[PATCH] PPC64: EEH Recovery

Nathan Fontenot nfont at austin.ibm.com
Thu Jan 20 03:00:22 EST 2005

Paul Mackerras wrote:

> 5. AFAICS userland will get an unplug notification for the device, but
>    nothing to indicate that is due to an EEH slot isolation event.  I
>    think userland should be told about EEH events.

Currently there is a way for userland to determine if a hotplug event 
they receive is due to an EEH slot isolation event.  It's not very 
pretty and requires the rtas_errd daemon to be running.

The RTAS event generated from the EEH event is logged to 
/var/log/platform by rtas_errd.  Userland scripts would have to search 
the file for a recent EEH event matching their device to make this 
determination.  This isn't as nice as a direct notification but is what 
we have at this point.

Nathan Fontenot

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