Kernel panic in 4.4.0-1028-gke

[Petr gregor]

Description: Ubuntu 16.04.2 LTS
Release: 16.04

Seems very similar to https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1687512

Running on google compute engine as kubernetes node.

[516083.665420] BUG: unable to handle kernel NULL pointer dereference at 0000000000000050
[516083.673740] IP: [<ffffffff810b49cd>] wakeup_preempt_entity.isra.56+0xd/0x50
[516083.681028] PGD 298cfa067 PUD 264f29067 PMD 0
[516083.686014] Oops: 0000 [#1] SMP
[516083.689677] Modules linked in: btrfs xor raid6_pq ufs msdos xfs libcrc32c rpcsec_gss_krb5 auth_rpcgss nfsv4 nfs lockd grace fscache sch_htb ebt_ip ebtable_filter ebtables veth xt_statistic xt_nat ipt_REJECT nf_reject_ipv4 xt_mark xt_comment xt_tcpudp ipt_MASQUERADE nf_nat_masquerade_ipv4 xfrm_user xfrm_algo iptable_nat nf_conntrack_ipv4 nf_defrag_ipv4 nf_nat_ipv4 xt_addrtype iptable_filter ip_tables xt_conntrack x_tables nf_nat br_netfilter bridge stp llc aufs ppdev crct10dif_pclmul crc32_pclmul ghash_clmulni_intel aesni_intel aes_x86_64 lrw gf128mul glue_helper ablk_helper cryptd psmouse parport_pc parport serio_raw pvpanic ib_iser rdma_cm iw_cm ib_cm ib_sa ib_mad ib_core ib_addr iscsi_tcp libiscsi_tcp libiscsi scsi_transport_iscsi sunrpc autofs4
[516083.765249] CPU: 2 PID: 0 Comm: swapper/2 Not tainted 4.4.0-1010-gke #10-Ubuntu
[516083.772754] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[516083.782162] task: ffff880b4b471b80 ti: ffff880b4b480000 task.ti: ffff880b4b480000
[516083.789840] RIP: 0010:[<ffffffff810b49cd>] [<ffffffff810b49cd>] wakeup_preempt_entity.isra.56+0xd/0x50
[516083.799535] RSP: 0000:ffff880b4b483db0 EFLAGS: 00010086
[516083.805033] RAX: ffff8800b9983000 RBX: 00005862b3be3cf1 RCX: 000000000d142e4c
[516083.812352] RDX: 00006b061d4663bf RSI: 0000000000000000 RDI: 00005862b3be3cf1
[516083.819683] RBP: ffff880b4b483db8 R08: ffff880b5228dca0 R09: 0000000000000000
[516083.827018] R10: 0000000107af8e7c R11: 0000000000000001 R12: 0000000000000000
[516083.834352] R13: 0000000000000000 R14: ffff880b52296e40 R15: ffff880b52296e40
[516083.841690] FS: 0000000000000000(0000) GS:ffff880b52280000(0000) knlGS:0000000000000000
[516083.849982] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[516083.855961] CR2: 0000000000000050 CR3: 00000001edea7000 CR4: 00000000001406e0
[516083.863307] Stack:
[516083.865509] ffff880b437ea800 ffff880b4b483de8 ffffffff810b4a81 ffff880b437eaa00
[516083.873586] ffff880b437ea800 ffff880b4b471b80 ffff880b52296e40 ffff880b4b483e58
[516083.881646] ffffffff810be059 ffff880b52296eb0 0000000000016e40 ffff880b4b483e90
[516083.889796] Call Trace:
[516083.892443] [<ffffffff810b4a81>] pick_next_entity+0x71/0x130
[516083.898404] [<ffffffff810be059>] pick_next_task_fair+0x79/0x4f0
[516083.904628] [<ffffffff8184b773>] __schedule+0x5f3/0xa30
[516083.910143] [<ffffffff81064606>] ? native_safe_halt+0x6/0x10
[516083.916092] [<ffffffff8184bbe5>] schedule+0x35/0x80
[516083.921264] [<ffffffff8184be8e>] schedule_preempt_disabled+0xe/0x10
[516083.927827] [<ffffffff810c43b1>] cpu_startup_entry+0x191/0x350
[516083.933956] [<ffffffff81051734>] start_secondary+0x154/0x190
[516083.939902] Code: 44 00 00 55 48 89 f7 48 89 e5 e8 cf fb ff ff 5d c3 0f 1f 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 55 48 89 e5 53 48 89 fb <48> 2b 5e 50 48 85 db 7e 2d 48 81 3e 00 04 00 00 8b 05 7d c8 d9
[516083.966877] RIP [<ffffffff810b49cd>] wakeup_preempt_entity.isra.56+0xd/0x50
[516083.974268] RSP <ffff880b4b483db0>
[516083.977951] CR2: 0000000000000050
[516083.982011] ---[ end trace 84cc7e6dbe9c1da1 ]---
[516083.986832] Kernel panic - not syncing: Fatal exception
[516085.027192] Shutting down cpus with NMI
[516085.031838] Kernel Offset: disabled
[516085.035539] Rebooting in 10 seconds..

ProblemType: Bug
DistroRelease: Ubuntu 16.04
Package: linux-gke 4.4.0.1028.29
ProcVersionSignature: Ubuntu 4.4.0-1028.28-gke 4.4.79
Uname: Linux 4.4.0-1028-gke x86_64
ApportVersion: 2.20.1-0ubuntu2.10
Architecture: amd64
Date: Mon Sep 18 11:30:42 2017
ProcEnviron:
 TERM=xterm-256color
 PATH=(custom, no user)
 LANG=en_US.UTF-8
 SHELL=/bin/bash
SourcePackage: linux-meta-gke
UpgradeStatus: No upgrade log present (probably fresh install)