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UEK2 kernel panic at RIP: hugetlb_vm_op_close+0x88/0x100 (Doc ID 2171676.1)

Last updated on FEBRUARY 20, 2019

Applies to:

Linux OS - Version Oracle Linux 6.1 with Unbreakable Enterprise Kernel [2.6.39] to Oracle Linux 6.6 with Unbreakable Enterprise Kernel [2.6.39] [Release OL6U1 to OL6U6]
Oracle Cloud Infrastructure - Version N/A and later
Linux x86-64

Symptoms

UEK2 kernel panic:

BUG: unable to handle kernel NULL pointer dereference at 000000000000001a
IP: [<ffffffff8114f5c8>] hugetlb_vm_op_close+0x88/0x100
PGD 0
Oops: 0000 [#1] SMP
CPU 1
Modules linked in: iptable_filter ip_tables ovmapi autofs4 nfs lockd fscache auth_rpcgss nfs_acl sunrpc rdma_ucm(U) ib_sdp(U) rdma_cm(U) iw_cm(U) ib_addr(U) bonding ib_ipoib(U) ib_cm(U) ipv6 ib_uverbs(U) ib_umad(U) mlx4_vnic(U) mlx4_vnic_helper(U) mlx4_ib(U) ib_sa(U) ib_mad(U) ib_core(U) mlx4_core(U) ppdev microcode parport_pc parport pcspkr i2c_piix4 i2c_core ext4 mbcache jbd2 xen_blkfront floppy pata_acpi ata_generic ata_piix dm_mirror dm_region_hash dm_log dm_mod [last unloaded: scsi_wait_scan]

Pid: 15994, comm: java Not tainted 2.6.39-400.250.1.el6uek.x86_64 #1 Xen HVM domU
RIP: 0010:[<ffffffff8114f5c8>] [<ffffffff8114f5c8>] hugetlb_vm_op_close+0x88/0x100
RSP: 0018:ffff880247421ba8 EFLAGS: 00010282
RAX: 0000000000000000 RBX: ffffffff81d361e0 RCX: 0000000000000001
RDX: 0000000000000002 RSI: 0000000000000000 RDI: ffff880305f6a380
RBP: ffff880247421bc8 R08: ffff880305f6a388 R09: 0000000000000001
R10: ffff8800a342d1d0 R11: 0000000000014030 R12: 0000000000000000
R13: 0000000000000001 R14: 00000000ff88d000 R15: ffff880306602c00
FS: 0000000000000000(0000) GS:ffff88058fc20000(0000) knlGS:0000000000000000
CS: 0010 DS: 002b ES: 002b CR0: 000000008005003b
CR2: 000000000000001a CR3: 0000000001787000 CR4: 00000000001006e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
Process java (pid: 15994, threadinfo ffff880247420000, task ffff88035e9da500)
Stack:
ffff8800c7147768 ffff8802b3d04ef8 ffff880569504e48 ffff880247421bf8
ffff880247421be8 ffffffff8113c383 ffff880569504e48 ffff880306602c00
ffff880247421c98 ffffffff8113c4b8 ffff880306602c00 0000000100000040
Call Trace:
[<ffffffff8113c383>] remove_vma+0x33/0x90
[<ffffffff8113c4b8>] exit_mmap+0xd8/0x140
[<ffffffff8106c3c1>] mmput+0x61/0xf0
[<ffffffff81072b2f>] exit_mm+0x12f/0x170
[<ffffffff810e0c8b>] ? taskstats_exit+0x17b/0x240
[<ffffffff81072ce9>] do_exit+0x179/0x460
[<ffffffff810a45bf>] ? __unqueue_futex+0x3f/0x80
[<ffffffff81073025>] do_group_exit+0x55/0xd0
[<ffffffff810847bf>] get_signal_to_deliver+0x21f/0x480
[<ffffffff810159f9>] do_signal+0x69/0x190
[<ffffffff810d012b>] ? audit_syscall_exit+0x25b/0x290
[<ffffffff81015b85>] do_notify_resume+0x65/0x80
[<ffffffff81515a10>] int_signal+0x12/0x17
Code: 8d 47 08 4c 8b 6a 10 4c 2b 6a 08 45 31 c9 48 8b 57 08 48 d3 e8 83 c1 0c 49 d3 ed 31 c9 49 01 c5 49 39 d0 74 39 66 0f 1f 44 00 00
8> 8b 4a 18 48 39 c8 7d 1f 48 8b 72 10 49 39 f5 7e 1e 49 39 cd
RIP [<ffffffff8114f5c8>] hugetlb_vm_op_close+0x88/0x100
RSP <ffff880247421ba8>
CR2: 000000000000001a
---[ end trace 0aac6811a336a0a9 ]---
Kernel panic - not syncing: Fatal exception
Pid: 15994, comm: java Tainted: G D 2.6.39-400.250.1.el6uek.x86_64 #1
Call Trace:
[<ffffffff8150a35a>] panic+0xa6/0x1bd
[<ffffffff8150e4fc>] oops_end+0xdc/0xf0
[<ffffffff8104854c>] no_context+0xfc/0x190
[<ffffffff81048675>] __bad_area_nosemaphore+0x95/0x1e0
[<ffffffff810487d3>] bad_area_nosemaphore+0x13/0x20
[<ffffffff81511078>] do_page_fault+0x328/0x470
[<ffffffff810dcf15>] ? call_rcu_sched+0x15/0x20
[<ffffffff811e2dc5>] ? hugetlbfs_destroy_inode+0x65/0x80
[<ffffffff81186a3c>] ? destroy_inode+0x3c/0x70
[<ffffffff8118700f>] ? evict+0xdf/0x180
[<ffffffff8150da55>] page_fault+0x25/0x30
[<ffffffff8114f5c8>] ? hugetlb_vm_op_close+0x88/0x100
[<ffffffff8113c383>] remove_vma+0x33/0x90
[<ffffffff8113c4b8>] exit_mmap+0xd8/0x140
[<ffffffff8106c3c1>] mmput+0x61/0xf0
[<ffffffff81072b2f>] exit_mm+0x12f/0x170
[<ffffffff810e0c8b>] ? taskstats_exit+0x17b/0x240
[<ffffffff81072ce9>] do_exit+0x179/0x460
[<ffffffff810a45bf>] ? __unqueue_futex+0x3f/0x80
[<ffffffff81073025>] do_group_exit+0x55/0xd0
[<ffffffff810847bf>] get_signal_to_deliver+0x21f/0x480
[<ffffffff810159f9>] do_signal+0x69/0x190
[<ffffffff810d012b>] ? audit_syscall_exit+0x25b/0x290
[<ffffffff81015b85>] do_notify_resume+0x65/0x80
[<ffffffff81515a10>] int_signal+0x12/0x17

 

Cause

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In this Document
Symptoms
Cause
Solution
References


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