[Home]

Summary:ASTERISK-13932: I have 100% CPU usage with a few calls
Reporter:Private Name (falves11)Labels:
Date Opened:2009-04-09 08:51:40Date Closed:2009-04-09 17:50:06
Priority:BlockerRegression?No
Status:Closed/CompleteComponents:Applications/General
Versions:Frequency of
Occurrence
Related
Issues:
Environment:Attachments:( 0) asterisk-bt-1602.txt
Description:I experence 100% usage with only a few open calls. I did "ps axum -C asterisk" to find the thread with most CPU and then gdb "/usr/sbin/asterisk pid". The results are below. For some reason it happens in all my machines, regardless of version. My machines are Xen virtual machines.

****** ADDITIONAL INFORMATION ******

gdb) bt
#0  0x00002acfeb296436 in poll () from /lib64/libc.so.6
#1  0x000000000042be9b in monitor_sig_flags (unused=0x0) at asterisk.c:2679
#2  0x000000000042db72 in main (argc=3, argv=0x7fffc23c7b48) at asterisk.c:3238
(gdb) bt full
#0  0x00002acfeb296436 in poll () from /lib64/libc.so.6
No symbol table info available.
#1  0x000000000042be9b in monitor_sig_flags (unused=0x0) at asterisk.c:2679
       p = {fd = 21, events = 1, revents = 0}
       a = 0
#2  0x000000000042db72 in main (argc=3, argv=0x7fffc23c7b48) at asterisk.c:3238
       c = -1
       filename = "/root/.asterisk_history", '\0' <repeats 56 times>
       hostname = "kosher", '\0' <repeats 57 times>
       tmp = "H{<\177\000\000PJu\000\000\000\000\000`~\237\025\000\000\000\000PJu\000\000\000\000\000@y<\177\000\000PB\000\000\000\000\000h{<\177\000\000H{<\177\000\000\003\000\000\000\000\000\000\000\t\000\000\000\000\000\000"
       xarg = 0x0
       x = 3
       f = (FILE *) 0x159fb4f0
       sigs = {__val = {134238211, 0 <repeats 15 times>}}
       num = 0
       isroot = 1
       buf = 0x159f98b0 "p\230\237\025"
       runuser = 0x775160 "root"
       rungroup = 0x776160 "root"
       __PRETTY_FUNCTION__ = "main"
       __FUNCTION__ = "main"
(gdb)
Comments:By: Private Name (falves11) 2009-04-09 09:42:47

In my latest capture I did the same trick and used GDB to see what the thread with the highest CPU usage was doing. The version is  SVN-branch-1.6.2-r187303
By: Mark Michelson (mmichelson) 2009-04-09 17:50:05

We're tracking this in issue 14723 now.