Actually, I haven't tried the patch. The instructions are not detailed enough for me to use. The person who wrote has "issues" and isn't helpful. Let's leave it at that. If anyone can explain in detail how to patch a kernel, I'm willing to try it. Otherwise, my beagleboard XM is useless. It will crash in 5 minutes or 5 hours. They are willing to RMA the unit for the exact same flawed design. But all that means is the lockup issue might be less frequent, but still be there. That to me is a reliability issue anyone buying a Beagleboard XM will face. Maybe instead of crashing daily it would crash weekly or monthly. Given that this is a hardware bug, I believe all Beagleboard XMs have this problem. But some worse than others. FWIW, it seems Ubuntu runs longer than Opensuse. Not so with Fedora. It crashes as fast as openuse. Ubuntu 12.04 yielded diagnostics on the serial port and in fact returned control to the serial port instead of crashing. That is how it was determined that the USB chip was the problem. Ubuntu 12.10 does not return control to the serial port. It just crashes and has to be rebooted to use again. This makes me think they patched the kernel and the patch is not sufficient in totally fixing the problem. Another issue is the Beagleboard XM under openuse cannot be rebooted with init 6. It just shuts down. Ubuntu can reboot the hardware. Canonical doesn't work in the open as much as Fedora or Opensuse, so I don't know how to reach anyone working on the Arm distribution. But clearly they have fixed some bugs and these fixes have not found their way out of the company. ------Original Message------ From: Alexander Graf To: gary Cc: opensuse-arm@opensuse.org Subject: Re: [opensuse-arm] Beagleboard XM freezes; suspect USB issue Sent: Feb 25, 2013 5:00 AM On 21.02.2013, at 06:39, gary wrote:
In an effort to figure out this problem, I loaded some other linux distributions. It turns out Ubuntu can recover from this problem rather than lock up. It also provides some useful diagnostics. It turns out the lock up can be (in theory) cured with this patch:
https://github.com/RobertCNelson/stable-kernel/blob/v3.7.x/patches/omap_sprz...
Any help on how to apply this patch would be appreciated. Or has the patch already been applied and 12.3 will have the fix?
Have you found any particular reason this patch hasn't gone upstream? If no, it might be a good idea to send it yourself. We should easily get it back through the normal Linux stable tree then. I'm quite reluctant to move this only into the openSUSE kernel. That's not how community work should look like :). Alex N§²æìržyéZ)z{.±æ«ë§²æìržz^ˬzàN(Ö¶Ø^£ ÞéZ)z{.±æ«ê0êè¥éìºÇš®