested itself as a VM that could not be resumed by libvirt
> following a migration:
> 
>   # virsh resume example
>   error: Failed to resume domain example
>   error: internal error: cannot parse json {"return":
>     {"xbzrle-cache":
>       {..., "cache-miss-rate": -nan, ...},
>       ...
>     }
>   }: lexical error: malformed number, a digit is required after the minus 
> sign.
> 
> This patch also ensures xbzrle_cache_miss_prev and iterations_prev are
> cleared at the start of the migration.
> 
> Signed-off-by: Michael Chapman <address@hidden>

Reviewed-by: Amit Shah <address@hidden>

                Amit