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Full Discussion: C++ application halts at popen system call
Top Forums Programming C++ application halts at popen system call Post 302323220 by Amiya Rath on Friday 5th of June 2009 08:17:16 PM
Old 06-05-2009
C++ application halts at popen system call
Hi All,
My application gets hang at the popen statement in Soalris 5.8. While debugging I found that it halts at _lwp_sema_wait. After googling I have added /usr/lib/lwp in the LD_LIBRARY_PATH and now it halts at lwp_park. Please help me what I need to do to solve this issue. The application runs fine in AIX and other solaris box.
The dbx, pstack and truss output are as below.
Dbx
====================================================================================
81 fp=popen(command,”r”);
(dbx 1) where
current thread: t@1
=>[1] _lwp_sema_wait(0xb51b8, 0x0, 0x0, 0x0, 0x0, 0x2), at 0xfeb9f8bc
[2] _park(0xb51b8, 0xff0bc000, 0x0, 0xb50f0, 0x23154, 0x0), at 0xff0996f4
[3] _swtch(0xb50f0, 0xb50f0, 0xff0bc000, 0x5, 0x1000, 0x0), at 0xff0993bc
[4] _mutex_adaptive_lock(0xff0c7864, 0x4c00, 0x1000, 0xfffeffff, 0x1, 0x4d58), at 0xff09adc8
[5] _cmutex_lock(0xfebc0608, 0xff0bc000, 0xff0bc000, 0xfeb41da0, 0xfebc0438, 0x0), at 0xff09aadc
[6] malloc(0xc, 0x27cac, 0xb4040, 0xfebc0430, 0xb4050, 0x10), at 0xfeb41da0
[7] _insert_nolock(0x0, 0x6, 0xfebbc008, 0x2711, 0x40, 0x40), at 0xfeb94394
[8] popen(0xb4040, 0x6, 0x2711, 0x5, 0xffbe8744, 0x38), at 0xfeb9423c
[9] zcxeval(0xffbe8844, 0xffbe8614, 0xffbe872c, 0xfefeec9c, 0x0, 0x2), at 0xfee503f8
[10] openfile(0xffbe89d8, 0x1, 0xffbe8ac4, 0x0, 0xb, 0x0), at 0xfedb1508
[11] ypmbacktrace(0xb, 0xfecaa358, 0x0, 0x0, 0x0, 0x0), at 0xfedb04a4
[12] error_handler(0xb, 0xffbe9020, 0xffbe8d68, 0x0, 0x0, 0x0), at 0xfecaa570
[13] __sighndlr(0xb, 0xffbe9020, 0xffbe8d68, 0xfecaa358, 0xb5198, 0xb5188), at 0xff0ab218
---- called from signal handler with signal 11 (SIGSEGV) ------
[14] _free_unlocked(), at 0xfeb42c8c
[15] free(0xc300000, 0x0, 0x0, 0xfeb91fe4, 0x36, 0x0), at 0xfeb42c3c
[16] SPIBase::~SPIBase(0xffbea79c, 0x0, 0xfebbfc78, 0xfebbfc78, 0x0, 0x0), at 0xff2d5308
[17] SPIFiles::~SPIFiles(0xffbea79c, 0x2, 0x1, 0x1, 0x7c53c, 0x40000000), at 0xff2da8ec
[18] Load_Band_Struct::~Load_Band_Struct(0xffbea79c, 0x2, 0x7d074, 0x0, 0x0, 0xffbe9f9a), at 0x362a0
[19] main_code(0x0, 0x0, 0xffbe9fde, 0x7c6b8, 0xffbed8c1, 0x7c6bc), at 0x346e8
[20] ycx_init_term(0x1, 0x0, 0x2ddd0, 0x3, 0xffbeec2c, 0x0), at 0xfeca9b58
[21] ycxonxp(0x2ddd0, 0x3, 0xffbeec2c, 0x67adc, 0x0, 0x0), at 0x36a10
[22] main(0x3, 0xffbeec2c, 0xffbeec3c, 0x7c400, 0x0, 0x0), at 0x2dd8c

