[maemo-developers] Continuous reboot problem with the N770 hacker edition
From: Rainer Dorsch rdorsch at web.deDate: Sat Apr 21 19:15:04 EEST 2007
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Am Freitag, 20. April 2007 20:56 schrieben Sie: > At Fri, 20 Apr 2007 18:26:42 +0200, > > Rainer Dorsch <rdorsch at web.de> wrote: > > I used the N770 with the hacker edition of OS2007 heavily last week and > > it broke: > > The device is rebooting constantly, even putting it into RD mode did not > > help getting rid of this. The sequence is > > 1. blue boot progress bar > > 2. Nokia hands and sound > > 3. almost immidiately after the sound, a white stripe appears on the left > > of the display. Looks like this is the Maemo menue bar. Then the screen > > becomes white > > 4. after approx. 19 seconds the device reboots and continues with 1. > > > > I interrupt the reboot cycles by removing the battery. > > I'm using Gergale and this happens to me about once every week or two. > I had enough time after the device boots to run xterm and top. The > problem was jffs2_gcd_mtd4 was taking 100% of the CPU and a fair > amount of memory. This led me to suspect that the OOM killer was > killing an essential task and thereby causing the watchdog timer to > reset the device. To prevent this, I simply disabled the watchdog > time. Now when this happens, jffs2_gcd_mtd4 burns CPU (and thus is > unusable) but it is a few hours between resets. After about day or > two, the device is happy again. > > Neal Thanks for the quick reply. I thought when I put the device into RD mode, the watchdog is not resetting the device at all (but I might be wrong). Is there a way to change the watchdog timer, when the device resets, before maemo is fully up? I will flash the device on Monday evening, if nobody is interested in debug data. Thanks, Rainer -- Rainer Dorsch Lärchenstr. 6 D-72135 Dettenhausen 07157-734133 email: rdorsch at web.de jabber: rdorsch at jabber.org GPG Fingerprint: 5966 C54C 2B3C 42CC 1F4F 8F59 E3A8 C538 7519 141E Full GPG key: http://pgp.mit.edu/
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