Apparently the problem isn't fixed... even when qemu doesn't crash, the guest raises many I/O error and turns unusable, just like a real machine would do if you physically remove the hard drive, I guess...
I'm doing more tests anyway and will post a much more detailed report as soon as I can. Thanks for now. Guido 2013/7/28 Anand Avati <anand.av...@gmail.com> > Guido, > You need a couple of fixes: > > http://review.gluster.org/5378 - to fix the root cause of the failure > (portmap failure) > http://review.gluster.org/5407 - to prevent a crash in case of such > failures. > > Can you please apply the patches and confirm if they fix your issue? > > Thanks, > Avati > > > On Fri, Jul 26, 2013 at 4:02 PM, Guido De Rosa > <guido.der...@vemarsas.it>wrote: > >> 2013/7/26 Anand Avati <anand.av...@gmail.com>: >> > Can you please post the backtrace and logs from the crash? >> >> # gdb >> ... >> (gdb) file /usr/local/bin/qemu-system-x86_64 >> Reading symbols from /usr/local/bin/qemu-system-x86_64...done. >> (gdb) run -uuid "e06dc280-d74a-0130-49e3-003018a4d17c" -name >> "deb-on-gluster" -m "2048" -vnc ":1" -k "it" -pidfile >> "/var/run/onboard/qemu-e06dc280.pid" -monitor >> unix:"/var/run/onboard/qemu-e06dc280.sock",server,nowait -smp 2 >> -device piix3-usb-uhci,id=piix3-uhci -device usb-ehci,id=ehci -device >> usb-tablet,bus=piix3-uhci.0 -drive >> >> serial="QME06DC28000",if="virtio",media="disk",cache="unsafe",file="gluster://localhost/gvtest/QEMU/deb-on-gluster/disk0.qcow2",index=0 >> -drive serial="QME06DC28001",if="ide",media="cdrom",bus=1,unit=0 -net >> nic,vlan=0,model=virtio,macaddr=DE:AD:BE:6C:CF:30 -net >> tap,vlan=0,ifname=vDebOnGluster_0,script=no,downscript=no -boot >> menu=on,order=dc -cpu host -enable-kvm -runas onboard >> >> ... >> >> On another terminal: >> >> # gluster volume add-brick gvtest replica 2 >> 192.168.232.101:/var/export/gluster/gvtest >> volume add-brick: success >> >> And here the crash: >> >> [Thread debugging using libthread_db enabled] >> Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1". >> [New Thread 0x7fffe5dad700 (LWP 8611)] >> [New Thread 0x7fffe55ac700 (LWP 8618)] >> [New Thread 0x7fffe4548700 (LWP 8621)] >> [New Thread 0x7fffe3b33700 (LWP 8622)] >> [New Thread 0x7fffdbdfd700 (LWP 8623)] >> [New Thread 0x7fffdb5fc700 (LWP 8624)] >> [New Thread 0x7fffd9dff700 (LWP 8626)] >> [New Thread 0x7fffc7fff700 (LWP 8627)] >> [New Thread 0x7fffc63fe700 (LWP 8628)] >> >> Program received signal SIGSEGV, Segmentation fault. >> [Switching to Thread 0x7fffe5dad700 (LWP 8611)] >> glfs_subvol_done (fs=0x5555566cfc20, subvol=subvol@entry=0x0) at >> glfs-resolve.c:802 >> 802 glfs-resolve.c: No such file or directory. >> (gdb) >> (gdb) bt >> #0 glfs_subvol_done (fs=0x5555566cfc20, subvol=subvol@entry=0x0) at >> glfs-resolve.c:802 >> #1 0x00007ffff70aff50 in glfs_pwritev (glfd=0x5555566d79b0, >> iovec=<optimized out>, >> iovcnt=<optimized out>, offset=8368975872, flags=0) at glfs-fops.c:761 >> #2 0x00007ffff70b04e7 in glfs_io_async_task (data=<optimized out>) at >> glfs-fops.c:584 >> #3 0x00007ffff0080b22 in synctask_wrap (old_task=<optimized out>) at >> syncop.c:131 >> #4 0x00007ffff0541710 in ?? () from /lib/x86_64-linux-gnu/libc.so.6 >> #5 