QTopia kernel oops and other questions/comments.

Andy Green andy at openmoko.com
Tue Jul 29 09:43:15 CEST 2008

Hash: SHA1

Somebody in the thread at some point said:
| trying the most recent qtopia images (without any additional fixes). On
| boot I mentioned some kernel oopses... here is one (phone was attached
| via usb on boot to the laptop... and now remains attached although I use
| wifi for terminal ssh)
| 1.
| sysfs: duplicate filename 'hci_usb' can not be created
| WARNING: at fs/sysfs/dir.c:424 sysfs_add_one()

Hm this looks like the kernel has built-ins for these drivers, and later
we come and try to insert a module for the same driver.  Since the
kernel build process either makes a built-in or a module if it does
anything, it also means that the module belongs to an older / different

So I guess you updated the uImage.bin monolithic kernel to a more
built-in one (generally a good thing) but still in /lib/module/* are the
old modules from another kernel and qtopia likes to try to insert them.

Hopefully soon we will move to a /lib/module/<big version string> model
where this accidental use of old modules is disallowed.  But anyway that
is what I think happens to you here.

- -Andy
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