NULL pointer dereference triggered by openvswitch autopkg testcase
Affects | Status | Importance | Assigned to | Milestone | |
---|---|---|---|---|---|
linux (Ubuntu) |
Fix Released
|
Undecided
|
Unassigned | ||
Trusty |
Fix Released
|
Undecided
|
Unassigned |
Bug Description
Trusty kernel 3.13.0-124.173, current on -proposed, has a regression introduced by the patches for bug #1690094.
This is causing the openvswitch autopkgtest testcase to hang:
https:/
because of the following kernel bug:
=======
[ 16.371056] random: nonblocking pool is initialized
[ 22.187846] gre: GRE over IPv4 demultiplexor driver
[ 22.190604] openvswitch: Open vSwitch switching datapath
[ 27.919352] gre: GRE over IPv4 demultiplexor driver
[ 27.920959] openvswitch: Open vSwitch switching datapath
[ 28.230062] IPv6: ADDRCONF(
[ 28.255859] IPv6: ADDRCONF(
[ 28.294253] IPv6: ADDRCONF(
[ 28.310647] IPv6: ADDRCONF(
[ 28.341512] IPv6: ADDRCONF(
[ 28.358174] IPv6: ADDRCONF(
[ 28.386774] IPv6: ADDRCONF(
[ 28.402249] IPv6: ADDRCONF(
[ 28.431979] IPv6: ADDRCONF(
[ 28.446848] IPv6: ADDRCONF(
[ 28.482404] IPv6: ADDRCONF(
[ 28.498450] IPv6: ADDRCONF(
[ 28.530356] IPv6: ADDRCONF(
[ 28.546206] IPv6: ADDRCONF(
[ 28.578384] IPv6: ADDRCONF(
[ 28.594164] IPv6: ADDRCONF(
[ 28.623885] IPv6: ADDRCONF(
[ 28.642570] IPv6: ADDRCONF(
[ 28.669156] IPv6: ADDRCONF(
[ 28.683255] IPv6: ADDRCONF(
[ 28.716490] IPv6: ADDRCONF(
[ 28.734239] IPv6: ADDRCONF(
[ 28.763779] IPv6: ADDRCONF(
[ 28.782221] IPv6: ADDRCONF(
[ 28.810559] IPv6: ADDRCONF(
[ 28.826181] IPv6: ADDRCONF(
[ 28.856232] IPv6: ADDRCONF(
[ 28.875082] IPv6: ADDRCONF(
[ 28.901120] IPv6: ADDRCONF(
[ 28.909372] IPv6: ADDRCONF(
[ 28.986164] device ovs-system entered promiscuous mode
[ 29.001788] device s1 entered promiscuous mode
[ 29.021015] BUG: unable to handle kernel NULL pointer dereference at 00000000000000a8
[ 29.021600] IP: [<ffffffff8163f
[ 29.021990] PGD 3bfec067 PUD 36c7e067 PMD 0
[ 29.022303] Oops: 0000 [#1] SMP
[ 29.022540] Modules linked in: veth openvswitch gre vxlan ip_tunnel libcrc32c 9p ppdev kvm_intel kvm 9pnet_virtio serio_raw 9pnet parport_pc parport i2c_piix4 mac_hid psmouse floppy pata_acpi [last unloaded:]
[ 29.023992] CPU: 0 PID: 2255 Comm: ovs-vswitchd Not tainted 3.13.0-124-generic #173-Ubuntu
[ 29.024012] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.10.2-1ubuntu1 04/01/2014
[ 29.024012] task: ffff88003d5f1800 ti: ffff880036c7c000 task.ti: ffff880036c7c000
[ 29.024012] RIP: 0010:[<
[ 29.024012] RSP: 0018:ffff880036
[ 29.024012] RAX: ffff88003bb41000 RBX: ffff88003ac9b000 RCX: 00000000000000d0
[ 29.024012] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff88003ac9b000
[ 29.024012] RBP: ffff880036c7d888 R08: 0000000000000000 R09: 0000000000000000
[ 29.024012] R10: 00000000000044ed R11: 006d65747379732d R12: 0000000000000344
[ 29.024012] R13: 0000000000000000 R14: ffffffffa011c000 R15: 0000000000000014
[ 29.024012] FS: 00007f2a595e398
[ 29.024012] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 29.024012] CR2: 00000000000000a8 CR3: 000000003d5ff000 CR4: 00000000000006f0
[ 29.024012] Stack:
[ 29.024012] ffff88003bb41000 0000000000000000 00000000000000d0 0000000000000010
[ 29.024012] ffffffff81cdaf00 0000000000000000 ffff88003ac9b000 ffff880036c7d8d8
[ 29.024012] ffffffff81642f82 735f7265776f6cfa ff00316874652d31 ffff88003ac9b000
[ 29.024012] Call Trace:
[ 29.024012] [<ffffffff81642
[ 29.024012] [<ffffffff81643
[ 29.024012] [<ffffffff81643
[ 29.024012] [<ffffffff81739
[ 29.024012] [<ffffffff81093
