Ubuntu
multipath-tools package

  1. Trusty (14.04)
  2. Bug #585027
  3. Activity log

Activity log for bug #585027

Date Who What changed Old value New value Message
2010-05-24 16:26:38 Nigel Jones bug added bug
2010-05-24 16:27:10 Nigel Jones description Binary package hint: multipath-tools Environment: njones@fantail:~$ lsb_release -rd Description: Ubuntu 10.04 LTS Release: 10.04 njones@fantail:~$ apt-cache policy multipath-tools multipath-tools: Installed: 0.4.8-14ubuntu4 Candidate: 0.4.8-14ubuntu4 Version table: *** 0.4.8-14ubuntu4 0 500 http://nz.archive.ubuntu.com/ubuntu/ lucid/main Packages 100 /var/lib/dpkg/status Issue: While reproducing https://bugs.launchpad.net/ubuntu/+source/libvirt/+bug/571093 both myself and Dustin Kirkland encountered an apparent race condition in multipath and dmsetup. We were attempting variants of 'while true; do sudo multipath -F; sudo multipath -v4 ; done' to create a set of udev add/remove events and noticed that shortly after starting, no output appeared within the 'udevadm monitor' command. We observed that the output from a: multipath -v4 was similar to: root@fantail:~# multipath -v4 Discover device /sys/block/ram0 ram0: device node name blacklisted Discover device /sys/block/ram1 ram1: device node name blacklisted Discover device /sys/block/ram2 ram2: device node name blacklisted Discover device /sys/block/ram3 ram3: device node name blacklisted Discover device /sys/block/ram4 ram4: device node name blacklisted Discover device /sys/block/ram5 ram5: device node name blacklisted Discover device /sys/block/ram6 ram6: device node name blacklisted Discover device /sys/block/ram7 ram7: device node name blacklisted Discover device /sys/block/ram8 ram8: device node name blacklisted Discover device /sys/block/ram9 ram9: device node name blacklisted Discover device /sys/block/ram10 ram10: device node name blacklisted Discover device /sys/block/ram11 ram11: device node name blacklisted Discover device /sys/block/ram12 ram12: device node name blacklisted Discover device /sys/block/ram13 ram13: device node name blacklisted Discover device /sys/block/ram14 ram14: device node name blacklisted Discover device /sys/block/ram15 ram15: device node name blacklisted Discover device /sys/block/loop0 loop0: device node name blacklisted Discover device /sys/block/loop1 loop1: device node name blacklisted Discover device /sys/block/loop2 loop2: device node name blacklisted Discover device /sys/block/loop3 loop3: device node name blacklisted Discover device /sys/block/loop4 loop4: device node name blacklisted Discover device /sys/block/loop5 loop5: device node name blacklisted Discover device /sys/block/loop6 loop6: device node name blacklisted Discover device /sys/block/loop7 loop7: device node name blacklisted Discover device /sys/block/sda sda: not found in pathvec sda: mask = 0x1f sda: dev_t = 8:0 sda: size = 625142448 sda: subsystem = scsi sda: vendor = ATA sda: product = WDC WD3200AAKS-0 sda: rev = 12.0 sda: h:b:t:l = 0:0:0:0 sda: serial = WD-WCAS70000070 sda: getprio = NULL (internal default) sda: prio = 1 sda: getuid = /lib/udev/scsi_id -g -u -d /dev/%n (config file default) sda: uid = 1ATA_WDC_WD3200AAKS-00TMA0_WD-WCAS70000070 (callout) Discover device /sys/block/sr0 sr0: device node name blacklisted Discover device /sys/block/sdb sdb: not found in pathvec sdb: mask = 0x1f sdb: dev_t = 8:16 sdb: size = 15679488 sdb: subsystem = scsi sdb: vendor = Kingston sdb: product = DataTraveler G2 sdb: rev = PMAP sdb: h:b:t:l = 6:0:0:0 sdb: serial =  sdb: getprio = NULL (internal default) sdb: prio = 1 sdb: getuid = /lib/udev/scsi_id -g -u -d /dev/%n (config file default) error calling out /lib/udev/scsi_id -g -u -d /dev/sdb Discover device /sys/block/sdc sdc: not found in pathvec sdc: mask = 0x1f sdc: dev_t = 8:32 sdc: size = 41943040 sdc: subsystem = scsi sdc: vendor = IET sdc: product = VIRTUAL-DISK sdc: rev = 0 sdc: h:b:t:l = 7:0:0:0 sdc: serial = sdc: getprio = NULL (internal default) sdc: prio = 1 sdc: getuid = /lib/udev/scsi_id -g -u -d /dev/%n (config file default) error calling out /lib/udev/scsi_id -g -u -d /dev/sdc Discover device /sys/block/dm-0 dm-0: device node name blacklisted Discovery status 0 ===== paths list ===== uuid hcil dev dev_t pri dm_st chk_st 1ATA_WDC_WD3200AAKS-00TMA0_WD-WCAS70000070 0:0:0:0 sda 8:0 1 [undef][undef 6:0:0:0 sdb 8:16 1 [undef][undef 7:0:0:0 sdc 8:32 1 [undef][undef sda: ownership set to 1ATA_WDC_WD3200AAKS-00TMA0_WD-WCAS70000070 sda: not found in pathvec sda: mask = 0xc sda: path checker = directio (config file default) directio: called for 800 directio: called in synchronous mode directio: starting new request directio: async io getevents returns 1 (errno=No such file or directory) directio: io finished 4096/0 sda: state = 2 sda: prio = 1 1ATA_WDC_WD3200AAKS-00TMA0_WD-WCAS70000070: pgfailover = -1 (internal default) 1ATA_WDC_WD3200AAKS-00TMA0_WD-WCAS70000070: pgpolicy = failover (internal default) 1ATA_WDC_WD3200AAKS-00TMA0_WD-WCAS70000070: selector = round-robin 0 (internal default) 1ATA_WDC_WD3200AAKS-00TMA0_WD-WCAS70000070: features = 0 (internal default) 1ATA_WDC_WD3200AAKS-00TMA0_WD-WCAS70000070: hwhandler = 0 (internal default) 1ATA_WDC_WD3200AAKS-00TMA0_WD-WCAS70000070: rr_weight = 1 (internal default) 1ATA_WDC_WD3200AAKS-00TMA0_WD-WCAS70000070: minio = 1000 (config file default) 1ATA_WDC_WD3200AAKS-00TMA0_WD-WCAS70000070: no_path_retry = NONE (internal default) pg_timeout = NONE (internal default) 1ATA_WDC_WD3200AAKS-00TMA0_WD-WCAS70000070: set ACT_CREATE (map does not exist) 1ATA_WDC_WD3200AAKS-00TMA0_WD-WCAS70000070: map already present 1ATA_WDC_WD3200AAKS-00TMA0_WD-WCAS70000070: domap (0) failure for create/reload map 1ATA_WDC_WD3200AAKS-00TMA0_WD-WCAS70000070: remove multipath map sda: orphaned And a device was left behind in /dev/mapper: njones@fantail:~$ ll /dev/mapper/ total 0 drwxr-xr-x 2 root root 80 2010-05-25 04:25 ./ drwxr-xr-x 18 root root 4080 2010-05-25 04:25 ../ brw-rw---- 1 root disk 252, 0 2010-05-25 04:25 1ATA_WDC_WD3200AAKS-00TMA0_WD-WCAS70000070 crw-rw---- 1 root root 10, 59 2010-05-22 10:35 control $ sudo dmsetup ls 1ATA_WDC_WD3200AAKS-00TMA0_WD-WCAS70000070 (252, 0) We had to perform 'dmsetup remove <id>' to clear the 'map already present' message. While I admit that this is very a very specific case, it is still a race condition and does warrant a bug report. Binary package hint: multipath-tools Environment: njones@fantail:~$ lsb_release -rd Description: Ubuntu 10.04 LTS Release: 10.04 njones@fantail:~$ apt-cache policy multipath-tools multipath-tools:   Installed: 0.4.8-14ubuntu4   Candidate: 0.4.8-14ubuntu4   Version table:  *** 0.4.8-14ubuntu4 0         500 http://nz.archive.ubuntu.com/ubuntu/ lucid/main Packages         100 /var/lib/dpkg/status Issue: While reproducing https://bugs.launchpad.net/ubuntu/+source/libvirt/+bug/571093 both myself and