RE: [Xen-devel] NPTL/db4 problem with FC3

[Nils Toedtmann <xen-devel@xxxxxxxxxxxxxxxxxx>]

Am Dienstag, den 22.03.2005, 16:27 +1200 schrieb Peter: 
> (Me Too ++: I'm running into the same issues with a non-nptl DB4 and rpm 
> on rhel4)
> 
> And making it even more interesting:
> http://www.redhat.com/docs/manuals/enterprise/RHEL-4-Manual/release-notes/as-x86/
> 
> "Red Hat Enterprise Linux 5 will no longer include support for 
> LinuxThreads. Therefore, applications that require LinuxThreads support 
> must be updated before they will be able to work properly on a Red Hat 
> Enterprise Linux 5 system."
> 
> I would appreciate a description of what needs to be done in order for 
> xen or UML to support the use of nptl inside the guest server.  And any 
> info on progress towards trying to support it.

Me too


Am Montag, den 21.03.2005, 21:34 +0000 schrieb Ian Pratt:
> > It turned out to be a FC specific db4 problem with non-NPTL-aware
> > ARCHes:
> > 
> >   <https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=91933>
> > 
> > Unfortunatly, RedHat closed this bug as WONTFIX, but it's 
> > still present
> > with FC3 on ARCH={xen,um}. /lib/tls and /usr/lib/tls moved away, the
> > LD_ASSUME_KERNEL workaround does not help, too.
> 
> We have a trivial patch to NTPL glibc that make it "xen-friendly",
> providing glibc is built with the "-mno-tls-direct-seg-refs" option to
> gcc.
> 
> It's currently undergoing testing, and I expect we'll check it in to the
> repo later this week.

I will test that, but as long as distros do not patch their glibc, too,
we are in the same sitiuation as i am with my db4-hack: i have to
rebuild a central package which is tricky to compile. I have to do that
each time the package is updated. Apt/yum shall not update it to newly
released versions (only from my own repository, resp.), so i have to lie
about the version number or i have to rename it (db4 ==> db4-xen). Try
to replace db4-4.2.52 with db4-xen-4.2.52 on a running system ... that's
really UGLY.

Does anybody know if & how RedHat solved that problem on FC4test1 (which
is shipping with xen-unstable & cyrus-imapd)?

/nils.



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