with mariadb-5.5.25 on a centos 5.8 machine, when i run this:<div><br></div><div>./<a href="http://mysql-test-run.pl" target="_blank">mysql-test-run.pl</a> --suite=rpl --force --max-test-fail=0 --nowarnings --parallel=4</div>
<div><br></div><div>mysqld crashes in the xtradb code trying to deref a NULL pointer.  core files are available.</div><div><br></div><div><div>Core was generated by `/home/prohaska/distros/mariadb-5.5.25-linux-x86_64/bin/mysqld --defaults-group-&#39;.</div>
<div>Program terminated with signal 11, Segmentation fault.</div><div>#0  0x000000000095aa15 in os_aio_get_array_and_local_segment (global_seg=4, message1=0x43b910d8, message2=0x43b910d0, type=0x43b910c8, space_id=0x43b910c0)</div>
<div>    at /home/buildbot/buildbot/build/storage/xtradb/os/os0file.c:3787</div><div>3787<span class="Apple-tab-span" style="white-space:pre">	</span>/home/buildbot/buildbot/build/storage/xtradb/os/os0file.c: No such file or directory.</div>
<div><span class="Apple-tab-span" style="white-space:pre">	</span>in /home/buildbot/buildbot/build/storage/xtradb/os/os0file.c</div><div>(gdb) bt</div><div>#0  0x000000000095aa15 in os_aio_get_array_and_local_segment (global_seg=4, message1=0x43b910d8, message2=0x43b910d0, type=0x43b910c8, space_id=0x43b910c0)</div>
<div>    at /home/buildbot/buildbot/build/storage/xtradb/os/os0file.c:3787</div><div>#1  os_aio_linux_handle (global_seg=4, message1=0x43b910d8, message2=0x43b910d0, type=0x43b910c8, space_id=0x43b910c0) at /home/buildbot/buildbot/build/storage/xtradb/os/os0file.c:4671</div>
<div>#2  0x00000000009114d7 in fil_aio_wait (segment=4) at /home/buildbot/buildbot/build/storage/xtradb/fil/fil0fil.c:5530</div><div>#3  0x000000000088d1ee in io_handler_thread (arg=&lt;value optimized out&gt;) at /home/buildbot/buildbot/build/storage/xtradb/srv/srv0start.c:483</div>
<div>#4  0x000000310e60677d in start_thread () from /lib64/libpthread.so.0</div><div>#5  0x000000310dad325d in clone () from /lib64/libc.so.6</div><div>(gdb) p os_aio_read_array</div><div>$1 = (os_aio_array_t *) 0x0</div>
</div><div><br></div>