This is the mail archive of the gcc-patches@gcc.gnu.org mailing list for the GCC project.


Index Nav: [Date Index] [Subject Index] [Author Index] [Thread Index]
Message Nav: [Date Prev] [Date Next] [Thread Prev] [Thread Next]
Other format: [Raw text]

[committed]Re: [PATCH] RFA MIPS pr 14198


Eric Christopher wrote:

On Wed, 2004-02-18 at 19:33, david daney wrote:


In message <1077159735.17315.136.camel@dzur.sfbay.redhat.com>, Eric Christopher


>writes:
>>
>>> *looks* ... no, on reflection, as long as we have to keep this
>>> bletcherous feature around, we might as well make sure it works.
>>> Go ahead and commit your original patch.
>>
>>Other than all the pch regressions. I'd prefer he figure those out
>>before committing. :)


Is it possible that David is working on a system with exec-shield and
memory layout randomization? In the past when I've seen PCH stuff
randomly pass/fail it's always been solved by turning off the exec-shield
and related bits.


It is a cross compiler running of Fedora 1. This may have exec-shield, I am not sure.




It does and very likely is causing the problems given:




Target is plain Linux 2.4.25-pre6 from linux-mips.org w/ glibc 2.2.5 running on a MIPS 4Kc core. But this is not important because the tests that fail are all run on the compiler host.



I have the following in /etc/sysctl.conf


# Turning off exec shield.
kernel.exec-shield = 0
kernel.exec-shield-randomize = 0

If you turn off exec shield and rerun the tests an they pass go ahead
and commit. Otherwise I'd appreciate you looking into it.

Thanks.

-eric


Disabling exec-shield cures the PCH failures.

There were no new regressions.

Committed on both 3.4.0 and Mainline.

David Daney.


Index Nav: [Date Index] [Subject Index] [Author Index] [Thread Index]
Message Nav: [Date Prev] [Date Next] [Thread Prev] [Thread Next]