<div dir="ltr"><div><div>Dear gluster experts,<br><br></div>Recently we have encountered a segmentation fault on one of our servers during glusterfs rebalance.<br></div>We use glusterfs 3.3, the crash statck is as following:<br>
<br>Core was generated by `/usr/sbin/glusterfs -s localhost --volfile-id mams-cq-mt-video --xlator-option'.<br>Program terminated with signal 11, Segmentation fault.<br>#0 0x000000306a075485 in malloc_consolidate () from /lib64/libc.so.6<br>
Missing separate debuginfos, use: debuginfo-install glusterfs-3.3.0-1.el6.x86_64<br>(gdb) bt<br>#0 0x000000306a075485 in malloc_consolidate () from /lib64/libc.so.6<br>#1 0x000000306a077e28 in _int_free () from /lib64/libc.so.6<br>
#2 0x00007f76952273c2 in gf_dirent_free (entries=0x7f765c600af0) at gf-dirent.c:66<br>#3 0x00007f76907bd77d in gf_defrag_migrate_data (this=0x296c8a0, defrag=0x298ad60, loc=0x7f765c601050, migrate_data=0x7f766451813c) at dht-rebalance.c:1232<br>
#4 0x00007f76907bdced in gf_defrag_fix_layout (this=0x296c8a0, defrag=0x298ad60, loc=0x7f765c601050, fix_layout=0x7f765811513c, migrate_data=0x7f766451813c)<br> at dht-rebalance.c:1269<br>#5 0x00007f76907be1d9 in gf_defrag_fix_layout (this=0x296c8a0, defrag=0x298ad60, loc=0x7f765c601260, fix_layout=0x7f765811513c, migrate_data=0x7f766451813c)<br>
at dht-rebalance.c:1361<br>#6 0x00007f76907be1d9 in gf_defrag_fix_layout (this=0x296c8a0, defrag=0x298ad60, loc=0x7f765c601470, fix_layout=0x7f765811513c, migrate_data=0x7f766451813c)<br> at dht-rebalance.c:1361<br>
#7 0x00007f76907be1d9 in gf_defrag_fix_layout (this=0x296c8a0, defrag=0x298ad60, loc=0x7f765c6015e0, fix_layout=0x7f765811513c, migrate_data=0x7f766451813c)<br> at dht-rebalance.c:1361<br>#8 0x00007f76907be62f in gf_defrag_start_crawl (data=0x296c8a0) at dht-rebalance.c:1469<br>
#9 0x00007f7695231a22 in synctask_wrap (old_task=<value optimized out>) at syncop.c:120<br>#10 0x000000306a043630 in ?? () from /lib64/libc.so.6<br>#11 0x0000000000000000 in ?? ()<br>(gdb) <br clear="all"><div><div>
<div><div><br></div><div>Any one know what's the problem?<br></div><div>Thank you.<br></div><div><br>-- <br>·ûÓÀÌÎ
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