[gcc 4.3.0] SIGSEGV in 20.auto.ptr with optimization

• Key: STDCXX-944
• Type: Bug
• Status: Open
• Priority: Major
• Assignee: Unassigned
• Reporter: Martin Sebor
• Component/s: Tests
• Affects Version/s: 4.2.1
• Fix Version/s: 4.2.2

Description

When compiled with gcc 4.3.0 (but not earlier versions) with -O2 on Linux/x86_64 the 20.auto.ptr.cpp test barfs at runtime:

$ gdb ./20.auto.ptr
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This GDB was configured as "x86_64-suse-linux"...Using host libthread_db library "/lib64/libthread_db.so.1".

(gdb) r -q
Starting program: /build/sebor/stdcxx-4.2.x-gcc-4.3.0-15D/tests/20.auto.ptr -q
[Thread debugging using libthread_db enabled]
[New Thread 47873585794736 (LWP 3611)]
# ASSERTION (S7) (4 lines):
# TEXT: auto_ptr<>::auto_ptr(std::auto_ptr_ref)
# CLAUSE: lib.auto.ptr
# LINE: 377

*** glibc detected *** /build/sebor/stdcxx-4.2.x-gcc-4.3.0-15D/tests/20.auto.ptr: munmap_chunk(): invalid pointer: 0x00007fff3b2a9e90 ***
======= Backtrace: =========
/lib64/libc.so.6[0x2b8a6ff6e37e]
/build/sebor/stdcxx-4.2.x-gcc-4.3.0-15D/tests/20.auto.ptr[0x402390]
/build/sebor/stdcxx-4.2.x-gcc-4.3.0-15D/tests/20.auto.ptr[0x40567f]
/build/sebor/stdcxx-4.2.x-gcc-4.3.0-15D/tests/20.auto.ptr[0x405b28]
/build/sebor/stdcxx-4.2.x-gcc-4.3.0-15D/tests/20.auto.ptr(_ZNSt8ios_base4InitD1Ev+0x250)[0x402088]
/lib64/libc.so.6(__libc_start_main+0xf4)[0x2b8a6ff20154]
/build/sebor/stdcxx-4.2.x-gcc-4.3.0-15D/tests/20.auto.ptr(_ZNSt8ios_base4InitD1Ev+0x141)[0x401f79]
======= Memory map: ========
00400000-00426000 r-xp 00000000 fd:00 723719                             /build/sebor/stdcxx-4.2.x-gcc-4.3.0-15D/tests/20.auto.ptr
00526000-00527000 rw-p 00026000 fd:00 723719                             /build/sebor/stdcxx-4.2.x-gcc-4.3.0-15D/tests/20.auto.ptr
00527000-0054a000 rw-p 00527000 00:00 0                                  [heap]
2b8a6f7fe000-2b8a6f819000 r-xp 00000000 fd:03 98312                      /lib64/ld-2.4.so
2b8a6f819000-2b8a6f81b000 rw-p 2b8a6f819000 00:00 0 
2b8a6f919000-2b8a6f91b000 rw-p 0001b000 fd:03 98312                      /lib64/ld-2.4.so
2b8a6f91b000-2b8a6fa31000 r-xp 00000000 fd:00 723482                     /build/sebor/stdcxx-4.2.x-gcc-4.3.0-15D/lib/libstd15D.so.4.2.2
2b8a6fa31000-2b8a6fb30000 ---p 00116000 fd:00 723482                     /build/sebor/stdcxx-4.2.x-gcc-4.3.0-15D/lib/libstd15D.so.4.2.2
2b8a6fb30000-2b8a6fb3a000 rw-p 00115000 fd:00 723482                     /build/sebor/stdcxx-4.2.x-gcc-4.3.0-15D/lib/libstd15D.so.4.2.2
2b8a6fb3a000-2b8a6fb52000 rw-p 2b8a6fb3a000 00:00 0 
2b8a6fb81000-2b8a6fbd5000 r-xp 00000000 fd:03 98327                      /lib64/libm-2.4.so
2b8a6fbd5000-2b8a6fcd4000 ---p 00054000 fd:03 98327                      /lib64/libm-2.4.so
2b8a6fcd4000-2b8a6fcd6000 rw-p 00053000 fd:03 98327                      /lib64/libm-2.4.so
2b8a6fcd6000-2b8a6fcec000 r-xp 00000000 00:19 1851300                    /amd/devco/contrib/linux/gcc-4.3.0/lib64/libgcc_s.so.1
2b8a6fcec000-2b8a6fdeb000 ---p 00016000 00:19 1851300                    /amd/devco/contrib/linux/gcc-4.3.0/lib64/libgcc_s.so.1
2b8a6fdeb000-2b8a6fdec000 rw-p 00015000 00:19 1851300                    /amd/devco/contrib/linux/gcc-4.3.0/lib64/libgcc_s.so.1
2b8a6fdec000-2b8a6fded000 rw-p 2b8a6fdec000 00:00 0 
2b8a6fded000-2b8a6fdfe000 r-xp 00000000 fd:03 98345                      /lib64/libpthread-2.4.so
2b8a6fdfe000-2b8a6fefd000 ---p 00011000 fd:03 98345                      /lib64/libpthread-2.4.so
2b8a6fefd000-2b8a6feff000 rw-p 00010000 fd:03 98345                      /lib64/libpthread-2.4.so
2b8a6feff000-2b8a6ff03000 rw-p 2b8a6feff000 00:00 0 
2b8a6ff03000-2b8a70029000 r-xp 00000000 fd:03 98319                      /lib64/libc-2.4.so
2b8a70029000-2b8a70129000 ---p 00126000 fd:03 98319                      /lib64/libc-2.4.so
2b8a70129000-2b8a7012c000 r--p 00126000 fd:03 98319                      /lib64/libc-2.4.so
2b8a7012c000-2b8a7012e000 rw-p 00129000 fd:03 98319                      /lib64/libc-2.4.so
2b8a7012e000-2b8a70136000 rw-p 2b8a7012e000 00:00 0 
7fff3b296000-7fff3b2aa000 rwxp 7fff3b296000 00:00 0                      [stack]
7fff3b2aa000-7fff3b2ac000 rw-p 7fff3b2aa000 00:00 0 
ffffffffff600000-ffffffffffe00000 ---p 00000000 00:00 0                  [vdso]

