[Gc] Hang/SIGSEGV Problems on Solaris

jim marshall jim.marshall at wbemsolutions.com
Mon Nov 28 13:27:10 PST 2005


Can anyone suggest anything? I'm at a loss as to how to figure out what 
the problem is as I can not debug with GDB (see bottom part of message).

Thank you
Jim Marshall

jim marshall wrote:

> Hello,
> I am porting an application from Linux (Red Hat 9.0) to Solaris 2.9. 
> The program runs fine on Linux (and Windows), it also builds fine on 
> Solaris. But when I run it on Solaris it seems to get "stuck" in the 
> GC. If I run the program and attach GDB to it this is the stack trace 
> I get (NOTE: there is only one thread):
>
> Loaded symbols for /usr/lib/libnsl.so.1
> Reading symbols from /usr/lib/libmp.so.2...done.
> Loaded symbols for /usr/lib/libmp.so.2
> Reading symbols from 
> /usr/platform/SUNW,Ultra-30/lib/libc_psr.so.1...done.
> Loaded symbols for /usr/platform/SUNW,Ultra-30/lib/libc_psr.so.1
> Reading symbols from /usr/lib/libthread.so.1...done.
> warning: sol_thread_new_objfile: td_ta_new: Debugger service failed
> Loaded symbols for /usr/lib/libthread.so.1
> Retry #1:
> Retry #2:
> Retry #3:
> Retry #4:
> [New LWP 1]
> Symbols already loaded for /usr/lib/libc.so.1
> Symbols already loaded for /files/wbem/wsi/cserver/cserver/lib/libgc.so.1
> Symbols already loaded for /usr/lib/libdl.so.1
> Symbols already loaded for 
> /files/wbem/wsi/output/common/lib/debug/libwsilib.so
> Symbols already loaded for 
> /files/wbem/wsi/cserver/cserver/lib/libcimom.so
> Symbols already loaded for 
> /files/wbem/wsi/cserver/cserver/lib/libcwbemapi.so
> Symbols already loaded for 
> /files/wbem/wsi/cserver/cserver/lib/libinireader.so
> Symbols already loaded for 
> /files/wbem/wsi/cserver/cserver/lib/libutils.so
> Symbols already loaded for 
> /files/wbem/wsi/cserver/cserver/lib/libWSIaf.so
> Symbols already loaded for 
> /files/wbem/wsi/cserver/cserver/lib/libWSIsf.so
> Symbols already loaded for /usr/lib/libpthread.so.1
> Symbols already loaded for /usr/local/lib/libgcc_s.so.1
> Symbols already loaded for /usr/lib/libsocket.so.1
> Symbols already loaded for /usr/lib/libnsl.so.1
> Symbols already loaded for /usr/lib/libmp.so.2
> Symbols already loaded for /usr/platform/SUNW,Ultra-30/lib/libc_psr.so.1
> Symbols already loaded for /usr/lib/libthread.so.1
> 0xff31ca10 in syscall () from /usr/lib/libc.so.1
> (gdb) bt
> #0  0xff31ca10 in syscall () from /usr/lib/libc.so.1
> #1  0xff36964c in preempt_off () at solaris_threads.c:101
> #2  0xff36a36c in GC_stop_world () at solaris_threads.c:403
>
> If I run the program directly in gdb I get a sigsegv:
> (gdb) r
> Starting program: /files/wbem/wsi/cserver/cserver/bin/wsicimom 
> ./wsicimom.ini
> [New LWP 1]
> [New LWP 2]
>
> Program received signal SIGSEGV, Segmentation fault.
> 0xff3671d8 in GC_find_limit (p=0xffbff594 "", up=1) at os_dep.c:808
> 808                     GC_noop1((word)(*result));
> (gdb) bt
> #0  0xff3671d8 in GC_find_limit (p=0xffbff594 "", up=1) at os_dep.c:808
> #1  0xff36724c in GC_get_stack_base () at os_dep.c:1043
> #2  0xff365f34 in GC_init_inner () at misc.c:676
> (gdb) thread 2
> [Switching to thread 2 (LWP    2        )]0xfef65b08 in _thr_setup ()
>   from /usr/lib/libthread.so.1
> (gdb) bt
> #0  0xfef65b08 in _thr_setup () from /usr/lib/libthread.so.1
>
>
> About my program and system
> We are on a Sparc Ultra-30
> Running Solaris 2.9 (uname -a = SunOS wbem-sparc 5.9 Generic_112233-01 
> sun4u sparc SUNW,Ultra-30)
> I do not believe we have any patches installed.
> Program does use Posix threads
> using GC 6.6 built in release, 'make check' succeeds saying "all 1 
> tests passed"
> GC was built with:
> ./configure --prefix=~/gcrel --exec-prefix=~/gcrel 
> --enable-gc-assertions --enable-full-debug --enable-static=no 
> --enable-threads=posix
>
> Any thoughts or suggestions on what might be happening?
>
> Thank you
> Jim Marshall
>
>
>
>
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>
>
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