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SubjectRe: 2.6.{26.2,27-rc} oops on virtualbox
Em Fri, 22 Aug 2008 08:50:12 +0200
Ingo Molnar <mingo@elte.hu> escreveu:

|
| * H. Peter Anvin <hpa@zytor.com> wrote:
|
| > H. Peter Anvin wrote:
| >>>
| >>> Does this look like a kernel bug?
| >>>
| >>
| >> No, it looks like a very common virtualizer bug. Does the attached
| >> patch work for you?
| >>
| >
| > Also, in addition to this, please try tip:master. There is a patch in
| > tip:master which I hope should fix this problem, but the details are
| > important.
|
| access coordinates would be at:
|
| http://people.redhat.com/mingo/tip.git/README

As I already have Linus tree downloaded I have cloned it in
the usual way.

Got the same results: OOPS in virtualbox but it works on QEMU.

The OOPS's output follows and I have attached the .config I'm using
to reproduce the problem.

"""
BUG: unable to handle kernel NULL pointer dereference at 00000246
IP: [<c01310f1>] vprintk+0x181/0x440
*pde = 00000000
Oops: 0002 [#1] SMP
Modules linked in:

Pid: 1, comm: swapper Not tainted (2.6.27-rc4-test24-tip #3)
EIP: 0060:[<c01310f1>] EFLAGS: 00010246 CPU: 0
EIP is at vprintk+0x181/0x440
EAX: 00000246 EBX: 00000000 ECX: c0130ca9 EDX: 0000dedd
ESI: c0474ae3 EDI: c04cf6bc EBP: c7435f24 ESP: c7435eb0
DS: 007b ES: 007b FS: 00d8 GS: 0000 SS: 0069
Process swapper (pid: 1, ti=c7434000 task=c7438000 task.ti=c7434000)
Stack: 0000dedd c0130ca9 c7435f40 00000000 a026104f a026106c c7434000 c7435ee6
00000006 00000246 00000000 a0260cf3 0000001c c7434000 00000282 00000046
c11a85a0 c7435efc c0135c6f c7435f14 c0115fcb a0296e91 c0104c2c 00000000
Call Trace:
[<c0130ca9>] ? release_console_sem+0x199/0x1e0
[<c0135c6f>] ? irq_exit+0x3f/0x90
[<c0115fcb>] ? smp_apic_timer_interrupt+0x5b/0x90
[<c0104c2c>] ? apic_timer_interrupt+0x28/0x30
[<c0474ae3>] ? net_ns_init+0x0/0x1ad
[<c0474ae3>] ? net_ns_init+0x0/0x1ad
[<c0346ed9>] ? printk+0x18/0x1f
[<c0474b00>] ? net_ns_init+0x1d/0x1ad
[<c0474ae3>] ? net_ns_init+0x0/0x1ad
[<c0101116>] ? do_one_initcall+0x26/0x170
[<c0128f66>] ? try_to_wake_up+0xc6/0x240
[<c012910f>] ? wake_up_process+0xf/0x20
[<c014192d>] ? start_workqueue_thread+0x1d/0x20
[<c0141d4b>] ? __create_workqueue_key+0x1eb/0x240
[<c0141820>] ? worker_thread+0x0/0xf0
[<c044b387>] ? kernel_init+0x141/0x214
[<c044b246>] ? kernel_init+0x0/0x214
[<c0104dc7>] ? kernel_thread_helper+0x7/0x10
=======================
Code: c0 0f 84 0b 01 00 00 b8 50 f1 41 c0 c7 05 ec f1 41 c0 ff ff ff ff e8 cf 8b 21 00 e8 ea 04 02 00 8b 45 b0 50 9d 0f 1f 84 00 00 00 <00> 00 8b 45 bc 83 c4 60 5b 5e 5f 5d c3 66 90 a1 ec f1 41 c0 e8
EIP: [<c01310f1>] vprintk+0x181/0x440 SS:ESP 0069:c7435eb0
---[ end trace 4eaa2a86a8e2da22 ]---
"""

--
Luiz Fernando N. Capitulino
[unhandled content-type:application/octet-stream]
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