[ 29.024012] [<ffffffff8162b
[ 29.024012] [<ffffffff81631
[ 29.024012] [<ffffffff81631
[ 29.024012] [<ffffffffa0155
[ 29.024012] [<ffffffffa0154
[ 29.024012] [<ffffffffa014c
[ 29.024012] [<ffffffffa014e
[ 29.024012] [<ffffffff8165f
[ 29.024012] [<ffffffff8165f
[ 29.024012] [<ffffffff8165f
[ 29.024012] [<ffffffff8165d
[ 29.024012] [<ffffffff8165d
[ 29.024012] [<ffffffff8165d
[ 29.024012] [<ffffffff8165d
[ 29.024012] [<ffffffff8165a
[ 29.024012] [<ffffffff8165b
[ 29.024012] [<ffffffff81616
[ 29.024012] [<ffffffff81632
[ 29.024012] [<ffffffff81634
[ 29.024012] [<ffffffff81636
[ 29.024012] [<ffffffff81616
[ 29.024012] [<ffffffff8163e
[ 29.024012] [<ffffffff81645
[ 29.024012] [<ffffffff8165b
[ 29.024012] [<ffffffff8165c
[ 29.024012] [<ffffffff81613
[ 29.024012] [<ffffffff81613
[ 29.024012] [<ffffffff81617
[ 29.024012] [<ffffffff81617
[ 29.024012] [<ffffffff8173e
[ 29.024012] Code: c0 74 10 48 89 df ff d0 83 c0 07 83 e0 fc 48 98 49 01 c7 48 89 df e8 45 b5 fe ff 48 85 c0 0f 84 e9 00 00 00 48 8b 90 08 07 00 00 <48> 8b 8a a8 00 00 00 31 d2 48 85 c9 74 0c 48 89 de 48 89 c
[ 29.024012] RIP [<ffffffff8163f
[ 29.024012] RSP <ffff880036c7d850>
[ 29.024012] CR2: 00000000000000a8
[ 29.046589] ---[ end trace 19b0345dcdf6940a ]---
=======
---
AlsaVersion: Advanced Linux Sound Architecture Driver Version k3.13.0-
AplayDevices: Error: [Errno 2] No such file or directory
ApportVersion: 2.14.1-0ubuntu3.24
Architecture: amd64
ArecordDevices: Error: [Errno 2] No such file or directory
AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/by-path', '/dev/snd/
Card0.Amixer.info: Error: [Errno 2] No such file or directory
Card0.Amixer.
DistroRelease: Ubuntu 14.04
IwConfig: Error: [Errno 2] No such file or directory
Lsusb:
Bus 001 Device 002: ID 0627:0001 Adomax Technology Co., Ltd
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 004 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 002 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
MachineType: QEMU Standard PC (i440FX + PIIX, 1996)
Package: linux (not installed)
ProcEnviron:
TERM=xterm-
PATH=(custom, no user)
LANG=en_US.UTF-8
SHELL=/bin/bash
ProcFB: 0 qxldrmfb
ProcKernelCmdLine: BOOT_IMAGE=
ProcVersionSign
RelatedPackageV
linux-
linux-
linux-firmware 1.127.23
RfKill: Error: [Errno 2] No such file or directory
Tags: trusty
Uname: Linux 3.13.0-124-generic x86_64
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups:
_MarkForUpload: True
dmi.bios.date: 04/01/2014
dmi.bios.vendor: SeaBIOS
dmi.bios.version: 1.10.2-1ubuntu1
dmi.chassis.type: 1
dmi.chassis.vendor: QEMU
dmi.chassis.
dmi.modalias: dmi:bvnSeaBIOS:
dmi.product.name: Standard PC (i440FX + PIIX, 1996)
dmi.product.
dmi.sys.vendor: QEMU
Changed in linux (Ubuntu): | |
status: | Incomplete → In Progress |
status: | In Progress → Fix Committed |
description: | updated |
Changed in linux (Ubuntu Trusty): | |
status: | New → Fix Committed |
Changed in linux (Ubuntu): | |
status: | Fix Committed → Fix Released |
This bug is missing log files that will aid in diagnosing the problem. While running an Ubuntu kernel (not a mainline or third-party kernel) please enter the following command in a terminal window:
apport-collect 1703401
and then change the status of the bug to 'Confirmed'.
If, due to the nature of the issue you have encountered, you are unable to run this command, please add a comment stating that fact and change the bug status to 'Confirmed'.
This change has been made by an automated script, maintained by the Ubuntu Kernel Team.