Bug 5467
| Summary: | oops in usbcore with kernel 2.6.14-rc4 + gregkh-all-2.6.14-rc4.patch (18-Oct-2005 19:25) | ||
|---|---|---|---|
| Product: | Drivers | Reporter: | Frieder B (linux-stuff) |
| Component: | USB | Assignee: | Greg Kroah-Hartman (greg) |
| Status: | CLOSED CODE_FIX | ||
| Severity: | normal | CC: | stern |
| Priority: | P2 | ||
| Hardware: | i386 | ||
| OS: | Linux | ||
| Kernel Version: | 2.6.14-rc4 + gregkh-all-2.6.14-rc4.patch | Subsystem: | |
| Regression: | --- | Bisected commit-id: | |
| Bug Depends on: | |||
| Bug Blocks: | 5089 | ||
| Attachments: |
dmesg-2.6.14-rc4-gregkh-patches
proc-bus-usb-devices proc-bus-usb-devices_new Fix Greg's endpoint attribute stuff |
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Description
Frieder B
2005-10-19 09:41:59 UTC
Created attachment 6332 [details]
dmesg-2.6.14-rc4-gregkh-patches
complete dmesg-output
What type of device are you removing? The log shows that it was a USB printer. Frieder, can you attach the contents of /proc/bus/usb/devices with the printer plugged in? first scenario: the printer is on the oops occurs during gentoo Created attachment 6334 [details] proc-bus-usb-devices in reply to Comment #3 Created attachment 6335 [details]
proc-bus-usb-devices_new
the other does not contain the required informations
Aha -- multiple altsettings! Just as I thought. Greg, this is the problem I warned about earlier. Your endpoint-attribute sysfs code doesn't work when altsettings get changed. On Thu, Oct 20, 2005 at 07:44:44AM -0700, bugme-daemon@kernel-bugs.osdl.org wrote: > Aha -- multiple altsettings! Just as I thought. > > Greg, this is the problem I warned about earlier. Your endpoint-attribute > sysfs > code doesn't work when altsettings get changed. Ok, then we need some usb core changes in order to handle this properly, right? Created attachment 6357 [details]
Fix Greg's endpoint attribute stuff
Greg: Somehow I _knew_ you were going to say that! :-)
Frieder, see if this patch helps. I wrote it for 2.6.14-rc4 plus
gregkh-all-2.6.14-rc4.patch. My copy of gregkh-all is a little old, so let me
know if you have any trouble applying this patch.
Greg: Eww! Don't you believe in wrapping lines before 80 columns or checking
for error returns from kzalloc etc.?
Alan your patch applied fine and seems to fix the oops thx |