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[Xen-devel] kernel bug,mm/slub.c

To: xen-devel <xen-devel@xxxxxxxxxxxxxxxxxxx>
Subject: [Xen-devel] kernel bug,mm/slub.c
From: yue <ooolinux@xxxxxxx>
Date: Fri, 22 Apr 2011 14:17:28 +0800 (CST)
Delivery-date: Thu, 21 Apr 2011 23:17:34 -0700
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kernel BUG at mm/slub.c:2969!
invalid opcode: 0000 [#1] SMP
last sysfs file: /sys/devices/system/cpu/cpu15/cache/index2/shared_cpu_map
Modules linked in: ocfs2 blktap fuse xt_temac nfs lockd fscache nfs_acl auth_rpcgss 8021q garp ip6table_filter ip6_                                                     tables ebtable_nat ebtables ipt_MASQUERADE iptable_nat nf_nat bridge stp llc ocfs2_dlmfs ocfs2_stack_o2cb ocfs2_dlm                                                      ocfs2_nodemanager ocfs2_stackglue configfs sunrpc ib_iser rdma_cm ib_cm iw_cm ib_sa ib_mad ib_core ib_addr ipv6 is                                                     csi_tcp libiscsi_tcp libiscsi scsi_transport_iscsi xen_netback xen_blkback blkback_pagemap xen_gntdev xen_evtchn xe                                                     nfs igb ioatdma dca i2c_i801 iTCO_wdt iTCO_vendor_support shpchp serio_raw joydev pata_acpi ata_generic usb_storage                                                      pata_jmicron megaraid_sas floppy radeon ttm drm_kms_helper drm i2c_algo_bit i2c_core [last unloaded: scsi_wait_sca                                                     n]
Pid: 10247, comm: sshd Not tainted #1 X8DTN
RIP: e030:[<ffffffff8110ed21>]  [<ffffffff8110ed21>] kfree+0x62/0xd4
RSP: e02b:ffff8801a46c3d68  EFLAGS: 00010246
RAX: 0040000000080000 RBX: ffff8801b19f2e40 RCX: 0000000000000003
RDX: ffffea0000000000 RSI: ffffea0003800000 RDI: ffff88010000000d
RBP: ffff8801a46c3d88 R08: 0000000000000000 R09: 0000000000000000
R10: ffff8801bd4932b8 R11: ffff8801a46c3d48 R12: ffff88010000000d
R13: ffffffff811eeaad R14: ffff8801b594d740 R15: ffff8801b5992ee0
FS:  00007f3c8806a7c0(0000) GS:ffff8800280e8000(0000) knlGS:0000000000000000
CS:  e033 DS: 0000 ES: 0000 CR0: 000000008005003b
CR2: 00007f3c84dc10f0 CR3: 0000000001001000 CR4: 0000000000002660
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
Process sshd (pid: 10247, threadinfo ffff8801a46c2000, task ffff88016a890000)
 ffff8801b19f2e40 ffff8801b19f2e40 0000000000000010 ffff8801b5992ee0
<0> ffff8801a46c3d98 ffffffff811eeaad ffff8801a46c3da8 ffffffff811e8551
<0> ffff8801a46c3df8 ffffffff8111e711 ffff8801b594d740 ffff8801c3716500
Call Trace:
 [<ffffffff811eeaad>] selinux_file_free_security+0x23/0x25
 [<ffffffff811e8551>] security_file_free+0x16/0x18
 [<ffffffff8111e711>] __fput+0x132/0x1dc
 [<ffffffff8111e7d5>] fput+0x1a/0x1c
 [<ffffffff810f609f>] remove_vma+0x56/0x8c
 [<ffffffff810f61e5>] exit_mmap+0x110/0x132
 [<ffffffff81054fbb>] mmput+0x5e/0xca
 [<ffffffff810599a3>] exit_mm+0x109/0x115
 [<ffffffff8105b47b>] do_exit+0x212/0x6f9
 [<ffffffff8145f495>] ? do_page_fault+0x2c2/0x2f2
 [<ffffffff8105b9e3>] do_group_exit+0x81/0xab
 [<ffffffff8105ba24>] sys_exit_group+0x17/0x1b
 [<ffffffff81012d32>] system_call_fastpath+0x16/0x1b
Code: 83 c3 08 48 83 3b 00 eb ec 49 83 fc 10 0f 86 82 00 00 00 4c 89 e7 e8 f7 e4 ff ff 48 89 c6 48 8b 00 84 c0 78 1                                                     4 66 a9 00 c0 75 04 <0f> 0b eb fe 48 89 f7 e8 aa 19 fd ff eb 5c 48 8b 4d 08 48 8b 7e
RIP  [<ffffffff8110ed21>] kfree+0x62/0xd4
 RSP <ffff8801a46c3d68>
---[ end trace ed0bf197d265871b ]---
Fixing recursive fault but reboot is needed!
--------------if i have to reboot?  what is the point?

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