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[ Upstream commit6083ab7b2f] The following hang is observed when a 'reboot' command is issued: # reboot # Stopping network: OK Stopping klogd: OK Stopping syslogd: OK umount: devtmpfs busy - remounted read-only [ 8.612079] EXT4-fs (mmcblk0p2): re-mounted. Opts: (null) The system is going down NOW! Sent SIGTERM to all processes Sent SIGKILL to all processes Requesting system reboot [ 10.694753] reboot: Restarting system [ 11.699008] Reboot failed -- System halted Fix this problem by adding a .restart ops member. Fixes:41b630f41b("watchdog: Add i.MX7ULP watchdog support") Signed-off-by: Fabio Estevam <festevam@gmail.com> Reviewed-by: Guenter Roeck <linux@roeck-us.net> Link: https://lore.kernel.org/r/20191029174037.25381-1-festevam@gmail.com Signed-off-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org> Signed-off-by: Sasha Levin <sashal@kernel.org>
Linux kernel
============
There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.
In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``. The formatted documentation can also be read online at:
https://www.kernel.org/doc/html/latest/
There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.
Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.