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SubjectRe: linux-next: WARNING: at kernel/panic.c:375 __stack_chk_test+0x50/0x54()
Kevin Winchester wrote:
>
> Hi Arjan,
>
> There doesn't seem to be an entry in MAINTAINERS for stack protector,
> but your signoff was on the last stack protector related commit I could
> find, so it's probably a good bet.
>
> I get the following in my dmesg after testing linux-next with the stack
> protector turned on. This is an x86-64 UP box if that helps. It
> appears to be related to the test for the feature (or perhaps that is
> supposed to happen when the feature is tested, I'm not sure...). Config
> below.
>

the important question is: exactly what gcc are you using? (and if you use a distro gcc,
which distro)

second question would be, what does the following command give?

echo "int foo(void) { char X[200]; return 3; }" | $1 -S -xc -c -O0 -mcmodel=kernel -fstack-protector - -o -

(this is the command from scripts/gcc-x86_64-has-stack-protector.sh that the kernel uses to test at compiletime
if you have stack protector support)


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