Re: [pthread] Intermittent crashes in __errno_location() on Red Hat Linux 7.1

[Wan-Teh Chang]

Ulrich Drepper wrote:
>
> Try upgrading the kernel to 2.4.8pre3.  This is a test version and
> there is no RPM for this.  You will have to know what you are doing.
> The 2.4.8 test kernels fix a kernel bug which might be responsible for
> what you see.

I am afraid that none of us knows how to do this.  Is there another
way to verify that this is the kernel bug fixed in the 2.4.8pre3
kernel?

Is there a description of that kernel bug?  Does it have a workaround?

What can we do to help you investigate this bug?  Our code can be
downloaded as a gzipped tar file from
ftp://ftp.mozilla.org/pub/security/nss/releases/NSS_3_3_RTM/src/nss-3.3.tar.gz.

To build it, unpack the tar file and do:
    % cd mozilla/security/nss
    % make nss_build_all

To run the test, follow these steps:
    % cd mozilla/security/nss/tests
    % ./all.sh

The test results will be in mozilla/tests_results/security/<host>.<n>,
where <host> is the host name and <n> is 1, 2, ... indicating the n-th
run of ./all.sh.  There are two files in the <host>.<n> directory that
you need to look at: results.html and output.log.  If any of the tests
crashes, the core file will be found under a subdirectory in <host>.<n>.
You may need to run ./all.sh repeatedly to cause a segmentation fault
because the crash is intermittent.

The executables of the tests are in
mozilla/dist/Linux2.4_x86_glibc_PTH_DBG.OBJ/bin.

Wan-Teh