On Tue, 26 Oct 2010, Christian Brunner wrote: > When accessing multiple RBD-Volumes from one VM in parallel, we are > receiving an assertion: > > ./osd/OSDMap.h: In function 'entity_inst_t OSDMap::get_inst(int)': > ./osd/OSDMap.h:460: FAILED assert(exists(osd) && is_up(osd)) Can you change that into two asserts so we can see which it is? And/or can you gdb this and see what the value of osd is here? Thanks! sage > ceph version 0.22.1 (commit:c6f403a6f441184956e00659ce713eaee7014279) > 1: (Objecter::op_submit(Objecter::Op*)+0x6c2) [0x38658854c2] > 2: /usr/lib64/librados.so.1() [0x3865855dc9] > 3: (RadosClient::aio_write(RadosClient::PoolCtx&, object_t, long, > ceph::buffer::list const&, unsigned long, > RadosClient::AioCompletion*)+0x24b) [0x386585724b] > 4: (rados_aio_write()+0x9a) [0x386585741a] > 5: /usr/bin/qemu-kvm() [0x45a305] > 6: /usr/bin/qemu-kvm() [0x45a430] > 7: /usr/bin/qemu-kvm() [0x43bb73] > NOTE: a copy of the executable, or `objdump -rdS <executable>` is > needed to interpret this. > ./osd/OSDMap.h: In function 'entity_inst_t OSDMap::get_inst(int)': > ./osd/OSDMap.h:460: FAILED assert(exists(osd) && is_up(osd)) > ceph version 0.22.1 (commit:c6f403a6f441184956e00659ce713eaee7014279) > 1: (Objecter::op_submit(Objecter::Op*)+0x6c2) [0x38658854c2] > 2: /usr/lib64/librados.so.1() [0x3865855dc9] > 3: (RadosClient::aio_write(RadosClient::PoolCtx&, object_t, long, > ceph::buffer::list const&, unsigned long, > RadosClient::AioCompletion*)+0x24b) [0x386585724b] > 4: (rados_aio_write()+0x9a) [0x386585741a] > 5: /usr/bin/qemu-kvm() [0x45a305] > 6: /usr/bin/qemu-kvm() [0x45a430] > 7: /usr/bin/qemu-kvm() [0x43bb73] > NOTE: a copy of the executable, or `objdump -rdS <executable>` is > needed to interpret this. > terminate called after throwing an instance of 'ceph::FailedAssertion' > *** Caught signal (ABRT) *** > ceph version 0.22.1 (commit:c6f403a6f441184956e00659ce713eaee7014279) > 1: (sigabrt_handler(int)+0x91) [0x3865922b91] > 2: /lib64/libc.so.6() [0x3c0c032a30] > 3: (gsignal()+0x35) [0x3c0c0329b5] > 4: (abort()+0x175) [0x3c0c034195] > 5: (__gnu_cxx::__verbose_terminate_handler()+0x12d) [0x3c110beaad] > > This is reproducible by doing the following inside a VM: > > # mkfs.btrfs /dev/vdb /dev/vdc /dev/vdd /dev/vde > # mount /dev/vdb /mnt > # cd /mnt > # bonnie++ -u root -d /mnt -f > > Any hints are welcome... > > Thanks, > > Christian > -- > To unsubscribe from this list: send the line "unsubscribe ceph-devel" in > the body of a message to majordomo@xxxxxxxxxxxxxxx > More majordomo info at http://vger.kernel.org/majordomo-info.html > > -- To unsubscribe from this list: send the line "unsubscribe ceph-devel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html