[jira] [Created] (TS-2463) Crash in mime_mem_print() when slow-log is enabled (and triggered).

[Leif Hedstrom (JIRA)]

Leif Hedstrom created TS-2463:
---------------------------------

             Summary: Crash in mime_mem_print() when slow-log is enabled (and 
triggered).
                 Key: TS-2463
                 URL: https://issues.apache.org/jira/browse/TS-2463
             Project: Traffic Server
          Issue Type: Bug
          Components: HTTP, Logging
            Reporter: Leif Hedstrom


When I enable slow log, e.g.

{code}
CONFIG proxy.config.http.slow.log.threshold INT 10
{code}

This generates a crash like:

{code}
[Switching to Thread 0x7ffff67e6700 (LWP 3558)]
mime_mem_print (src_d=0x7ffff0c7384b 
"httpa/lib/ycs/bench/1000000.bmpl.yimg.comhttp://l.yimg.com/a/lib/ycs/bench/1000000.bmp";,
 src_l=4, buf_start=buf_start@entry=0x7ffff67e5b00 "", 
buf_length=buf_length@entry=256, buf_index_inout=buf_index_inout@entry=0x0, 
buf_chars_to_skip_inout=buf_chars_to_skip_inout@entry=0x0) at 
../../../../proxy/hdrs/MIME.cc:2645
2645      if (*buf_chars_to_skip_inout > 0) {
(gdb) bt
#0  mime_mem_print (src_d=0x7ffff0c7384b 
"httpa/lib/ycs/bench/1000000.bmpl.yimg.comhttp://l.yimg.com/a/lib/ycs/bench/1000000.bmp";,
 src_l=4, buf_start=buf_start@entry=0x7ffff67e5b00 "", 
buf_length=buf_length@entry=256, buf_index_inout=buf_index_inout@entry=0x0, 
buf_chars_to_skip_inout=buf_chars_to_skip_inout@entry=0x0) at 
../../../../proxy/hdrs/MIME.cc:2645
#1  0x00000000005c7f4a in url_print (url=0x7ffff0cb4b18, 
buf_start=0x7ffff67e5b00 "", buf_length=256, buf_index_inout=0x0, 
buf_chars_to_skip_inout=0x0) at ../../../../proxy/hdrs/URL.cc:1425
#2  0x00000000005b1f7a in print (this=0x7fffe370f940, dumpoffset=<optimized 
out>, bufindex=<optimized out>, bufsize=<optimized out>, buf=<optimized out>) 
at ../../../../proxy/hdrs/URL.h:385
#3  HTTPHdr::url_print (this=this@entry=0x7fffe370f928, 
buff=buff@entry=0x7ffff67e5b00 "", length=length@entry=256, 
offset=offset@entry=0x0, skip=skip@entry=0x0) at 
../../../../proxy/hdrs/HTTP.cc:1601
#4  0x0000000000524d9b in HttpSM::update_stats (this=this@entry=0x7fffe370f220) 
at ../../../../proxy/http/HttpSM.cc:6600
#5  0x00000000005298a8 in HttpSM::kill_this (this=0x7fffe370f220) at 
../../../../proxy/http/HttpSM.cc:6475
#6  0x0000000000529f58 in HttpSM::main_handler (this=0x7fffe370f220, 
event=2301, data=0x7fffe3710df0) at ../../../../proxy/http/HttpSM.cc:2543
#7  0x00000000005672cf in handleEvent (data=0x7fffe3710df0, event=2301, 
this=<optimized out>) at ../../../../iocore/eventsystem/I_Continuation.h:146
#8  HttpTunnel::main_handler (this=0x7fffe3710df0, event=<optimized out>, 
data=<optimized out>) at ../../../../proxy/http/HttpTunnel.cc:1506
#9  0x00000000005e82cf in handleEvent (data=0x7fffd00353f8, event=<optimized 
out>, this=<optimized out>) at 
../../../../iocore/eventsystem/I_Continuation.h:146
#10 CacheVC::calluser (this=0x7fffd00351b0, event=<optimized out>) at 
../../../../iocore/cache/P_CacheInternal.h:643
#11 0x000000000065f655 in CacheVC::openWriteMain (this=0x7fffd00351b0) at 
../../../../iocore/cache/CacheWrite.cc:1363
#12 0x00000000006a5ba0 in handleEvent (data=0x7fffe416afa0, event=1, 
this=<optimized out>) at ../../../../iocore/eventsystem/I_Continuation.h:146
#13 EThread::process_event (this=0x7ffff6cec010, e=0x7fffe416afa0, 
calling_code=1) at ../../../../iocore/eventsystem/UnixEThread.cc:145
#14 0x00000000006a6773 in EThread::execute (this=0x7ffff6cec010) at 
../../../../iocore/eventsystem/UnixEThread.cc:196
#15 0x00000000006a54ea in spawn_thread_internal (a=0xfe56d0) at 
../../../../iocore/eventsystem/Thread.cc:88
#16 0x00000036f8407f33 in start_thread (arg=0x7ffff67e6700) at 
pthread_create.c:309
#17 0x00000036f78f4ead in clone () at 
../sysdeps/unix/sysv/linux/x86_64/clone.S:111
{code}

with

{code}
(gdb) print buf_chars_to_skip_inout
$1 = (int *) 0x0
{code}




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