Hello, I am running Kernel version 2.6.35-rc5-pnfs and notice there is kernel crash everytime i run iozone on the mounted directory. Is there a patch already developed for this bug which i can apply. Please see the error message from message log. Jul 28 11:06:28 localhost kernel: BUG: unable to handle kernel NULL pointer dereference at 0000000000000020 Jul 28 11:06:28 localhost kernel: IP: [<ffffffffa025d117>] encode_stateid+0x3e/0x8f [nfs] Jul 28 11:06:28 localhost kernel: PGD 6d288067 PUD 70e43067 PMD 0 Jul 28 11:06:28 localhost kernel: Oops: 0000 [#1] SMP Jul 28 11:06:28 localhost kernel: last sysfs file: /sys/devices/pci0000:00/0000:00:1f.3/local_cpus Jul 28 11:06:28 localhost kernel: CPU 0 Jul 28 11:06:28 localhost kernel: Modules linked in: nfslayoutdriver nfs lockd fscache nfs_acl auth_rpcgss sunrpc ipv6 p4_clockmod freq_table speedstep_lib dm_multipath uinput e1000e iTCO_wdt serio_raw iTCO_vendor_support i2c_i801 pcspkr usb_storage i915 drm_kms_helper drm i2c_algo_bit i2c_core video output [last unloaded: mperf] Jul 28 11:06:28 localhost kernel: Jul 28 11:06:28 localhost kernel: Pid: 1317, comm: iozone Not tainted 2.6.35-rc5-pnfs #1 To be filled by O.E.M./To Be Filled By O.E.M. Jul 28 11:06:28 localhost kernel: RIP: 0010:[<ffffffffa025d117>] [<ffffffffa025d117>] encode_stateid+0x3e/0x8f [nfs] Jul 28 11:06:28 localhost kernel: RSP: 0018:ffff880079223a08 EFLAGS: 00010286 Jul 28 11:06:28 localhost kernel: RAX: ffff8800744b10b8 RBX: ffff8800744b10b8 RCX: 0000000000000000 Jul 28 11:06:28 localhost kernel: RDX: ffff88007b03c008 RSI: ffff880070a0d9c0 RDI: ffff880079223ab8 Jul 28 11:06:28 localhost kernel: RBP: ffff880079223a48 R08: ffff8800744b10b4 R09: 0000000000000004 Jul 28 11:06:28 localhost kernel: R10: ffff8800702d72b8 R11: 0000000000000007 R12: ffff88006d148500 Jul 28 11:06:28 localhost kernel: R13: 0000000000000000 R14: ffff880079223ab8 R15: ffffffffa025d2a1 Jul 28 11:06:28 localhost kernel: FS: 00007f34ff276700(0000) GS:ffff880002000000(0000) knlGS:0000000000000000 Jul 28 11:06:28 localhost kernel: CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 Jul 28 11:06:28 localhost kernel: CR2: 0000000000000020 CR3: 000000006d2a7000 CR4: 00000000000006f0 Jul 28 11:06:28 localhost kernel: DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 Jul 28 11:06:28 localhost kernel: DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400 Jul 28 11:06:28 localhost kernel: Process iozone (pid: 1317, threadinfo ffff880079222000, task ffff88006ed4dcc0) Jul 28 11:06:28 localhost kernel: Stack: Jul 28 11:06:28 localhost kernel: ffff880079223a18 ffffffffa025ae90 ffff880079223a78 00000000a4433f68 Jul 28 11:06:28 localhost kernel: <0> 000a12d000000010 ffff880079223a88 ffff880079223ab8 ffff8800702d71f0 Jul 28 11:06:28 localhost kernel: <0> ffff880079223a78 ffffffffa025d1a3 ffff88007b03c000 ffff8800702d71f0 Jul 28 11:06:28 localhost kernel: Call Trace: Jul 28 11:06:28 localhost kernel: [<ffffffffa025ae90>] ? reserve_space+0xe/0x19 [nfs] Jul 28 11:06:28 localhost kernel: [<ffffffffa025d1a3>] encode_write+0x3b/0x89 [nfs] Jul 28 11:06:28 localhost kernel: [<ffffffffa025d33a>] nfs4_xdr_enc_write+0x99/0xc5 [nfs] Jul 28 11:06:28 localhost kernel: [<ffffffffa01b782a>] rpcauth_wrap_req+0x7f/0x8e [sunrpc] Jul 28 11:06:28 localhost kernel: [<ffffffffa01afe97>] call_transmit+0x1e9/0x26d [sunrpc] Jul 28 11:06:28 localhost kernel: [<ffffffffa01b6d4a>] __rpc_execute+0x86/0x213 [sunrpc] Jul 28 11:06:28 localhost kernel: [<ffffffffa01b6efa>] rpc_execute+0x23/0x27 [sunrpc] Jul 28 11:06:28 localhost kernel: [<ffffffffa01b09bf>] rpc_run_task+0x29/0x2f [sunrpc] Jul 28 11:06:28 localhost kernel: [<ffffffffa0244812>] nfs_direct_write_execute+0x6a/0xc8 [nfs] Jul 28 11:06:28 localhost kernel: [<ffffffffa02452b3>] nfs_file_direct_write+0x503/0x66f [nfs] Jul 28 11:06:28 localhost kernel: [<ffffffff8106506e>] ? wake_up_bit+0x25/0x2a Jul 28 11:06:28 localhost kernel: [<ffffffffa023d0c4>] nfs_file_write+0x62/0x184 [nfs] Jul 28 11:06:28 localhost kernel: [<ffffffff8110410e>] do_sync_write+0xcb/0x108 Jul 28 11:06:28 localhost kernel: [<ffffffffa0249471>] ? nfs_wb_all+0x42/0x44 [nfs] Jul 28 11:06:28 localhost kernel: [<ffffffff811c5caf>] ? security_file_permission+0x16/0x18 Jul 28 11:06:28 localhost kernel: [<ffffffff81104691>] vfs_write+0xae/0x10b Jul 28 11:06:28 localhost kernel: [<ffffffff811047ae>] sys_write+0x4a/0x6e Jul 28 11:06:28 localhost kernel: [<ffffffff81009c32>] system_call_fastpath+0x16/0x1b Jul 28 11:06:28 localhost kernel: Code: 89 f4 be 10 00 00 00 49 89 d5 65 48 8b 04 25 28 00 00 00 48 89 45 d8 31 c0 e8 78 dd ff ff 49 8b 74 24 48 48 89 c3 48 85 f6 74 1e <49> 8b 55 20 4c 8d 65 c0 41 8b 4d 28 4c 89 e7 e8 c5 4d 00 00 ba Jul 28 11:06:28 localhost kernel: RIP [<ffffffffa025d117>] encode_stateid+0x3e/0x8f [nfs] Jul 28 11:06:28 localhost kernel: RSP <ffff880079223a08> Jul 28 11:06:28 localhost kernel: CR2: 0000000000000020 Jul 28 11:06:28 localhost kernel: ---[ end trace 8dabbf8bb362aa6e ]--- Jul 28 11:06:36 localhost abrtd: Hmm, stray update_client: 'Creating kernel oops crash reports...' Jul 28 11:06:36 localhost abrt: Kerneloops: Reported 1 kernel oopses to Abrt Jul 28 11:06:36 localhost abrtd: Directory 'kerneloops-1280340396-1' creation detected Jul 28 11:06:36 localhost abrtd: Getting local universal unique identification Jul 28 11:06:36 localhost abrtd: New crash, saving... -- To unsubscribe from this list: send the line "unsubscribe linux-nfs" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
