Created attachment 771040 [details]
tsvd3.cpp for test case

Description of problem: gdb gets lost with some debuginfo, and becomes unusable because internal consistency checks fail and get in the way.


Version-Release number of selected component (if applicable):
GNU gdb (GDB) Fedora (7.6-30.fc19)


How reproducible: every time


Steps to Reproduce:
1. yum install lapack blas
2. debuginfo install lapack-3.4.2-2.fc19.i686
3. yum install valgrind
4. gcc -g -c gemv2.cpp
5. gcc -g -c tsvd3.cpp
6. gcc -g gemv2.o tsvd3.o  -llapack -lblas -lstdc++ -o tsvd3
7. valgrind --track-origins=yes --vgdb-error=0 --fullpath-after= ./tsvd3
8. gdb ./tsvd3
9. (gdb) target remote | /usr/lib/valgrind/../../bin/vgdb
10. (gdb) continue

Actual results:
Remote debugging using | /usr/lib/valgrind/../../bin/vgdb
relaying data between gdb and process 2065
Reading symbols from /lib/ld-linux.so.2...Reading symbols from /usr/lib/debug/lib/ld-2.17.so.debug...done.
done.
Loaded symbols for /lib/ld-linux.so.2
0x4ee42020 in _start () from /lib/ld-linux.so.2
(gdb) c
Continuing.

Program received signal SIGTRAP, Trace/breakpoint trap.
0x046acf19 in dnrm2 (n=
../../gdb/printcmd.c:487: internal-error: failed internal consistency check
A problem internal to GDB has been detected,
further debugging may prove unreliable.
Quit this debugging session? (y or n) 

Expected results: no internal inconsistency


Additional info: Also fails in the same way on x86_64.

$ gcc --version
gcc (GCC) 4.8.1 20130603 (Red Hat 4.8.1-1)

----- /var/log/yum.log
Jul 08 22:33:41 Installed: blas-3.4.2-2.fc19.i686
Jul 08 22:33:49 Installed: lapack-3.4.2-2.fc19.i686
Jul 08 22:36:21 Installed: gcc-base-debuginfo-4.8.1-1.fc19.i686
Jul 08 22:36:25 Installed: glibc-debuginfo-common-2.17-11.fc19.i686
Jul 08 22:36:37 Installed: glibc-debuginfo-2.17-11.fc19.i686
Jul 08 22:38:06 Installed: gcc-debuginfo-4.8.1-1.fc19.i686
Jul 08 22:38:19 Installed: lapack-debuginfo-3.4.2-2.fc19.i686
Jul 08 22:39:27 Installed: 1:valgrind-3.8.1-15.fc19.i686
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