Comment 21 for bug 1348670

Same error with new kernel. It was fine and working without a hick up and today the same issue reverted. 16:01:16 up 6 days

Using
3.2.0-69-generic #103-Ubuntu SMP Tue Sep 2 05:02:14 UTC 2014 x86_64 x86_64 x86_64 GNU/Linux
ii linux-image-3.2.0-69-generic 3.2.0-69.103 Linux kernel image for version 3.2.0 on 64 bit x86 SMP
ii linux-image-server 3.2.0.69.82 Linux kernel image on Server Equipment.

Oct 2 15:54:29 barbarela kernel: [528230.139053] BUG: unable to handle kernel NULL pointer dereference at 0000000000000010
Oct 2 15:54:29 barbarela kernel: [528230.139091] IP: [<ffffffffa03fb451>] set_nfsv4_acl_one+0x21/0xb0 [nfsd]
Oct 2 15:54:29 barbarela kernel: [528230.139129] PGD 415158067 PUD 415159067 PMD 0
Oct 2 15:54:29 barbarela kernel: [528230.139157] Oops: 0000 [#19] SMP
Oct 2 15:54:29 barbarela kernel: [528230.139176] CPU 1
Oct 2 15:54:29 barbarela kernel: [528230.139185] Modules linked in: it87(O) vboxpci(O) vboxnetadp(O) vboxnetflt(O) vboxdrv(O) pci_stub nfsd nfs lockd fscache auth_rpcgss nfs_acl sunrpc dm_crypt snd_hda_codec_hdmi snd_hda_intel snd_hda_codec psmouse edac_core lp edac_mce_amd parport sp5100_tco i2c_piix4 mac_hid k10temp serio_raw snd_hwdep snd_pcm snd_timer snd soundcore snd_page_alloc bonding hwmon_vid fam15h_power raid456 async_pq async_xor xor async_memcpy async_raid6_recov raid6_pq async_tx raid1 raid0 multipath linear raid10 nouveau ttm drm_kms_helper drm i2c_algo_bit mxm_wmi pata_atiixp r8169 video wmi [last unloaded: vboxdrv]
Oct 2 15:54:29 barbarela kernel: [528230.139546]
Oct 2 15:54:29 barbarela kernel: [528230.139557] Pid: 4409, comm: nfsd Tainted: G D O 3.2.0-69-generic #103-Ubuntu Gigabyte Technology Co., Ltd. GA-970A-DS3/GA-970A-DS3
Oct 2 15:54:29 barbarela kernel: [528230.139596] RIP: 0010:[<ffffffffa03fb451>] [<ffffffffa03fb451>] set_nfsv4_acl_one+0x21/0xb0 [nfsd]
Oct 2 15:54:29 barbarela kernel: [528230.139629] RSP: 0018:ffff8801bdc29ce0 EFLAGS: 00010282
Oct 2 15:54:29 barbarela kernel: [528230.139644] RAX: 0000000000004000 RBX: ffff88000381f480 RCX: 0000000002ae378f
Oct 2 15:54:29 barbarela kernel: [528230.139661] RDX: ffffffffa0422374 RSI: 0000000000000000 RDI: ffff88000381f480
Oct 2 15:54:29 barbarela kernel: [528230.139678] RBP: ffff8801bdc29d10 R08: ffffea000a1463c0 R09: ffffffffa03fb4af
Oct 2 15:54:29 barbarela kernel: [528230.139695] R10: ffff88028518f500 R11: 0000000040000004 R12: 0000000000000000
Oct 2 15:54:29 barbarela kernel: [528230.139711] R13: ffff88001555bb20 R14: 0000000000000000 R15: ffff8800a86b2180
Oct 2 15:54:29 barbarela kernel: [528230.139730] FS: 00007fc55e013700(0000) GS:ffff88043ec40000(0000) knlGS:0000000000000000
Oct 2 15:54:29 barbarela kernel: [528230.140874] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
