[maemo-users] Nightly reboots

From: Marius Gedminas marius at pov.lt
Date: Fri Mar 2 16:04:56 EET 2007
On Fri, Mar 02, 2007 at 04:07:08PM +0200, Eero Tamminen wrote:
> >My last two spontaneous reboots were attributed to 32_wd (ie. the
> >watchdog).
> I've never encountered this reboot.  Had you been doing a lot of disk
> operations (*both* saving and removing large amounts of data from the
> internal Flash) before the night on which the device reboots?

That's likely.  I upgraded several megs' worth of software during the
last several days.

> My suspicion is that sometimes the JFFS2 file system garbage collecting
> might keep the kernel busy for >1/2 minute without yielding the control
> back to scheduler.  Normally the JFFS2 GC happens only on bootup (in
> case you were wondering why the booting is sometimes slower), but
> it can be run also during normal usage. HW watchdog reboots the
> device if it's not refreshed within 1/2 min (in the JFFS2 case the
> device would probably unfreeze / function normally after GC has
> finished).

Marius Gedminas
"Don't trust a statistic you haven't faked yourself."
	-- Seen in another posting by Markus Kuhn
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