Btw, this crash happened on 6.2.1. 

Please let me know if this is not the correct forum for these sort of 
questions. Thanks. 



> On Jul 31, 2017, at 11:15 AM, Dk Jack <[email protected]> wrote:
> 
> Hi,
> I am seeing an ATS crash. The stack trace and the crash log info for the 
> crash are pasted below. Seems to be happening in PluginVC::main_handler line 
> 216. I would appreciate it if someone can comment on possible reasons for 
> this crash? Thanks.
> 
> D.
> 
> 
> [Thread debugging using libthread_db enabled]
> Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
> Core was generated by `/opt/trafficserver/bin/traffic_server -M --bind_stdout 
> /opt/trafficserver/var/l'.
> Program terminated with signal SIGABRT, Aborted.
> #0  0x00002b8a43807428 in __GI_raise (sig=sig@entry=6) at 
> ../sysdeps/unix/sysv/linux/raise.c:54
> 54    ../sysdeps/unix/sysv/linux/raise.c: No such file or directory.
> [Current thread is 1 (Thread 0x2b8a4d312700 (LWP 136))]
> (gdb) bt
> #0  0x00002b8a43807428 in __GI_raise (sig=sig@entry=6) at 
> ../sysdeps/unix/sysv/linux/raise.c:54
> #1  0x00002b8a43809187 in __GI_abort () at abort.c:118
> #2  0x00002b8a417d5adf in ink_die_die_die () at ink_error.cc:43
> #3  ink_fatal_va (fmt=0x2b8a417e29ff "%s:%d: failed assert `%s`", 
> ap=ap@entry=0x2b8a4d311cf0)
>     at ink_error.cc:65
> #4  0x00002b8a417d5b79 in ink_fatal (
>     message_format=message_format@entry=0x2b8a417e29ff "%s:%d: failed assert 
> `%s`")
>     at ink_error.cc:73
> #5  0x00002b8a417d3c35 in _ink_assert (
>     expression=expression@entry=0x7f13e0 "call_event == 
> core_lock_retry_event",
>     file=file@entry=0x7f1413 "PluginVC.cc", line=line@entry=216) at 
> ink_assert.cc:37
> #6  0x00000000004fc68c in PluginVC::main_handler (this=0x2b8ad8807048, 
> event=<optimized out>,
>     data=0x2c31fa0) at PluginVC.cc:216
> #7  0x00000000007e0752 in Continuation::handleEvent (data=0x2c31fa0, event=1, 
> this=<optimized out>)
>     at I_Continuation.h:153
> #8  EThread::process_event (this=this@entry=0x2b8a4c707010, 
> e=e@entry=0x2c31fa0, calling_code=1)
>     at UnixEThread.cc:148
> #9  0x00000000007e15d8 in EThread::execute (this=0x2b8a4c707010) at 
> UnixEThread.cc:202
> #10 0x00000000007e01d5 in spawn_thread_internal (a=0x27a24d0) at Thread.cc:86
> #11 0x00002b8a42b176ba in start_thread (arg=0x2b8a4d312700) at 
> pthread_create.c:333
> #12 0x00002b8a438d93dd in clone () at 
> ../sysdeps/unix/sysv/linux/x86_64/clone.S:109
> (gdb)
> 
>  212   } else {
>  213     if (call_event == sm_lock_retry_event) {
>  214       sm_lock_retry_event = NULL;
>  215     } else {
>  216       ink_release_assert(call_event == core_lock_retry_event);
>  217       core_lock_retry_event = NULL;
>  218     }
>  219
> 
> Process:            [ET_NET 0] [72]
> File:               /opt/trafficserver/bin/traffic_server
> Version:            Traffic Server 6.2.1
> System Version:     Linux x86_64 #1 SMP Wed Apr 12 15:04:24 UTC 2017 
> 3.10.0-514.16.1.el7.x86_64
> Date:               Sat, 29 Jul 2017 08:15:01 +0000
> 
> No target signal information
> 
> No target CPU registers
> 
> Thread 136, [ET_NET 9]:
> 0    0x00000000004afb02 crash_logger_invoke(int, siginfo_t*, void*) + 0x82
> 1    0x00002b8a42b21390 __restore_rt + (nil)
> 2    0x00002b8a43807428 gsignal + 0x38
> 3    0x00002b8a4380902a abort + 0x16a
> 4    0x00002b8a417d5adf ink_fatal_va(char const*, __va_list_tag*) + 0x9f
> 5    0x00002b8a417d5b79 ink_fatal(char const*, ...) + 0x99
> 6    0x00002b8a417d3c35 _ink_assert + 0x15
> 7    0x00000000004fc68c PluginVC::main_handler(int, void*) + 0x5ac
> 8    0x00000000007e0752 EThread::process_event(Event*, int) + 0x92
> 9    0x00000000007e15d8 EThread::execute() + 0x808
> 10   0x00000000007e01d5 spawn_thread_internal(void*) + 0x55
> 11   0x00002b8a42b176ba start_thread + 0xca
> 12   0x00002b8a438d93dd clone + 0x6d
> 13   0x0000000000000000 0x0 + 0x6d
> 

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