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[Bug libc/15738] New: Multiple segmentation faults in test suite on Alpha


http://sourceware.org/bugzilla/show_bug.cgi?id=15738

            Bug ID: 15738
           Summary: Multiple segmentation faults in test suite on Alpha
           Product: glibc
           Version: 2.17
            Status: NEW
          Severity: normal
          Priority: P2
         Component: libc
          Assignee: unassigned at sourceware dot org
          Reporter: mcree at orcon dot net.nz
                CC: drepper.fsp at gmail dot com

On Alpha the following tests (at least) fail in the test suite with
segmentation faults.

badsalttest
nptl/tst-eintr1
nptl/tst-cancel24-static
nptl/tst-cond8-static
nptl/tst-mutex8-static
nptl/tst-mutexpi8-static
nptl/tst-sem11-static
nptl/tst-sem12-static
elf/tst-tls1
elf/tst-tls2
elf/tst-tls5

Tested with both gcc-4.6 (Debian 4.6.4-2+alpha) and gcc-4.7 (Debian
4.7.3-4+alpha), and with binutils 2.23.52.20130620 and linux headers (3.9.8-1)
on an Alpha ES45 running Debian unstable from Debian-Ports.

Running, for example, elf/tst-tls1 manually and with --direct results in the
following output:

set bar to 1 (LE)
get sum of foo and bar (IE) = 1
get sum of foo and bar (LD)Segmentation fault

and a core dump that appears to end in __get_tls_addr():

Core was generated by `/home/mjc/toolchain/glibc-build/elf/ld-linux.so.2
--library-path /home/mjc/tool'.
Program terminated with signal 11, Segmentation fault.
#0  __tls_get_addr (ti=0x120019704) at dl-tls.c:775
775      void *p = dtv[GET_ADDR_MODULE].pointer.val;

but I could not get a full backtrace (maybe because I am not sure how to tell
gdb where to load dynamic libraries from).

The test suite failures extend back to version 2.16 of the libary and probably
earlier (I did not test before the merge of ports with mainline).

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