From: arava.kumar@flextronicssoftware.com
Date: Thu Aug 18 2005 - 00:39:40 EDT
Hi all,
We are running a Multithreaded application on solaris platform.
The application suddenly hanged. The output of the pstack shows that it got
stuck in write system call (from printf)
Please let us know the possible reason for the stuck.
The output of the pstack is given below (the stuck is in thread# 4)
----------------- lwp# 1 / thread# 1 --------------------
ff21d2ec poll (ff9bb990, d, ffffffff)
ff1cd270 select (1a, 0, 0, ff9bb9f8, ffbef048, ff9bb990) + 348
ff12b134 select (ffddc998, ffbef1d4, 0, 10eebb0, 0, 0) + 34
0003d420 _start (0, 0, 0, 0, 0, 0) + 5c
----------------- lwp# 2 / thread# 2 --------------------
ff21eab0 signotifywait ()
ff11ed54 _dynamiclwps (ff13e000, 0, 0, ff3b6024, ff3e80c8, 1901) + 1c
ff122030 thr_yield (0, 0, 0, 0, 0, 0) + 8c
----------------- lwp# 3 / thread# 4 --------------------
ff21f73c write (1, ff243154, 17)
ff211808 _xflsbuf (ff243154, 17, 115ad28, a, ff243155, a) + 8c
ff2072e0 _doprnt (0, fee0b683, 0, 10f8fd9, fee0b682, 429a28) + 2b4c
ff207e44 printf (429a10, 115ad18, ff243a4c, ff23fc70, 0, 10f8fd9) + f4
000fe918 GkCliFn_getMenuOption (d, 46eec4, 46ec00, ff23fc70, 0, 10f8fd9) +
324
000f7a40 GkCliFn_readStatistics (f6b2c, f6da0, f6c00, ff23fc70, 0, 0) + 1c
000f6b2c GkCli_main (0, ff0f5d10, 1, ff14ad8c, 0, 2) + 108
ff12b728 _thread_start (0, 0, 0, 0, 0, 0) + 40
----------------- lwp# 4 / thread# 5 --------------------
ff21d2ec poll (fed09b10, 0, 927c0)
ff1cd270 select (0, 0, 0, fed09b10, ff23f1b4, fed09b10) + 348
ff12b134 select (0, ff0e5d10, 1, ff14ad8c, 0, 2) + 34
ff12b728 _thread_start (0, 0, 0, 0, 0, 0) + 40
----------------- lwp# 5 --------------------------------
ff21c654 door (0, 0, 0, 0, ff0d5d10, 4)
ff126ba4 _sc_door_func (1a, ff13f688, ff13f6a0, 3, ff13e000, 1) + 54
ff11a740 _lwp_start (ff0d5d70, 0, 6000, ff0e5b74, 0, 0) + 18
ff122030 thr_yield (0, 0, 0, 0, 0, 0) + 8c
----------------- lwp# 6 --------------------------------
ff129770 lwp_cond_wait (ff145548, ff145558, ff13edb0)
ff1190ac _age (3e, ff13ed9c, ff13e000, 3, ff13e000, 1) + 74
ff11a740 _lwp_start (ff0c3d70, 0, 4000, ff00fc2c, 0, 0) + 18
ff122030 thr_yield (0, 0, 0, 0, 0, 0) + 8c
-------------------------- thread# 3 --------------------
ff11ddbc _reap_wait (ff1429e0, 20520, 0, ff13e000, 0, 0) + 38
ff11db14 _reaper (ff13ee30, ff144740, ff1429e0, ff13ee08, 1, fe400000) +
38
ff12b728 _thread_start (0, 0, 0, 0, 0, 0) + 40
Thank you,
Regards,
A.Uday Kumar.
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