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From: Allen Pais <allen.lkml@gmail.com>
To: jens.wiklander@linaro.org, zajec5@gmail.com
Cc: linux-mips@vger.kernel.org, linux-kernel@vger.kernel.org,
	op-tee@lists.trustedfirmware.org,
	Allen Pais <apais@linux.microsoft.com>
Subject: [PATCH 0/2] optee: fix OOM seen due to tee_shm_free()
Date: Wed, 17 Feb 2021 14:57:12 +0530	[thread overview]
Message-ID: <20210217092714.121297-1-allen.lkml@gmail.com> (raw)

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

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(-)

-- 
2.25.1


             reply	other threads:[~2021-02-17  9:28 UTC|newest]

Thread overview: 11+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-02-17  9:27 Allen Pais [this message]
2021-02-17  9:27 ` [PATCH 1/2] optee: fix tee out of memory failure seen during kexec reboot Allen Pais
2021-02-18 20:03   ` Dhananjay Phadke
2021-02-22 12:45   ` Allen Pais
2021-02-23  8:19     ` Jens Wiklander
2021-02-23 16:26       ` Allen Pais
2021-02-24  8:15         ` Jens Wiklander
2021-02-24 16:53           ` Allen Pais
2021-02-17  9:27 ` [PATCH 2/2] firmware: tee_bnxt: implement shutdown method to handle kexec reboots Allen Pais
2021-02-18 18:12 ` [PATCH 0/2] optee: fix OOM seen due to tee_shm_free() Dhananjay Phadke
2021-02-23  6:17 ` Allen Pais

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