0x0000000000000000 in ?? () >> >> >> Log: /var/log/glusterfs/etc-glusterfs-glusterd.vol.log >> >> [2013-07-26 22:27:45.877325] I >> [glusterd-brick-ops.c:370:__glusterd_handle_add_brick] 0-management: >> Received add brick req >> [2013-07-26 22:27:45.877398] I >> [glusterd-brick-ops.c:417:__glusterd_handle_add_brick] 0-management: >> repl >> ica-count is 2 >> [2013-07-26 22:27:45.877415] I >> [glusterd-brick-ops.c:193:gd_addbr_validate_replica_count] >> 0-management: >> Changing the type of volume gvtest from 'distribute' to 'replica' >> [2013-07-26 22:27:45.879877] I >> [glusterd-brick-ops.c:894:glusterd_op_perform_add_bricks] >> 0-management: r >> eplica-count is set 2 >> [2013-07-26 22:27:45.879907] I >> [glusterd-brick-ops.c:898:glusterd_op_perform_add_bricks] >> 0-management: t >> ype is set 2, need to change it >> [2013-07-26 22:27:45.882314] I >> [glusterd-utils.c:954:glusterd_volume_brickinfo_get] 0-management: >> Found >> brick >> [2013-07-26 22:27:45.882349] I >> [glusterd-utils.c:954:glusterd_volume_brickinfo_get] 0-management: >> Found >> brick >> [2013-07-26 22:27:45.883952] I >> [glusterd-utils.c:954:glusterd_volume_brickinfo_get] 0-management: >> Found >> brick >> [2013-07-26 22:27:45.883978] I >> [glusterd-utils.c:954:glusterd_volume_brickinfo_get] 0-management: >> Found >> brick >> [2013-07-26 22:27:45.884704] I >> [glusterd-utils.c:954:glusterd_volume_brickinfo_get] 0-management: >> Found >> brick >> [2013-07-26 22:27:46.617898] I >> [glusterd-utils.c:954:glusterd_volume_brickinfo_get] 0-management: >> Found >> brick >> [2013-07-26 22:27:46.617945] I >> [glusterd-utils.c:954:glusterd_volume_brickinfo_get] 0-management: >> Found >> brick >> [2013-07-26 22:27:47.618736] E >> [glusterd-utils.c:3627:glusterd_nodesvc_unlink_socket_file] >> 0-management: >> [2013-07-26 22:27:45.877325] I >> [glusterd-brick-ops.c:370:__glusterd_handle_add_brick] 0-management: >> Rece >> ived add brick req >> [2013-07-26 22:27:45.877398] I >> [glusterd-brick-ops.c:417:__glusterd_handle_add_brick] 0-management: >> repl >> ica-count is 2 >> [2013-07-26 22:27:45.877415] I >> [glusterd-brick-ops.c:193:gd_addbr_validate_replica_count] >> 0-management: >> Changing the type of volume gvtest from 'distribute' to 'replica' >> [2013-07-26 22:27:45.879877] I >> [glusterd-brick-ops.c:894:glusterd_op_perform_add_bricks] >> 0-management: r >> eplica-count is set 2 >> [2013-07-26 22:27:45.879907] I >> [glusterd-brick-ops.c:898:glusterd_op_perform_add_bricks] >> 0-management: t >> ype is set 2, need to change it >> [2013-07-26 22:27:45.882314] I >> [glusterd-utils.c:954:glusterd_volume_brickinfo_get] 0-management: >> Found >> brick >> [2013-07-26 22:27:45.882349] I >> [glusterd-utils.c:954:glusterd_volume_brickinfo_get] 0-management: >> Found >> brick >> [2013-07-26 22:27:45.883952] I >> [glusterd-utils.c:954:glusterd_volume_brickinfo_get] 0-management: >> Found >> brick >> [2013-07-26 22:27:45.883978] I >> [glusterd-utils.c:954:glusterd_volume_brickinfo_get] 0-management: >> Found >> brick >> [2013-07-26 22:27:45.884704] I >> [glusterd-utils.c:954:glusterd_volume_brickinfo_get] 0-management: >> Found >> brick >> [2013-07-26 22:27:46.617898] I >> [glusterd-utils.c:954:glusterd_volume_brickinfo_get] 