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From: Allen Pais <allen.lkml@gmail.com>
To: jens.wiklander@linaro.org, zajec5@gmail.com
Cc: bcm-kernel-feedback-list@broadcom.com,
	linux-arm-kernel@lists.infradead.org,
	linux-kernel@vger.kernel.org, op-tee@lists.trustedfirmware.org,
	Allen Pais <apais@linux.microsoft.com>
Subject: [PATCH v2 0/2] optee: fix OOM seen due to tee_shm_free()
Date: Thu, 25 Feb 2021 14:36:08 +0530	[thread overview]
Message-ID: <20210225090610.242623-1-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

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


             reply	other threads:[~2021-02-25  9:12 UTC|newest]

Thread overview: 28+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-02-25  9:06 Allen Pais [this message]
2021-02-25  9:06 ` [PATCH v2 1/2] optee: fix tee out of memory failure seen during kexec reboot Allen Pais
2021-03-01 14:35   ` Jens Wiklander
2021-03-02  5:51     ` Allen Pais
2021-03-16 13:21     ` Allen Pais
2021-03-19  7:00       ` Jens Wiklander
2021-03-22  7:59         ` Allen Pais
2021-05-05 13:45         ` Allen Pais
2021-05-06  7:02           ` Jens Wiklander
2021-05-06  7:10             ` Allen Pais
2021-05-06  7:19               ` Jens Wiklander
2021-05-06  7:29                 ` Allen Pais
2021-05-06  8:15                   ` Jens Wiklander
2021-05-06  8:35                     ` Allen Pais
2021-05-07  7:03                     ` Allen Pais
2021-03-18 20:51   ` Tyler Hicks
2021-02-25  9:06 ` [PATCH v2 2/2] firmware: tee_bnxt: implement shutdown method to handle kexec reboots Allen Pais
2021-03-18 20:55   ` Tyler Hicks
2021-05-07  3:58 ` [PATCH] optee: Disable shm cache when booting the crash kernel Tyler Hicks
2021-05-07  7:00   ` Allen Pais
2021-05-07  9:23     ` Jens Wiklander
2021-05-07  9:32       ` Allen Pais
2021-05-07 13:17       ` Tyler Hicks
2021-05-10  7:31         ` Jens Wiklander
2021-05-12  0:23           ` Tyler Hicks
2021-05-12  5:50             ` Jens Wiklander
2021-05-17 20:24               ` Tyler Hicks
2021-05-17 20:31   ` Tyler Hicks

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