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Bug#668891: Static TLS (thread local storage) generates SIGSEGV in libc6 (GNU C-Library)



Package: libc6
Version: 2.11.3-2
Severity: important
Tags: squeeze

The "eglibc" source (eglibc_2.11.3-2.diff.gz eglibc_2.11.3-2.dsc
eglibc_2.11.3.orig.tar.gz)  of the "libc6*.deb" packages contains a
patch which fixes a well known bug of older releases of the GNUC-Library
resulting in SIGSEGV on software which makes use of static tls. The can
be found in ".../debian/patches/any/cvs-dlopen-tls.diff".
For some reasons the patch has not been pushed onto the quilt stack. So
when building the "libc6*.deb" packages from source the patch is left
out rendering any software which make use of statis tls (e.g. qt-4.8.x)
useless (generating SIGSEGV).
When rebuilding the "libc6*.deb" packages with the mentioned patch
included all seems to be o.k. so far. Now I'm wondering if the patch has
been omitted by intention or if the omission is simply a bug, and I'm
wondering if the patch could be included officially?



-- System Information:
Debian Release: 6.0.4
  APT prefers stable-updates
  APT policy: (500, 'stable-updates'), (500, 'stable')
Architecture: i386 (i686)

Kernel: Linux 2.6.32-5-686 (SMP w/2 CPU cores)
Locale: LANG=en_US.utf8, LC_CTYPE=de_DE.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash

Versions of packages libc6 depends on:
ii  libc-bin                      2.11.3-3   Embedded GNU C Library:
Binaries
ii  libgcc1                       1:4.4.5-8  GCC support library

Versions of packages libc6 recommends:
ii  libc6-i686                    2.11.3-3   Embedded GNU C Library:
Shared lib

Versions of packages libc6 suggests:
ii  debconf [debconf-2.0]         1.5.36.1   Debian configuration
management sy
ii  glibc-doc                     2.11.3-3   Embedded GNU C Library:
Documentat
ii  locales                       2.11.3-3   Embedded GNU C Library:
National L

-- debconf information:
  glibc/upgrade: true
  glibc/restart-services:
  glibc/disable-screensaver:
  glibc/restart-failed:




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