From: Fabio Estevam <festevam@gmail.com>
To: Guenter Roeck <linux@roeck-us.net>
Cc: wim@linux-watchdog.org, linux-watchdog@vger.kernel.org,
Yongcai Huang <Anson.Huang@nxp.com>,
Shawn Guo <shawnguo@kernel.org>,
NXP Linux Team <linux-imx@nxp.com>,
Sascha Hauer <kernel@pengutronix.de>
Subject: Re: [PATCH 1/5] watchdog: imx7ulp: Fix reboot hang
Date: Mon, 4 Nov 2019 10:45:18 -0300 [thread overview]
Message-ID: <CAOMZO5AvCHo6pOfX32Bz-r8AjmbuqFWc5YUho9S1Gz8Tdo2SBA@mail.gmail.com> (raw)
In-Reply-To: <20191102153631.GA5514@roeck-us.net>
Hi Guenter,
On Sat, Nov 2, 2019 at 12:36 PM Guenter Roeck <linux@roeck-us.net> wrote:
>
> On Tue, Oct 29, 2019 at 02:40:33PM -0300, Fabio Estevam wrote:
> > 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: 41b630f41bf7 ("watchdog: Add i.MX7ULP watchdog support")
> > Signed-off-by: Fabio Estevam <festevam@gmail.com>
>
> Reviewed-by: Guenter Roeck <linux@roeck-us.net>
>
> However, just to be sure: This registers the watchdog based restart handler
> as restart handler of last resort. I assume this on purpose, I just want
> to make sure it is intentional since it is not explicitly mentioned in
> the commit message.
To be honest, I thought that registering the restart handler was mandatory.
By the way, I have just noticed that even though this patch fixes the
reboot on a imx7ulp evk board, it does not work on a imx7ulp com
board.
I will debug this, so please discard this patch for now. The other
ones of this series should be fine to apply.
Thanks
next prev parent reply other threads:[~2019-11-04 13:45 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-10-29 17:40 [PATCH 1/5] watchdog: imx7ulp: Fix reboot hang Fabio Estevam
2019-10-29 17:40 ` [PATCH 2/5] watchdog: imx7ulp: Pass the wdog instance inimx7ulp_wdt_enable() Fabio Estevam
2019-11-02 15:37 ` Guenter Roeck
2019-10-29 17:40 ` [PATCH 3/5] watchdog: imx7ulp: Remove unused structure member Fabio Estevam
2019-11-02 15:39 ` Guenter Roeck
2019-10-29 17:40 ` [PATCH 4/5] watchdog: imx7ulp: Remove inline annotations Fabio Estevam
2019-11-02 15:39 ` Guenter Roeck
2019-10-29 17:40 ` [PATCH 5/5] watchdog: imx7ulp: Use definitions instead of magic values Fabio Estevam
2019-11-02 15:41 ` Guenter Roeck
2019-11-02 15:36 ` [PATCH 1/5] watchdog: imx7ulp: Fix reboot hang Guenter Roeck
2019-11-04 13:45 ` Fabio Estevam [this message]
2019-11-04 14:06 ` Guenter Roeck
2019-11-07 17:46 ` Fabio Estevam
2019-11-08 14:39 ` Guenter Roeck
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