------- Comment From [email protected] 2019-01-10 08:20 EDT------- I investigated the encode() / decode() of the magic number bit more:
Ceph seems use internally little endian data format. So the decoding of the magic number (https://github.com/ceph/ceph/blob/v12.1.2/src/crush/CrushWrapper.cc#L2097-L2105) converts from little to big endian on s390. For __u32 this is done encoding.h: https://github.com/ceph/ceph/blob/v12.1.2/src/include/encoding.h#L109 The conversion is done in the cast operator (https://github.com/ceph/ceph/blob/v12.1.2/src/include/encoding.h#L104) of the "struct ceph_le" template class: https://github.com/ceph/ceph/blob/v12.1.2/src/include/byteorder.h#L70-L72 For the byte swap operation form little to big endian the mswab() function is used: https://github.com/ceph/ceph/blob/v12.1.2/src/include/byteorder.h#L54-L58 The magic number seems to be properly encoded: https://github.com/ceph/ceph/blob/v12.1.2/src/crush/CrushWrapper.cc#L1922-L1927 And decoded: https://github.com/ceph/ceph/blob/v12.1.2/src/crush/CrushWrapper.cc#L2097-L2105 So at least no obvious / trivial problem here. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1713032 Title: [luminous] ceph-mon crashes when it is elected leader (s390x) To manage notifications about this bug go to: https://bugs.launchpad.net/cloud-archive/+bug/1713032/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