Dustin Kirkland encountered an apparent race condition in multipath and dmsetup. We were attempting variants of 'while true; do sudo multipath -F; sudo multipath -v4 ; done' to create a set of udev add/remove events and noticed that shortly after starting, no output appeared within the 'udevadm monitor' command. We observed that the output from a: multipath -v4 was similar to: root@fantail:~# multipath -v4 Discover device /sys/block/ram0 ram0: device node name blacklisted Discover device /sys/block/ram1 ram1: device node name blacklisted Discover device /sys/block/ram2 ram2: device node name blacklisted Discover device /sys/block/ram3 ram3: device node name blacklisted Discover device /sys/block/ram4 ram4: device node name blacklisted Discover device /sys/block/ram5 ram5: device node name blacklisted Discover device /sys/block/ram6 ram6: device node name blacklisted Discover device /sys/block/ram7 ram7: device node name blacklisted Discover device /sys/block/ram8 ram8: device node name blacklisted Discover device /sys/block/ram9 ram9: device node name blacklisted Discover device /sys/block/ram10 ram10: device node name blacklisted Discover device /sys/block/ram11 ram11: device node name blacklisted Discover device /sys/block/ram12 ram12: device node name blacklisted Discover device /sys/block/ram13 ram13: device node name blacklisted Discover device /sys/block/ram14 ram14: device node name blacklisted Discover device /sys/block/ram15 ram15: device node name blacklisted Discover device /sys/block/loop0 loop0: device node name blacklisted Discover device /sys/block/loop1 loop1: device node name blacklisted Discover device /sys/block/loop2 loop2: device node name blacklisted Discover device /sys/block/loop3 loop3: device node name blacklisted Discover device /sys/block/loop4 loop4: device node name blacklisted Discover device /sys/block/loop5 loop5: device node name blacklisted Discover device /sys/block/loop6 loop6: device node name blacklisted Discover device /sys/block/loop7 loop7: device node name blacklisted Discover device /sys/block/sda sda: not found in pathvec sda: mask = 0x1f sda: dev_t = 8:0 sda: size = 625142448 sda: subsystem = scsi sda: vendor = ATA sda: product = WDC WD3200AAKS-0 sda: rev = 12.0 sda: h:b:t:l = 0:0:0:0 sda: serial = WD-WCAS70000070 sda: getprio = NULL (internal default) sda: prio = 1 sda: getuid = /lib/udev/scsi_id -g -u -d /dev/%n (config file default) sda: uid = 1ATA_WDC_WD3200AAKS-00TMA0_WD-WCAS70000070 (callout) Discover device /sys/block/sr0 sr0: device node name blacklisted Discover device /sys/block/sdb sdb: not found in pathvec sdb: mask = 0x1f sdb: dev_t = 8:16 sdb: size = 15679488 sdb: subsystem = scsi sdb: vendor = Kingston sdb: product = DataTraveler G2 sdb: rev = PMAP sdb: h:b:t:l = 6:0:0:0 sdb: serial = sdb: getprio = NULL (internal default) sdb: prio = 1 sdb: getuid = /lib/udev/scsi_id -g -u -d /dev/%n (config file default) error calling out /lib/udev/scsi_id -g -u -d /dev/sdb Discover device /sys/block/sdc sdc: not found in pathvec sdc: mask = 0x1f sdc: dev_t = 8:32 sdc: size = 41943040 sdc: subsystem = scsi sdc: vendor = IET sdc: product = VIRTUAL-DISK sdc: rev = 0 sdc: h:b:t:l = 7:0:0:0 sdc: serial = sdc: getprio = NULL (internal default) sdc: prio = 1 sdc: getuid = /lib/udev/scsi_id -g -u -d /dev/%n (config file default) error calling out /lib/udev/scsi_id -g -u -d /dev/sdc Discover device /sys/block/dm-0 dm-0: device node