diff options
| author | Amit Pundir <amit.pundir@linaro.org> | 2020-06-11 22:02:24 +0530 |
|---|---|---|
| committer | Amit Pundir <amit.pundir@linaro.org> | 2020-06-12 04:50:46 +0000 |
| commit | 66a926c714312da505cefa7a2856eae9f391ea67 (patch) | |
| tree | 54964aca2e8070f5d02ab495b130420fa52aee27 /qcom | |
| parent | 29e6b8138bf1a863b7f78d3a6b7a2eef5e3643c1 (diff) | |
init.qcom.rc: Add a custom shutdown trigger to kill rmtfs
There is a kernel bug uncovered in db845c modem shutdown
path in v5.7-rc1, where "reboot" or "reboot bootloader"
commands do not work as expected when the device is
connected to a WiFi AP. The db845c hard crashes on
reboot, resulting in the device getting stuck in the usb
crash debug mode and not coming back up without a hard
power off. There is no reboot regression when the board
is not connected to any AP.
This kernel issue is already reported upstream:
https://lists.infradead.org/pipermail/ath10k/2020-April/014970.html
https://lists.infradead.org/pipermail/ath10k/2020-June/015206.html
For now here is a userspace workaround where we do not
wait for modem to shutdown gracefully (SIGTERM during
reboot), instead we stop the rmtfs service explicitly
using the "on shutdown" init trigger, thereby sending
a SIGKILL signal.
Signed-off-by: Amit Pundir <amit.pundir@linaro.org>
Change-Id: Ieb8b65ceb979b1f698ddf7ae48ce49652b99a9dc
Diffstat (limited to 'qcom')
| -rw-r--r-- | qcom/init.qcom.rc | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/qcom/init.qcom.rc b/qcom/init.qcom.rc index 5867179..4319569 100644 --- a/qcom/init.qcom.rc +++ b/qcom/init.qcom.rc @@ -56,3 +56,6 @@ on post-fs-data write /sys/class/firmware/timeout 1 start tqftpserv start rmtfs + +on shutdown + stop rmtfs |