I note this segfault has appeared in dmesg on the last couple of boots. [ 304.214560] multipathd[3083]: segfault at a ip 00007f5eb838798a sp 00007fffb225ebb0 error 4 in libc-2.11.1.so[7f5eb8310000+17a000]
After adjusting the blacklist, updating initrd and rebooting, the same behaviour is exhibited when I shut the active FC port: [ 429.234838] qla2xxx 0000:24:00.0: LOOP DOWN detected (2 3 0). [ 459.165399] rport-6:0-1: blocked FC remote port time out: removing target and saving binding [ 459.165875] rport-6:0-0: blocked FC remote port time out: removing target and saving binding [ 459.166496] device-mapper: multipath: Failing path 8:112. [ 459.166573] device-mapper: multipath: Failing path 8:128. [ 459.166765] device-mapper: multipath: Failing path 8:144. [ 459.166831] device-mapper: multipath: Failing path 8:160. [ 459.166914] device-mapper: multipath: Failing path 8:176. [ 459.166965] device-mapper: multipath: Failing path 8:192. [ 459.219341] sd 6:0:1:0: [sdk] Synchronizing SCSI cache [ 459.219374] sd 6:0:1:0: [sdk] Result: hostbyte=DID_NO_CONNECT driverbyte=DRIVER_OK [ 459.220728] device-mapper: multipath: Failing path 8:112. [ 459.299111] sd 6:0:1:1: [sdl] Synchronizing SCSI cache [ 459.299138] sd 6:0:1:1: [sdl] Result: hostbyte=DID_NO_CONNECT driverbyte=DRIVER_OK [ 459.300305] device-mapper: multipath: Failing path 8:128. [ 459.378913] sd 6:0:1:2: [sdm] Synchronizing SCSI cache [ 459.378943] sd 6:0:1:2: [sdm] Result: hostbyte=DID_NO_CONNECT driverbyte=DRIVER_OK [ 459.381678] device-mapper: multipath: Failing path 8:144. [ 459.430852] sd 6:0:0:1: [sdi] Unhandled error code [ 459.430854] sd 6:0:0:1: [sdi] Result: hostbyte=DID_NO_CONNECT driverbyte=DRIVER_OK [ 459.430857] sd 6:0:0:1: [sdi] CDB: Read(10): 28 00 00 7f ff 80 00 00 08 00 [ 459.430862] end_request: I/O error, dev sdi, sector 8388480 [ 459.431165] sd 6:0:0:1: [sdi] Unhandled error code [ 459.431166] sd 6:0:0:1: [sdi] Result: hostbyte=DID_NO_CONNECT driverbyte=DRIVER_OK [ 459.431168] sd 6:0:0:1: [sdi] CDB: Read(10): 28 00 00 7f ff f0 00 00 08 00 [ 459.431173] end_request: I/O error, dev sdi, sector 8388592 [ 459.431473] sd 6:0:0:1: [sdi] Unhandled error code [ 459.431475] sd 6:0:0:1: [sdi] Result: hostbyte=DID_NO_CONNECT driverbyte=DRIVER_OK [ 459.431477] sd 6:0:0:1: [sdi] CDB: Read(10): 28 00 00 00 00 00 00 00 08 00 [ 459.431482] end_request: I/O error, dev sdi, sector 0 [ 459.431767] sd 6:0:0:1: [sdi] Unhandled error code [ 459.431770] sd 6:0:0:1: [sdi] Result: hostbyte=DID_NO_CONNECT driverbyte=DRIVER_OK [ 459.431772] sd 6:0:0:1: [sdi] CDB: Read(10): 28 00 00 00 00 08 00 00 08 00 [ 459.431776] end_request: I/O error, dev sdi, sector 8 [ 459.432072] sd 6:0:0:1: [sdi] Unhandled error code [ 459.432073] sd 6:0:0:1: [sdi] Result: hostbyte=DID_NO_CONNECT driverbyte=DRIVER_OK [ 