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[Xen-devel] Re: [uml-user] NPTL/db4 problem with FC3

To: Nils Toedtmann <user-mode-linux-user@xxxxxxxxxxxxxxxxxx>
Subject: [Xen-devel] Re: [uml-user] NPTL/db4 problem with FC3
From: Peter <p.spamcatcher@xxxxxxxxxxxxxxx>
Date: Tue, 22 Mar 2005 16:27:49 +1200
Cc: UML user list <user-mode-linux-user@xxxxxxxxxxxxxxxxxxxxx>, xen-devel@xxxxxxxxxxxxxxxxxxxxx
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(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.

Regards, Peter

Nils Toedtmann wrote:
This is a cross post to <xen-devel@xxxxxxxxxxxxxxxxxxxxx> and <user-
mode-linux-user@xxxxxxxxxxxxxxxxxxxxx>


Dear lists,

Anybody successfully running cyrus-imapd in FC2/3+Xen/UML? When i tried
to run cyrus-imapd in a virtual FC3 (Xen or UML) i got lot's of

  DBERROR db4: Berkeley DB library configured to support only
               DB_PRIVATE environments
  DBERROR: dbenv->open '/var/lib/imap/db' failed: Invalid argument
  DBERROR: init() on berkeley

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.

So i followed the way of Radu Greab and rebuilt db4 using his patches
and specfile

  <https://bugzilla.redhat.com/bugzilla/attachment.cgi?id=100060>

It was tricky, but worked. As this is an ugly workaround (eg it bombs
with apt/yum updating) i look for a better solution.
Anybody?

/nils.
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