Crash with Segmentation fault in couch_view_group_cleanup

Tests are not failing but cores being dumped on the machines during cleanup.

http://qa.hq.northscale.net/job/centos_x64--44_04--observe-P0/54/console

gdb /opt/couchbase/bin/couch_view_group_cleanup core.couch_view_grou.5003
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<http://www.gnu.org/software/gdb/bugs/>...
Reading symbols from /opt/couchbase/bin/couch_view_group_cleanup...done.

warning: core file may not match specified executable file.
[New Thread 5003]
[New Thread 5004]
Reading symbols from /opt/couchbase/bin/../lib/libcouchstore.so...done.
Loaded symbols for /opt/couchbase/bin/../lib/libcouchstore.so
Reading symbols from /opt/couchbase/bin/../lib/libv8.so...done.
Loaded symbols for /opt/couchbase/bin/../lib/libv8.so
Reading symbols from /opt/couchbase/bin/../lib/libicui18n.so.44...(no debugging symbols found)...done.
Loaded symbols for /opt/couchbase/bin/../lib/libicui18n.so.44
Reading symbols from /opt/couchbase/bin/../lib/libicuuc.so.44...(no debugging symbols found)...done.
Loaded symbols for /opt/couchbase/bin/../lib/libicuuc.so.44
Reading symbols from /opt/couchbase/bin/../lib/libicudata.so.44...(no debugging symbols found)...done.
Loaded symbols for /opt/couchbase/bin/../lib/libicudata.so.44
Reading symbols from /opt/couchbase/bin/../lib/libsnappy.so.1...done.
Loaded symbols for /opt/couchbase/bin/../lib/libsnappy.so.1
Reading symbols from /opt/couchbase/bin/../lib/libplatform.so.0.1.0...done.
Loaded symbols for /opt/couchbase/bin/../lib/libplatform.so.0.1.0
Reading symbols from /lib64/libpthread.so.0...(no debugging symbols found)...done.
[Thread debugging using libthread_db enabled]
Loaded symbols for /lib64/libpthread.so.0
Reading symbols from /lib64/libdl.so.2...(no debugging symbols found)...done.
Loaded symbols for /lib64/libdl.so.2
Reading symbols from /lib64/librt.so.1...(no debugging symbols found)...done.
Loaded symbols for /lib64/librt.so.1
Reading symbols from /lib64/libc.so.6...(no debugging symbols found)...done.
Loaded symbols for /lib64/libc.so.6
Reading symbols from /usr/lib64/libstdc++.so.6...(no debugging symbols found)...done.
Loaded symbols for /usr/lib64/libstdc++.so.6
Reading symbols from /lib64/libm.so.6...(no debugging symbols found)...done.
Loaded symbols for /lib64/libm.so.6
Reading symbols from /lib64/libgcc_s.so.1...(no debugging symbols found)...done.
Loaded symbols for /lib64/libgcc_s.so.1
Reading symbols from /lib64/ld-linux-x86-64.so.2...(no debugging symbols found)...done.
Loaded symbols for /lib64/ld-linux-x86-64.so.2

warning: no loadable sections found in added symbol-file system-supplied DSO at 0x7fffd1321000
Core was generated by `/opt/couchbase/bin/couch_view_group_cleanup'.
Program terminated with signal 11, Segmentation fault.
#0 0x0000003ea2833427 in exit () from /lib64/libc.so.6
(gdb) t a a bt

Thread 2 (Thread 5004):
#0 0x0000003ea28c6c2b in write () from /lib64/libc.so.6
#1 0x0000003ea286bc23 in _IO_new_file_write () from /lib64/libc.so.6
#2 0x0000003ea286bb36 in _IO_new_do_write () from /lib64/libc.so.6
#3 0x0000003ea286dbf4 in _IO_flush_all_lockp () from /lib64/libc.so.6
#4 0x0000003ea286e745 in _IO_cleanup () from /lib64/libc.so.6
#5 0x0000003ea28334b2 in exit () from /lib64/libc.so.6
#6 0x0000000000400ddb in exit_thread_helper (args=<value optimized out>) at /buildbot/build_slave/centos-5-x64-300-builder/build/build/couchstore/src/views/bin/util.c:38
#7 0x00002af385f64bff in platform_thread_wrap (arg=<value optimized out>) at /buildbot/build_slave/centos-5-x64-300-builder/build/build/platform/src/cb_pthreads.c:19
#8 0x0000003ea300677d in start_thread () from /lib64/libpthread.so.0
#9 0x0000003ea28d49ad in clone () from /lib64/libc.so.6

Thread 1 (Thread 0x2af386174e00 (LWP 5003)):
#0 0x0000003ea2833427 in exit () from /lib64/libc.so.6
#1 0x0000003ea281d99b in __libc_start_main () from /lib64/libc.so.6
#2 0x0000000000400aa9 in _start ()
(gdb)