apache 访问日志的调用堆栈

#0 apr_file_write (thefile=0x10c35c40, buf=0x10cb8730, nbytes=0x7fff2c876ba0) at file_io/unix/readwrite.c:217

#1 0x000000000045b583 in ap_default_log_writer (r=0x10cb5a20, handle=0x10c35c40, strs=0x10cb85e8, strl=0x10cb8658, nelts=14, len=65) at mod_log_config.c:1413

#2 0x000000000045a9fe in config_log_transaction (r=0x10cb5a20, cls=0x10bfe000, default_format=0x10c353e0) at mod_log_config.c:1017

#3 0x000000000045aa94 in multi_log_transaction (r=0x10cb5a20) at mod_log_config.c:1037

#4 0x000000000042f522 in ap_run_log_transaction (r=0x10cb5a20) at protocol.c:1673

#5 0x000000000046107e in ap_process_request (r=0x10cb5a20) at http_request.c:308

#6 0x000000000045db7d in ap_process_http_connection (c=0x10cadbd0) at http_core.c:190

#7 0x00000000004479b6 in ap_run_process_connection (c=0x10cadbd0) at connection.c:43

#8 0x0000000000447e12 in ap_process_connection (c=0x10cadbd0, csd=0x10cad9e0) at connection.c:190

#9 0x000000000047beb9 in child_main (child_num_arg=0) at prefork.c:662

#10 0x000000000047bfa5 in make_child (s=0x10bfa150, slot=0) at prefork.c:707

#11 0x000000000047c53a in ap_mpm_run (_pconf=0x10bf3138, plog=0x10c35348, s=0x10bfa150) at prefork.c:983

#12 0x0000000000424b83 in main (argc=4, argv=0x7fff2c877158) at main.c:739

先记录着，可能后面会使用到