Thread (33 messages) flat view 33 messages, 8 authors, 2020-05-15

Re: [PATCH 00/15] net: taint when the device driver firmware crashes

From: Shannon Nelson <hidden>
Date: 2020-05-10 01:01:57
Also in: lkml

On 5/8/20 9:35 PM, Luis Chamberlain wrote:
Device driver firmware can crash, and sometimes, this can leave your
system in a state which makes the device or subsystem completely
useless. Detecting this by inspecting /proc/sys/kernel/tainted instead
of scraping some magical words from the kernel log, which is driver
specific, is much easier. So instead this series provides a helper which
lets drivers annotate this and shows how to use this on networking
drivers.
If the driver is able to detect that the device firmware has come back 
alive, through user intervention or whatever, should there be a way to 
"untaint" the kernel?  Or would you expect it to remain tainted?

sln
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