Bug 393671

Summary: Could patch from SynCE team be picked up into kernel?
Product: [Fedora] Fedora Reporter: Alexey Neyman <alex.neyman>
Component: kernelAssignee: Kernel Maintainer List <kernel-maint>
Status: CLOSED INSUFFICIENT_DATA QA Contact: Fedora Extras Quality Assurance <extras-qa>
Severity: medium Docs Contact:
Priority: low    
Version: 8CC: chris.brown, jonstanley
Target Milestone: ---   
Target Release: ---   
Hardware: i686   
OS: Linux   
Whiteboard:
Fixed In Version: Doc Type: Bug Fix
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 2008-02-13 23:32:58 UTC Type: ---
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Embargoed:
Attachments:
Description Flags
Patch updated to 2.6.23 kernel none

Description Alexey Neyman 2007-11-21 06:01:45 UTC 
From Bugzilla Helper:
User-Agent: Mozilla/5.0 (compatible; Konqueror/3.5; Linux) KHTML/3.5.8 (like Gecko)

Description of problem:
There is a patch posted by the SynCE team to kernels > 2.6.21 that needs to be 
applied in order to connect Windows Mobile 5/6 PDAs to Linux host:

http://www.synce.org/index.php/Connecting_your_Windows_Mobile_2005_device_via_USB_(usb-rndis-lite)

The patch is against a 2.6.21 kernel; the 2nd hunk is already present in the 
2.6.23 kernel. Without the patch, connecting a PDA results in rndis_host being 
never configured, and on the PDA, ActiveSync hogs the CPU to 100% load.



Version-Release number of selected component (if applicable):


How reproducible:
Always


Steps to Reproduce:
1. Connect a PDA with Windows Mobile 5/6.
2. See that rndis_host interface doesn't activate, try to use the PDA and find 
that it is runnning very sloooooow.

Actual Results:


Expected Results:


Additional info:
Comment 1 Alexey Neyman 2007-11-21 06:03:42 UTC 
Created attachment 265701 [details]
Patch updated to 2.6.23 kernel
Comment 2 Chuck Ebbert 2007-11-21 18:50:48 UTC 
Unless this patch is reviewed and accepted by the upstream maintainers we can't
put it in Fedora since it might break something.
Comment 3 Alexey Neyman 2007-11-21 19:35:56 UTC 
As far as I understand, not all the patches applied to Fedora kernels are 
upstream-approved. In this case, would it be possible to include such a patch 
if I reworked it so that the current behavior is default and the behavior 
introduced by SynCE patch is enabled by some module parameter? This way it 
could be configurable in /etc/modprobe.conf.
Comment 4 Chuck Ebbert 2007-11-21 19:58:19 UTC 
Why not just submit it upstream for comments first? If it's needed for this
device to work, then it should be upstream so everyone gets it.
Comment 5 Alexey Neyman 2007-11-21 20:18:09 UTC 
You must be mistaken: I am not SynCE maintainer; I am just a Fedora user and 
an owner of a WM6 device that triggers this bug when plugged in. I am not 
knowledgeable enough even to describe what the patch does. For me, the patch 
from SynCE site just fixes the problem - that's why I asked if Fedora kernel 
maintainers could pick it up.

Otherwise, I'll have to stick to creating custom kernels for the F8 lifetime 
every time I update the packages.
Comment 6 Chuck Ebbert 2007-12-07 21:19:11 UTC 
Does this patch from 2.6.24 work?

http://git.kernel.org/git/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commitdiff_plain;h=500d2c2f7b8c1cf6194dc9e8f47c6e2295fc5be5
Comment 7 Jon Stanley 2008-01-17 00:53:27 UTC 
Alexey -

Have you had a chance to try the 2.6.24 patch posted in comment #6?
Comment 8 Christopher Brown 2008-02-13 23:32:58 UTC 
Closing as no comment in over two months now...

Alexey - please re-open if this is still an issue in 2.6.24.