On Sat, Nov 12, 2011 at 08:23:32PM -0200, Daniel Hilst Selli wrote:
> Two questions about taint system..
>
> 1. I have a installation of archlinux with kernel 3.0, just after boot I
> cat /proc/sys/kenrel/tainted and receives 1024, but cat
> /var/log/messages | grep -i taint gives me no output. How can I know
> what is tainting my kernel?
Look for the "BIOS is broken..." message, 1024 is
TAINT_FIRMWARE_WORKAROUND.
> 2. I was studying char devices, and have writed some code. I have put
> the MODULE_LICENSE("GPL"); on the module, build it, put it on a initrd
> image and boot with qemu using -kernel and -initrd options. When I
> loadit with modprobe I receives a message on console saying that kernel
> was tainted and /proc/sys/kernel/tainted gives me 4024. There is any
> other thing on module, besides license that can taint the kernel?
Yes, lots of things, look at kernel.h for the full list.
hope this helps,
greg k-h
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