modprobe ocfs2_stack_o2cb warning - duplicate filename o2cb in sysfs

modprobe ocfs2_stack_o2cb warning - duplicate filename o2cb in sysfs

[Roland]

git17 on vmware - just modprobe ocfs2_stack_o2cb after boot

May  2 02:10:46 opensuse103 kernel: OCFS2 Node Manager 1.5.0
May  2 02:10:47 opensuse103 kernel: sysfs: duplicate filename 'o2cb' can not 
be created
May  2 02:10:47 opensuse103 kernel: ------------[ cut here ]------------
May  2 02:10:47 opensuse103 kernel: WARNING: at fs/sysfs/dir.c:425 
sysfs_add_one+0x31/0x7a()
May  2 02:10:47 opensuse103 kernel: Modules linked in: ocfs2_nodemanager(+) 
configfs ocfs2_stackglue iptable_filter ip_tables ip6table_filter ip6_tables 
x_tables ipv6 af_packet microcode firmware_class fuse loop dm_mod ide_cd_mod 
cdrom pata_acpi ata_piix ahci ata_generic libata dock ide_pci_generic 
parport_pc pcnet32 i2c_piix4 shpchp rtc_cmos piix intel_agp container 
parport mii ac button rtc_core agpgart i2c_core rtc_lib ide_core pci_hotplug 
uhci_hcd usbcore edd ext3 mbcache jbd fan mptsas scsi_transport_sas mptfc 
scsi_transport_fc scsi_tgt mptspi mptscsih mptbase scsi_transport_spi sd_mod 
sg scsi_mod thermal processor [last unloaded: pcips2]
May  2 02:10:47 opensuse103 kernel: Pid: 2651, comm: modprobe Not tainted 
2.6.25-git17-default #1
May  2 02:10:47 opensuse103 kernel:  [<c0121576>] warn_on_slowpath+0x40/0x67
May  2 02:10:47 opensuse103 kernel:  [<c01258e9>] irq_exit+0x53/0x6a
May  2 02:10:47 opensuse103 kernel:  [<c011142d>] 
smp_apic_timer_interrupt+0x6b/0x76
May  2 02:10:47 opensuse103 kernel:  [<c0105a18>] 
apic_timer_interrupt+0x28/0x30
May  2 02:10:47 opensuse103 kernel:  [<c0121e51>] vprintk+0x2b9/0x2cd
May  2 02:10:47 opensuse103 kernel:  [<c01cbb5c>] 
ida_get_new_above+0xe3/0x163
May  2 02:10:47 opensuse103 kernel:  [<c017e2b0>] find_inode+0x1b/0x56
May  2 02:10:47 opensuse103 kernel:  [<c01a662f>] sysfs_ilookup_test+0x0/0xd
May  2 02:10:47 opensuse103 kernel:  [<c017e395>] ifind+0x22/0x73
May  2 02:10:47 opensuse103 kernel:  [<c017e3a3>] ifind+0x30/0x73
May  2 02:10:47 opensuse103 kernel:  [<c0121e79>] printk+0x14/0x18
May  2 02:10:47 opensuse103 kernel:  [<c01a6865>] sysfs_add_one+0x31/0x7a
May  2 02:10:47 opensuse103 kernel:  [<c01a73ea>] 
sysfs_create_link+0x90/0xde
May  2 02:10:47 opensuse103 kernel:  [<d0c1719c>] o2cb_sys_init+0x2c/0x68 
[ocfs2_nodemanager]
May  2 02:10:47 opensuse103 kernel:  [<d08f508c>] init_o2nm+0x8c/0xb4 
[ocfs2_nodemanager]
May  2 02:10:47 opensuse103 kernel:  [<c013db4c>] 
sys_init_module+0x1694/0x17a7
May  2 02:10:47 opensuse103 kernel:  [<c01ceb32>] simple_strtoull+0x0/0xec
May  2 02:10:47 opensuse103 kernel:  [<c01079de>] sys_mmap2+0x62/0x77
May  2 02:10:47 opensuse103 kernel:  [<c010491f>] 
sysenter_past_esp+0x78/0xb9
May  2 02:10:47 opensuse103 kernel:  =======================
