15/06/01 23:22:15.05 SHjJiEoy0
lockf が多いのが気になったんでバックトレースを取ってみた．
(gdb) bt
#0 0x0000000801e6447a in flock () from /lib/libc.so.7
#1 0x000000080177dcf5 in proc_mutex_flock_acquire (mutex=0x8025230a0)
at locks/unix/proc_mutex.c:697
#2 0x0000000000497dcc in child_main (child_num_arg=<value optimized out>)
at prefork.c:205
#3 0x00000000004981a4 in make_child (s=0x80242d6f0, slot=436) at prefork.c:768
#4 0x0000000000498a34 in ap_mpm_run (_pconf=<value optimized out>,
plog=<value optimized out>, s=<value optimized out>) at prefork.c:903
#5 0x0000000000430e4e in main (argc=4, argv=0x7fffffffdd30) at main.c:753