I am getting the following kernel panic when exporting GFS2 via NFS. When the client mounts and does a ls the server panics. Any one else seen this issue? Any ideas? <tt>dlm: connecting to 6 dlm: got connection from 6 NFSD: Using /var/lib/nfs/v4recovery as the NFSv4 state recovery directory NFSD: starting 90-second grace period Unable to handle kernel NULL pointer dereference at 0000000000000088 RIP: [<ffffffff88111069>] :gfs2:gfs2_glock_dq+0x15/0xa5 PGD 22d792067 PUD 22d77a067 PMD 0 Oops: 0000 [1] SMP last sysfs file: /fs/gfs2/nfs_cluster:stripe4_512k/lock_module/recover_done CPU 0 Modules linked in: nfsd exportfs lockd nfs_acl qla2xxx lock_dlm gfs2 dlm configfs iptable_filter ip_tables autofs4 hidp rfcomm l2cap bluetooth sunrpc ip6t_REJECT xt_ tcpudp ip6table_filter ip6_tables x_tables ipv6 dm_round_robin dm_multipath video sbs i2c_ec i2c_core button battery asus_acpi acpi_memhotplug ac parport_pc lp parpo rt joydev sr_mod sg pcspkr ib_mthca ib_mad ib_core shpchp bnx2 ide_cd cdrom serio_raw dm_snapshot dm_zero dm_mirror dm_mod usb_storage scsi_transport_fc megaraid_sas sd_mod scsi_mod ext3 jbd ehci_hcd ohci_hcd uhci_hcd Pid: 29865, comm: nfsd Not tainted 2.6.18-8.el5 #1 RIP: 0010:[<ffffffff88111069>] [<ffffffff88111069>] :gfs2:gfs2_glock_dq+0x15/0xa5 RSP: 0018:ffff8101f51c96e0 EFLAGS: 00010246 RAX: 0000000000000008 RBX: 0000000000000000 RCX: ffff8101f51c9cd0 RDX: ffff8101f57f2080 RSI: ffff8101f51c97b0 RDI: ffff8101f51c9720 RBP: ffff8101f51c9720 R08: ffff8101f504f014 R09: ffff8101f51c99b8 R10: ffff8101f57ad008 R11: ffffffff8811d23c R12: ffff8101f81fe780 R13: ffff8101f51c97b0 R14: 0000000000000001 R15: ffff8101f504f000 FS: 00002aaaab0146f0(0000) GS:ffffffff8038a000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b CR2: 0000000000000088 CR3: 000000022d613000 CR4: 00000000000006e0 Process nfsd (pid: 29865, threadinfo ffff8101f51c8000, task ffff8101f57f2080) Stack: 0000000000000000 ffff8101f51c9720 ffff8101f51c99b0 ffff8101f81fe780 ffff8101f51c97b0 ffffffff8811112c 0000000000000000 ffffffff8811d2e3 0000000000000000 0000000000000000 0000000000000000 0000000000000000 Call Trace: [<ffffffff8811112c>] :gfs2:gfs2_glock_dq_uninit+0x9/0x12 [<ffffffff8811d2e3>] :gfs2:gfs2_getattr+0xa7/0xb4 [<ffffffff8000ddca>] vfs_getattr+0x2d/0xa9 [<ffffffff885fb4bf>] :nfsd:encode_post_op_attr+0x3f/0x213 [<ffffffff885fbc57>] :nfsd:encode_entry+0x232/0x53e [<ffffffff800bea3c>] zone_statistics+0x3e/0x6d [<ffffffff80086480>] enqueue_task+0x41/0x56 [<ffffffff800864bc>] __activate_task+0x27/0x39 [<ffffffff80044d16>] try_to_wake_up+0x407/0x418 [<ffffffff800850dd>] __wake_up_common+0x3e/0x68 [<ffffffff885fbf6e>] :nfsd:nfs3svc_encode_entry_plus+0xb/0x10 [<ffffffff8811adf1>] :gfs2:filldir_func+0x22/0x86 [<ffffffff8810bb85>] :gfs2:do_filldir_main+0x126/0x16d [<ffffffff8811adcf>] :gfs2:filldir_func+0x0/0x86 [<ffffffff8810a454>] :gfs2:gfs2_dirent_gather+0x0/0x24 [<ffffffff885fbf63>] :nfsd:nfs3svc_encode_entry_plus+0x0/0x10 [<ffffffff8810c0ab>] :gfs2:gfs2_dir_read+0x416/0x479 [<ffffffff8811adcf>] :gfs2:filldir_func+0x0/0x86 [<ffffffff88126ba7>] :gfs2:gfs2_trans_end+0x14e/0x16b [<ffffffff885fbf63>] :nfsd:nfs3svc_encode_entry_plus+0x0/0x10 [<ffffffff8811b559>] :gfs2:gfs2_readdir+0x98/0xbe [<ffffffff88112c5e>] :gfs2:gfs2_glock_nq_atime+0x14e/0x292 [<ffffffff885fbf63>] :nfsd:nfs3svc_encode_entry_plus+0x0/0x10 [<ffffffff8003498f>] vfs_readdir+0x77/0xa9 [<ffffffff885fbf63>] :nfsd:nfs3svc_encode_entry_plus+0x0/0x10 [<ffffffff885f3e12>] :nfsd:nfsd_readdir+0x6d/0xc5 [<ffffffff885fade0>] :nfsd:nfsd3_proc_readdirplus+0xf8/0x224 [<ffffffff885f00e9>] :nfsd:nfsd_dispatch+0xd7/0x198 [<ffffffff884474b5>] :sunrpc:svc_process+0x43c/0x6fa [<ffffffff8006214d>] __down_read+0x12/0x92 [<ffffffff885f0471>] :nfsd:nfsd+0x0/0x327 [<ffffffff885f0624>] :nfsd:nfsd+0x1b3/0x327 [<ffffffff8005bfe5>] child_rip+0xa/0x11 [<ffffffff885f0471>] :nfsd:nfsd+0x0/0x327 [<ffffffff885f0471>] :nfsd:nfsd+0x0/0x327 [<ffffffff8005bfdb>] child_rip+0x0/0x11 Code: 4c 8b ab 88 00 00 00 74 0a 31 f6 48 89 df e8 40 fa ff ff 4c RIP [<ffffffff88111069>] :gfs2:gfs2_glock_dq+0x15/0xa5 RSP <ffff8101f51c96e0> CR2: 0000000000000088 <0>Kernel panic - not syncing: Fatal exception </tt> Mahmoud Hanafi Sr. System Administrator CSC HPC COE Bld. 676 2435 Fifth Street WPAFB, Ohio 45433 (937) 255-1536 -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- This is a PRIVATE message. 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