Kernel disabling interrupt #32

[Joe Schmoe]

I was messing around (as root) with the commands found at:

http://g0kao.wordpress.com/2013/08/08/ ... berry-pi/

Specifically, I did:

Code: Select all

udevadm info -a -p  $(udevadm info -q path -n /dev/ttyUSB0)

This worked a few times, then I got a "write(1)" style message from the kernel with the above message (paraphrased - don't have the exact text in front of me). And the machine (the Pi) completely froze and had to be power cycled.

Is this a known bug? I've never seen this message before.

It is related to the "udevadm" stuff, or is that just a coincidence?

[Joe Schmoe]

No coincidence. Definitely related to udevadm. It has now happened a second time - running as user pi this time. If nothing else, makes a good denial-of-service attack.

See attached picture.

Once you get this message, the entire USB subsystem is messed up (though still [barely] functional - enough to shut system down).

Who else does this need to be reported to?

I can give more details (uname output, etc, if needed)

[AndrewS]

Who else does this need to be reported to?

https://github.com/raspberrypi/linux/issues

I can give more details (uname output, etc, if needed)

The more detail you can give in your bug-report, the better!