[NetBSD 3.0] SIGSEGV in tests/self/printf.cpp

• Key: STDCXX-156
• Type: Bug
• Status: Open
• Priority: Major
• Assignee: Unassigned
• Reporter: Martin Sebor
• Component/s: Tests
• Affects Version/s: 4.1.3

Description

From http://mail-archives.apache.org/mod_mbox/incubator-stdcxx-dev/200602.mbox/[e-mail]%3e:

While running the different executables in the stdcxx test suite, I
encountered a segfault executing the printf selftest. The following is
the backtrace.

> td143.testdrive.hp.com> gdb 0.printf
> GNU gdb 5.3nb1
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> This GDB was configured as "i386--netbsdelf"...
> (gdb) run
> Starting program: /tmp/ablackrw/stdcxx-11d/tests/0.printf
> "%": percent sign
> "%c": character formatting
> extension: "%{c}": escaped character
> extension: "%{#c}": quoted escaped character
> "%lc": wide character
> extension: "%{lc}": escaped wide character
> extension: "%{#lc}": quoted escaped wide character
> "%s": character string
>
> Program received signal SIGSEGV, Segmentation fault.
> 0xbdab6f2a in memchr () from /usr/lib/libc.so.12
> (gdb) bt
> #0 0xbdab6f2a in memchr () from /usr/lib/libc.so.12
> #1 0x08079164 in __ps_strings ()
> #2 0x0806a154 in _rw_fmtstr(FmtSpec const&, char*, unsigned, char
> const*, unsigned) (spec=@0xbfbfe7a0, pbuf=0xbfbfece4,
> pbufsize=0xbfbfece0,
> str=0x1 <Error reading address 0x1: Invalid argument>, len=4294967295)
> at /house/ablackrw/stdcxx/tests/src/printf.cpp:3051
> #3 0x080663b4 in _rw_vasnprintf_c99(FmtSpec*, unsigned, char**,
> unsigned*, char**) (pspec=0xbfbfe7a0, paramno=0, pbuf=0xbfbfece4,
> pbufsize=0xbfbfece0,
> pva=0xbfbfeca8) at /house/ablackrw/stdcxx/tests/src/printf.cpp:681
> #4 0x08066ee9 in rw_vasnprintf(char*, unsigned, char const*, char*) (
> pbuf=0xbfbfece4, pbufsize=0xbfbfece0, fmt=0x80728fc "%s",
> varg=0xbfbfecf4 "\001") at
> /house/ablackrw/stdcxx/tests/src/printf.cpp:1035
> #5 0x0806c21d in rw_sprintfa(char const*, ...) (fmt=0x80728fc "%s")
> at /house/ablackrw/stdcxx/tests/src/printf.cpp:4004
> #6 0x0804d9b0 in test_string() ()
> at /house/ablackrw/stdcxx/tests/self/0.printf.cpp:343
> #7 0x08065763 in main ()
> at /house/ablackrw/stdcxx/tests/self/0.printf.cpp:2235
> #8 0x08049516 in ___start ()