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Internal Error with condition: 'jmpbuf != NULL' (1 args), 3018 Error Occurrence

Document Type | Troubleshooting 

Category | Monitoring/Inspection

Applicable Product Version | 6FS07

Error Code | 3108

Document Number | TMOTS013

 

Issue

Intermittently, the errors "Internal Error with condition: 'jmpbuf != NULL' (1 args)" and memory shortage error 3018 occur.
 
out file
Thread #1596 (Session #1596): tb_thread_exit: (signo:0, sigtype:15)
Process #141 get restart thread (#1596) msg
[1596] Internal Error with condition: 'jmpbuf != NULL' (1 args) (tbsvr_err.h:177:tb_throw) (pid=31591, sessid=1596, tid=1596) ec = -3018 = 4294964278 = 0xfffff436
[1596] client : ip [] process [] logon time : [2025/02/24 15:20:57]
[1596] prev sql : "NULL"
[1596] current sql : "NULL"
[1596] *** 2025/02/24 15:24:01.936 ***
[1596] callstack dump from tbsvr_FGWP139 for [WTHR, 1596, 48970/31591]
[1596] SEE DUMP tbsvr.callstack.31591 (lwpid 48970) BY PSTACK

callstack

Thread 2 (Thread 0x7f653f229700 (LWP 48970)):
#0  0x00007f6842b4b9fd in nanosleep () from /lib64/libc.so.6
#1  0x00007f6842b4b894 in sleep () from /lib64/libc.so.6
#2  0x0000000000d73046 in tb_system (cmdstring=0xdc584c0 <cmd> "/usr/bin/pstack 31591 >> /data/tibero/tibero6/instance/EGENLMS1/tbsvr.callstack.31591 2>&1", ds=0x3fc4220 <debug_dstream>, kill_child=<optimized out>, timeout_in_sec=297) at /home/chef/workspace/Build_centos_7/tibero6/src/tbsvr/frame/callstack.c:297
#3  callstack_dump_internal (ds=ds@entry=0x3fc4220 <debug_dstream>, tid=tid@entry=1596, os_thr_id=os_thr_id@entry=48970, pid=pid@entry=31591, dump_dest_dir=dump_dest_dir@entry=0x0) at /home/chef/workspace/Build_centos_7/tibero6/src/tbsvr/frame/callstack.c:440
#4  0x0000000000d7358e in callstack_dump_ex (ds=0x3fc4220 <debug_dstream>, tid=1596, tid@entry=-1, dump_dest_dir=dump_dest_dir@entry=0x0) at /home/chef/workspace/Build_centos_7/tibero6/src/tbsvr/frame/callstack.c:472
#5  0x0000000000d719f4 in tb_tracedump (tracedump_cause=tracedump_cause@entry=TRACEDUMP_ASSERT) at /home/chef/workspace/Build_centos_7/tibero6/src/tbsvr/frame/tbsvr_tracedump.c:91
#6  0x000000000101093e in tb_assert_msg_detail (cond=cond@entry=0x2589baf "jmpbuf != NULL", argc=argc@entry=1, filename=filename@entry=0x2587d16 "tbsvr_err.h", line=line@entry=177, func=func@entry=0x258a81e <__func__.69735> "tb_throw") at /home/chef/workspace/Build_centos_7/tibero6/src/tbsvr/minimal/tb_assert.c:115
#7  0x000000000067cdab in tb_throw (ec=ec@entry=-3018, file=file@entry=0x282b7c4 "shp_alloc.c", line=line@entry=915, func=func@entry=0x2829ac0 <__func__.75447> :q/slab_alloc.c:225
#11 0x00000000018686f3 in sess_init_post () at /home/chef/workspace/Build_centos_7/tibero6/src/tbsvr/sess/sess.c:1307
#12 0x0000000000d89e45 in svr_init_tid (my_tid=my_tid@entry=1596, name=name@entry=0x7f6542797cdc "WTHR") at /home/chef/workspace/Build_centos_7/tibero6/src/tbsvr/frame/tbsvr_main.c:1341
#13 0x0000000000d43926 in wthr_init (args=0x7f6542797cd8) at /home/chef/workspace/Build_centos_7/tibero6/src/tbsvr/frame/tbsvr_cthr.c:3256
#14 0x00007f6845430ea5 in start_thread () from /lib64/libpthread.so.0
#15 0x00007f6842b84b0d in clone () from /lib64/libc.so.6

sys.log

[02-25T10:25:01.729132] [FRM-1581] [I] WTHR(1345) recovery
[02-25T10:25:01.729151] [FRM-1581] [I] thr cleanup WTHR(1345) sess(1345)
...
[02-25T10:25:01.731140] [ALC-1345] [I] Can't extend the allocator space. name: (SHP parent allocator) SLAB, ext_size: 16777216, total size: 721420288, max size: 732332120
[02-25T10:25:01.731164] [ALC-1345] [I] OUT_OF_SHP: shp_malloc fail. tid=1345, sessid=1345, req_size=496 file=/home/chef/workspace/Build_centos_7/tibero6/src/tbsvr/alloc/slab_alloc.c, line=225
[02-25T10:25:01.731181] [FRM-1345] [I] THROW. ec=ERROR_OUT_OF_SHP_FOR_CHUNKTYPE(-3018) [ Out of memory (unable to allocate 496 bytes of shared pool memory for SLAB_ALLOCATOR).] (csr_id:4294967295) [shp_alloc.c:915:shp_malloc_dbginfo]
[02-25T10:25:01.731198] [COM-1345] [I] Internal Error with condition 'jmpbuf != NULL' (1 args) (tbsvr_err.h:177:tb_throw) (pid=31566, sessid=1345, tid=1345)
SQL

v$sga

NAME                                          TOTAL       USED                  
---------------------------------------- ---------- ----------                  
SHARED MEMORY                            1.2885E+10 1.2885E+10                  
FIXED MEMORY                              1.142E+10  1.142E+10                  
SHARED POOL MEMORY                       1464573952 1191182336                  
SHARED POOL ALLOCATORS (LC)               201326592  193214960                  
SHARED POOL ALLOCATORS (DD)               134217728    6665448                  
SHARED POOL ALLOCATORS (SLAB)             721420288  720454048                  
SHARED POOL ALLOCATORS (MISC)             134217728   10522200                  
SHARED POOL ALLOCATORS (Total)           1191182336  930856656                  
Database Buffers                         8589934592 8589934592                  
Redo Buffers                              104857600  104857600

 

Cause

Upon checking v$sga and slog, although some SGA available space remains, the slab area is confirmed to be in a state where no further allocation is possible.
In Tibero, when a specific thread terminates, another thread performs cleanup on its behalf, and if the cleanup succeeds, the terminated thread is recreated.

During the thread recreation process, resources used internally are initialized, and this process uses the slab area. It has been confirmed that the 'jmpbuf != NULL' error occurred due to slab area shortage during thread recreation.
 
 

Solutions

Resolve by increasing memory.
 
 
 

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