Release/2.18

Contents

  1. Planning
  2. Current Status
  3. ABI Compatibility Status
  4. Known Issues
    1. Testsuite Failures
    2. Build Failures
    3. Packaging Changes

1. Planning

What things do we want to accomplish this release?

2. Current Status

WORK IN PROGRESS

The following material is a work in progress and should not be considered complete or ready for public use.

The release branch of glibc-2.18 is maintained by David Miller.

The 2.18 release branch is release/2.18/master.

Machine status:

The ref structure of this branch is:

These people are interested in contents and further revisions tagged on the branch:

The general policies for release branches apply to this branch. Do you think a certain bugfix should be included in this branch?

  1. Is the fix committed in master? It has to be, unless it's not applicable to master (e.g. code has been rewritten meantime).
  2. Do you have commit permissions? If so, go ahead if you think it's reasonably safe. break;
  3. Can you handle Git yourself? Then you can clone the glibc repository, cherry-pick the appropriate fixes, push your branch out and send a pull request at libc-alpha. break;
  4. Add the glibc_2.17 keyword to the appropriate bug report.
  5. If there is no appropriate bug report, send a request for the fix to be included to libc-alpha.

A revision release is tagged either when some critical bug-fix appears, or after some period of real-world testing, usually mainly in some SUSE distribution branch (but other distributions are welcome to run latest release/2.17/master as well, more so if they tell me about it!).

3. ABI Compatibility Status

ABI checker result (relative to 2.17):

CPU \ Kernel

GNU/Linux

x86

OK (2013/05/21)

x86_64

OK (2013/05/21)

arm

The report lists 4 changed constants: E_MIPS_ARCH_32, E_MIPS_ARCH_64, EF_MIPS_ARCH_32 and EF_MIPS_ARCH_64 (elf.h). This change is safe. See related discussion on the mailing list from 10 Jan 2013.

There are also 3 removed constants: EPOLL_NONBLOCK (epoll.h), GLIBC_HAVE_LONG_LONG and USE_ANSI (features.h). This is safe change too. See related discussions on the mailing list: 1, 2 and 3.

4. Known Issues

4.1. Testsuite Failures

4.1.1. Architecture-independent

4.1.2. s390x

Build system: RHEL6.4 on Linux 2.6.32-358.el6.s390x, gcc version 4.4.7 20120313 (Red Hat 4.4.7-3) (GCC), GNU assembler version 2.23.52 (s390x-ibm-linux-gnu) using BFD version (GNU Binutils) 2.23.52.20130425 

make[2]: *** [/root/build/glibc/math/test-float.out] Error 1
make[2]: *** [/root/build/glibc/math/test-double.out] Error 1
make[2]: *** [/root/build/glibc/math/test-ldouble.out] Error 1
make[2]: *** [/root/build/glibc/math/test-ildoubl.out] Error 1
make[2]: *** [/root/build/glibc/math/test-ifloat.out] Error 1
make[2]: *** [/root/build/glibc/math/test-idouble.out] Error 1
make[1]: *** [math/tests] Error 2
make[2]: *** [/root/build/glibc/wcsmbs/wcsatcliff.out] Error 1
make[1]: *** [wcsmbs/tests] Error 2
make[2]: [/root/build/glibc/posix/annexc.out] Error 1 (ignored)
make[2]: [/root/build/glibc/conform/run-conformtest.out] Error 1 (ignored)
make[2]: *** [/root/build/glibc/elf/tst-unique3lib.so] Error 1
make[2]: *** [/root/build/glibc/elf/tst-unique3lib2.so] Error 1
make[2]: *** [/root/build/glibc/elf/tst-unique4lib.so] Error 1
make[1]: *** [elf/tests] Error 2
make: *** [check] Error 2

4.1.3. PowerPC (hard-float)

Build System: RHEL 6.4 on Linux 2.6.32-279.2.1.el6.ppc64, gcc version 4.7.3 20130409, GNU assembler version 2.23.52 (powerpc64-linux) using BFD version (GNU Binutils) 2.23.52.20130429. The -mcpu=power7 flag was used. 

make[2]: *** [/home/azanella/glibc/build/glibc32_power7/math/test-ildoubl.out] Error 1
make[2]: *** [/home/azanella/glibc/build/glibc32_power7/math/test-ldouble.out] Error 1
make[1]: *** [math/tests] Error 2
make[2]: *** [/home/azanella/glibc/build/glibc32_power7/stdlib/tst-setcontext.out] Error 1
make[2]: *** [/home/azanella/glibc/build/glibc32_power7/stdlib/tst-makecontext3.out] Error 1
make[2]: *** [/home/azanella/glibc/build/glibc32_power7/stdlib/tst-setcontext-fpscr.out] Error 5
make[1]: *** [stdlib/tests] Error 2
make[2]: [/home/azanella/glibc/build/glibc32_power7/posix/annexc.out] Error 1 (ignored)
make[2]: *** [/home/azanella/glibc/build/glibc32_power7/rt/tst-cpuclock2.out] Error 1
make[1]: *** [rt/tests] Error 2
make[2]: [/home/azanella/glibc/build/glibc32_power7/conform/run-conformtest.out] Error 1 (ignored)
make[2]: *** [/home/azanella/glibc/build/glibc32_power7/debug/tst-backtrace5.out] Error 1
make[1]: *** [debug/tests] Error 2
make[1]: *** [elf/tests] Error 2

exceptions.

4.1.4. PowerPC64

Build System: RHEL 6.4 on Linux 2.6.32-279.2.1.el6.ppc64, gcc version 4.7.3 20130409, GNU assembler version 2.23.52 (powerpc64-linux) using BFD version (GNU Binutils) 2.23.52.20130429. The -mcpu=power7 flag was used. 

make[2]: *** [/home/azanella/glibc/build/glibc64_power7/math/test-ildoubl.out] Error 1
make[2]: *** [/home/azanella/glibc/build/glibc64_power7/math/test-ldouble.out] Error 1
make[1]: *** [math/tests] Error 2
make[2]: [/home/azanella/glibc/build/glibc64_power7/posix/annexc.out] Error 1 (ignored)
make[2]: *** [/home/azanella/glibc/build/glibc64_power7/rt/tst-cpuclock2.out] Error 1
make[1]: *** [rt/tests] Error 2
make[2]: [/home/azanella/glibc/build/glibc64_power7/conform/run-conformtest.out] Error 1 (ignored)
make[2]: *** [/home/azanella/glibc/build/glibc64_power7/debug/tst-backtrace5.out] Error 1
make[1]: *** [debug/tests] Error 2
make[1]: *** [elf/tests] Error 2

* The IBM long double tests shows 155 errors and while some are just ULPs update, some recent fixes for cacos, cacosh, casin, casinh, catan, catanh, tgamma are triggering inacuracies and underflow exceptions.

4.2. Build Failures

Describe build failures here and how to fix them:

4.3. Packaging Changes

Describe packaging changes and how to fix them:

None: Release/2.18 (last edited 2013-05-22 10:14:08 by AndreyPonomarenko)