Messages in this thread | | | Date | Sat, 12 Apr 2008 17:12:12 +0200 | From | Marcus Nutzinger <> | Subject | Re: Kernel BUG at fs/sysfs/file.c:552 |
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> With the nvidia driver, you're not going to get much help on this list > :(
Well I don't like the driver either but the problem is really totally unrealted I think..
> Hm, did you create two files with the same name?
No I only wanted to create one file on the first try, just to test the sysfs interface. It should only give an attribute under /sys/devices, called "writer_pid", which prints 0 or an actual PID of a process writing to my virtual device.
I've just tried some other stuff just this minute and now it seems to work, I get a directory under /sys/devices! Unfortunately I can't say what the real problem was and why this kernel bug occured...
But I've another question: This directory doesn't only contain the attribute ("writer_pid") which I've created in the code, but also a subdirectory "power" and another attribute "uevent".. Could you explain to me what's this all about? Are these just standard attributes which are added to every device which registers there? (Sounds obviousely because other directories under my /sys/devices tree contain them too..).
> Care to post your code?
I've uploaded it to http://www.nuuz.at/temp/vdd.c. I didn't want to post the whole code here, I hope that's ok!
thanks for replying, regards Marcus Nutzinger -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.6 (GNU/Linux) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org
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