On 11:30 Wed 11 Mar 2009, Alan Stern wrote: > On Tue, 10 Mar 2009, Brandon Philips wrote: > > First observation: I can't reproduce this bug with console=ttyS0,115200 > > console=tty0. Everything works great actually. Is writing to the serial > > port causing just enough delay to hide the bug? > > Maybe it is, maybe it isn't. There's no way to know at present. > > If you can't reproduce the bug when using a serial console, how did you > acquire the system log you posted earlier? Network console? Yes, I used netconsole. > > /sys/power/disk tests > > --------------------- > > testproc # OK > > test # Unlink after no-IRQ? ... > > platform # Unlink after no-IRQ? ... > > reboot # Unlink after no-IRQ? ... > > shutdown # Unlink after no-IRQ? ... > > Okay, so "test" is the thing to use. Although since your system hangs, > it doesn't make much difference... > > The next thing to try is to make sure the bug is still present with the > lastest development kernel. That would be 2.6.29-rc7 together with > > http://www.kernel.org/pub/linux/kernel/people/gregkh/gregkh-2.6/gregkh-all-2.6.29-rc7.patch > > If it is then we'll have to try some diagnostic patches to find out > what's going wrong. It still locks up with "Unlink after no-IRQ" with -rc7 + greg's patches and test in /sys/power/disk. One of the times when I booted up this new Kernel I got some errors out of ehci_hcd/khubd: http://ifup.org/~philips/467317/khubd.timeout It only happened on that boot and I haven't seen those ehci_hcd/khubd errors again since. Thanks, Brandon -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
