I posed this problem to suse-amd64 but have no response. So resend this here to see if it catches anyone's eyes. Any suggestion? By the way, the system concerned is regularly updated with YOU and reported with no further updates available. -----Original Message----- From: Chiu, PCM (Peter) Sent: 02 March 2005 17:54 To: 'suse-amd64@suse.com' Cc: Chiu, PCM (Peter) Subject: Unable to handle kernel NULL pointer dereference at 0000000000000003 RIP We have hit a NFS problem on our dual Opteron box running Suse 9.2 with 2.6.8-24.11-smp kernel. The system log reveals this kernel fault as attached below. Is there a fix to this? Mar 2 15:02:10 clear kernel: Unable to handle kernel NULL pointer dereference at 0000000000000003 RIP: Mar 2 15:02:10 clear kernel: <ffffffffa0189300>{:nfsd:nfs3svc_decode_readargs+432} Mar 2 15:02:10 clear kernel: PML4 37b03067 PGD 476ad067 PMD 0 Mar 2 15:02:10 clear kernel: Oops: 0000 [1] SMP Mar 2 15:02:10 clear kernel: CPU 0 Mar 2 15:02:10 clear kernel: Modules linked in: udf snd_pcm_oss snd_pcm snd_timer snd_page_alloc snd_mixer_oss snd soundcore usbserial parport_pc lp parport nfsd exportfs ipv6 bonding binfmt_misc subfs edd joydev sg st sr_mod ohci_hcd hw_random evdev e100 mii dm_mod usbcore tg3 reiserfs mptscsih mptbase 3w_9xxx sd_mod scsi_mod Mar 2 15:02:10 clear kernel: Pid: 6008, comm: nfsd Not tainted (2.6.8-24.11-smp SL92_BRANCH-200501141301260000) Mar 2 15:02:10 clear kernel: RIP: 0010:[<ffffffffa0189300>] <ffffffffa0189300>{:nfsd:nfs3svc_decode_readargs+432} Mar 2 15:02:10 clear kernel: RSP: 0018:0000010020f67e38 EFLAGS: 00010202 Mar 2 15:02:10 clear kernel: RAX: 0000000000000000 RBX: 00000100379f209c RCX: 000001003ffd7470 Mar 2 15:02:10 clear kernel: RDX: 0000000000002000 RSI: 0000000000001000 RDI: 0000000000000008 Mar 2 15:02:10 clear kernel: RBP: 000001003ffd7800 R08: 0000000000000007 R09: 0000010000000000 Mar 2 15:02:10 clear kernel: R10: 6db6db6db6db6db7 R11: 0000000000000000 R12: 000001003ffd7400 Mar 2 15:02:10 clear kernel: R13: 00000100379f206c R14: 0000000000000003 R15: 000001003ffd78a0 Mar 2 15:02:10 clear kernel: FS: 0000002a9588f4c0(0000) GS:ffffffff804e2f00(0000) knlGS:0000000000000000 Mar 2 15:02:10 clear kernel: CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b Mar 2 15:02:10 clear kernel: CR2: 0000000000000003 CR3: 0000000000101000 CR4: 00000000000006e0 Mar 2 15:02:10 clear kernel: Process nfsd (pid: 6008, threadinfo 0000010020f66000, task 00000100207f6030) Mar 2 15:02:10 clear kernel: Stack: ffffffffa01941b0 000001003ffd7800 ffffffffa01941b0 000001002a5c1014 Mar 2 15:02:10 clear kernel: 000001002a5c1014 ffffffffa01780c2 000001003ffd78a0 ffffffffa01941b0 Mar 2 15:02:10 clear kernel: 000001003ffd7800 000001002a5c1014 Mar 2 15:02:10 clear kernel: Call Trace:<ffffffffa01780c2>{:nfsd:nfsd_dispatch+146} <ffffffff80350a77>{svc_process+1223} Mar 2 15:02:10 clear kernel: <ffffffff80133fb0>{default_wake_function+0} <ffffffffa0178480>{:nfsd:nfsd+0} Mar 2 15:02:10 clear kernel: <ffffffffa01786cb>{:nfsd:nfsd+587} <ffffffff8011129f>{child_rip+8} Mar 