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RE: [PATCH] Improve Xenfilt power and default IRP handling.
- To: Martin Harvey <martin.harvey@xxxxxxxxxx>, "win-pv-devel@xxxxxxxxxxxxxxxxxxxx" <win-pv-devel@xxxxxxxxxxxxxxxxxxxx>
- From: Martin Harvey <martin.harvey@xxxxxxxxxx>
- Date: Tue, 15 Mar 2022 11:18:58 +0000
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- List-id: Developer list for the Windows PV Drivers subproject <win-pv-devel.lists.xenproject.org>
- Thread-index: AQHYN8VWdc48nzMGh0e89v1joYTp56zATSfg
- Thread-topic: [PATCH] Improve Xenfilt power and default IRP handling.
For context, large patch not submitted on a whim, but fixes occasional
instances of:
DRIVER_POWER_STATE_FAILURE (9f)
A driver has failed to complete a power IRP within a specific time.
Arguments:
Arg1: 0000000000000003, A device object has been blocking an Irp for too long a
time
Arg2: ffff818002011360, Physical Device Object of the stack
Arg3: fffff8037f46e850, nt!TRIAGE_9F_POWER on Win7 and higher, otherwise the
Functional Device Object of the stack
Arg4: ffff81800877d010, The blocked IRP
MH.
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