patch for glibc 2.3.6 system() hang?
Fri Oct 5 18:44:00 GMT 2007
Hi. We're encountering a problem with system() (the C runtime function
to execute an external program via a shell) hanging. We're using glibc
2.3.6 and gcc 3.4.6, and seeing this on arm, mips, and i686.
Does anyone have a patch for this problem? I've located a post by
Ulrich Drepper implying that he applied a patch (in an unspecified
location in the glibc, to an unspecified version/branch of glibc) that
might fix this, circa 25 February 2007, and I'm continuing to search for
that change. However, I haven't found it yet, and I wonder if anyone
else has already solved this.
It's most perplexing when this:
hangs in a threaded program. (NPTL or linuxthreads - the i686 platform
is NPTL, and the others (of necessity for our gcc/glibc versions, I
think) are using linuxthreads.)
Don't hassle me about why we're doing the above instead of just calling
the sync() system call - I didn't write this code, and even if we fix it
there are much more appropriate uses elsewhere. It's just that the
failure of this one is so clearly egregious... (I once found a place in
the code where someone used 'system("/bin/rm -f ...")' instead of
calling unlink(). Sigh.)
For unsubscribe information see http://sourceware.org/lists.html#faq
More information about the crossgcc