2 15:02:10 clear kernel: <ffffffffa0178480>{:nfsd:nfsd+0} <ffffffffa0178480>{:nfsd:nfsd+0} Mar 2 15:02:10 clear kernel: <ffffffff80111297>{child_rip+0} Mar 2 15:02:10 clear kernel: Mar 2 15:02:10 clear kernel: Code: 48 0f b6 50 03 48 8b 14 d5 00 47 4a 80 48 2b 82 08 07 00 00 Mar 2 15:02:10 clear kernel: RIP <ffffffffa0189300>{:nfsd:nfs3svc_decode_readargs+432} RSP <0000010020f67e38> Mar 2 15:02:10 clear kernel: CR2: 0000000000000003 Mar 2 15:02:12 clear kernel: <1>Unable to handle kernel NULL pointer dereference at 0000000000000003 RIP: Mar 2 15:02:12 clear kernel: <ffffffffa0189300>{:nfsd:nfs3svc_decode_readargs+432} Mar 2 15:02:12 clear kernel: PML4 6226d067 PGD 7694a067 PMD 0 Mar 2 15:02:12 clear kernel: Oops: 0000 [2] SMP Mar 2 15:02:12 clear kernel: CPU 0 Mar 2 15:02:12 clear kernel: Modules linked in: udf snd_pcm_oss snd_pcm snd_timer snd_page_alloc snd_mixer_oss snd soundcore usbserial parport_pc lp parport nfsd exportfs ipv6 bonding binfmt_misc subfs edd joydev sg st sr_mod ohci_hcd hw_random evdev e100 mii dm_mod usbcore tg3 reiserfs mptscsih mptbase 3w_9xxx sd_mod scsi_mod Mar 2 15:02:12 clear kernel: Pid: 6005, comm: nfsd Not tainted (2.6.8-24.11-smp SL92_BRANCH-200501141301260000) Mar 2 15:02:12 clear kernel: RIP: 0010:[<ffffffffa0189300>] <ffffffffa0189300>{:nfsd:nfs3svc_decode_readargs+432} Mar 2 15:02:12 clear kernel: RSP: 0000:000001002888fe38 EFLAGS: 00010202 Mar 2 15:02:12 clear kernel: RAX: 0000000000000000 RBX: 000001002017709c RCX: 00000100415e5470 Mar 2 15:02:12 clear kernel: RDX: 0000000000002000 RSI: 0000000000001000 RDI: 0000000000000008 Mar 2 15:02:12 clear kernel: RBP: 00000100415e5800 R08: 0000000000000007 R09: 0000010000000000 Mar 2 15:02:12 clear kernel: R10: 6db6db6db6db6db7 R11: 0000000000000000 R12: 00000100415e5400 Mar 2 15:02:12 clear kernel: R13: 000001002017706c R14: 0000000000000003 R15: 00000100415e58a0 Mar 2 15:02:12 clear kernel: FS: 0000002a9588f4c0(0000) GS:ffffffff804e2f00(0000) knlGS:0000000000000000 Mar 2 15:02:12 clear kernel: CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b Mar 2 15:02:12 clear kernel: CR2: 0000000000000003 CR3: 0000000000101000 CR4: 00000000000006e0 Mar 2 15:02:12 clear kernel: Process nfsd (pid: 6005, threadinfo 000001002888e000, task 000001003e4587e0) Mar 2 15:02:12 clear kernel: Stack: ffffffffa01941b0 00000100415e5800 ffffffffa01941b0 000001004e738014 Mar 2 15:02:12 clear kernel: 000001004e738014 ffffffffa01780c2 00000100415e58a0 ffffffffa01941b0 Mar 2 15:02:12 clear kernel: 00000100415e5800 000001004e738014 Mar 2 15:02:12 clear kernel: Call Trace:<ffffffffa01780c2>{:nfsd:nfsd_dispatch+146} <ffffffff80350a77>{svc_process+1223} Mar 2 15:02:12 clear kernel: <ffffffff80133fb0>{default_wake_function+0} <ffffffffa0178480>{:nfsd:nfsd+0} Mar 2 15:02:12 clear kernel: <ffffffffa01786cb>{:nfsd:nfsd+587} <ffffffff8011129f>{child_rip+8} Mar 2 15:02:12 clear kernel: <ffffffffa0178480>{:nfsd:nfsd+0} <ffffffffa0178480>{:nfsd:nfsd+0} Mar 2 15:02:12 clear kernel: <ffffffff80111297>{child_rip+0} Mar 2 15:02:12 clear kernel: Mar 2 