Re: [oi-dev] (Laptop) Keyboard locking up when in kmdb panic handler

2012-10-06 Thread Richard Lowe
> Sorry for being unclear.  I was not suggesting you switch to a
> USB keyboard.  I was asking if you were using one already.

There are two reasons this tends to happen:

1) You have a USB keyboard, that we can't actually use from kmdb at all
2) You've crashed at a point where the state of the world is such that
we can't use the keyboard _right now_

If it's failing sporadically, I'd be assuming #2 though #1 is far from
impossible even then.

Are you crashing too early to get a crash dump?  It's nearly always
preferable to get a dump (if you can), than to debug the system
in-situ.

-- Rich

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Re: [oi-dev] (Laptop) Keyboard locking up when in kmdb panic handler

2012-10-06 Thread Gordon Ross
On Sat, Oct 6, 2012 at 4:45 AM, Jim Klimov  wrote:
> 2012-10-05 18:34, Gordon Ross пишет:
>
>> On Thu, Oct 4, 2012 at 4:04 AM, Jim Klimov  wrote:
>
> ...
>
>>> to "continue" (:c) to reboot the system.
>>> Unfortunately, something like 19 times out of 20 the keyboard is
>>> locked up, so it ignores my attempts to continue, ctrl+alt+del
>
> ...
>
>>> Ideas welcome,
>>> //Jim Klimov
>>
>>
>> USB keyboard?
>
>
>
> I guess I'll go find one to test. Should it be plugged before the
> panic and kmdb prompt or can be added after?
>
> Still, I thought the USB stack is another dimension of complexity
> and that would be less likely to work than the built-in kbd (the
> only one I used so far). I don't think the laptop has the option
> to legacy-emulate the HID devices (as happens on desktops with
> USB kbd/mice), but I'll look into it too.
>
> //Jim
>

Sorry for being unclear.  I was not suggesting you switch to a
USB keyboard.  I was asking if you were using one already.


-- 
Gordon Ross 
Nexenta Systems, Inc.  www.nexenta.com
Enterprise class storage for everyone

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Re: [oi-dev] (Laptop) Keyboard locking up when in kmdb panic handler

2012-10-06 Thread Jim Klimov

2012-10-05 18:34, Gordon Ross пишет:

On Thu, Oct 4, 2012 at 4:04 AM, Jim Klimov  wrote:

...

to "continue" (:c) to reboot the system.
Unfortunately, something like 19 times out of 20 the keyboard is
locked up, so it ignores my attempts to continue, ctrl+alt+del

...

Ideas welcome,
//Jim Klimov


USB keyboard?



I guess I'll go find one to test. Should it be plugged before the
panic and kmdb prompt or can be added after?

Still, I thought the USB stack is another dimension of complexity
and that would be less likely to work than the built-in kbd (the
only one I used so far). I don't think the laptop has the option
to legacy-emulate the HID devices (as happens on desktops with
USB kbd/mice), but I'll look into it too.

//Jim

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