name blacklisted Discovery status 0 ===== paths list ===== uuid hcil dev dev_t pri dm_st chk_st 1ATA_WDC_WD3200AAKS-00TMA0_WD-WCAS70000070 0:0:0:0 sda 8:0 1 [undef][undef                                            6:0:0:0 sdb 8:16 1 [undef][undef                                            7:0:0:0 sdc 8:32 1 [undef][undef sda: ownership set to 1ATA_WDC_WD3200AAKS-00TMA0_WD-WCAS70000070 sda: not found in pathvec sda: mask = 0xc sda: path checker = directio (config file default) directio: called for 800 directio: called in synchronous mode directio: starting new request directio: async io getevents returns 1 (errno=No such file or directory) directio: io finished 4096/0 sda: state = 2 sda: prio = 1 1ATA_WDC_WD3200AAKS-00TMA0_WD-WCAS70000070: pgfailover = -1 (internal default) 1ATA_WDC_WD3200AAKS-00TMA0_WD-WCAS70000070: pgpolicy = failover (internal default) 1ATA_WDC_WD3200AAKS-00TMA0_WD-WCAS70000070: selector = round-robin 0 (internal default) 1ATA_WDC_WD3200AAKS-00TMA0_WD-WCAS70000070: features = 0 (internal default) 1ATA_WDC_WD3200AAKS-00TMA0_WD-WCAS70000070: hwhandler = 0 (internal default) 1ATA_WDC_WD3200AAKS-00TMA0_WD-WCAS70000070: rr_weight = 1 (internal default) 1ATA_WDC_WD3200AAKS-00TMA0_WD-WCAS70000070: minio = 1000 (config file default) 1ATA_WDC_WD3200AAKS-00TMA0_WD-WCAS70000070: no_path_retry = NONE (internal default) pg_timeout = NONE (internal default) 1ATA_WDC_WD3200AAKS-00TMA0_WD-WCAS70000070: set ACT_CREATE (map does not exist) 1ATA_WDC_WD3200AAKS-00TMA0_WD-WCAS70000070: map already present 1ATA_WDC_WD3200AAKS-00TMA0_WD-WCAS70000070: domap (0) failure for create/reload map 1ATA_WDC_WD3200AAKS-00TMA0_WD-WCAS70000070: remove multipath map sda: orphaned And a device was left behind in /dev/mapper: njones@fantail:~$ ll /dev/mapper/ total 0 drwxr-xr-x 2 root root 80 2010-05-25 04:25 ./ drwxr-xr-x 18 root root 4080 2010-05-25 04:25 ../ brw-rw---- 1 root disk 252, 0 2010-05-25 04:25 1ATA_WDC_WD3200AAKS-00TMA0_WD-WCAS70000070 crw-rw---- 1 root root 10, 59 2010-05-22 10:35 control $ sudo dmsetup ls 1ATA_WDC_WD3200AAKS-00TMA0_WD-WCAS70000070 (252, 0) We had to perform 'dmsetup remove <id>' to clear the 'map already present' message. While I admit that this is a very specific case, it is still a race condition and does warrant a bug report.
2010-05-26 11:58:24 Chuck Short multipath-tools (Ubuntu): status New Incomplete
2010-05-26 12:17:35 Nigel Jones multipath-tools (Ubuntu): status Incomplete New
2010-05-31 12:49:21 Chuck Short multipath-tools (Ubuntu): importance Undecided Medium
2010-05-31 12:49:21 Chuck Short multipath-tools (Ubuntu): status New Triaged
2011-03-17 17:50:48 Phillip Susi bug added subscriber Phillip Susi
2012-07-09 15:31:08 Peter Petrakis multipath-tools (Ubuntu): status Triaged Invalid
2012-07-19 15:39:05 Peter Petrakis multipath-tools (Ubuntu): status Invalid Confirmed
2015-07-13 16:22:46 Mathieu Trudel-Lapierre multipath-tools (Ubuntu): status Confirmed Fix Released
2015-07-13 16:22:51 Mathieu Trudel-Lapierre nominated for series Ubuntu Trusty
2015-07-13 16:22:51 Mathieu Trudel-Lapierre bug task added multipath-tools (Ubuntu Trusty)
2015-07-13 16:22:57 Mathieu Trudel-Lapierre multipath-tools (Ubuntu Trusty): status New Triaged
2015-07-13 16:23:00 Mathieu Trudel-Lapierre multipath-tools (Ubuntu Trusty): importance Undecided Medium
2015-07-13 16:23:03 Mathieu Trudel-Lapierre multipath-tools (Ubuntu Trusty): assignee Mathieu Trudel-Lapierre (mathieu-tl)