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From bugzi...@apache.org
Subject DO NOT REPLY [Bug 52933] Child survives '-k stop', consuming lots of CPU
Date Thu, 29 Mar 2012 19:09:12 GMT
https://issues.apache.org/bugzilla/show_bug.cgi?id=52933

--- Comment #5 from Petter Berntsen <petterb@gmail.com> 2012-03-29 19:09:12 UTC ---
It happened again, here's three gdb screens:


No symbol table info available.
#1  0x0000000000466ad5 in ap_queue_pop_something (queue=0x9ae530,
sd=0x7f0336ffce78, ecs=0x7f0336ffce70, p=0x7f0336ffce68, te_out=0x7f0336ffce60)
at fdqueue.c:438
        elem = <value optimized out>
        rv = <value optimized out>
#2  0x00000000004644ad in worker_thread (thd=0x9af0a8, dummy=<value optimized
out>) at event.c:1702
        ti = <value optimized out>
        process_slot = 0
        thread_slot = 5
        csd = 0x7f0338037600
        cs = 0x7f0338037808
        ptrans = 0x7f0338037578
        rv = <value optimized out>
        is_idle = 1
        te = 0x0
#3  0x00007f03451e27f1 in start_thread () from /lib64/libpthread.so.0
No symbol table info available.
#4  0x00007f0344f1f92d in clone () from /lib64/libc.so.6
No symbol table info available.

Thread 21 (Thread 0x7f03367fc700 (LWP 4357)):
#0  0x00007f03451e63dc in pthread_cond_wait@@GLIBC_2.3.2 () from
/lib64/libpthread.so.0
No symbol table info available.
#1  0x0000000000466ad5 in ap_queue_pop_something (queue=0x9ae530,
sd=0x7f03367fbe78, ecs=0x7f03367fbe70, p=0x7f03367fbe68, te_out=0x7f03367fbe60)
at fdqueue.c:438
        elem = <value optimized out>
        rv = <value optimized out>
#2  0x00000000004644ad in worker_thread (thd=0x9af0d8, dummy=<value optimized
out>) at event.c:1702
        ti = <value optimized out>
        process_slot = 0
        thread_slot = 6
        csd = 0x7f03380396d0
        cs = 0x0
        ptrans = 0x7f0338039658
        rv = <value optimized out>
        is_idle = 1
        te = 0x0
#3  0x00007f03451e27f1 in start_thread () from /lib64/libpthread.so.0
No symbol table info available.
#4  0x00007f0344f1f92d in clone () from /lib64/libc.so.6
No symbol table info available.

Thread 20 (Thread 0x7f0335ffb700 (LWP 4358)):
#0  0x00007f03451e63dc in pthread_cond_wait@@GLIBC_2.3.2 () from
/lib64/libpthread.so.0
No symbol table info available.
#1  0x0000000000466ad5 in ap_queue_pop_something (queue=0x9ae530,
sd=0x7f0335ffae78, ecs=0x7f0335ffae70, p=0x7f0335ffae68, te_out=0x7f0335ffae60)
at fdqueue.c:438
        elem = <value optimized out>
        rv = <value optimized out>
#2  0x00000000004644ad in worker_thread (thd=0x9af108, dummy=<value optimized
out>) at event.c:1702
        ti = <value optimized out>
        process_slot = 0
        thread_slot = 7
        csd = 0x7f0338037600
        cs = 0x7f0338037808
        ptrans = 0x7f0338037578
        rv = <value optimized out>
---Type <return> to continue, or q <return> to quit---

        is_idle = 1
        te = 0x0
#3  0x00007f03451e27f1 in start_thread () from /lib64/libpthread.so.0
No symbol table info available.
#4  0x00007f0344f1f92d in clone () from /lib64/libc.so.6
No symbol table info available.

