Re: [PATCH 0/2] optee: fix OOM seen due to tee_shm_free()

Allen Pais
2021-02-23T06:18:10Z

>
> The following out of memory errors are seen on kexec reboot
> from the optee core.
>
> [ 0.368428] tee_bnxt_fw optee-clnt0: tee_shm_alloc failed
> [ 0.368461] tee_bnxt_fw: probe of optee-clnt0 failed with error -22
>
> tee_shm_release() is not invoked on dma shm buffer.
>
> Implement .shutdown() in optee core as well as bnxt firmware driver
> to handle the release of the buffers correctly.
>
> More info:
> https://github.com/OP-TEE/optee_os/issues/3637

Jens,

Could you please take sometime out and review the series.

Thanks.

>
> Allen Pais (2):
> optee: fix tee out of memory failure seen during kexec reboot
> firmware: tee_bnxt: implement shutdown method to handle kexec reboots
>
> drivers/firmware/broadcom/tee_bnxt_fw.c | 9 ++++
> drivers/tee/optee/core.c | 69 ++++++++++++++++++-------
> 2 files changed, 58 insertions(+), 20 deletions(-)
>