Hi Tomi, On Tue, Jun 5, 2012 at 2:33 PM, Tomi Valkeinen <tomi.valkeinen@xxxxxx> wrote: > Hi Jean, > > On Tue, 2012-06-05 at 14:17 +0200, Jean Pihet wrote: >> Hi Tomi, > >> I am using a mainline kernel (3.5.0-rc1) with the patches below integrated. >> I have an issue with suspend/resume on OMAP3 Beagleboard, where the >> system hangs at resume time. >> >> Here below is a log with the option no_console_suspend set and a few >> added messages in case of null pointer in _od_resume_noirq. >> It looks like there is no omap_device associated to the "omapdss_dpi" pdev. >> >> What do you think? How to fix this? >> Sorry I know there have been some discussions on the lists but I am >> not aware of all the details in the devices creation for DSS. >> >> / # echo mem > /sys/power/state >> [ 23.262298] PM: Syncing filesystems ... done. >> [ 23.295501] Freezing user space processes ... (elapsed 0.02 seconds) done. >> [ 23.326507] Freezing remaining freezable tasks ... (elapsed 0.02 seconds) don >> e. >> [ 23.502197] PM: suspend of devices complete after 163.766 msecs >> [ 23.511932] PM: late suspend of devices complete after 3.418 msecs >> [ 23.524444] PM: noirq suspend of devices complete after 5.860 msecs >> [ 23.531249] Disabling non-boot CPUs ... >> [ 24.476562] Powerdomain (per_pwrdm) didn't enter target state 1 >> [ 24.482818] Powerdomain (core_pwrdm) didn't enter target state 1 >> [ 24.489166] Could not enter target state in pm_suspend >> [ 24.495147] *** _od_resume_noirq: od=NULL, dev=0xc78bcc08 >> [ 24.500915] *** _od_resume_noirq: od=NULL, pdev=0xc78bcc00 >> [ 24.506805] *** _od_resume_noirq: od=NULL, pdev->name:omapdss_dpi >> [ 24.513336] Unable to handle kernel NULL pointer dereference at virtual addre >> ss 00000018 >> [ 24.521942] pgd = c62f0000 >> [ 24.524841] [00000018] *pgd=862c1831, *pte=00000000, *ppte=00000000 >> [ 24.531524] Internal error: Oops: 17 [#1] SMP ARM >> [ 24.536529] Modules linked in: >> [ 24.539764] CPU: 0 Not tainted (3.5.0-rc1-00010-g5041caa-dirty #131) >> [ 24.546844] PC is at _od_resume_noirq+0x1c/0xac >> [ 24.551635] LR is at _od_resume_noirq+0x94/0xac >> ... > > I'm on leave currently, so I can't test it right now. But can you try Oh sorry about that! > the attached patch? Or even better, try merging the tag: That fixes it! I am able to suspend/resume correctly now. > > git://gitorious.org/linux-omap-dss2/linux.git tags/omapdss-for-3.5-rc2 > > which contains the included patch plus a couple other fixes. Thanks for the link, that is certainly useful! Have a nice time on leave ;-p > > Tomi > Regards, Jean -- To unsubscribe from this list: send the line "unsubscribe linux-omap" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