Program received signal SIGABRT, Aborted.
[Switching to Thread 47873585794736 (LWP 3611)]
0x00002b8a6ff32aa5 in raise () from /lib64/libc.so.6
(gdb) where
#0  0x00002b8a6ff32aa5 in raise () from /lib64/libc.so.6
#1  0x00002b8a6ff33e60 in abort () from /lib64/libc.so.6
#2  0x00002b8a6ff6936b in __libc_message () from /lib64/libc.so.6
#3  0x00002b8a6ff6e37e in malloc_printerr () from /lib64/libc.so.6
#4  0x0000000000402390 in run_test () at /amd/devco/sebor/stdcxx-4.2.x/include/rw/_autoptr.h:220
#5  0x000000000040567f in rw_vtest (argc=2, argv=0x7fff3b2a9e88, file_name=0x41b720 "/amd/devco/sebor/stdcxx-4.2.x/tests/utilities/20.auto.ptr.cpp", 
    clause=0x41b8a4 "lib.auto.ptr", comment=0x0, fun=0x402090 <run_test>, optstr=0x41b8b1 "|-no-conversions#", va=0x7fff3b2a9cb0)
    at /amd/devco/sebor/stdcxx-4.2.x/tests/src/driver.cpp:1174
#6  0x0000000000405b28 in rw_test (argc=2, argv=0x7fff3b2a9e88, fname=0x41b720 "/amd/devco/sebor/stdcxx-4.2.x/tests/utilities/20.auto.ptr.cpp", 
    clause=0x41b8a4 "lib.auto.ptr", comment=0x0, testfun=0x402090 <run_test>, optstr=0x41b8b1 "|-no-conversions#")
    at /amd/devco/sebor/stdcxx-4.2.x/tests/src/driver.cpp:1272
#7  0x0000000000402088 in main (argc=3611, argv=0xe1b) at /amd/devco/sebor/stdcxx-4.2.x/tests/utilities/20.auto.ptr.cpp:481
(gdb)