On Thu, May 31, 2018 at 1:43 AM, John Snow <js...@redhat.com> wrote: > Commit d759c951f changed the main thread lock release/reacquisition, > and in so doing apparently jostled loose a race condition in the AHCI > code. > > Patch 2 should be sufficient to fix this, and patches 1 and 3 are just > little trivial fixes. > > This might be sufficient to fix the bug as reported at > https://bugs.launchpad.net/qemu/+bug/1769189 > but the nature of the timing changes make it difficult to confirm, > so I am posting this patchset for the reporters to help test. > > John Snow (3): > ahci: trim signatures on raise/lower > ahci: fix PxCI register race > ahci: don't schedule unnecessary BH > > hw/ide/ahci.c | 24 +++++++++++------------- > 1 file changed, 11 insertions(+), 13 deletions(-)
Nice find! Reviewed-by: Stefan Hajnoczi <stefa...@redhat.com>
