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From bugzi...@apache.org
Subject DO NOT REPLY [Bug 44870] New: process spinning on 100% cpu
Date Thu, 24 Apr 2008 18:28:36 GMT
https://issues.apache.org/bugzilla/show_bug.cgi?id=44870

           Summary: process spinning on 100% cpu
           Product: Apache httpd-2
           Version: 2.2.8
          Platform: PC
        OS/Version: Linux
            Status: NEW
          Severity: normal
          Priority: P2
         Component: prefork
        AssignedTo: bugs@httpd.apache.org
        ReportedBy: richard_hubbe11@yahoo.com


I tried attaching strace but got nothing back so I attached gdb.
Using prefork mpm.  Don't know what else is significant here.
Please advise if more information is wanted.

Attaching to process 5241
Reading symbols from /var/proxy-cache/bin/httpd...done.
Using host libthread_db library "/lib/tls/libthread_db.so.1".
Reading symbols from /lib/tls/libm.so.6...done.
Loaded symbols for /lib/tls/libm.so.6
Reading symbols from /var/proxy-cache/lib/libaprutil-1.so.0...done.
Loaded symbols for /var/proxy-cache/lib/libaprutil-1.so.0
Reading symbols from /usr/lib/libexpat.so.0...done.
Loaded symbols for /usr/lib/libexpat.so.0
Reading symbols from /var/proxy-cache/lib/libapr-1.so.0...done.
Loaded symbols for /var/proxy-cache/lib/libapr-1.so.0
Reading symbols from /lib/libuuid.so.1...done.
Loaded symbols for /lib/libuuid.so.1
Reading symbols from /lib/tls/librt.so.1...done.
Loaded symbols for /lib/tls/librt.so.1
Reading symbols from /lib/libcrypt.so.1...done.
Loaded symbols for /lib/libcrypt.so.1
Reading symbols from /lib/tls/libpthread.so.0...done.
[Thread debugging using libthread_db enabled]
[New Thread -151463072 (LWP 5241)]
Loaded symbols for /lib/tls/libpthread.so.0
Reading symbols from /lib/libdl.so.2...done.
Loaded symbols for /lib/libdl.so.2
Reading symbols from /lib/tls/libc.so.6...done.
Loaded symbols for /lib/tls/libc.so.6
Reading symbols from /lib/ld-linux.so.2...done.
Loaded symbols for /lib/ld-linux.so.2
Reading symbols from /lib/libnss_files.so.2...done.
Loaded symbols for /lib/libnss_files.so.2
Reading symbols from /lib/libnss_dns.so.2...done.
Loaded symbols for /lib/libnss_dns.so.2
Reading symbols from /lib/libresolv.so.2...done.
Loaded symbols for /lib/libresolv.so.2
0x00b14704 in apr_bucket_alloc@plt () from
/var/proxy-cache/lib/libaprutil-1.so.0
(gdb) where
#0  0x00b14704 in apr_bucket_alloc@plt () from
/var/proxy-cache/lib/libaprutil-1.so.0
#1  0x00b16593 in apr_bucket_flush_create (list=0x961d4c8) at
buckets/apr_buckets_flush.c:39
#2  0x0809570f in ap_proxy_http_process_response (p=0x96174b0, r=0x9625ca0,
backend=0x95f9780, origin=0x9617c08, conf=0x953f0f8,
    server_portstr=0xfee80990 ":8888") at mod_proxy_http.c:1632
#3  0x080960c1 in proxy_http_handler (r=0x9625ca0, worker=0x95b22a0,
conf=0x953f0f8, url=0x9617bf0 "/cluster/news/hd/1",
    proxyname=0x0, proxyport=<value optimized out>) at mod_proxy_http.c:1871
#4  0x0808a8d1 in proxy_run_scheme_handler (r=0x9625ca0, worker=0x95b22a0,
conf=0x953f0f8,
    url=0x9627376 "http://www.dailymotion.com/cluster/news/hd/1",
proxyhost=0x0, proxyport=0) at mod_proxy.c:2208
#5  0x0808d104 in proxy_handler (r=0x9625ca0) at mod_proxy.c:852
#6  0x08072fe6 in ap_run_handler (r=0x9625ca0) at config.c:157
#7  0x080733b1 in ap_invoke_handler (r=0x9625ca0) at config.c:372
#8  0x0809e6e9 in ap_process_request (r=0x9625ca0) at http_request.c:258
#9  0x0809c20d in ap_process_http_connection (c=0x9617680) at http_core.c:190
#10 0x08078876 in ap_run_process_connection (c=0x9617680) at connection.c:43
#11 0x080af2f3 in child_main (child_num_arg=<value optimized out>) at
prefork.c:640
#12 0x080af52a in make_child (s=<value optimized out>, slot=568) at
prefork.c:736
#13 0x080b00b1 in ap_mpm_run (_pconf=0x95380a8, plog=0x9582310, s=0x953e2c8) at
prefork.c:871
#14 0x080633ac in main (argc=3, argv=0xfee80ed4) at main.c:730


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