Am Mittwoch, 15. März 2006 15:44 schrieb Paul Fulghum:
> Oliver Neukum wrote:
> > Am Mittwoch, 15. März 2006 05:23 schrieb Bob Copeland:
> >>acm_tty_unregister if=cee8896c dev=cee88980 ref=2
> >>class_device_del call sysfs_remove_link class_dev=c9a6aec4 ref=2
> >>dentry=c8f7a2b4
> >>class_device_del call sysfs_remove_link class_dev->dev=cee88980 ref=1
> >>dentry=ceaaa1a4 class_name=tty:ttyACM0
> >>sysfs_hash_and_remove dir=ceaaa1a4 d_inode=6b6b6b6b
> >
> > sysfs_hash_and_remove() is called for a freed dentry. This is from the
> > second
> > call in class_device_del().
>
> Yes, this is removing the back link to the
> tty class device which also has a good reference count.
> So device (really the associated kobject) reference counting
> is not the problem.
This is an unproven conjecture. Kobjects have their own refcounts.
Could you extend the debugging printks to them?
Regards
Oliver
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