Pstack output
====================================================================================
----------------- lwp# 1 / thread# 1 --------------------
feb9f8bc lwp_sema_wait (b51b8)
ff0996f4 _park (b51b8, ff0bc000, 0, b50f0, 23154, 0) + 114
ff0993bc _swtch (b50f0, b50f0, ff0bc000, 5, 1000, 0) + 424
ff09adc8 _mutex_adaptive_lock (ff0c7864, 4c00, 1000, fffeffff, 1, 4d58) + 160
ff09aadc _cmutex_lock (febc0608, ff0bc000, ff0bc000, feb41da0, febc0438, 0) + 84
feb41da0 malloc (c, 27cac, b4040, febc0430, b4050, 10) + 18
feb94394 _insert_nolock (0, 6, febbc008, 2711, 40, 40) + 3c
feb9423c popen (b4040, 6, 2711, 5, ffbe8744, 38) + 264
fee503f8 __0FHzcxevalR6HYsgstrdRC6HYsgstrd (ffbe8844, ffbe8614, ffbe872c, fefeec9c, 0, 2) + 90
fedb1508 __0FIopenfileRP6EFILEUc (ffbe89d8, 1, ffbe8ac4, 0, b, 0) + 258
fedb04a4 __0FMypmbacktracev (b, fecaa358, 0, 0, 0, 0) + 3c
fecaa570 __0FNerror_handleri (b, ffbe9020, ffbe8d68, 0, 0, 0) + 218
ff0ab218 __sighndlr (b, ffbe9020, ffbe8d68, fecaa358, b5198, b5188) + c
ff0a821c sigacthandler (b, b50f0, 0, 0, 0, ff0bc000) + 708
--- called from signal handler with signal 11 (SIGSEGV) ---
feb42c8c _free_unlocked (c300000, febbc008, c300000, febbc008, 148ea0, 0) + 40
feb42c3c free (c300000, 0, 0, feb91fe4, 36, 0) + 20
ff2d5308 __0oHSPIBasedtv (ffbea79c, 0, febbfc78, febbfc78, 0, 0) + b0
ff2da8ec __0oISPIFilesdtv (ffbea79c, 2, 1, 1, 7c53c, 40000000) + 84
000362a0 __0oQLoad_Band_Structdtv (ffbea79c, 2, 7d074, 0, 0, ffbe9f9a) + 50
000346e8 __0FJmain_codeRC6HYsgstrd (0, 0, ffbe9fde, 7c6b8, ffbed8c1, 7c6bc) + 6918
feca9b58 __0FNycx_init_termUcPFv_iPFRC6HYsgstrd_iiPPc (1, 0, 2ddd0, 3, ffbeec2c, 0) + 4d8
00036a10 __0FHycxonxpPFRC6HYsgstrd_iiPPc (2ddd0, 3, ffbeec2c, 67adc, 0, 0) + 88
0002dd8c main (3, ffbeec2c, ffbeec3c, 7c400, 0, 0) + 7c
0002dbc4 _start (0, 0, 0, 0, 0, 0) + dc
----------------- lwp# 2 / thread# 2 --------------------
feb9f20c signotifywait ()
ff09e980 _dynamiclwps (ff0bc000, ff3de0c4, ff3813f8, ff381b78, 2f, 7efefeff) + 24
ff0a1c90 thr_yield (0, 0, 0, 0, 0, 0) + 8c
----------------- lwp# 3 --------------------------------
feb9cdb0 door (0, 0, 0, 0, ff045d38, 4)
ff0a687c _sc_door_func (4, ff0bc000, ff0bd678, 3, ff0bc000, 1) + 6c
ff09a380 _lwp_start (ff045d98, 0, 6000, ffbee534, 0, 0) + 18
ff0a1c90 thr_yield (0, 0, 0, 0, 0, 0) + 8c
----------------- lwp# 4 --------------------------------
ff0a92fc lwp_cond_wait (ff0c34f0, ff0c3500, ff0bcd88)
ff098cdc _age (3e, ff0bcd74, ff0bc000, 3, ff0bc000, 1) + 74
ff09a380 _lwp_start (fe60bd98, 0, 0, 0, 0, 0) + 18
ff0a1c90 thr_yield (0, 0, 0, 0, 0, 0) + 8c
----------------- lwp# 5 / thread# 4 --------------------
feb9f8bc lwp_sema_wait (ff0c30a8)
ff0a6b74 _tdb_agent (ff0c34d0, ff0c2e48, 0, 1, 0, fe60bd98) + 50
ff0a1c90 thr_yield (0, 0, 0, 0, 0, 0) + 8c
-------------------------- thread# 3 --------------------
ff09d9e0 _reap_wait (ff0c0988, 1e8fc, 0, ff0bc000, 0, 0) + 38
ff09d738 _reaper (ff0bce08, ff0c2710, ff0c0988, ff0bcde0, 1, fe400000) + 38
ff0ab11c _thread_start (0, 0, 0, 0, 0, 0) + 40
truss -p 10000
====================================================================================
lwp_sema_wait(0x000B51B8) (sleeping...)
signotifywait() (sleeping...)
door_return(0x00000000, 0, 0x00000000, 0) (sleeping...)
lwp_cond_wait(0xFF0C34F0, 0xFF0C3500, 0xFF0BCD88) (sleeping...)
lwp_sema_wait(0xFF0C30A8) (sleeping...)

Thanks in advance for help and suggestions.
Reagrds
Amy
 

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