May  2 02:10:47 opensuse103 kernel: ---[ end trace 77c3881ff959c2ac ]---
May  2 02:10:47 opensuse103 kernel: ocfs2_dlm: Unknown symbol mlog_and_bits
May  2 02:10:47 opensuse103 kernel: ocfs2_dlm: Unknown symbol o2nm_this_node
May  2 02:10:47 opensuse103 kernel: ocfs2_dlm: Unknown symbol 
o2hb_check_node_heartbeating
May  2 02:10:47 opensuse103 kernel: ocfs2_dlm: Unknown symbol mlog_not_bits
May  2 02:10:47 opensuse103 kernel: ocfs2_dlm: Unknown symbol 
o2hb_check_local_node_heartbeating
May  2 02:10:47 opensuse103 kernel: ocfs2_dlm: Unknown symbol 
o2hb_setup_callback
May  2 02:10:47 opensuse103 kernel: ocfs2_dlm: Unknown symbol 
o2net_send_message_vec
May  2 02:10:47 opensuse103 kernel: ocfs2_dlm: Unknown symbol 
o2hb_fill_node_map
May  2 02:10:47 opensuse103 kernel: ocfs2_dlm: Unknown symbol 
o2net_unregister_handler_list
May  2 02:10:47 opensuse103 kernel: ocfs2_dlm: Unknown symbol 
o2net_send_message
May  2 02:10:47 opensuse103 kernel: ocfs2_dlm: Unknown symbol 
o2net_register_handler
May  2 02:10:47 opensuse103 kernel: ocfs2_dlm: Unknown symbol 
o2hb_register_callback
May  2 02:10:47 opensuse103 kernel: ocfs2_dlm: Unknown symbol 
o2hb_unregister_callback
May  2 02:10:47 opensuse103 kernel: ocfs2_stack_o2cb: Unknown symbol 
dlm_print_one_lock
May  2 02:10:47 opensuse103 kernel: ocfs2_stack_o2cb: Unknown symbol 
mlog_and_bits
May  2 02:10:47 opensuse103 kernel: ocfs2_stack_o2cb: Unknown symbol 
o2nm_this_node
May  2 02:10:47 opensuse103 kernel: ocfs2_stack_o2cb: Unknown symbol 
mlog_not_bits
May  2 02:10:47 opensuse103 kernel: ocfs2_stack_o2cb: Unknown symbol dlmlock
May  2 02:10:47 opensuse103 kernel: ocfs2_stack_o2cb: Unknown symbol 
o2nm_get_hb_ctl_path
May  2 02:10:47 opensuse103 kernel: ocfs2_stack_o2cb: Unknown symbol 
o2hb_check_local_node_heartbeating
May  2 02:10:47 opensuse103 kernel: ocfs2_stack_o2cb: Unknown symbol 
dlm_unregister_eviction_cb
May  2 02:10:47 opensuse103 kernel: ocfs2_stack_o2cb: Unknown symbol 
dlm_unregister_domain
May  2 02:10:47 opensuse103 kernel: ocfs2_stack_o2cb: Unknown symbol 
dlm_register_domain
May  2 02:10:47 opensuse103 kernel: ocfs2_stack_o2cb: Unknown symbol 
dlm_register_eviction_cb
May  2 02:10:47 opensuse103 kernel: ocfs2_stack_o2cb: Unknown symbol 
dlm_setup_eviction_cb
May  2 02:10:47 opensuse103 kernel: ocfs2_stack_o2cb: Unknown symbol 
dlmunlock

Re: modprobe ocfs2_stack_o2cb warning - duplicate filename o2cb in sysfs

[Joel Becker]

Hey Roland,
	Thanks for sending this along.  The fix is already queued; it
pretty much blows up for everyone!
http://git.kernel.org/?p=linux/kernel/git/mfasheh/ocfs2.git;a=commit;h=9d80f7539a91c0154e40fc9e4ae5e818dd8f102e

Joel

-- 

"Reality is merely an illusion, albeit a very persistent one."
        - Albert Einstien

Joel Becker
Principal Software Developer
Oracle
E-mail: joel.becker@oracle.com
Phone: (650) 506-8127