Closed bangonkali closed 9 years ago
Your first clue is the line "PC is at usb_hcd_unmap_urb_setup_for_dma+0x8/0xb0". From that it would appear that the issue is in the usb_hcd_unmap_urb_setup_for_dma function. The version in the rocketboards.org kernel source is probably different though. Try looking at that function in the kernel sources you are using and see if anything stands out. If there isn't anything obvious, you probably want to send a bug report to the relevant mailing list. That would probably be rocketboards.org and not the main kernel mailing list.
Hey, did you ever figure this one out?
Can you suggest any tools, or method that can help me debug this kind of error? It hangs the entire system and I had to reboot after this error. It only occurs after around 30min of WebCam operation while detecting faces using OpenCV's facedetect.cpp example program. The error was shown on the serial com line (Putty), and the desktop would then hang.
I understand this is some sort of kernel module level error. Do you have any tips where I can start to investigate and see more logs about this? It may not be OpenCV specific.