>> When you said breaking compatibility with 2.4, you meant
>> NPTL vs LinuxThreads, right?
>
> My thought as well. There are still some architectures which do not
> support NPTL, even with 2.6 kernels (hppa comes to my mind). But lack
> of NPTL support causes pain in other areas, too, so it's
As a follow-up, RHEL 3 did include the NPTL backport as per:
http://www.redhat.com/docs/manuals/enterprise/RHEL-3-Manual/release-notes/as-x86/
RHEL 2 did not, it was first introduced in RHEL 3.
RHEL AS 2.1 is still supported by Red Hat until May 31, 2009:
I'm pretty sure both RHEL 2 & 3 both use 2.4 kernels and are
still actively supported by RedHat if that sways your decision.
I know I have clients that are on RHEL3 still so I'd prefer this
change not to be made if there will be negative impact. We do
share connections across threads, but not
Many systems built on the linux 2.4 kernels contain a bug in their
thread implementation: A posix advisory lock created by thread A
could not be overridden or modified by thread B. In essence, linux
was treating different threads within the same process as if they were
different
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