Comment # 15 on bug 949796 from Bruno Pesavento

(In reply to Thomas Blume from comment #12)
> (In reply to Dr. Werner Fink from comment #11)
> > (In reply to Josef Reidinger from comment #9)
> > 
> > Sorry, but my crystal ball is currently beamless :)
> > Please be more specific
> > 
> > AFAICS from a search the bug #909561 and  do passing mentioned wwn
> > only bug #913515 seems to have the simliar problem and no feedback
> 
> I'd blame these rules from /usr/lib/udev/rules.d/55-scsi-sg3_id.rules:
> 
> # ID_WWN compat mapping
> ENV{SCSI_IDENT_LUN_NAA_REGEXT}=="?*", ENV{ID_WWN}!="?*",
> ENV{ID_WWN}="0x$env{SCSI_IDENT_LUN_NAA_REGEXT}"
> ENV{SCSI_IDENT_LUN_NAA_REG}=="?*", ENV{ID_WWN}!="?*",
> ENV{ID_WWN}="0x$env{SCSI_IDENT_LUN_NAA_REG}"
> ENV{SCSI_IDENT_LUN_NAA_EXT}=="?*", ENV{ID_WWN}!="?*",
> ENV{ID_WWN}="0x$env{SCSI_IDENT_LUN_NAA_EXT}"
> ENV{SCSI_IDENT_LUN_NAA_LOCAL}=="?*", ENV{ID_WWN}!="?*",
> ENV{ID_WWN}="0x$env{SCSI_IDENT_LUN_NAA_LOCAL}"
> ENV{SCSI_IDENT_LUN_NAA_REGEXT}=="?*", ENV{ID_WWN_WITH_EXTENSION}!="?*",
> ENV{ID_WWN_WITH_EXTENSION}="0x$env{SCSI_IDENT_LUN_NAA_REGEXT}"
> ENV{SCSI_IDENT_LUN_NAA_EXT}=="?*", ENV{ID_WWN_WITH_EXTENSION}!="?*",
> ENV{ID_WWN_WITH_EXTENSION}="0x$env{SCSI_IDENT_LUN_NAA_EXT}"
> 
> A test shows that the above SCSI_IDENT_LUN_NAA* information are filled via:
> 
> /usr/bin/sg_inq --export --page=di /dev/sdX
> 
> (X is the letter of the disc).
> 
> Later ID_WWN is used in 60-persistent-storage.rules to create the symlinks.
> 
> Can you provide the output of:
> 
> /usr/bin/sg_inq --export --page=di /dev/sda
> 
> and:
> 
> udevadm info -e
> 
> ?

I double checked and sg3_utils 1.41-1.1 was installed on 20150725 at 20:56:24.
The last correct wwn-* entries in the Bootloader update log are marked "Jul 25
20:16".
Maybe those entries were the last ones made using the old version?
And when the new version was first called the problem appeared?
If so, the bug might hide in the updated 55-scsi-sg3_id.rules or
58-scsi-sg3_symlink.rules