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Date:   Fri, 15 Oct 2021 15:37:06 +0000
From:   "Luck, Tony" <>
To:     Shuai Xue <>,
        "" <>,
        "" <>,
        "" <>,
        "" <>,
        "" <>,
        "" <>
CC:     "" <>,
        "" <>
Subject: RE: [PATCH] ACPI, APEI, EINJ: Relax platform response timeout to 1

> We observe that the waiting time for DDR error injection is about 10 ms
> and that for PCIe error injection is about 500 ms in Arm platfrom.
> In this patch, we relax the response timeout to 1 second and allow user to
> pass the time out value as a argument.

Spinning for 1ms was maybe ok. Spinning for up to 1s seems like a bad idea.

This code is executed inside a mutex ... so maybe it is safe to sleep instead of spin?


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