Messages in this thread | | | Date | Wed, 30 Apr 2008 21:24:27 -0300 | From | Kevin Winchester <> | Subject | Re: linux-next: WARNING: at kernel/panic.c:375 __stack_chk_test+0x50/0x54() |
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Arjan van de Ven wrote: > 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; }" | $1 -S -xc -c -O0 -mcmodel=kernel -fstack-protector - -o - > > (this is the command from scripts/gcc-x86_64-has-stack-protector.sh that the kernel uses to test at compiletime > if you have stack protector support)
Ubuntu Hardy Heron
kevin@alekhine:~$ gcc --version gcc (GCC) 4.2.3 (Ubuntu 4.2.3-2ubuntu7) Copyright (C) 2007 Free Software Foundation, Inc. This is free software; see the source for copying conditions. There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
kevin@alekhine:~$ echo "int foo(void) { char X[200]; return 3; }" | $1 -S -xc -c -O0 -mcmodel=kernel -fstack-protector - -o - bash: -S: command not found
I assume that $1 was supposed to be gcc, so how about:
kevin@alekhine:~/linux/linux-2.6/scripts$ sh gcc-x86_64-has-stack-protector.sh gcc something something
So I would assume that means I pass...
Does that help at all?
-- Kevin Winchester
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