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 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1310350 Title: Oops __rpc_clnt_handle_event+0x48/0xd0 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux-lts-saucy/+bug/1310350/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs