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Snider, Tim

2007-Jan-24 09:34 UTC

[Lustre-devel] lmd_parse complains of missing option - causes OST Mount command to fail

Trying to get OST running in embedded environment:
mkfs.lustre & tunefs.lustre commands (seem to) work.
MDT/MGS up & running on ''normal'' x86 platform - different
server.

mount command fails - looks like parameters aren''t passed to lmd_parse.
An added printk to display options passed to routine showed a NULL
string was being passed to the routine.

I corrected an error yesterday in mkfs_lustre.c return value of
getopt_long call was being assigned to a char var not long. Caused the
gcc cross compiler to optimize out the termination condition since a
char can never equal EOF (-1). 

output below varied on seems to indicate options are position sensitive.
console output follows - my printk debug is included - option string
passed to lmd_parse is enclosed by >> <<:

I''ll start going thru the calls above lmd_parse. 

Ideas are appreciated.

root@:/sbin# mount -vt lustre /dev/sdb1 /mnt/test/ost0
	Lustre: OBD class driver, info@clusterfs.com
      	  Lustre Version: 1.5.95
	        Build Version:
1.5.95-19691231180000-PRISTINE-.home.tsnider.linux-2.6.18.3-2.6.18-iop3.
1tsPrivate
	Lustre: Added LNI 172.22.14.65@tcp [8/256]
	Lustre: Accept secure, port 988
	Lustre: Lustre Client File System; info@clusterfs.com
	lmd_parse: options >><<
	lmd_parse out of loop: s1 - >><< s2: >><NULL><<
	mount: Mounting /dev/sdb1 on /mnt/test/ost0 failed: Invalid
argument

root@:/sbin# mount -t lustre /dev/sdb1 /mnt/test/ost0
	lmd_parse: options >><<
	lmd_parse out of loop: s1 - >><< s2: >><NULL><<
	LustreError: Can''t find the device name (need mount option
''device=...'')
	LustreError: Skipped 1 previous similar message
	LustreError: 1098:0:(obd_mount.c:1825:lmd_parse()) Bad mount
options
	LustreError: 1098:0:(obd_mount.c:1825:lmd_parse()) Skipped 1
previous similar message
	mount: Mounting /dev/sdb1 on /mnt/test/ost0 failed: Invalid
argument

root@:/sbin# mount -v -t lustre /dev/sdb1 /mnt/test/ost0
	lmd_parse: options >><<
	lmd_parse out of loop: s1 - >><< s2: >><NULL><<
	LustreError: Can''t find the device name (need mount option
''device=...'')
	LustreError: 1099:0:(obd_mount.c:1825:lmd_parse()) Bad mount
options
	mount: Mounting /dev/sdb1 on /mnt/test/ost0 failed: Invalid
argument

lctl dk output:
	root@:/sbin# armv5l-linux-lctl dk /tmpf
	Debug log: 22 lines, 22 kept, 0 dropped.
	root@:/sbin# cat /tmpf
	
00000400:02000000:0:222.238734:456:1071:0:(api-ni.c:1082:lnet_startup_ln
dnis()) Added LNI 172.22.14.65@tcp [8/256]
	
00000400:02000000:0:222.243674:172:1088:0:(acceptor.c:392:lnet_acceptor(
)) Accept secure, port 988
	
00000200:01200004:0:225.834116:560:1069:0:(obd_mount.c:1838:lustre_fill_
super()) VFS Op: sb 5d527e00
	
00000200:02020000:0:225.840546:628:1069:0:(obd_mount.c:1785:lmd_parse())
Can''t find the device name (need mount option
''device=...'')
	
00000200:00020000:0:225.840550:628:1069:0:(obd_mount.c:1825:lmd_parse())
Bad mount options
	
00000200:01000004:0:225.840555:620:1069:0:(obd_mount.c:1176:lustre_put_l
si()) put 5d527e00 1
	
00000200:01000004:0:225.840560:688:1069:0:(obd_mount.c:1134:lustre_free_
lsi()) Freeing lsi
	
00000200:01200004:0:647.929698:560:1098:0:(obd_mount.c:1838:lustre_fill_
super()) VFS Op: sb 5dd4de00
	
00000200:02020000:0:647.936135:628:1098:0:(obd_mount.c:1785:lmd_parse())
Can''t find the device name (need mount option
''device=...'')
	
00000200:00020000:0:647.946797:628:1098:0:(obd_mount.c:1825:lmd_parse())
Bad mount options
	
00000200:01000004:0:647.960511:620:1098:0:(obd_mount.c:1176:lustre_put_l
si()) put 5dd4de00 1
	
00000200:01000004:0:647.960517:688:1098:0:(obd_mount.c:1134:lustre_free_
lsi()) Freeing lsi
	
00000200:01200004:0:662.155539:560:1099:0:(obd_mount.c:1838:lustre_fill_
super()) VFS Op: sb 5dd4d600
	
00000200:02020000:0:662.161999:628:1099:0:(obd_mount.c:1785:lmd_parse())
Can''t find the device name (need mount option
''device=...'')
	
00000200:00020000:0:662.168409:628:1099:0:(obd_mount.c:1825:lmd_parse())
Bad mount options
	
00000200:01000004:0:662.174557:620:1099:0:(obd_mount.c:1176:lustre_put_l
si()) put 5dd4d600 1
	
00000200:01000004:0:662.174562:688:1099:0:(obd_mount.c:1134:lustre_free_
lsi()) Freeing lsi
	
00000200:01200004:0:703.114895:560:1103:0:(obd_mount.c:1838:lustre_fill_
super()) VFS Op: sb 5ebfa000
	
00000200:02020000:0:703.121363:628:1103:0:(obd_mount.c:1785:lmd_parse())
Can''t find the device name (need mount option
''device=...'')
	
00000200:00020000:0:703.127772:628:1103:0:(obd_mount.c:1825:lmd_parse())
Bad mount options
	
00000200:01000004:0:703.133928:620:1103:0:(obd_mount.c:1176:lustre_put_l
si()) put 5ebfa000 1
	
00000200:01000004:0:703.133933:688:1103:0:(obd_mount.c:1134:lustre_free_
lsi()) Freeing lsi

output from tunefs.lustre

root@:/sbin# armv5l-linux-tunefs.lustre /dev/sdb1
	checking for existing Lustre data
	found Lustre data
	Reading CONFIGS/mountdata

	   Read previous values:
	Target:     testfs-OSTffff
	Index:      unassigned
	Lustre FS:  testfs
	Mount type: ldiskfs
	Flags:      0x72
	              (OST needs_index first_time update )
	Persistent mount opts: errors=remount-ro,extents,mballoc
	Parameters: mgsnode=172.22.14.100@tcp mgsnode=172.22.14.100@tcp


	   Permanent disk data:
	Target:     testfs-OSTffff
	Index:      unassigned
	Lustre FS:  testfs
	Mount type: ldiskfs
	Flags:      0x72
	              (OST needs_index first_time update )
	Persistent mount opts: errors=remount-ro,extents,mballoc
	Parameters: mgsnode=172.22.14.100@tcp mgsnode=172.22.14.100@tcp

	kjournald starting.  Commit interval 5 seconds
	LDISKFS FS on sdb1, internal journal
	LDISKFS-fs: mounted filesystem with ordered data mode.
	Writing CONFIGS/mountdata
	root@:/sbin#

output from mkfs.lustre command:

root@:/sbin# mkfs.lustre --verbose --fsname=testfs --ost
--mgsnode=172.222.14.100@tcp /dev/sdb1
	Permanent disk data:
	Target:     testfs-OSTffff
	Index:      unassigned
	Lustre FS:  testfs
	Mount type: ldiskfs
	Flags:      0x72
	              (OST needs_index first_time update )
	Persistent mount opts: errors=remount-ro,extents,mballoc
	Parameters: mgsnode=172.22.14.100@tcp

	checking for existing Lustre data
	device size = 40959MB
	formatting backing filesystem ldiskfs on /dev/sdb1
	        target name  testfs-OSTffff
	        4k blocks     0
	        options        -J size=400 -i 16384 -I 256 -O dir_index
-F
	mkfs_cmd = mkfs.ext2 -j -b 4096 -L testfs-OSTffff  -J size=400
-i 16384 -I 256 -O dir_index -F /dev/sdb1
	cmd: mkfs.ext2 -j -b 4096 -L testfs-OSTffff  -J size=400 -i
16384 -I 256 -O dir_index -F /dev/sdb1
	kjournald starting.  Commit interval 5 seconds
	LDISKFS FS on sdb1, internal journal
	LDISKFS-fs: mounted filesystem with ordered data mode.
	Writing CONFIGS/mountdata
	root@:~#

Thanks,
Tim

Timothy Snider 
Storage Architect
Strategic Planning, Technology and Architecture

LSI Logic Corporation
3718 North Rock Road
Wichita, KS 67226
(316) 636-8736 
tim.snider@lsi.com <mailto:tim.snider@lsi.com>

Snider, Tim

2007-Jan-24 14:13 UTC

head link

[Lustre-devel] lmd_parse complains of missing option - causes OST Mount command to fail

Ok - some what better results. I thought the ''regular'' mount
cmd was
supposed to be used now and not mount.lustre.

mount.lustre does work better. 

Now there is some communication between OST and MDT/MGS. 

Looks like I have byte order / packing problems to look at.
MDT/MGS complains:
Message from syslogd@FedoraCore100 at Wed Jan 24 16:13:12 2007 ...
FedoraCore100 kernel: LustreError:
16610:0:(pack_generic.c:1270:lustre_msg_get_opc()) ASSERTION(0)
failed:incorrect message magic: 0bd00bd2

Message from syslogd@FedoraCore100 at Wed Jan 24 16:13:12 2007 ...
FedoraCore100 kernel: LustreError:
16610:0:(pack_generic.c:1270:lustre_msg_get_opc()) LBUG
Tim

-----Original Message-----
From: Nathaniel Rutman [mailto:nathan@clusterfs.com] 
Sent: Wednesday, January 24, 2007 2:38 PM
To: Snider, Tim
Subject: Re: [Lustre-devel] lmd_parse complains of missing option -
causes OST Mount command to fail

The options going to mount() from mount.lustre look right (optcopy)?

Snider, Tim wrote:> Trying to get OST running in embedded environment:
> mkfs.lustre & tunefs.lustre commands (seem to) work.
> MDT/MGS up & running on ''normal'' x86 platform -
different server.
>
> mount command fails - looks like parameters aren''t passed to
lmd_parse.> An added printk to display options passed to routine showed a NULL 
> string was being passed to the routine.
>
> I corrected an error yesterday in mkfs_lustre.c return value of 
> getopt_long call was being assigned to a char var not long. Caused the
> gcc cross compiler to optimize out the termination condition since a 
> char can never equal EOF (-1).
>
> output below varied on seems to indicate options are position
sensitive.> console output follows - my printk debug is included - option string 
> passed to lmd_parse is enclosed by >> <<:
>
> I''ll start going thru the calls above lmd_parse. 
>
> Ideas are appreciated.
>
> root@:/sbin# mount -vt lustre /dev/sdb1 /mnt/test/ost0
> 	Lustre: OBD class driver, info@clusterfs.com
>       	  Lustre Version: 1.5.95
> 	        Build Version:
>
1.5.95-19691231180000-PRISTINE-.home.tsnider.linux-2.6.18.3-2.6.18-iop3.> 1tsPrivate
> 	Lustre: Added LNI 172.22.14.65@tcp [8/256]
> 	Lustre: Accept secure, port 988
> 	Lustre: Lustre Client File System; info@clusterfs.com
> 	lmd_parse: options >><<
> 	lmd_parse out of loop: s1 - >><< s2:
>><NULL><<
> 	mount: Mounting /dev/sdb1 on /mnt/test/ost0 failed: Invalid
argument>
> root@:/sbin# mount -t lustre /dev/sdb1 /mnt/test/ost0
> 	lmd_parse: options >><<
> 	lmd_parse out of loop: s1 - >><< s2:
>><NULL><<
> 	LustreError: Can''t find the device name (need mount option
> ''device=...'')
> 	LustreError: Skipped 1 previous similar message
> 	LustreError: 1098:0:(obd_mount.c:1825:lmd_parse()) Bad mount
options> 	LustreError: 1098:0:(obd_mount.c:1825:lmd_parse()) Skipped 1
previous > similar message
> 	mount: Mounting /dev/sdb1 on /mnt/test/ost0 failed: Invalid
argument>
> root@:/sbin# mount -v -t lustre /dev/sdb1 /mnt/test/ost0
> 	lmd_parse: options >><<
> 	lmd_parse out of loop: s1 - >><< s2:
>><NULL><<
> 	LustreError: Can''t find the device name (need mount option
> ''device=...'')
> 	LustreError: 1099:0:(obd_mount.c:1825:lmd_parse()) Bad mount
options> 	mount: Mounting /dev/sdb1 on /mnt/test/ost0 failed: Invalid
argument>
> lctl dk output:
> 	root@:/sbin# armv5l-linux-lctl dk /tmpf
> 	Debug log: 22 lines, 22 kept, 0 dropped.
> 	root@:/sbin# cat /tmpf
> 	
> 00000400:02000000:0:222.238734:456:1071:0:(api-ni.c:1082:lnet_startup_
> ln
> dnis()) Added LNI 172.22.14.65@tcp [8/256]
> 	
> 00000400:02000000:0:222.243674:172:1088:0:(acceptor.c:392:lnet_accepto
> r(
> )) Accept secure, port 988
> 	
> 00000200:01200004:0:225.834116:560:1069:0:(obd_mount.c:1838:lustre_fil
> l_
> super()) VFS Op: sb 5d527e00
> 	
> 00000200:02020000:0:225.840546:628:1069:0:(obd_mount.c:1785:lmd_parse(
> )) Can''t find the device name (need mount option
''device=...'')
> 	
> 00000200:00020000:0:225.840550:628:1069:0:(obd_mount.c:1825:lmd_parse(
> ))
> Bad mount options
> 	
> 00000200:01000004:0:225.840555:620:1069:0:(obd_mount.c:1176:lustre_put
> _l
> si()) put 5d527e00 1
> 	
> 00000200:01000004:0:225.840560:688:1069:0:(obd_mount.c:1134:lustre_fre
> e_
> lsi()) Freeing lsi
> 	
> 00000200:01200004:0:647.929698:560:1098:0:(obd_mount.c:1838:lustre_fil
> l_
> super()) VFS Op: sb 5dd4de00
> 	
> 00000200:02020000:0:647.936135:628:1098:0:(obd_mount.c:1785:lmd_parse(
> )) Can''t find the device name (need mount option
''device=...'')
> 	
> 00000200:00020000:0:647.946797:628:1098:0:(obd_mount.c:1825:lmd_parse(
> ))
> Bad mount options
> 	
> 00000200:01000004:0:647.960511:620:1098:0:(obd_mount.c:1176:lustre_put
> _l
> si()) put 5dd4de00 1
> 	
> 00000200:01000004:0:647.960517:688:1098:0:(obd_mount.c:1134:lustre_fre
