Comment 9 for bug 1891202

Hi Christian, sorry for the late reply.

After applying the PPA, multipath no longer hangs when attaching a SolidFire volumes. The problem with long iscsi target names seems to be fixed now.

See the output bellow:

stack@60-sfernand-development:~$ sudo multipath -v6 -ll
Oct 13 20:22:27 | loading //lib/multipath/libchecktur.so checker
Oct 13 20:22:27 | loading //lib/multipath/libprioconst.so prioritizer
Oct 13 20:22:27 | Discover device /sys/devices/pci0000:00/0000:00:06.0/virtio3/block/vda
Oct 13 20:22:27 | vda: dev not found in pathvec
Oct 13 20:22:27 | 252:0: dev_t not found in pathvec
Oct 13 20:22:27 | vda: blacklisted, udev property missing
Oct 13 20:22:27 | Discover device /sys/devices/pci0000:00/0000:00:06.0/virtio3/block/vda/vda1
Oct 13 20:22:27 | Discover device /sys/devices/pci0000:00/0000:00:06.0/virtio3/block/vda/vda14
Oct 13 20:22:27 | Discover device /sys/devices/pci0000:00/0000:00:06.0/virtio3/block/vda/vda15
Oct 13 20:22:27 | Discover device /sys/devices/platform/host4/session228/target4:0:0/4:0:0:0/block/sdc
Oct 13 20:22:27 | sdc: dev not found in pathvec
Oct 13 20:22:27 | 8:32: dev_t not found in pathvec
Oct 13 20:22:27 | sdc: udev property ID_WWN whitelisted
Oct 13 20:22:27 | sdc: mask = 0x7
Oct 13 20:22:27 | sdc: dev_t = 8:32
Oct 13 20:22:27 | open '/sys/devices/platform/host4/session228/target4:0:0/4:0:0:0/block/sdc/size'
Oct 13 20:22:27 | sdc: size = 10485760
Oct 13 20:22:27 | sdc: vendor = SolidFir
Oct 13 20:22:27 | sdc: product = SSD SAN
Oct 13 20:22:27 | sdc: rev = 0001
Oct 13 20:22:27 | sdc: h:b:t:l = 4:0:0:0
Oct 13 20:22:27 | sdc: tgt_node_name = iqn.2010-01.com.solidfire:xpsi.uuid-e100a0c6-f8d6-4927-b6ea-213248083965.3409
Oct 13 20:22:27 | open '/sys/devices/platform/host4/session228/target4:0:0/4:0:0:0/state'
Oct 13 20:22:27 | sdc: path state = running
Oct 13 20:22:27 | sdc: 1018 cyl, 166 heads, 62 sectors/track, start at 0
Oct 13 20:22:27 | open '/sys/devices/platform/host4/session228/target4:0:0/4:0:0:0/vpd_pg80'
Oct 13 20:22:27 | sdc: serial = 7870736900000d51f47acc0100000000
Oct 13 20:22:27 | sdc: get_state
Oct 13 20:22:27 | sdc: detect_checker = yes (setting: storage device configuration)
Oct 13 20:22:27 | failed to issue vpd inquiry for pgc9
Oct 13 20:22:27 | sdc: path_checker = tur (setting: multipath internal)
Oct 13 20:22:27 | sdc: checker timeout = 30 s (setting: multipath internal)
Oct 13 20:22:27 | sdc: tur state = up
Oct 13 20:22:27 | Discover device /sys/devices/virtual/block/loop0
Oct 13 20:22:27 | loop0: dev not found in pathvec
Oct 13 20:22:27 | 7:0: dev_t not found in pathvec
Oct 13 20:22:27 | loop0: blacklisted, udev property missing
Oct 13 20:22:27 | Discover device /sys/devices/virtual/block/loop1
Oct 13 20:22:27 | loop1: dev not found in pathvec
Oct 13 20:22:27 | 7:1: dev_t not found in pathvec
Oct 13 20:22:27 | loop1: blacklisted, udev property missing
Oct 13 20:22:27 | Discover device /sys/devices/virtual/block/loop2
Oct 13 20:22:27 | loop2: dev not found in pathvec
Oct 13 20:22:27 | 7:2: dev_t not found in pathvec
Oct 13 20:22:27 | loop2: blacklisted, udev property missing
Oct 13 20:22:27 | Discover device /sys/devices/virtual/block/loop3
Oct 13 20:22:27 | loop3: dev not found in pathvec
Oct 13 20:22:27 | 7:3: dev_t not found in pathvec
Oct 13 20:22:27 | loop3: blacklisted, udev property missing
Oct 13 20:22:27 | Discover device /sys/devices/virtual/block/loop4
Oct 13 20:22:27 | loop4: dev not found in pathvec
Oct 13 20:22:27 | 7:4: dev_t not found in pathvec
Oct 13 20:22:27 | loop4: blacklisted, udev property missing
Oct 13 20:22:27 | Discover device /sys/devices/virtual/block/loop5
Oct 13 20:22:27 | loop5: dev not found in pathvec
Oct 13 20:22:27 | 7:5: dev_t not found in pathvec
Oct 13 20:22:27 | loop5: blacklisted, udev property missing
Oct 13 20:22:27 | Discover device /sys/devices/virtual/block/loop6
Oct 13 20:22:27 | loop6: dev not found in pathvec
Oct 13 20:22:27 | 7:6: dev_t not found in pathvec
Oct 13 20:22:27 | loop6: blacklisted, udev property missing
Oct 13 20:22:27 | Discover device /sys/devices/virtual/block/loop7
Oct 13 20:22:27 | loop7: dev not found in pathvec
Oct 13 20:22:27 | 7:7: dev_t not found in pathvec
Oct 13 20:22:27 | loop7: blacklisted, udev property missing
Oct 13 20:22:27 | Discovered 1/10 paths
===== paths list =====
uuid hcil dev dev_t pri dm_st chk_st vend/prod/rev dev_st
     4:0:0:0 sdc 8:32 -1 undef undef SolidFir,SSD SAN unknown
Oct 13 20:22:27 | libdevmapper version 1.02.145 (2017-11-03)
Oct 13 20:22:27 | DM multipath kernel driver v1.13.0
Oct 13 20:22:27 | tur checker refcount 1
Oct 13 20:22:27 | unloading const prioritizer
Oct 13 20:22:27 | unloading tur checker