Message-ID: <d3fcc9d3c5765250d0fcb6e9ee45d672@pl1.haspere.com>
Date:	Tue, 17 Jan 2012 23:22:29 -0600
From:	Dyweni - KVM <n2CpHSJnr4MP@...eni.com>
To:	KVM <kvm@...r.kernel.org>, Qemu Devel <qemu-devel@...gnu.org>,
	Oprofile-List <oprofile-list@...ts.sourceforge.net>,
	Linux-Kernel <linux-kernel@...r.kernel.org>
Subject: Re: [Qemu-devel] general protection fault

 Hi All,

 I'm getting a very similar error when running oprofile on the 
 host...same version of oprofile...



 general protection fault: 0000 [#1] PREEMPT SMP
 CPU 5
 Modules linked in: iscsi_tcp libiscsi_tcp libiscsi scsi_transport_iscsi 
 vboxnetadp vboxnetflt vboxdrv nvidia(P)

 Pid: 1498, comm: oprofiled Tainted: P            
 3.1.6-gentoo-20120114-0749 #1 MSI MS-7578/NF750-G55 (MS-7578)
 RIP: 0010:[<ffffffff81093758>]  [<ffffffff81093758>] 
 raw_notifier_chain_register+0x18/0x40
 RSP: 0018:ffff88022ed4dbb8  EFLAGS: 00010206
 RAX: 65526d6562574955 RBX: ffffffff8172b4b0 RCX: ffffffff81733ff8
 RDX: 0000000000000000 RSI: ffffffff8172b4b0 RDI: ffffffff817ae968
 RBP: ffff88022ed4dbb8 R08: ffffffff81734ef0 R09: 0000000000000000
 R10: 00003ffffffff000 R11: 0000160000000000 R12: ffffffff81734ef0
 R13: 000000000000e160 R14: ffffffff8172b520 R15: 0000000000000005
 FS:  00007f7179020700(0000) GS:ffff88033fd40000(0000) 
 knlGS:00000000f75a36c0
 CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
 CR2: 000000000062a000 CR3: 0000000327cd8000 CR4: 00000000000006e0
 DR0: 0000000000000001 DR1: 0000000000000002 DR2: 0000000000000001
 DR3: 000000000000000a DR6: 00000000ffff0ff0 DR7: 0000000000000400
 Process oprofiled (pid: 1498, threadinfo ffff88022ed4c000, task 
 ffff880331635eb0)
 Stack:
  ffff88022ed4dbe8 ffffffff814fa020 ffff88022ed4dbe8 ffffffff81093dc0
  000000000000e160 0000000000000000 ffff88022ed4dc48 ffffffff81470325
  ffff88032a5724a8 0000000000000005 ffff88033fd40000 00000008810f95d0
 Call Trace:
  [<ffffffff814fa020>] register_cpu_notifier+0x20/0x40
  [<ffffffff81093dc0>] ? register_die_notifier+0x20/0x30
  [<ffffffff81470325>] nmi_setup+0x1d5/0x200
  [<ffffffff8146e830>] ? event_buffer_release+0x50/0x50
  [<ffffffff8146d109>] oprofile_setup+0x39/0xd0
  [<ffffffff8146e890>] event_buffer_open+0x60/0xa0
  [<ffffffff81119de0>] ? file_sb_list_add+0x50/0x60
  [<ffffffff8111685e>] __dentry_open.clone.17+0x12e/0x330
  [<ffffffff81117a2e>] nameidata_to_filp+0x4e/0x60
  [<ffffffff81126ac2>] do_last+0x1b2/0x8f0
  [<ffffffff81127313>] path_openat+0xd3/0x3c0
  [<ffffffff81127714>] do_filp_open+0x44/0xa0
  [<ffffffff81133724>] ? alloc_fd+0xe4/0x130
  [<ffffffff81117b3c>] do_sys_open+0xfc/0x1d0
  [<ffffffff81117c2b>] sys_open+0x1b/0x20
  [<ffffffff8150763b>] system_call_fastpath+0x16/0x1b
 Code: 5b 41 5c 41 5d 41 5e 41 5f c9 c3 31 c0 eb ed 0f 1f 40 00 55 48 8b 
 07 48 89 e5 48 85 c0 74 1e 8b 56 10 3b 50 10 7e 09 eb 14 66 90
  50 10 7c 0d 48 8d 78 08 48 8b 40 08 48 85 c0 75 ee 48 89 46
 RIP  [<ffffffff81093758>] raw_notifier_chain_register+0x18/0x40
  RSP <ffff88022ed4dbb8>
 ---[ end trace 8dcb6b8322e14541 ]---





