On Fri, Nov 28, 2003 at 12:23:53AM -0800, Stas Bekman wrote:
> Jay R. Ashworth wrote:
> > On Thu, Nov 27, 2003 at 05:12:10PM -0800, Stas Bekman wrote:
> >
> >>httpd -DONE_PROCESS -DNO_DETACH
> >
> >
> > Oh, *ick*; it's a Heisenbug.
> >
> > This time it didn't dump core -- it did what it was doing originally:
>
> In which case you can run the server normally and still get the core
> file, but in addition to the ulimit command you need to make the
> directory where httpd resides writable by the user the server is
> running under. The whole path to that directory needs to +x to that
> user.
Apoligies; I wasn't clear: it didn't *segfault* this time; it went back
to giving the mod_perl error (well, I think that's what it is). It
segfaults if it's daemonized; it doesn't if it's standalone.
> The easiest way for you to test whether you can get the core dumped is this.
> let's say your httpd resides in /appl/Apache/bin/httpd, so we do:
>
> % su
> % cd /appl/Apache/bin/
> % perl -MPOSIX -e 'my($uid, $gid) = (getpwnam(shift))[2..3]; \
> POSIX::setuid($uid); POSIX::setgid($gid); \
> print -r q{$dir} && -w _ && -x _ ? q{OK} : q{NOK};' \
> nobody
>
> If you get NOK that means that the core file won't be dumped. If OK, then
> it'll work. In fact you can just try to dump the core as that user in a
> similar way:
>
> % su
> % cd /appl/Apache/bin/
> % perl -MPOSIX -e 'my($uid, $gid) = (getpwnam(shift))[2..3]; \
> POSIX::setuid($uid); POSIX::setgid($gid); \
> CORE::dump;' \
> nobody
>
> If you get:
>
> Abort
>
> That means that the core wasn't dumped. If you get:
>
> Abort (core dumped)
>
> then you will find a "nice" core file in /appl/Apache/bin/
I'll give this a try; thanks.
-- j
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Jay R. Ashworth [EMAIL PROTECTED]
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