On Sun, Dec 18, 2011 at 09:24:12PM +0100, Heiko Stübner wrote: > Am Sonntag 18 Dezember 2011, 20:45:18 schrieb Russell King - ARM Linux: > > On Sun, Dec 18, 2011 at 08:33:32PM +0100, Heiko Stübner wrote: > > > Am Sonntag 18 Dezember 2011, 20:01:02 schrieben Sie: > > > > On Sun, Dec 18, 2011 at 07:50:37PM +0100, Heiko Stübner wrote: > > > > > I didn't get this far. With your patch the Oopses already happen > > > > > during the startup of the system / the loading of the modules. > > > > > > > > > A bit of the message spew I got during testing with linux- > next-20111216: > > > > In some way, this is a good thing because it's showing that there's > > > > problems with kobject lifetime rules. > > > > > > > > The #2 and further oops dumps are a result of corrupting the work > > > > queues as a result of #1, so #2 onwards should be ignored. > > > > > > > > I suspect if you avoid loading the s3c_hsudc module these will go away. > > > > > > nope :-), same faults happen even if s3c-hsudc is not present at all. > > > So it seems, this delayed cleanup poses problems for other drivers as > > > well. > > > > Okay, let's try to find out which one it is. Please use the attached > > patch - it'll be a little more noisy, reporting which kobjects are > > being released at the point when they're added to the workqueue. > The cuplrit seems to be a kobject named "holders" and from what I > gathered is from kernel/module.c and handling module sysfs entries. > > > Partial log below: > > kobject: 'bq24022' (c78a9a80): kobject_release > [...] > kobject: 'gpio-vbus' (c78a9cc0): kobject_release > [...] > kobject: 'bq24022' (c78a9a80): kobject_cleanup > kobject: 'gpio-vbus' (c78a9cc0): kobject_cleanup > [...] > Found /sbin/init, booting ... > > INIT: version 2.88 booting > > Starting the hotplug events dispatcher: udevdudevd[367]: starting version 172 > . > Synthesizing the initial hotplug events...done. > Waiting for /dev to be fully populated... > [...] > Cleaning up ifupdown.... > Loading kernel modules... > kobject: 'holders' (c7addc80): kobject_release > kobject: 'notes' (c7add080): kobject_release > done. > Activating lvm and md swap...done. > Checking file systems...fsck from util-linux 2.19.1 > done. > [...] > kobject: 'holders' (c7addc80): kobject_cleanup > Unable to handle kernel paging request at virtual address bf055504 > pgd = c0004000 > [bf055504] *pgd=371f9811, *pte=00000000, *ppte=00000000 > Internal error: Oops: 7 [#1] Please post the entire first oops dump for the above run - it may contain useful information to properly track this down. Thanks. -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
