Bug 847430

libreport version: 2.0.10
cmdline:        BOOT_IMAGE=/vmlinuz-3.4.7-1.fc16.x86_64 root=/dev/mapper/airy--vg0-root ro rd.dm=0 rd.lvm.lv=airy-vg0/swap SYSFONT=latarcyrheb-sun16 rd.luks=0 rd.md.uuid=aef7b273:e3a02dc4:0c093d1c:635a2c4e LANG=en_US.UTF-8 rd.md.uuid=7281c956:12c227be:3298d7ca:df2c3430 KEYTABLE=us rd.lvm.lv=airy-vg0/root log_buf_len=1M systemd.log_level=debug systemd.log_target=kmsg

backtrace:
:BUG: unable to handle kernel paging request at 000003b0000003c8
:IP: [<ffffffff81264bf5>] __key_instantiate_and_link+0x55/0x100
:PGD 0 
:Oops: 0000 [#1] SMP 
:CPU 1 
:Modules linked in: ipheth binfmt_misc vfat fat tcp_lp fuse nfs fscache auth_rpcgss nfs_acl ppdev parport_pc lp parport lockd tpm_bios sunrpc snd_hda_codec_hdmi snd_hda_codec_idt vhost_net snd_hda_intel snd_hda_codec r8169 macvtap macvlan tun kvm_intel kvm coretemp iTCO_wdt iTCO_vendor_support snd_hwdep snd_seq snd_seq_device snd_pcm joydev snd_timer snd microcode i2c_i801 soundcore snd_page_alloc uinput mii raid1 crc32c_intel ghash_clmulni_intel usb_storage i915 drm_kms_helper drm i2c_algo_bit i2c_core video [last unloaded: scsi_wait_scan]
:Pid: 1349, comm: rpc.idmapd Not tainted 3.4.7-1.fc16.x86_64 #1 Shuttle Inc. SH61R/FH61R
:RIP: 0010:[<ffffffff81264bf5>]  [<ffffffff81264bf5>] __key_instantiate_and_link+0x55/0x100
:RSP: 0018:ffff8803f772bd48  EFLAGS: 00010246
:RAX: 000003b0000003b0 RBX: ffff8803d54a75f0 RCX: ffff880401de7f00
:RDX: 0000000000000004 RSI: ffff8803f772be75 RDI: ffff8803d54a75f0
:RBP: ffff8803f772bd88 R08: 000000030000013e R09: ffff8803f772bdb0
:R10: 000000000000000a R11: 0000000000000246 R12: ffff880401de7f00
:R13: ffff8803f772be75 R14: 000000030000013e R15: 0000000000000004
:FS:  00007f2f8ec11700(0000) GS:ffff88041f240000(0000) knlGS:0000000000000000
:CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
:CR2: 000003b0000003c8 CR3: 00000003f541d000 CR4: 00000000001407e0
:DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
:DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
:Process rpc.idmapd (pid: 1349, threadinfo ffff8803f772a000, task ffff8803f74fae40)
:Stack:
: ffff8803f772bdb0 ffff8803f772bdb0 ffff8803d54a74b0 ffff8803d54a75f0
: ffff880401de7f00 0000000000000004 ffff8803f772be75 000000030000013e
: ffff8803f772bdd8 ffffffff81264d03 ffff8803f772bde8 000000030000013e
:Call Trace:
: [<ffffffff81264d03>] key_instantiate_and_link+0x63/0xa0
: [<ffffffffa038067b>] idmap_pipe_downcall+0x1cb/0x1e0 [nfs]
: [<ffffffffa02c9f67>] rpc_pipe_write+0x67/0x90 [sunrpc]
: [<ffffffff81183b63>] vfs_write+0xb3/0x180
: [<ffffffff81183e8a>] sys_write+0x4a/0x90
: [<ffffffff8106c604>] ? sys_rt_sigprocmask+0x84/0xd0
: [<ffffffff816047e9>] system_call_fastpath+0x16/0x1b
:Code: 81 49 89 f5 49 89 d7 49 89 cc 4d 89 c6 4c 89 4d c8 e8 40 58 39 00 48 8b 43 70 a8 01 75 78 48 8b 43 20 4c 89 ee 4c 89 fa 48 89 df <ff> 50 18 85 c0 41 89 c5 75 71 48 8b 43 48 f0 ff 40 44 48 8d 43 
:RIP  [<ffffffff81264bf5>] __key_instantiate_and_link+0x55/0x100
: RSP <ffff8803f772bd48>
:CR2: 000003b0000003c8