Hi all,

We are using MoentDB since 6 months with quite good results.(thanks to the dev team for their good work)

Unfortunately yesterday we came across an issue for which we can't find a solution.

Our database crashed for an unknown reason (RAM was fine, Disk space was fine) and now each time we re-use the same table with a query we used during the crash, the database crash with a seg fault

Query : select * from storage();

OS Version : CentOS release 6.7 (Final)

MonetDB Version : MonetDB Database Server Toolkit v1.1 (Jul2015)

tail /var/log/messages :

kernel: mserver5[9945]: segfault at 18 ip 00007f9e86fd534b sp 00007f9e862912e0 error 4 in lib_sql.so[7f9e86eb1000+182000]

merovingian.log :

database 'BI-DEV' (9972) was killed by signal SIGSEGV

Log from gbd :

Program received signal SIGSEGV, Segmentation fault.

[Switching to Thread 0x7ffa24edc700 (LWP 4683)]

0x00007ffa25c1f34b in delta_bind_bat () from /usr/lib64/monetdb5/lib_sql.so

(gdb) bt

#0  0x00007ffa25c1f34b in delta_bind_bat () from /usr/lib64/monetdb5/lib_sql.so

#1  0x00007ffa25b20fee in sql_storage () from /usr/lib64/monetdb5/lib_sql.so

#2  0x00007ffa321aea45 in runMALsequence () from /usr/lib64/libmonetdb5.so.19

#3  0x00007ffa321afe29 in callMAL () from /usr/lib64/libmonetdb5.so.19

#4  0x00007ffa25b369f7 in SQLexecutePrepared () from /usr/lib64/monetdb5/lib_sql.so

#5  0x00007ffa25b36efc in SQLengineIntern () from /usr/lib64/monetdb5/lib_sql.so

#6  0x00007ffa321c87dd in runScenarioBody () from /usr/lib64/libmonetdb5.so.19

#7  0x00007ffa321c886f in runScenario () from /usr/lib64/libmonetdb5.so.19

#8  0x00007ffa321c9738 in MSserveClient () from /usr/lib64/libmonetdb5.so.19

#9  0x00007ffa321ca816 in MSscheduleClient () from /usr/lib64/libmonetdb5.so.19

#10 0x00007ffa32266e0f in doChallenge () from /usr/lib64/libmonetdb5.so.19

#11 0x00007ffa31d2adcf in thread_starter () from /usr/lib64/libbat.so.12

#12 0x00007ffa2f97da51 in start_thread (arg=0x7ffa24edc700) at pthread_create.c:301

#13 0x00007ffa2f6ca93d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:115

Any help to understand and correct what is going on would be nice.

Regards 

Mathieu