Bug#605275: EeePC 1005HAG still freezes when probing the builtin 3G modem
On Sun, Feb 26, 2012 at 18:07, Greg KH <greg@kroah.com> wrote:
> On Sun, Feb 26, 2012 at 05:38:46PM +0100, Maik Zumstrull wrote:
> I don't see any long delay in your kernel log messages.
The problem isn't visible in dmesg AFAIK. I was asked to include this
output in the report just in case. It's visible in strace (attached to
Bugzilla, can take a fresh trace if you'd like), and to the user
because the whole system ignores user input during the freeze.
> What exactly is stalling so long?
When someone previously looked at the issue with me, the delay seemed
to be in acquiring the big TTY lock.
> Is the device stuck doing something?
Not as far as I know.
> If you enable debugging for usb and/or the driver, what does the kernel
> log show?
I don't think we've done that yet. Quick pointer on how to do this?
I'm reasonably experienced, but not a kernel developer. Just pass
debug=1 to certain modules?
> What driver is bound to this device, the option one?
Yes. The drivers symlink points to bus/usb/drivers/option, anyway, I
hope that's what you meant.
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