On Sat, 08 May 2021 08:11:52 +0100, Zhu Lingshan <lingshan.zhu@xxxxxxxxx> wrote: > > This reverts commit a979a6aa009f3c99689432e0cdb5402a4463fb88. > > The reverted commit may cause VM freeze on arm64 platform. > Because on arm64 platform, stop a consumer will suspend the VM, > the VM will freeze without a start consumer It also unconditionally calls del_consumer on the producer, which isn't exactly expected. > > Signed-off-by: Zhu Lingshan <lingshan.zhu@xxxxxxxxx> Reported-by: Shaokun Zhang <zhangshaokun@xxxxxxxxxxxxx> Suggested-by: Marc Zyngier <maz@xxxxxxxxxx> Acked-by: Marc Zyngier <maz@xxxxxxxxxx> Fixes: a979a6aa009f ("irqbypass: do not start cons/prod when failed connect") Link: https://lore.kernel.org/r/3a2c66d6-6ca0-8478-d24b-61e8e3241b20@xxxxxxxxxxxxx Cc: stable@xxxxxxxxxxxxxxx Thanks, M. -- Without deviation from the norm, progress is not possible.