0-management: >> Found >> brick >> [2013-07-26 22:27:46.617945] I >> [glusterd-utils.c:954:glusterd_volume_brickinfo_get] 0-management: >> Found >> brick >> [2013-07-26 22:27:47.618736] E >> [glusterd-utils.c:3627:glusterd_nodesvc_unlink_socket_file] >> 0-management: >> [2013-07-26 22:27:47.619092] I >> [glusterd-utils.c:3661:glusterd_nfs_pmap_deregister] 0-: De-registered >> MOUNTV3 successfully >> [2013-07-26 22:27:47.619386] I >> [glusterd-utils.c:3666:glusterd_nfs_pmap_deregister] 0-: De-registered >> MOUNTV1 successfully >> [2013-07-26 22:27:47.619682] I >> [glusterd-utils.c:3671:glusterd_nfs_pmap_deregister] 0-: De-registered >> NFSV3 successfully >> [2013-07-26 22:27:47.620004] I >> [glusterd-utils.c:3676:glusterd_nfs_pmap_deregister] 0-: De-registered >> NLM v4 successfully >> [2013-07-26 22:27:47.620343] I >> [glusterd-utils.c:3681:glusterd_nfs_pmap_deregister] 0-: De-registered >> NLM v1 successfully >> [2013-07-26 22:27:47.622905] I >> [rpc-clnt.c:962:rpc_clnt_connection_init] 0-management: setting >> frame-timeout to 600 >> [2013-07-26 22:27:47.622988] I [socket.c:3480:socket_init] >> 0-management: SSL support is NOT enabled >> [2013-07-26 22:27:47.623003] I [socket.c:3495:socket_init] >> 0-management: using system polling thread >> [2013-07-26 22:27:48.650339] E >> [glusterd-utils.c:3627:glusterd_nodesvc_unlink_socket_file] >> 0-management: Failed to remove >> /var/run/52b6ed075a07af2e9235e49dd9d214af.socke >> t error: No such file or directory >> [2013-07-26 22:27:48.652919] I >> [rpc-clnt.c:962:rpc_clnt_connection_init] 0-management: setting >> frame-timeout to 600 >> [2013-07-26 22:27:48.653002] I [socket.c:3480:socket_init] >> 0-management: SSL support is NOT enabled >> [2013-07-26 22:27:48.653017] I [socket.c:3495:socket_init] >> 0-management: using system polling thread >> [2013-07-26 22:27:48.653215] W [socket.c:514:__socket_rwv] >> 0-management: readv failed (No data available) >> [2013-07-26 22:27:48.653333] I [mem-pool.c:541:mem_pool_destroy] >> 0-management: size=2236 max=0 total=0 >> [2013-07-26 22:27:48.653354] I [mem-pool.c:541:mem_pool_destroy] >> 0-management: size=124 max=0 total=0 >> [2013-07-26 22:27:48.653398] I [socket.c:2236:socket_event_handler] >> 0-transport: disconnecting now >> [2013-07-26 22:27:48.653453] W [socket.c:514:__socket_rwv] >> 0-management: readv failed (No data available) >> [2013-07-26 22:27:48.653478] I [mem-pool.c:541:mem_pool_destroy] >> 0-management: size=2236 max=0 total=0 >> [2013-07-26 22:27:48.653493] I [mem-pool.c:541:mem_pool_destroy] >> 0-management: size=124 max=0 total=0 >> [2013-07-26 22:27:48.653537] I [socket.c:2236:socket_event_handler] >> 0-transport: disconnecting now >> [2013-07-26 22:27:48.680240] E [rpcsvc.c:519:rpcsvc_handle_rpc_call] >> 0-glusterd: Request received from non-privileged port. Failing request >> [2013-07-26 22:27:52.093567] E [rpcsvc.c:519:rpcsvc_handle_rpc_call] >> 0-glusterd: Request received from non-privileged port. Failing request >> [2013-07-26 22:27:55.094469] E [rpcsvc.c:519:rpcsvc_handle_rpc_call] >> 0-glusterd: Request received from non-privileged port. Failing request >> >> -- >> >> G. >> > >
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