Comment 7 for bug 1064489

[ 710.752373] BUG: unable to handle kernel NULL pointer dereference at (null)
[ 710.752436] IP: [< (null)>] (null)
[ 710.752470] PGD 107bc3067 PUD 107bc2067 PMD 0
[ 710.752507] Oops: 0010 [#1] SMP
[ 710.752535] Modules linked in: arc4 nls_utf8 cifs nfsv4 autofs4 rfcomm bnep bluetooth snd_hda_codec_realtek snd_hda_intel snd_hda_codec snd_hwdep snd_pcm i915 snd_seq_midi rpcsec_gss_krb5 snd_rawmidi snd_seq_midi_event nfsd snd_seq coretemp snd_timer gpio_ich snd_seq_device drm_kms_helper nfs_acl drm auth_rpcgss snd nfs soundcore snd_page_alloc i2c_algo_bit kvm fscache psmouse lpc_ich lockd video mac_hid dell_wmi serio_raw sunrpc hid_generic sparse_keymap ppdev lp wmi microcode dcdbas parport_pc parport usbhid hid tg3
[ 710.752930] CPU 0
[ 710.752947] Pid: 2063, comm: bash Not tainted 3.6.0-030600-generic #201209302035 Dell Inc. OptiPlex 380 /01TKCC
[ 710.753013] RIP: 0010:[<0000000000000000>] [< (null)>] (null)
[ 710.753059] RSP: 0018:ffff880123d09d00 EFLAGS: 00010246
[ 710.753092] RAX: ffffffffa0487bc0 RBX: ffff88010802ac00 RCX: 0000000000000000
[ 710.753132] RDX: 0000000000000003 RSI: ffff88010802ac00 RDI: ffff880110349028
[ 710.753173] RBP: ffff880123d09d28 R08: ffff88012bc17280 R09: ffff880123d09e98
[ 710.753214] R10: ffff880115593000 R11: ffff880110349028 R12: ffff88010e221c00
[ 710.753254] R13: ffff88010e221c00 R14: ffff880123d09e98 R15: 0000000000000000
[ 710.753296] FS: 00007fa1340bb700(0000) GS:ffff88012bc00000(0000) knlGS:0000000000000000
[ 710.753343] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 710.753377] CR2: 0000000000000000 CR3: 0000000107bc0000 CR4: 00000000000407f0
[ 710.753418] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 710.753459] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
[ 710.753501] Process bash (pid: 2063, threadinfo ffff880123d08000, task ffff88010d655b40)
[ 710.753547] Stack:
[ 710.753561] ffffffff8119071d ffff88010e221c00 ffff88010e221c00 ffff880123d09e98
[ 710.753614] 0000000000000003 ffff880123d09d58 ffffffff81190b88 ffff880123d09d58
[ 710.753666] 01ffffff8169bdcd ffff880123d09e88 ffff880123d09dd8 ffff880123d09d98
[ 710.753718] Call Trace:
[ 710.753740] [<ffffffff8119071d>] ? lookup_real+0x1d/0x60
[ 710.753775] [<ffffffff81190b88>] __lookup_hash+0x38/0x50
[ 710.753810] [<ffffffff8168a397>] lookup_slow+0x47/0xad
[ 710.753843] [<ffffffff81193176>] path_lookupat+0x236/0x790
[ 710.753877] [<ffffffff81190ef5>] ? putname+0x35/0x50
[ 710.753909] [<ffffffff811960f3>] ? user_path_at_empty+0x63/0xa0
[ 710.753947] [<ffffffff81179bcd>] ? kmem_cache_alloc+0x12d/0x150
[ 710.753984] [<ffffffff81190dd7>] ? getname_flags+0x37/0x100
[ 710.754019] [<ffffffff81193701>] do_path_lookup+0x31/0xc0
[ 710.754054] [<ffffffff811960e9>] user_path_at_empty+0x59/0xa0
[ 710.754090] [<ffffffff8118abdb>] ? vfs_stat+0x1b/0x20
[ 710.754122] [<ffffffff8118ad1a>] ? sys_newstat+0x1a/0x40
[ 710.754156] [<ffffffff81196141>] user_path_at+0x11/0x20
[ 710.754190] [<ffffffff81184ae3>] sys_chdir+0x23/0x90
[ 710.754222] [<ffffffff816a6a69>] system_call_fastpath+0x16/0x1b
[ 710.754257] Code: Bad RIP value.
[ 710.754287] RIP [< (null)>] (null)
[ 710.754321] RSP <ffff880123d09d00>
[ 710.754342] CR2: 0000000000000000
[ 710.773594] ---[ end trace aecda259e2f4e2e1 ]---