lkml.org 
[lkml]   [2021]   [Feb]   [25]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
From
Subject[PATCH v2 0/2] optee: fix OOM seen due to tee_shm_free()
Date
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() 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

v2:
keep the .shutdown() method simple. [Jens Wiklander]

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 | 20 ++++++++++++++++++++
2 files changed, 29 insertions(+)

--
2.25.1

\
 
 \ /
  Last update: 2021-02-25 10:13    [W:0.133 / U:0.188 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site