Public bug reported:
$ lsb_release -rd
Description: Ubuntu 12.04.4 LTS
Release: 12.04
$ apt-cache policy linux-image-generic-lts-saucy
linux-image-generic-lts-saucy:
Installed: 3.11.0.19.18
Candidate: 3.11.0.19.18
Version table:
*** 3.11.0.19.18 0
500 http://us.archive.ubuntu.com/ubuntu/ precise-updates/main amd64
Packages
100 /var/lib/dpkg/status
3.11.0.18.17 0
500 http://security.ubuntu.com/ubuntu/ precise-security/main amd64
Packages
Using linux-image-3.11.0-19-generic=3.11.0-19.33~precise1 on 12.04 LTS.
Getting Oops at boot up, which causes the mount command for rpc_pipefs
to hang (uninterruptible sleep). NFS mounts are not mounted, various
process do not start up, presumably because they are all waiting on this
to complete.
Trying to manually mount NFS mounts leaves the "mount" processes in
uninterruptible sleep as well.
Booting up with 3.11.0-18 and everything works fine, no Oops at boot.
Below is the Oops in syslog:
kernel: [ 10.452068] IPv6: ADDRCONF(NETDEV_UP): eth0: link is not ready
kernel: [ 10.452078] IPv6: ADDRCONF(NETDEV_UP): eth1: link is not ready
kernel: [ 10.614594] RPC: Registered named UNIX socket transport module.
kernel: [ 10.614600] RPC: Registered udp transport module.
kernel: [ 10.614602] RPC: Registered tcp transport module.
kernel: [ 10.614604] RPC: Registered tcp NFSv4.1 backchannel transport module.
kernel: [ 11.007002] FS-Cache: Loaded
kernel: [ 11.061373] FS-Cache: Netfs 'nfs' registered for caching
kernel: [ 11.309406] NFS: Registering the id_resolver key type
kernel: [ 11.309427] Key type id_resolver registered
kernel: [ 11.309429] Key type id_legacy registered
kernel: [ 11.567477] Installing knfsd (copyright (C) 1996 o...@monad.swb.de).
kernel: [ 11.577850] lp: driver loaded but no devices found
kernel: [ 11.586550] BUG: unable to handle kernel NULL pointer dereference at
0000000000000010
kernel: [ 11.586567] IP: [<ffffffffa00fc618>]
__rpc_clnt_handle_event+0x48/0xd0 [sunrpc]
kernel: [ 11.586594] PGD 11737b067 PUD 1173b1067 PMD 0
kernel: [ 11.586605] Oops: 0000 [#1] SMP
kernel: [ 11.586613] Modules linked in: nfsd lp nfs_acl parport auth_rpcgss
nfsv4 nfs fscache lockd binfmt_misc sunrpc linear multipath raid0 raid10
raid456 async_pq async_xor xor async_memcpy async_raid6_recov hid_generic
raid6_pq async_tx usbhid hid raid1 e100 wmi pata_acpi ahci libahci pata_atiixp
r8169 mii
kernel: [ 11.586698] CPU: 0 PID: 718 Comm: mount Not tainted
3.11.0-19-generic #33~precise1-Ubuntu
kernel: [ 11.586704] Hardware name: To Be Filled By O.E.M. To Be Filled By
O.E.M./A790GMH/128M, BIOS P1.30 07/30/2009
kernel: [ 11.586711] task: ffff880117460000 ti: ffff880116ca8000 task.ti:
ffff880116ca8000
kernel: [ 11.586719] RIP: 0010:[<ffffffffa00fc618>] [<ffffffffa00fc618>]
__rpc_clnt_handle_event+0x48/0xd0 [sunrpc]
kernel: [ 11.586738] RSP: 0018:ffff880116ca9c18 EFLAGS: 00010287
kernel: [ 11.586745] RAX: ffff880116817300 RBX: ffff880116c3ee00 RCX:
0000000000000002
kernel: [ 11.586752] RDX: 0000000000000000 RSI: 0000000000000100 RDI:
0000000000000000
