Bugs item #2780039, was opened at 2009-04-24 03:08
Message generated for change (Comment added) made by stmane
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Category: SQL/Core
Group: MonetDB Common "stable"
Status: Open
Resolution: None
Priority: 5
Private: No
Submitted By: Stefan de Konink (skinkie)
Assigned to: Niels Nes (nielsnes)
Summary: SIGSEGV upon PLAN
Initial Comment:
Running the following combination of queries:
CREATE TABLE node_tags (node integer, k varchar(255), v varchar(1024));
COPY 825352907 RECORDS INTO node_tags from '/export/data1/konink/node_tags.csv'
USING DELIMITERS ',', '\n', '''';
at the same time {
select * from node_tags where k = 'name' and lower(v) = lower('London');
PLAN select * from node_tags where k = 'name' and lower(v) = lower('London');
}
I manage to get the server into a segmentation fault, using the release
candidate, hence no debugging symbols.
[Switching to Thread 0x7fffe3068950 (LWP 3816)]
0x00007ffff76ced54 in GDKqsort_void_direct_int () from
/export/scratch1/konink/monetdb-rc/lib/libbat.so.1
(gdb) bt
#0 0x00007ffff76ced54 in GDKqsort_void_direct_int () from
/export/scratch1/konink/monetdb-rc/lib/libbat.so.1
#1 0x00007ffff76fe166 in GDKqsort () from
/export/scratch1/konink/monetdb-rc/lib/libbat.so.1
#2 0x00007ffff7631f58 in BBPtrim () from
/export/scratch1/konink/monetdb-rc/lib/libbat.so.1
#3 0x00007ffff7696f00 in GDKmemchk () from
/export/scratch1/konink/monetdb-rc/lib/libbat.so.1
#4 0x00007ffff7698785 in GDKmallocmax () from
/export/scratch1/konink/monetdb-rc/lib/libbat.so.1
#5 0x00007ffff769894f in GDKmalloc () from
/export/scratch1/konink/monetdb-rc/lib/libbat.so.1
#6 0x00007fffe99daa74 in strLower () from
/export/scratch1/konink/monetdb-rc/lib/MonetDB5/lib/lib_str.so
#7 0x00007fffe85d2d2c in STRbatLower () from
/export/scratch1/konink/monetdb-rc/lib/MonetDB5/lib/lib_batstr.so
#8 0x00007ffff7d1f0f2 in DFLOWstep () from
/export/scratch1/konink/monetdb-rc/lib/libmonetdb5.so.5
#9 0x00007ffff7d20180 in runDFLOWworker () from
/export/scratch1/konink/monetdb-rc/lib/libmonetdb5.so.5
#10 0x0000003c1a4073da in start_thread () from /lib64/libpthread.so.0
#11 0x0000003c19ce62bd in clone () from /lib64/libc.so.6
----------------------------------------------------------------------
>Comment By: Stefan Manegold (stmane)
Date: 2009-04-25 18:27
Message:
FYI: just like all MonetDB CVS sources and tarballs, also the release
candidate (either tarball or CVS tag) can be configured with --enable-debug
to get debugging sysmbols.
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