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SubjectRe: [PATCH v4 3/8] optee: fix tee out of memory failure seen during kexec reboot
On Thu, Jun 10, 2021 at 11:09 PM Tyler Hicks
<tyhicks@linux.microsoft.com> wrote:
>
> From: Allen Pais <apais@linux.microsoft.com>
>
> 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() method to handle the release of the buffers
> correctly.
>
> More info:
> https://github.com/OP-TEE/optee_os/issues/3637
>
> Signed-off-by: Allen Pais <apais@linux.microsoft.com>
> Reviewed-by: Tyler Hicks <tyhicks@linux.microsoft.com>

Do we really need this considering the patch "optee: Refuse to load
the driver under the kdump kernel"?

Jens

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