From: Le Rouzic Subject: Oops when mounting with krb5i flavor on linux-2.6.23-rc9-CITI_NFS4_ALL-1 Date: Fri, 26 Oct 2007 16:24:37 +0200 Message-ID: <4721F8A5.3080804@bull.net> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Cc: nfs@lists.sourceforge.net To: nfsv4 Return-path: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: nfsv4-bounces@linux-nfs.org Errors-To: nfsv4-bounces@linux-nfs.org List-ID: Hi, Running 2.6.23-rc9-CITI_NFS4_ALL-1 on one Intel X86_64 bi-ways machine acting as client and having AIX as server, if I do a NFSV4 mounting on linux using the krb5i flavor get the following Oops during the mount: kernel: Unable to handle kernel NULL pointer dereference at 0000000000000020 RIP: kernel: [] g_token_size+0x1/0x15 kernel: PGD 62f27067 PUD 7698f067 PMD 0 kernel: Oops: 0000 [1] SMP kernel: CPU 1 kernel: Modules linked in: hidp hid rfcomm l2cap bluetooth cpufreq_ondemand acpi_cpufreq dm_mirror dm_multipath dm_mod backlight parport_pc lp parport nvram i2c_i801 i2c_core kernel: Pid: 3111, comm: mount.nfs4 Not tainted 2.6.23-rc9-CITI_NFS4_ALL-1 #6 kernel: RIP: 0010:[] [] g_token_size+0x1/0x15 kernel: RSP: 0018:ffff810060ca5578 EFLAGS: 00010246 kernel: RAX: 000000004721a1e4 RBX: 0000000000000020 RCX: 0000000000000000 kernel: RDX: ffff810060ca5648 RSI: 0000000000000016 RDI: 0000000000000020 kernel: RBP: ffff810060ca5648 R08: ffff810060ca55f8 R09: ffff81007e984300 kernel: R10: ffff810062be9d80 R11: ffffffff805b36a8 R12: 0000000000000000 kernel: R13: ffff810060ca55f8 R14: 000000004721a1e4 R15: ffff81007e984300 kernel: FS: 00002b68e7eaa6f0(0000) GS:ffff81007f86aac0(0000) knlGS:0000000000000000 kernel: CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b kernel: CR2: 0000000000000020 CR3: 0000000061160000 CR4: 00000000000006e0 kernel: DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 kernel: DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400 kernel: Process mount.nfs4 (pid: 3111, threadinfo ffff810060ca4000, task ffff8100786010c0) kernel: Stack: 0000000000000020 ffffffff805b3700 0000000000000000 ffff810060ca5598 kernel: ffff810060ca55e8 0000000000000282 ffff81006f0d73c0 ffffffff805b8573 kernel: ffff810060ca55f8 ffff810062ade048 ffff810060d7e000 ffff810062ade044 kernel: Call Trace: kernel: [] gss_get_mic_kerberos+0x58/0x164 kernel: [] _spin_lock_irqsave+0x9/0xe kernel: [] gss_marshal+0x134/0x19c kernel: [] nfs4_xdr_enc_lookup_root+0x0/0x71 kernel: [] call_transmit+0x18b/0x23a kernel: [] __rpc_execute+0x7d/0x240 kernel: [] rpc_do_run_task+0x89/0xa6 kernel: [] __group_send_sig_info+0x80/0x8b kernel: [] rpc_call_sync+0x19/0x32 kernel: [] nfs4_proc_get_root+0x83/0xca kernel: [] nfs4_path_walk+0x71/0x24f kernel: [] rpc_populate+0x159/0x1a8 kernel: [] mntput_no_expire+0x1c/0x97 kernel: [] rpc_mkdir+0x1eb/0x256 kernel: [] simple_pin_fs+0x89/0xad kernel: [] rpc_register_client+0x10/0x3f kernel: [] rpc_clone_client+0x101/0x152 kernel: [] nfs4_create_server+0x21b/0x38b kernel: [] strndup_user+0x51/0x77 kernel: [] nfs4_get_sb+0x377/0x4a8 kernel: [] __alloc_pages+0x71/0x2d3 kernel: [] vfs_kern_mount+0x93/0x123 kernel: [] do_kern_mount+0x43/0xdd kernel: [] do_mount+0x697/0x70b kernel: [] handle_mm_fault+0x724/0x757 kernel: [] ip_output+0x2ca/0x311 kernel: [] _spin_lock_irqsave+0x9/0xe kernel: [] __up_read+0x13/0x8a kernel: [] do_page_fault+0x461/0x7d1 kernel: [] tcp_transmit_skb+0x699/0x6d6 kernel: [] zone_statistics+0x3f/0x60 kernel: [] copy_mount_options+0xce/0x126 kernel: [] sys_mount+0x8a/0xcd kernel: [] system_call+0x7e/0x83 kernel: More at: ------------------------------------------------------------- Bug: http://bugzilla.linux-nfs.org/show_bug.cgi?id=154 Regards -- ----------------------------------------------------------------- Company : Bull, Architect of an Open World TM (www.bull.com) Name : Aime Le Rouzic Mail : Bull - BP 208 - 38432 Echirolles Cedex - France E-Mail : aime.le-rouzic@bull.net Phone : 33 (4) 76.29.75.51 Fax : 33 (4) 76.29.75.18 -----------------------------------------------------------------