> e_
> lsi()) Freeing lsi
> 	
> 00000200:01200004:0:662.155539:560:1099:0:(obd_mount.c:1838:lustre_fil
> l_
> super()) VFS Op: sb 5dd4d600
> 	
> 00000200:02020000:0:662.161999:628:1099:0:(obd_mount.c:1785:lmd_parse(
> )) Can''t find the device name (need mount option
''device=...'')
> 	
> 00000200:00020000:0:662.168409:628:1099:0:(obd_mount.c:1825:lmd_parse(
> ))
> Bad mount options
> 	
> 00000200:01000004:0:662.174557:620:1099:0:(obd_mount.c:1176:lustre_put
> _l
> si()) put 5dd4d600 1
> 	
> 00000200:01000004:0:662.174562:688:1099:0:(obd_mount.c:1134:lustre_fre
> e_
> lsi()) Freeing lsi
> 	
> 00000200:01200004:0:703.114895:560:1103:0:(obd_mount.c:1838:lustre_fil
> l_
> super()) VFS Op: sb 5ebfa000
> 	
> 00000200:02020000:0:703.121363:628:1103:0:(obd_mount.c:1785:lmd_parse(
> )) Can''t find the device name (need mount option
''device=...'')
> 	
> 00000200:00020000:0:703.127772:628:1103:0:(obd_mount.c:1825:lmd_parse(
> ))
> Bad mount options
> 	
> 00000200:01000004:0:703.133928:620:1103:0:(obd_mount.c:1176:lustre_put
> _l
> si()) put 5ebfa000 1
> 	
> 00000200:01000004:0:703.133933:688:1103:0:(obd_mount.c:1134:lustre_fre
> e_
> lsi()) Freeing lsi
>
> output from tunefs.lustre
>
> root@:/sbin# armv5l-linux-tunefs.lustre /dev/sdb1
> 	checking for existing Lustre data
> 	found Lustre data
> 	Reading CONFIGS/mountdata
>
> 	   Read previous values:
> 	Target:     testfs-OSTffff
> 	Index:      unassigned
> 	Lustre FS:  testfs
> 	Mount type: ldiskfs
> 	Flags:      0x72
> 	              (OST needs_index first_time update )
> 	Persistent mount opts: errors=remount-ro,extents,mballoc
> 	Parameters: mgsnode=172.22.14.100@tcp mgsnode=172.22.14.100@tcp
>
>
> 	   Permanent disk data:
> 	Target:     testfs-OSTffff
> 	Index:      unassigned
> 	Lustre FS:  testfs
> 	Mount type: ldiskfs
> 	Flags:      0x72
> 	              (OST needs_index first_time update )
> 	Persistent mount opts: errors=remount-ro,extents,mballoc
> 	Parameters: mgsnode=172.22.14.100@tcp mgsnode=172.22.14.100@tcp
>
> 	kjournald starting.  Commit interval 5 seconds
> 	LDISKFS FS on sdb1, internal journal
> 	LDISKFS-fs: mounted filesystem with ordered data mode.
> 	Writing CONFIGS/mountdata
> 	root@:/sbin#
>
> output from mkfs.lustre command:
>
> root@:/sbin# mkfs.lustre --verbose --fsname=testfs --ost 
> --mgsnode=172.222.14.100@tcp /dev/sdb1
> 	Permanent disk data:
> 	Target:     testfs-OSTffff
> 	Index:      unassigned
> 	Lustre FS:  testfs
> 	Mount type: ldiskfs
> 	Flags:      0x72
> 	              (OST needs_index first_time update )
> 	Persistent mount opts: errors=remount-ro,extents,mballoc
> 	Parameters: mgsnode=172.22.14.100@tcp
>
> 	checking for existing Lustre data
> 	device size = 40959MB
> 	formatting backing filesystem ldiskfs on /dev/sdb1
> 	        target name  testfs-OSTffff
> 	        4k blocks     0
> 	        options        -J size=400 -i 16384 -I 256 -O dir_index
> -F
> 	mkfs_cmd = mkfs.ext2 -j -b 4096 -L testfs-OSTffff  -J size=400
-i > 16384 -I 256 -O dir_index -F /dev/sdb1
> 	cmd: mkfs.ext2 -j -b 4096 -L testfs-OSTffff  -J size=400 -i
> 16384 -I 256 -O dir_index -F /dev/sdb1
> 	kjournald starting.  Commit interval 5 seconds
> 	LDISKFS FS on sdb1, internal journal
> 	LDISKFS-fs: mounted filesystem with ordered data mode.
> 	Writing CONFIGS/mountdata
> 	root@:~#
>
> Thanks,
> Tim
>
> Timothy Snider
> Storage Architect
> Strategic Planning, Technology and Architecture
>
> LSI Logic Corporation
> 3718 North Rock Road
> Wichita, KS 67226
> (316) 636-8736
> tim.snider@lsi.com <mailto:tim.snider@lsi.com>
>
>
>
>
>
>
>
>
>
>
>
>
>
> _______________________________________________
> Lustre-devel mailing list
> Lustre-devel@clusterfs.com
> https://mail.clusterfs.com/mailman/listinfo/lustre-devel
>
>

