Bug #5591
closedrbd-fuse crashes repeatedly under light load
0%
Description
The rbd-fuse client crashes when I do any kind of sustained IO to its devices (as little as 10 IOPS) for more than a few minutes.
This is a repeatable issue.
This particular host is running Redhat Linux 2.6.32-220.28.1.el6.x86_6.
/var/log messages shows the same error (segfault at 0 . . . . error 4 in libc-2.12.so) each time the rbd-ceph client crashes. I cannot find a core dump anywhere for rbd-fuse.
Jul 10 08:30:58 e8a5-dl585g7-01 kernel: rbd-fuse37620: segfault at 0 ip 0000003fd347f116 sp 00007f8ace7f8bc8 error 4 in libc-2.12.so[3fd3400000+189000]
Updated by Chris Clayton almost 11 years ago
In case it is important, I am running an io generator against 20 * 1024MB RBD images in parallel, made available to the client via the rbd-fuse progamme (with very low IO - as little as 1 IOPS can cause the crash after a few minutes).
Create rbd devices in pool cac- for j in `seq 20`; do rbd create MyBlock$j --size 1024 --pool cac; done
- rbd-fuse -p cac /home/cc83851/rbd
- ls /home/cc83851/rbd
MyBlock1 MyBlock11 MyBlock13 MyBlock15 MyBlock17 MyBlock19 MyBlock20 MyBlock4 MyBlock6 MyBlock8
MyBlock10 MyBlock12 MyBlock14 MyBlock16 MyBlock18 MyBlock2 MyBlock3 MyBlock5 MyBlock7 MyBlock9
Updated by Josh Durgin over 10 years ago
- Subject changed from rbd-client crashes repeatedly under light load to rbd-fuse crashes repeatedly under light load
Updated by Jason Dillaman about 5 years ago
- Status changed from New to Won't Fix