RE: [PATCH 1/1] Drivers: hv: vmbus: Add timeout to vmbus_wait_for_unload
From: Dexuan Cui <decui@microsoft.com>
Date: 2020-09-13 19:56:43
Also in:
lkml
From: Dexuan Cui <decui@microsoft.com>
Date: 2020-09-13 19:56:43
Also in:
lkml
From: linux-hyperv-owner@vger.kernel.org
[off-list ref] On Behalf Of Michael Kelley
Sent: Sunday, September 13, 2020 12:47 PM
vmbus_wait_for_unload() looks for a CHANNELMSG_UNLOAD_RESPONSE
message
coming from Hyper-V. But if the message isn't found for some reason,
the panic path gets hung forever. Add a timeout of 10 seconds to prevent
this.
Fixes: 415719160de3 ("Drivers: hv: vmbus: avoid scheduling in interrupt
context in vmbus_initiate_unload()")
Signed-off-by: Michael Kelley <redacted>Reviewed-by: Dexuan Cui <decui@microsoft.com>