Nathaniel Rutman

2007-Jan-24 14:53 UTC

head link

[Lustre-devel] lmd_parse complains of missing option - causes OST Mount command to fail

Snider, Tim wrote:> Ok - some what better results. I thought the ''regular''
mount cmd was
> supposed to be used now and not mount.lustre.
>
> mount.lustre does work better. 
>
>   /sbin/mount.lustre is called by the userspace mount(8) command normally. 
> Now there is some communication between OST and MDT/MGS. 
>
> Looks like I have byte order / packing problems to look at.
> MDT/MGS complains:
> Message from syslogd@FedoraCore100 at Wed Jan 24 16:13:12 2007 ...
> FedoraCore100 kernel: LustreError:
> 16610:0:(pack_generic.c:1270:lustre_msg_get_opc()) ASSERTION(0)
> failed:incorrect message magic: 0bd00bd2
>   That looks like the message magic for beta5.   Beta 7 changed this to  
0bd00bd3, so you must be running the same version everywhere.

Andreas Dilger

2007-Jan-24 16:27 UTC

head link

[Lustre-devel] lmd_parse complains of missing option - causes OST Mount command to fail

On Jan 24, 2007  09:33 -0700, Snider, Tim wrote:> I corrected an error yesterday in mkfs_lustre.c return value of
> getopt_long call was being assigned to a char var not long. Caused the
> gcc cross compiler to optimize out the termination condition since a
> char can never equal EOF (-1). 
Does your embedded arch use an unsigned char instead of a signed char
by default?  Please forward patches to the list so that they can be
discussed and incorporated upstream.

Cheers, Andreas
--
Andreas Dilger
Principal Software Engineer
Cluster File Systems, Inc.

Snider, Tim

2007-Jan-25 06:46 UTC

head link

[Lustre-devel] lmd_parse complains of missing option - causes OST Mount command to fail

Ok - I''m fairly new in this development environment. Do y''all
prefer
individual posts for each patch or one collective post & patch?
I''ve
made several modifications to get this to work.

-----Original Message-----
From: Andreas Dilger [mailto:adilger@clusterfs.com] 
Sent: Wednesday, January 24, 2007 5:28 PM
To: Snider, Tim
Cc: lustre-devel@clusterfs.com
Subject: Re: [Lustre-devel] lmd_parse complains of missing option -
causes OST Mount command to fail

On Jan 24, 2007  09:33 -0700, Snider, Tim wrote:> I corrected an error yesterday in mkfs_lustre.c return value of 
> getopt_long call was being assigned to a char var not long. Caused the
> gcc cross compiler to optimize out the termination condition since a 
> char can never equal EOF (-1).
Does your embedded arch use an unsigned char instead of a signed char by
default?  Please forward patches to the list so that they can be
discussed and incorporated upstream.

Cheers, Andreas
--
Andreas Dilger
Principal Software Engineer
Cluster File Systems, Inc.

Nathaniel Rutman

2007-Jan-25 14:09 UTC

head link

[Lustre-devel] lmd_parse complains of missing option - causes OST Mount command to fail

Either way.
FYI, we fixed the return value to getopt_long in beta7.  Should be an 
int, not a long,
according to the getopt_long man page.

Snider, Tim wrote:>  Ok - I''m fairly new in this development environment. Do
y''all prefer
> individual posts for each patch or one collective post & patch?
I''ve
> made several modifications to get this to work.
>
> -----Original Message-----
> From: Andreas Dilger [mailto:adilger@clusterfs.com] 
> Sent: Wednesday, January 24, 2007 5:28 PM
> To: Snider, Tim
> Cc: lustre-devel@clusterfs.com
> Subject: Re: [Lustre-devel] lmd_parse complains of missing option -
> causes OST Mount command to fail
>
> On Jan 24, 2007  09:33 -0700, Snider, Tim wrote:
>   
>> I corrected an error yesterday in mkfs_lustre.c return value of 
>> getopt_long call was being assigned to a char var not long. Caused the
>>     
>
>   
>> gcc cross compiler to optimize out the termination condition since a 
>> char can never equal EOF (-1).
>>     
>
> Does your embedded arch use an unsigned char instead of a signed char by
> default?  Please forward patches to the list so that they can be
> discussed and incorporated upstream.
>
> Cheers, Andreas
> --
> Andreas Dilger
> Principal Software Engineer
> Cluster File Systems, Inc.
>
> _______________________________________________
> Lustre-devel mailing list
> Lustre-devel@clusterfs.com
> https://mail.clusterfs.com/mailman/listinfo/lustre-devel
>
>

Lustre devel - Jan 2007 - lmd_parse complains of missing option - causes OST Mount command to fail

[Lustre-devel] lmd_parse complains of missing option - causes OST Mount command to fail

[Lustre-devel] lmd_parse complains of missing option - causes OST Mount command to fail

[Lustre-devel] lmd_parse complains of missing option - causes OST Mount command to fail

[Lustre-devel] lmd_parse complains of missing option - causes OST Mount command to fail

[Lustre-devel] lmd_parse complains of missing option - causes OST Mount command to fail

[Lustre-devel] lmd_parse complains of missing option - causes OST Mount command to fail