Thread (15 messages) flat view 15 messages, 7 authors, 2021-05-11

Re: [PATCH] Revert "irqbypass: do not start cons/prod when failed connect"

From: Marc Zyngier <maz@kernel.org>
Date: 2021-05-10 07:40:04
Also in: kvm, kvmarm, stable

On Mon, 10 May 2021 02:12:22 +0100,
Shaokun Zhang [off-list ref] wrote:
Hi Marc,

On 2021/5/8 17:29, Marc Zyngier wrote:
quoted
On Sat, 08 May 2021 08:11:52 +0100,
Zhu Lingshan [off-list ref] wrote:
quoted
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.
quoted
Signed-off-by: Zhu Lingshan <redacted>
Reported-by: Shaokun Zhang <redacted>
Thanks for the tag, it works with this patch, So:
Tested-by: Shaokun Zhang <redacted>

I shall invite you to have a drink for the quick debug.
Anyway, thank you again.
No worries, glad we were able to root-cause the problem quickly
enough.

Thanks,

	M.

-- 
Without deviation from the norm, progress is not possible.

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