Hi, On 5/8/21 11:29 AM, Marc Zyngier wrote: > 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> Reviewed-by: Eric Auger <eric.auger@xxxxxxxxxx> Thanks Eric > 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. >