Thread 19 (Thread 0x7f03357fa700 (LWP 4359)):
#0  apr_file_write (thefile=0x7f031001af78, buf=<value optimized out>,
nbytes=<value optimized out>) at file_io/unix/readwrite.c:176
        pos = <value optimized out>
        blocksize = 0
        size = 68
        rv = 0
#1  0x00007f0340b37fb4 in savefiltermethod (f=0x7f0310006a58,
bb=0x7f0310007eb8) at ufmodules/mod_savecontent.c:128
        ctxt = 0x7f0310007ed8
        bytes = 68
        buff = 0x7f0310019002 "<html xmlns=\"http://www.w3.org/1999/xhtml\"
xml:lang=\"no\" lang=\"no\">\n<head>\n<title>Panelet Plug</title>\n<meta
http-equiv=\"Content-Type\" content=\"text/html; charset=UTF-8\" /> \n\n<style
type=\"text/css\">\n "...
        b = 0x7f0310087a18
        rv = <value optimized out>
#2  0x00007f03433a7c8a in filter_harness (f=0x7f0310006a58, bb=0x7f0310007eb8)
at mod_filter.c:313
        ret = <value optimized out>
        cachecontrol = <value optimized out>
        str = <value optimized out>
        ctx = 0x7f0310006af0
        filter = <value optimized out>
#3  0x00007f0340d3ad0a in substitute_filter (f=0x7f0310006a30,
bb=0x7f0310007e10) at ufmodules/mod_ouf_substitute.c:566
        bytes = 0
        len = <value optimized out>
        fbytes = 139651759166952
        buff = 0x7f0310019046 "<head>\n<title>Panelet Plug</title>\n<meta
http-equiv=\"Content-Type\" content=\"text/html; charset=UTF-8\" /> \n\n<style
type=\"text/css\">\n    \n    body {\n        \n        font-family: Arial,
Tahoma, Verdana;"...
        nl = <value optimized out>
        bflat = 0x6b <Address 0x6b out of bounds>
        b = <value optimized out>
        tmp_b = <value optimized out>
        tmp_bb = 0x0
        rv = <value optimized out>
        ctx = 0x7f0310007e30
#4  0x00007f03433a7c8a in filter_harness (f=0x7f0310006a30, bb=0x7f0310007e10)
at mod_filter.c:313
        ret = <value optimized out>
        cachecontrol = <value optimized out>
        str = <value optimized out>
        ctx = 0x7f0310006ad8
        filter = <value optimized out>
#5  0x00007f03431a4a0c in substitute_filter (f=0x7f0310006a08,
bb=0x7f0310007d90) at mod_substitute.c:511
        bytes = 0
        len = <value optimized out>
        fbytes = 139651130075384
        buff = 0x7f03100199a0 "        <div class=\"question\"><a
href=\"http://politisk.tv2.no//spesial/panelet/sporsmaal/h"
        nl = <value optimized out>
        bflat = 0x1fa0 <Address 0x1fa0 out of bounds>
        b = <value optimized out>
        tmp_b = <value optimized out>
---Type <return> to continue, or q <return> to quit---

        tmp_bb = 0x0
        rv = <value optimized out>
        ctx = 0x7f0310004898
#6  0x00007f03433a7c8a in filter_harness (f=0x7f0310006a08, bb=0x7f0310007d90)
at mod_filter.c:313
        ret = <value optimized out>
        cachecontrol = <value optimized out>
        str = <value optimized out>
        ctx = 0x7f0310006ac0
        filter = <value optimized out>
#7  0x00007f0340933115 in inflate_out_filter (f=0x7f03100069e0,
bb=0x7f0310007630) at mod_deflate.c:1316
        rv = <value optimized out>
        data = 0x114630b ""
        b = <value optimized out>
        len = 1093
        zlib_method = <value optimized out>
        zlib_flags = <value optimized out>
        e = 0x7f0310087b58
        r = 0x7f031000aa50
        ctx = 0x7f0310007ce0
        zRC = <value optimized out>
        rv = <value optimized out>
        c = 0x98e478
#8  0x00007f03433a7c8a in filter_harness (f=0x7f03100069e0, bb=0x7f0310007630)
at mod_filter.c:313
        ret = <value optimized out>
        cachecontrol = <value optimized out>
        str = <value optimized out>
        ctx = 0x7f0310006aa8
        filter = <value optimized out>
#9  0x00007f0341d68599 in ap_proxy_http_process_response (p=0x7f031000a9d8,
r=<value optimized out>, backend_ptr=0x7f03357f9b18, worker=0xa6c4f8,
conf=0xa6c268, 
    server_portstr=0x7f03357f9af0 "") at mod_proxy_http.c:1973
        readbytes = 1103
        rv = <value optimized out>
        mode = <value optimized out>
        finish = 0
        rc = <value optimized out>
        c = 0x7f0338039950
        buffer = "\000\nntent-Encoding\000
gzip\000\nser-Agent\000\n\000\n8\000\n\000\000\000\000!\000\000\000\000\000\000\000\001\000\000\000!",
'\000' <repeats 11 times>, "\001\000\000\000,{\177\065\003\177", '\000'
<repeats 14 times>,
"\005\000\000\000\350\220\177\065\003\177\000\000\232\020\335\361\001\000\000\000@\204\226;\000\000\000\000\360\220\177\065\003\177\000\000ӈ\177\065\003\177\000\000\350\220\177\065\003\177\000\000\f\221\177\065\003\177\000\000\060{\177\065\003\177\000\000${\177\065\003\177\000\000\b\221\177\065\003\177\000\000\020{\177\065\003\177\000\000\001\000\000\000\000\b\000\000({\177\065\003\177\000\000
L`t", '\000' <repeats 12 times>"\370, z\177\065\003\177"...
        buf = <value optimized out>
        keepchar = <value optimized out>
        e = <value optimized out>
        bb = 0x7f0310007630
        tmp_bb = 0x7f0310007678
        pass_bb = 0x7f0310007650
        len = 15
        backasswards = <value optimized out>
        interim_response = 0
        pread_len = <value optimized out>
        save_table = <value optimized out>
        backend_broke = 0
        hop_by_hop_hdrs = {0x7f0341d6a716 "Keep-Alive", 0x7f0341d6a9c7
"Proxy-Authenticate", 0x7f0341d6a721 "TE", 0x7f0341d6a724 "Trailer",
0x7f0341d6a72c "Upgrade", 0x0}
        i = <value optimized out>
---Type <return> to continue, or q <return> to quit---

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