kernel: [ 11.586759] RBP: ffff880116ca9c38 R08: ffff8801168173f8 R09:
0000000000000000
kernel: [ 11.586766] R10: 0000000000000001 R11: 0000000000017960 R12:
0000000000000000
kernel: [ 11.586774] R13: ffff880116c0a400 R14: 0000000000000000 R15:
0000000000000000
kernel: [ 11.586781] FS: 00007ff189d51800(0000) GS:ffff88011fc00000(0000)
knlGS:0000000000000000
kernel: [ 11.586791] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
kernel: [ 11.586798] CR2: 0000000000000010 CR3: 0000000116f31000 CR4:
00000000000007f0
kernel: [ 11.586805] Stack:
kernel: [ 11.586811] ffff880116ca9c28 0000000000000000 0000000000000000
ffff880116c3ee00
kernel: [ 11.586828] ffff880116ca9c68 ffffffffa00fd14a 0000000000000000
ffff880116c0a400
kernel: [ 11.586845] 00000000ffffffff ffffffffa0252de0 ffff880116ca9ca8
ffffffff8174d8ed
kernel: [ 11.586862] Call Trace:
kernel: [ 11.586876] [<ffffffffa00fd14a>] rpc_pipefs_event+0x6a/0xb0 [sunrpc]
kernel: [ 11.586887] [<ffffffff8174d8ed>] notifier_call_chain+0x4d/0x70
kernel: [ 11.586896] [<ffffffff8108ec18>]
__blocking_notifier_call_chain+0x58/0x80
kernel: [ 11.586905] [<ffffffff8108ec56>]
blocking_notifier_call_chain+0x16/0x20
kernel: [ 11.586923] [<ffffffffa0117f8c>] rpc_fill_super+0xfc/0x1b0 [sunrpc]
kernel: [ 11.586933] [<ffffffff811b7110>] ? set_anon_super+0x30/0x30
kernel: [ 11.586950] [<ffffffffa0117e90>] ? rpc_kill_sb+0x110/0x110 [sunrpc]
kernel: [ 11.586958] [<ffffffff811b80d5>] mount_ns+0xa5/0xe0
kernel: [ 11.586973] [<ffffffffa0116549>] rpc_mount+0x29/0x30 [sunrpc]
kernel: [ 11.586981] [<ffffffff811b8d33>] mount_fs+0x43/0x1b0
kernel: [ 11.586989] [<ffffffff811d29d3>] ? find_filesystem+0x63/0x80
kernel: [ 11.586997] [<ffffffff811d3cb6>] vfs_kern_mount+0x76/0x120
kernel: [ 11.587005] [<ffffffff811d5344>] do_new_mount+0xa4/0x1f0
kernel: [ 11.587013] [<ffffffff811d69a6>] do_mount+0x1e6/0x230
kernel: [ 11.587021] [<ffffffff811d6a80>] SyS_mount+0x90/0xe0
kernel: [ 11.587030] [<ffffffff8175241d>] system_call_fastpath+0x1a/0x1f
kernel: [ 11.587037] Code: 01 00 00 48 89 de 48 8b 50 20 e8 54 f5 ff ff 48 85
c0 0f 84 8c 00 00 00 48 3d 00 f0 ff ff 77 5e 48 8b 7b 58 48 89 83 b0 00 00 00
<48> 8b 47 10 48 8b 50 38 31 c0 48 85 d2 74 44 ff d2 85 c0 74 3e
kernel: [ 11.587178] RIP [<ffffffffa00fc618>]
__rpc_clnt_handle_event+0x48/0xd0 [sunrpc]
kernel: [ 11.587195] RSP <ffff880116ca9c18>
kernel: [ 11.587201] CR2: 0000000000000010
kernel: [ 11.587208] ---[ end trace 681c721bb0ea1d14 ]---
kernel: [ 12.104649] w83627ehf: Found W83627EHG chip at 0x290
kernel: [ 13.920406] ppdev: user-space parallel port driver
kernel: [ 13.983753] k8temp 0000:00:18.3: Temperature readouts might be wrong
- check erratum #141
kernel: [ 14.001296] shpchp: Standard Hot Plug PCI Controller Driver version:
0.4
** Affects: linux-lts-saucy (Ubuntu)
Importance: Undecided
Status: New
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https://bugs.launchpad.net/bugs/1310350
Title:
Oops __rpc_clnt_handle_event+0x48/0xd0
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