On Sat, 14 Apr 2007, Matthias Andree wrote:
> I arrived at the computer today, to find khubd in D state again, but
> unfortunately, it does not show up in Alt-SysRq-T output. Do kernel
> threads show up there at all? 2.6.18.8-0.1 with SUSE patches on openSUSE
> 10.2.
As far as I know, all tasks including kernel threads should show up. They
certainly do on my machine. However you're the second person to report
that khubd doesn't appear after getting stuck in a D state.
Clearly something strange is going on. I wish I knew what it was...
> I had stopped usbmon before however, so I don't know what the events
> have been leading to this lockup. Sorry. I'll leave usbmon running now.
Something else you can do is turn on CONFIG_USB_DEBUG and then check the
dmesg log for anything significant.
Alan Stern
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