[Skiboot] [PATCH] FSP/CONSOLE: Disable notification on unresponsive consoles

Vasant Hegde hegdevasant at linux.vnet.ibm.com
Mon Nov 6 17:41:10 AEDT 2017

On 10/31/2017 09:13 AM, Stewart Smith wrote:
> Vasant Hegde <hegdevasant at linux.vnet.ibm.com> writes:
>> Commit fd6b71fc fixed the situation where ipmi console was open (hvc0) but got
>> data on different console (hvc1).
>> During FSP R/R OPAL closes all consoles. After R/R complete FSP requests to
>> open hvc1 and sends data on this. If hvc1 registration failed or not opened in
>> host kernel then it will not read data and results in RCU stalls.
>> Note that this is workaround for older kernel where we don't have separate irq
>> for each console. Latest kernel works fine without this patch.
>> CC: stable
>> CC: Sam Mendoza-Jonas <sam at mendozajonas.com>
>> Signed-off-by: Vasant Hegde <hegdevasant at linux.vnet.ibm.com>
>> ---
>>  hw/fsp/fsp-console.c | 8 +++++---
>>  1 file changed, 5 insertions(+), 3 deletions(-)
> Merged to master as of c9cc5ef5772ebfbfff978f1c25763d733e45752c
> and 5.4.x as of d4172005b25f4247d07c2d81deeddd3a323d8b41
> Hopefully the last in the reset/reload cases around console fun.

Hope so :-)


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