Re: [Qemu-devel] [PATCH 0/5] ahci: enable migration

[Paolo Bonzini]

On 24/02/2015 18:38, John Snow wrote:
> The day we all feared is here, and I am proposing we allow the
> migration of the AHCI device. The series that precedes this
> which fixes AHCI migration has improved the stability of the
> device and as this test series proves, is stable.
> 
> I am justifying this checkin based on a series of ping-pong
> migration tests I ran under heavy load (using google's stressapptest)
> and saw over 300 successful migrations without a single failure.
> 
> This series does a few things:
> (1) Add migration facilities to libqos
> (2) Enable AHCI and ICH9 migration
> (3) Add a series of migration tests to ahci-test
> 
> This patch has several dependencies:
> 
> (1) stefanha/block
> (2) [PATCH v4 00/17] ide: rerror/werror migration fixes for IDE/ISA and AHCI
> (3) [PATCH 0/8] ahci: add more IO tests
> (4) [PATCH 0/6] ahci: rerror/werror=stop resume tests
> 
> 1, 3 and 4 are ahci-test framework dependencies, but 2 actually allows the
> AHCI migration to become stable.

Does rerror/werror=stop work even for queued DMA reads/writes (I didn't
try doing that, but I never even checked whether it just worked)?

Paolo