Re: [Qemu-devel] [PATCH v2 0/2] move qcow2_invalidate_cache() out of coroutine context

[Amit Shah]

Can someone from the block team please give this a review?

Thanks,

On (Fri) 12 Feb 2016 [09:39:32], Denis V. Lunev wrote:
> There is a possibility to hit an assert in qcow2_get_specific_info that
> s->qcow_version is undefined. This happens when VM in starting from
> suspended state, i.e. it processes incoming migration, and in the same
> time 'info block' is called.
> 
> The problem is that qcow2_invalidate_cache() closes the image and
> memset()s BDRVQcowState in the middle.
> 
> This operation should not be performed in coroutine context.
> 
> Changes from v1:
> - fixed spelling. Eric, thank you for spell checking
> 
> Signed-off-by: Denis V. Lunev <address@hidden>
> CC: Paolo Bonzini <address@hidden>
> CC: Juan Quintela <address@hidden>
> CC: Amit Shah <address@hidden>
> 

                Amit