Hi all,
I've got a bizarre situation. I've got a couple of little openstack clouds, one
where cinder uses LVM/iscsi and the other with cinder using rbd/ceph.
I'm trying to bring up the CentOS 7 qcow2 image from
"http://cloud.centos.org/centos/7/images/";.
In both clouds I can boot an instance from the image with no problems.
In the cloud using ceph for cinder I can boot from volume and it works as
expected.
In the cloud using LVM/iscsi I get segfaults in the guest logs when it boots up:
[ 3.672576] cloud-init[429]: segfault at 7fffe9bf4f50 ip 00007ffff7de69a9 sp
00007fffffffc620 error 6 in ld-2.17.so[7ffff7ddb000+21000]
[ 20.888077] postconf[711]: segfault at 8 ip 00007ffff7de66d8 sp
00007fffffffea30 error 4 in ld-2.17.so[7ffff7ddb000+21000]
[ 20.979021] cloud-init[708]: segfault at 7fffe9bf4f50 ip 00007ffff7de69a9 sp
00007fffffffc630 error 6 in ld-2.17.so[7ffff7ddb000+21000]
If I log in anyways and check the md5sum of /bin/vi it's different than expected
(and it's different every time I reboot the instance, but stays the same while
running). If I shutdown the guest and mount the iscsi device directly on the
compute host then the filesystem looks fine and the md5sum of /bin/vi on that
mount is as expected.
Some final pieces of data--the stock Ubuntu 14.10 and Fedora 21 cloud images
work fine booting from volume on both clouds.
Anyone got any ideas? I've disabled selinux, I've turned off the
"kernel.randomize_va_space" and "kernel.exec-shield" sysctl options, but so far
nothing helps.
Thanks,
Chris
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