Re: High speed devices with kernel 2.6.21.5.

Alan Stern <[email protected]>
Newsgroups gmane.linux.usb.devel
Message-ID <[email protected]>
On Tue, 10 Jul 2007, Branden Sletteland wrote:

> Just tried 2.6.21-rc1 and I get the same problem. Are there snap shots
> before this?
> 
> Attached is a dmesg dump from a 2.6.20.11 kernel on the same hardware config.

It's hard to tell exactly where the problem is.

Several changes were made to ehci-hcd during the time frame between 
2.6.20 and 2.6.21-rc1.  In order, they are:

http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commitdiff_plain;h=083522d76662cda71328df1f3d75e5a9057c7c9f

http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commitdiff_plain;h=e6316565e568b3b5733be10cfca3c27259bef499

http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commitdiff_plain;h=625b5c9a0069ef1b61feb3ce599b39f1b04b5666

http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commitdiff_plain;h=57e06c11372eccf5acebdd4664eb025fee76c561

http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commitdiff_plain;h=629e4427aa817d5c9f11885420abf54b8f5967dc

You could try applying them one by one starting from 2.6.20 and see at 
which stage the problem begins.

Alan Stern


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