 ---
 Thanks,
 Dyweni

 On Tue, 17 Jan 2012 22:40:58 -0600, Dyweni - KVM wrote:

> Hi All,
>
> I'm not sure who this falls to, so I've included all all parties that 
> I
> thought may be relevant.
>
> I'm getting the following error from my guest kernel when running
> oprofile within qemu-kvm:
>
> general protection fault: 0000 [#1]
> Modules linked in:
>
> Pid: 896, comm: oprofiled Not tainted 3.2.0-rc7-20120117-0605 #1 
> Bochs
> Bochs
> EIP: 0060:[] EFLAGS: 00010086 CPU: 0
> EIP is at nmi_cpu_setup.clone.6+0x2e/0xb0
> EAX: 00000000 EBX: df89894c ECX: c0010005 EDX: 00000000
> ESI: 00000001 EDI: c168e5c0 EBP: df8addf4 ESP: df8adde4
> DS: 007b ES: 007b FS: 0000 GS: 0033 SS: 0068
> Process oprofiled (pid: 896, ti=df8ac000 task=df82f780
> task.ti=df8ac000)
> Stack:
> df898980 00000004 fffffff0 d4520880 df8ade08 c1406d4b c1618dfa
> 00000000
> 00000000 df8ade14 c140464f dc792de0 df8ade28 c1405963 d4520880
> dc792de0
> 00000000 df8ade4c c1111bfa c111c7fe df84c000 df8ade44 dc77ef80
> df8adeec
> Call Trace:
> [] nmi_setup+0xab/0xd0
> [] oprofile_setup+0x2f/0xb0
> [] event_buffer_open+0x63/0x90
> [] __dentry_open.clone.17+0x1aa/0x2d0
> [] ? do_lookup+0x3e/0x370
> [] nameidata_to_filp+0x52/0x70
> [] ? event_buffer_release+0x40/0x40
> [] do_last+0x1e6/0x740
> [] path_openat+0x9a/0x320
> [] ? page_add_new_anon_rmap+0x74/0x80
> [] do_filp_open+0x30/0x80
> [] ? alloc_fd+0x2c/0xd0
> [] do_sys_open+0xeb/0x1c0
> [] sys_open+0x29/0x40
> [] sysenter_do_call+0x12/0x22
> Code: 57 56 53 83 ec 04 a1 90 e5 68 c1 8b 3d 44 a5 78 c1 8b 1d 8c e5 
> 68
> c1 89 45 f0 8b 07 85 c0 74 1d 31 f6 8d 76 00 8b 0b 85 c9 74 08 32
> 89 43 04 89 53 08 83 c6 01 83 c3 0c 3b 37 72 e8 8b 77 04
> EIP: [] nmi_cpu_setup.clone.6+0x2e/0xb0 SS:ESP 0068:df8adde4
> ---[ end trace e22f1adcb9f592c1 ]---
>
> My setup is:
>
> QEMU-KVM = 0.14.1-r2
> Host Linux Kernel = 3.1.6
> Guest Linux Kernel = 3.2-rc7
> OProfile = 0.9.6-r1
>
> --
> Thanks,
> Dyweni
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