Hey all... Some of you may remember me and my EHCI problem, but for those that don't, I'll summerize the details.
Basically, if I load ehci-hcd into my kernel, and plug ANY USB devices in, the computer completely hangs. (No magic sysrq keys, no kernel panic messages, no indication at all that the system is about to go to the great big bitbucket in the sky.)
The last email messages I have between us were inconclusive. I almost suspect your EHCI is broken; nobody else has ever reported such a problem. (And "broken" is fully compatible with "works in Windows"; especially since MSFT has access to chip errata and workarounds that aren't generally known.)
However, as of August 25 I was expecting more info from you:
The tweak is enabling EHCI_VERBOSE_DEBUG as well CONFIG_USB_DEBUG, then Alt-SysRq-8 to make debug messages go to your console (you're not using X11 here, "telinit 2" and login that way).
Then when you plug in whatever device, you'll see messages coming out on the console. The last ones before the hang are what I'll be wanting to know. ...
Various things can misbehave, there's no point in wondering what unless you can report the last things going on before lockup.
So far as I can tell, I never got any of that information.
- Dave
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