Oct 2 15:54:29 barbarela kernel: [528230.142016] CR2: 0000000000000010 CR3: 000000038bac3000 CR4: 00000000000406e0
Oct 2 15:54:29 barbarela kernel: [528230.142956] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
Oct 2 15:54:29 barbarela kernel: [528230.142956] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
Oct 2 15:54:29 barbarela kernel: [528230.142956] Process nfsd (pid: 4409, threadinfo ffff8801bdc28000, task ffff88007aa2ae00)
Oct 2 15:54:29 barbarela kernel: [528230.142956] Stack:
Oct 2 15:54:29 barbarela kernel: [528230.142956] ffff8800a86b2040 ffff88000381f480 0000000000000000 ffff88001555bb20
Oct 2 15:54:29 barbarela kernel: [528230.142956] 0000000000000000 ffff8800a86b2180 ffff8801bdc29d50 ffffffffa03fc5e3
Oct 2 15:54:29 barbarela kernel: [528230.142956] ffff88028518f300 0000000000000000 ffff88001d0aa000 ffff8800a86b2040
Oct 2 15:54:29 barbarela kernel: [528230.142956] Call Trace:
Oct 2 15:54:29 barbarela kernel: [528230.142956] [<ffffffffa03fc5e3>] nfsd4_set_nfs4_acl+0x143/0x150 [nfsd]
Oct 2 15:54:29 barbarela kernel: [528230.142956] [<ffffffffa0409b74>] nfsd4_setattr+0xd4/0x130 [nfsd]
Oct 2 15:54:29 barbarela kernel: [528230.142956] [<ffffffffa0408be8>] nfsd4_proc_compound+0x518/0x6e0 [nfsd]
Oct 2 15:54:29 barbarela kernel: [528230.142956] [<ffffffffa03f7a4b>] nfsd_dispatch+0xeb/0x230 [nfsd]
Oct 2 15:54:29 barbarela kernel: [528230.142956] [<ffffffffa02ef475>] svc_process_common+0x345/0x690 [sunrpc]
Oct 2 15:54:29 barbarela kernel: [528230.142956] [<ffffffff81060ad0>] ? try_to_wake_up+0x200/0x200
Oct 2 15:54:29 barbarela kernel: [528230.142956] [<ffffffffa02efb12>] svc_process+0x102/0x150 [sunrpc]
Oct 2 15:54:29 barbarela kernel: [528230.142956] [<ffffffffa03f71ad>] nfsd+0xbd/0x160 [nfsd]
Oct 2 15:54:29 barbarela kernel: [528230.142956] [<ffffffffa03f70f0>] ? nfsd_startup+0xf0/0xf0 [nfsd]
Oct 2 15:54:29 barbarela kernel: [528230.142956] [<ffffffff8108b96c>] kthread+0x8c/0xa0
Oct 2 15:54:29 barbarela kernel: [528230.142956] [<ffffffff8166e3b4>] kernel_thread_helper+0x4/0x10
Oct 2 15:54:29 barbarela kernel: [528230.142956] [<ffffffff8108b8e0>] ? flush_kthread_worker+0xa0/0xa0
Oct 2 15:54:29 barbarela kernel: [528230.142956] [<ffffffff8166e3b0>] ? gs_change+0x13/0x13
Oct 2 15:54:29 barbarela kernel: [528230.142956] Code: 19 c0 f7 d0 83 e0 02 c3 90 90 55 48 89 e5 48 83 ec 30 48 89 5d d8 4c 89 65 e0 4c 89 6d e8 4c 89 75 f0 4c 89 7d f8 66 66 66 66 90 <48> 63 46 10 49 89 fd 49 89 f6 be d0 00 00 00 49 89 d4 4c 8d 3c
Oct 2 15:54:29 barbarela kernel: [528230.142956] RIP [<ffffffffa03fb451>] set_nfsv4_acl_one+0x21/0xb0 [nfsd]
Oct 2 15:54:29 barbarela kernel: [528230.142956] RSP <ffff8801bdc29ce0>
Oct 2 15:54:29 barbarela kernel: [528230.142956] CR2: 0000000000000010
Oct 2 15:54:29 barbarela kernel: [528230.170576] ---[ end trace e2fe32bc8beee7db ]---