Re: [PATCH v4 0/8] serial: qcom-geni: Overhaul TX handling to fix crashes/hangs

[Konrad Dybcio]

On 6/11/24 00:24, Douglas Anderson wrote:
> While trying to reproduce -EBUSY errors that our lab was getting in
> suspend/resume testing, I ended up finding a whole pile of problems
> with the Qualcomm GENI serial driver. I've posted a fix for the -EBUSY
> issue separately [1]. This series is fixing all of the Qualcomm GENI
> problems that I found.
>
> As far as I can tell most of the problems have been in the Qualcomm
> GENI serial driver since inception, but it can be noted that the
> behavior got worse with the new kfifo changes. Previously when the OS
> took data out of the circular queue we'd just spit stale data onto the
> serial port. Now we'll hard lockup. :-P
>
> I've tried to break this series up as much as possible to make it
> easier to understand but the final patch is still a lot of change at
> once. Hopefully it's OK.

Tested-by: Konrad Dybcio <konrad.dybcio@xxxxxxxxxx>

Konrad