15:02:12 clear kernel: Code: 48 0f b6 50 03 48 8b 14 d5 00 47 4a 80 48 2b 82 08 07 00 00 Mar 2 15:02:12 clear kernel: RIP <ffffffffa0189300>{:nfsd:nfs3svc_decode_readargs+432} RSP <000001002888fe38> Mar 2 15:02:12 clear kernel: CR2: 0000000000000003 Mar 2 15:02:15 clear kernel: <1>Unable to handle kernel NULL pointer dereference at 0000000000000003 RIP: Mar 2 15:02:15 clear kernel: <ffffffffa0189300>{:nfsd:nfs3svc_decode_readargs+432} Mar 2 15:02:15 clear kernel: PML4 52d22067 PGD 657067 PMD 0 Mar 2 15:02:15 clear kernel: Oops: 0000 [3] SMP Mar 2 15:02:15 clear kernel: CPU 0 Mar 2 15:02:15 clear kernel: Modules linked in: udf snd_pcm_oss snd_pcm snd_timer snd_page_alloc snd_mixer_oss snd soundcore usbserial parport_pc lp parport nfsd exportfs ipv6 bonding binfmt_misc subfs edd joydev sg st sr_mod ohci_hcd hw_random evdev e100 mii dm_mod usbcore tg3 reiserfs mptscsih mptbase 3w_9xxx sd_mod scsi_mod Mar 2 15:02:15 clear kernel: Pid: 6006, comm: nfsd Not tainted (2.6.8-24.11-smp SL92_BRANCH-200501141301260000) Mar 2 15:02:15 clear kernel: RIP: 0010:[<ffffffffa0189300>] <ffffffffa0189300>{:nfsd:nfs3svc_decode_readargs+432} Mar 2 15:02:15 clear kernel: RSP: 0018:0000010020f25e38 EFLAGS: 00010202 Mar 2 15:02:15 clear kernel: RAX: 0000000000000000 RBX: 00000100206f009c RCX: 000001003ffbd470 Mar 2 15:02:15 clear kernel: RDX: 0000000000002000 RSI: 0000000000001000 RDI: 0000000000000008 Mar 2 15:02:15 clear kernel: RBP: 000001003ffbd800 R08: 0000000000000007 R09: 0000010000000000 Mar 2 15:02:15 clear kernel: R10: 6db6db6db6db6db7 R11: 0000000000000000 R12: 000001003ffbd400 Mar 2 15:02:15 clear kernel: R13: 00000100206f006c R14: 0000000000000003 R15: 000001003ffbd8a0 Mar 2 15:02:15 clear kernel: FS: 0000002a9588f4c0(0000) GS:ffffffff804e2f00(0000) knlGS:0000000000000000 Mar 2 15:02:15 clear kernel: CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b Mar 2 15:02:15 clear kernel: CR2: 0000000000000003 CR3: 0000000000101000 CR4: 00000000000006e0 Mar 2 15:02:15 clear kernel: Process nfsd (pid: 6006, threadinfo 0000010020f24000, task 00000100207f67e0) Mar 2 15:02:15 clear kernel: Stack: ffffffffa01941b0 000001003ffbd800 ffffffffa01941b0 00000100695c2014 Mar 2 15:02:15 clear kernel: 00000100695c2014 ffffffffa01780c2 000001003ffbd8a0 ffffffffa01941b0 Mar 2 15:02:15 clear kernel: 000001003ffbd800 00000100695c2014 Mar 2 15:02:15 clear kernel: Call Trace:<ffffffffa01780c2>{:nfsd:nfsd_dispatch+146} <ffffffff80350a77>{svc_process+1223} Mar 2 15:02:15 clear kernel: <ffffffff80133fb0>{default_wake_function+0} <ffffffffa0178480>{:nfsd:nfsd+0} Mar 2 15:02:15 clear kernel: <ffffffffa01786cb>{:nfsd:nfsd+587} <ffffffff8011129f>{child_rip+8} Mar 2 15:02:15 clear kernel: <ffffffffa0178480>{:nfsd:nfsd+0} <ffffffffa0178480>{:nfsd:nfsd+0} Mar 2 15:02:15 clear kernel: <ffffffff80111297>{child_rip+0} Mar 2 15:02:15 clear kernel: Mar 2 15:02:15 clear kernel: Code: 48 0f b6 50 03 48 8b 14 d5 00 47 4a 80 48 2b 82 08 07 00 00 Mar 2 15:02:15 clear kernel: RIP <ffffffffa0189300>{:nfsd:nfs3svc_decode_readargs+432} RSP <0000010020f25e38> Mar 2 15:02:15 clear kernel: CR2: 0000000000000003 Mar 2 15:02:23 clear kernel: <1>Unable to handle kernel NULL pointer dereference at 0000000000000003 RIP: Mar 2 15:02:23 clear kernel: <ffffffffa0189300>{:nfsd:nfs3svc_decode_readargs+432} Mar 2 15:02:23 clear kernel: PML4 38203067 PGD 38204067 PMD 0 Mar 2 15:02:23 clear kernel: Oops: 0000 [4] SMP Mar 2 15:02:23 clear kernel: CPU 0 Mar 2 15:02:23 clear kernel: Modules linked in: udf snd_pcm_oss snd_pcm snd_timer snd_page_alloc snd_mixer_oss snd soundcore usbserial parport_pc lp parport nfsd exportfs ipv6 bonding binfmt_misc subfs edd joydev sg st sr_mod ohci_hcd hw_random evdev e100 mii dm_mod usbcore tg3 reiserfs mptscsih mptbase 3w_9xxx sd_mod scsi_mod Mar 2 15:02:23 clear kernel: Pid: 6007, comm: nfsd Not tainted (2.6.8-24.11-smp SL92_BRANCH-200501141301260000) Mar 2 15:02:23 clear kernel: RIP: 0010:[<ffffffffa0189300>] <ffffffffa0189300>{:nfsd:nfs3svc_decode_readargs+432} Mar 2 15:02:23 clear kernel: RSP: 0018:000001002b479e38 EFLAGS: 00010202 Mar 2 15:02:23 clear kernel: RAX: 0000000000000000 RBX: 0000010020ad009c RCX: 00000100415e3470 Mar 2 15:02:23 clear kernel: RDX: 0000000000002000 RSI: 0000000000001000 RDI: 0000000000000008 Mar 2 15:02:23 clear kernel: RBP: 00000100415e3800 R08: 0000000000000007 R09: 0000010000000000 Mar 2 15:02:23 clear kernel: R10: 6db6db6db6db6db7 R11: 0000000000000000 R12: 00000100415e3400 Mar 2 15:02:23 clear kernel: R13: 0000010020ad006c R14: 0000000000000003 R15: 00000100415e38a0 Mar 2 15:02:23 clear kernel: FS: 0000002a9588f4c0(0000) GS:ffffffff804e2f00(0000) knlGS:0000000000000000 Mar 2 15:02:23 clear kernel: CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b Mar 2 15:02:23 clear kernel: CR2: 0000000000000003 CR3: 0000000000101000 CR4: 00000000000006e0 Mar 2 15:02:23 clear kernel: Process nfsd (pid: 6007, threadinfo 000001002b478000, task 00000100769ba7e0) Mar 2 15:02:23 clear kernel: Stack: ffffffffa01941b0 00000100415e3800 ffffffffa01941b0 000001002daa7014 Mar 2 15:02:23 clear kernel: 000001002daa7014 ffffffffa01780c2 00000100415e38a0 ffffffffa01941b0 Mar 2 15:02:23 clear kernel: 00000100415e3800 000001002daa7014 Mar 2 15:02:23 clear kernel: Call Trace:<ffffffffa01780c2>{:nfsd:nfsd_dispatch+146} <ffffffff80350a77>{svc_process+1223} Mar 2 15:02:23 clear kernel: <ffffffff80133fb0>{default_wake_function+0} <ffffffffa0178480>{:nfsd:nfsd+0} Mar 2 15:02:23 clear kernel: <ffffffffa01786cb>{:nfsd:nfsd+587} <ffffffff8011129f>{child_rip+8} Mar 2 15:02:23 clear kernel: <ffffffffa0178480>{:nfsd:nfsd+0} <ffffffffa0178480>{:nfsd:nfsd+0} Mar 2 15:02:23 clear kernel: <ffffffff80111297>{child_rip+0} Mar 2 15:02:23 clear kernel: Mar 2 15:02:23 clear kernel: Code: 48 0f b6 50 03 48 8b 14 d5 00 47 4a 80 48 2b 82 08 07 00 00 Mar 2 15:02:23 clear kernel: RIP <ffffffffa0189300>{:nfsd:nfs3svc_decode_readargs+432} RSP <000001002b479e38> Mar 2 15:02:23 clear kernel: CR2: 0000000000000003 Mar 2 15:02:34 clear rpc.mountd: authenticated unmount request from foehn.badc.rl.ac.uk:969 for /disks/clear1 (/disks/clear1)