Oracle Linux: UNABLE TO HANDLE KERNEL NULL POINTER IN "_SPIN

Asset ID:	1-72-2261887.1
Update Date:	2018-01-08
Keywords:

Solution Type Problem Resolution Sure

Solution 2261887.1 : Oracle Linux: UNABLE TO HANDLE KERNEL NULL POINTER IN "_SPIN_LOCK+0XE/0X25"

Applies to:

Linux OS - Version Oracle Linux 6.0 and later
Exalogic Elastic Cloud X3-2 Hardware - Version X3 to X3 [Release X3]
Information in this document applies to any platform.

Symptoms

Server rebooted and the following messages are seen:

kernel: BUG: unable to handle kernel NULL pointer dereference at (null)
kernel: IP: [<ffffffff81438d2a>] _spin_lock+0xe/0x25
kernel: PGD 0
kernel: Oops: 0002 [#1] SMP
kernel: last sysfs file: /sys/devices/pci0000:80/0000:80:00.0/0000:81:00.1/irq
kernel: CPU 59
kernel: Modules linked in: nfsd(U) exportfs(U) nfs(U) fscache(U) nfs_acl(U) auth_rpcgss(U) mptctl(U) mptbase(U) autofs4(U) ipmi_devintf(U) ipmi_si(U) ipmi_msghandler(U)
hidp(U) rfcomm(U) l2cap(U) bluetooth(U) rfkill(U) lockd(U) sunrpc(U) cpufreq_ondemand(U) acpi_cpufreq(U) freq_table(U) bonding(U) rdma_ucm(U) rds_tcp(U) rds_rdma(U) rds(U) rdma_cm(U) iw_cm(U) ib
_addr(U) ib_ipoib(U) ib_cm(U) ipv6(U) ib_uverbs(U) ib_umad(U) mlx4_vnic(U) mlx4_vnic_helper(U) ib_sa(U) mlx4_ib(U) mlx4_core(U) ib_mthca(U) ib_mad(U) ib_core(U) raid1(U) raid0(U) video(U) output
(U) sbs(U) sbshc(U) parport_pc(U) lp(U) parport(U) mpt2sas(U) raid_class(U) scsi_transport_sas(U) joydev(U) ixgbe(U) mdio(U) igb(U) dca(U) snd_seq_dummy(U) snd_seq_oss(U) snd_seq_midi_event(U) s
nd_seq(U) snd_seq_device(U) i2c_i801(U) iTCO_wdt(U) i2c_core(U) iTCO_vendor_support(U) snd_pcm_oss(U) snd_mixer_oss(U) snd_pcm(U) snd_timer(U) snd(U) soundcore(U) snd_page_alloc(U) pcspkr(U) qla
2xxx(U) scsi_transport_fc(U) scsi_tgt(U) ahci(U) shpchp(U)
kernel: megaraid_sas(U) uhci_hcd(U) ohci_hcd(U) ehci_hcd(U) [last unloaded: microcode]
kernel: Pid: 658, comm: kswapd1 Not tainted 2.6.32-100.23.1.el5 #1 SUN FIRE X4470 M2 SERVER
kernel: RIP: 0010:[<ffffffff81438d2a>] [<ffffffff81438d2a>] _spin_lock+0xe/0x25
kernel: RSP: 0018:ffff883f669ad9d0 EFLAGS: 00010246
kernel: RAX: 0000000000010000 RBX: 0000000000000000 RCX: 00000000000ea9bd
kernel: RDX: 0000000000000001 RSI: 0000000000000000 RDI: 0000000000000000
kernel: RBP: ffff883f669ad9d0 R08: ffff884080001c80 R09: ffff88c49695e718
kernel: R10: dead000000100100 R11: dead000000200200 R12: ffffea01017e4e28
kernel: R13: ffffffff81698f60 R14: ffffea01017e4e28 R15: 0000000000000001
kernel: FS: 0000000000000000(0000) GS:ffff8841618c0000(0000) knlGS:0000000000000000
kernel: CS: 0010 DS: 0018 ES: 0018 CR0: 000000008005003b
kernel: CR2: 0000000000000000 CR3: 0000000001001000 CR4: 00000000000006e0
kernel: DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
kernel: DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
kernel: Process kswapd1 (pid: 658, threadinfo ffff883f669ac000, task ffff883f66a7c680)
kernel: Stack:
kernel: ffff883f669ad9f0 ffffffff810f847d ffffffff810eadf1 0000000000000000
kernel: <0> ffff883f669ada30 ffffffff810f8eb1 00000000000ea913 0000000000000000
kernel: <0> ffffea01017e4e28 ffffffff81698f60 0000000000000001 ffff883f669ade10
kernel: Call Trace:
kernel: [<ffffffff810f847d>] page_lock_anon_vma+0x30/0x3b
kernel: [<ffffffff810eadf1>] ? __inc_zone_page_state+0x1b/0x1e
kernel: [<ffffffff810f8eb1>] try_to_unmap_anon+0x27/0xb8
kernel: [<ffffffff810f970a>] try_to_unmap+0x4a/0x73
kernel: [<ffffffff810e0d4c>] shrink_page_list+0x1d9/0x5c9
kernel: [<ffffffff81113dde>] ? __pfn_to_section+0x12/0x14
kernel: [<ffffffff81113e12>] ? lookup_page_cgroup+0x32/0x48
kernel: [<ffffffff811129bd>] ? mem_cgroup_del_lru_list+0x22/0x6c
kernel: [<ffffffff81112a57>] ? mem_cgroup_del_lru+0x20/0x24
kernel: [<ffffffff810e050d>] ? isolate_pages_global+0x9e/0x1ba
kernel: [<ffffffff810df9c0>] ? page_lru_base_type+0xe/0x1a
kernel: [<ffffffff810e018c>] ? clear_active_flags+0x37/0x76
kernel: [<ffffffff810e151e>] shrink_list+0x3e2/0x633
kernel: [<ffffffff810e1a36>] shrink_zone+0x2c7/0x376
kernel: [<ffffffff810d8e5c>] ? zone_watermark_ok+0x28/0xbf
kernel: [<ffffffff810e2db9>] kswapd+0x3b7/0x516
kernel: [<ffffffff810e046f>] ? isolate_pages_global+0x0/0x1ba
kernel: [<ffffffff810425b3>] ? need_resched+0x23/0x2d
kernel: [<ffffffff81075a7c>] ? autoremove_wake_function+0x0/0x3d
kernel: [<ffffffff810e2a02>] ? kswapd+0x0/0x516
kernel: [<ffffffff810756d3>] kthread+0x6e/0x76
kernel: [<ffffffff81012dea>] child_rip+0xa/0x20
kernel: [<ffffffff81075665>] ? kthread+0x0/0x76
kernel: [<ffffffff81012de0>] ? child_rip+0x0/0x20
kernel: Code: e5 0f 1f 44 00 00 fa 66 0f 1f 44 00 00 f0 81 2f 00 00 00 01 74 05 e8 96 f2 df ff c9 c3 55 48 89 e5 0f 1f 44 00 00 b8 00 00 01 00 <f0> 0f c1 07 0f b7 d0 c1
e8 10 39 c2 74 07 f3 90 0f b7 17 eb f5

Changes

No changes

Cause

BUG 14046035: UNABLE TO HANDLE KERNEL NULL POINTER IN "_SPIN_LOCK+0XE/0X25"

Solution

The fix is to update the kernel to 2.6.32-400.28.1 or higher.

The recommendation is to update to the latest available Kernel.

References

<BUG:14046035> - BUG: UNABLE TO HANDLE KERNEL NULL POINTER IN "_SPIN_LOCK+0XE/0X25" ON OL5 GUEST

Attachments

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