459.432075] sd 6:0:0:1: [sdi] CDB: Read(10): 28 00 00 00 00 00 00 00 08 00 [ 459.432081] end_request: I/O error, dev sdi, sector 0 [ 459.432397] sd 6:0:0:2: [sdj] Unhandled error code [ 459.432399] sd 6:0:0:2: [sdj] Result: hostbyte=DID_NO_CONNECT driverbyte=DRIVER_OK [ 459.432401] sd 6:0:0:2: [sdj] CDB: Read(10): 28 00 00 7f ff 80 00 00 08 00 [ 459.432406] end_request: I/O error, dev sdj, sector 8388480 [ 459.432712] sd 6:0:0:2: [sdj] Unhandled error code [ 459.432714] sd 6:0:0:2: [sdj] Result: hostbyte=DID_NO_CONNECT driverbyte=DRIVER_OK [ 459.432717] sd 6:0:0:2: [sdj] CDB: Read(10): 28 00 00 7f ff f0 00 00 08 00 [ 459.432723] end_request: I/O error, dev sdj, sector 8388592 [ 459.433034] sd 6:0:0:2: [sdj] Unhandled error code [ 459.433036] sd 6:0:0:2: [sdj] Result: hostbyte=DID_NO_CONNECT driverbyte=DRIVER_OK [ 459.433039] sd 6:0:0:2: [sdj] CDB: Read(10): 28 00 00 00 00 00 00 00 08 00 [ 459.433045] end_request: I/O error, dev sdj, sector 0 [ 459.433345] sd 6:0:0:2: [sdj] Unhandled error code [ 459.433347] sd 6:0:0:2: [sdj] Result: hostbyte=DID_NO_CONNECT driverbyte=DRIVER_OK [ 459.433350] sd 6:0:0:2: [sdj] CDB: Read(10): 28 00 00 00 00 08 00 00 08 00 [ 459.433356] end_request: I/O error, dev sdj, sector 8 [ 459.433672] sd 6:0:0:2: [sdj] Unhandled error code [ 459.433674] sd 6:0:0:2: [sdj] Result: hostbyte=DID_NO_CONNECT driverbyte=DRIVER_OK [ 459.433677] sd 6:0:0:2: [sdj] CDB: Read(10): 28 00 00 00 00 00 00 00 08 00 [ 459.433684] end_request: I/O error, dev sdj, sector 0 [ 459.456208] sd 6:0:0:0: [sdh] Synchronizing SCSI cache [ 459.456236] sd 6:0:0:0: [sdh] Result: hostbyte=DID_NO_CONNECT driverbyte=DRIVER_OK [ 459.465583] sd 6:0:0:2: [sdj] Unhandled error code [ 459.465585] sd 6:0:0:2: [sdj] Result: hostbyte=DID_NO_CONNECT driverbyte=DRIVER_OK [ 459.465588] sd 6:0:0:2: [sdj] CDB: Read(10): 28 00 00 00 00 00 00 00 08 00 [ 459.465593] end_request: I/O error, dev sdj, sector 0 [ 459.548504] sd 6:0:0:1: [sdi] Synchronizing SCSI cache [ 459.548540] sd 6:0:0:1: [sdi] Result: hostbyte=DID_NO_CONNECT driverbyte=DRIVER_OK [ 459.625817] sd 6:0:0:2: [sdj] Synchronizing SCSI cache [ 459.625846] sd 6:0:0:2: [sdj] Result: hostbyte=DID_NO_CONNECT driverbyte=DRIVER_OK [ 464.012300] I/O error in filesystem ("dm-4") meta-data dev dm-4 block 0x4c498e0 ("xfs_trans_read_buf") error 5 buf count 4096 [ 464.012801] I/O error in filesystem ("dm-4") meta-data dev dm-4 block 0x4c498e0 ("xfs_trans_read_buf") error 5 buf count 4096 -- You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to multipath-tools in Ubuntu. https://bugs.launchpad.net/bugs/1020436 Title: Cannot read superblock after FC multipath failover To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/multipath-tools/+bug/1020436/+subscriptions -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs