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Date:      Tue, 12 Jan 2010 19:53:25 -0800
From:      Tim Bisson <bissont@gmail.com>
To:        Kostik Belousov <kostikbel@gmail.com>
Cc:        freebsd-xen@freebsd.org
Subject:   Re: Can't boot 8/CURRENT hvm on Quad-Core Opteron 2352
Message-ID:  <E6D91DF9-98BC-478A-8B70-500009F29268@gmail.com>
In-Reply-To: <20100112093628.GH62907@deviant.kiev.zoral.com.ua>
References:  <BE5A8730-B0EA-4CE8-8C2F-B3DC7A5899EA@gmail.com> <20100112093628.GH62907@deviant.kiev.zoral.com.ua>

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On Jan 12, 2010, at 1:36 AM, Kostik Belousov wrote:

> On Mon, Jan 11, 2010 at 11:36:00PM -0800, Timothy Bisson wrote:
>> Hi,
>>=20
>> I'm trying to run a FreeBSD 8/CURRENT hvm on XEN, but booting FreeBSD =
=20
>> currently panics on a quad-core Operton 2352 box while booting from =20=

>> the iso (disabling ACPI doesn't help).
>>=20
>> However, I'm successful at running a FreeBSD 8/CURRENT hvm on XEN on =
a =20
>> Intel Xeon Nehalem box. I tried booting the same installed disk image =
=20
>> (from the Nehalem box) on the Operteron box, but that also resulted =
in =20
>> a panic while booting.
>>=20
>> The CURRENT iso I'm using is from:
>> =
ftp://ftp.freebsd.org/pub/FreeBSD/snapshots/201001/FreeBSD-9.0-CURRENT-201=
001-amd64-bootonly.iso
>>=20
>> I'm using Xen-3.3.1 on both physical boxes, and a BSD 6 hvm works on =20=

>> both the Nehalem and Operton boxes...
>>=20
>> Here's the backtrace from the opteron box:
>> kernel trap 9 with interrupts disabled
>>=20
>>=20
>> Fatal trap 9: general protection fault while in kernel mode
>> cpuid =3D 0; apic id =3D 00
>> instruction pointer	=3D 0x20:0xffffffff80878193
>> stack pointer	        =3D 0x28:0xffffffff81044bb0
>> frame pointer	        =3D 0x28:0xffffffff81044bc0
>> code segment		=3D base 0x0, limit 0xfffff, type 0x1b
>> 			=3D DPL 0, pres 1, long 1, def32 0, gran 1
>> processor eflags	=3D resume, IOPL =3D 0
>> current process		=3D 0 ()
>> [thread pid 0 tid 0 ]
>> Stopped at      pmap_invalidate_cache_range+0x43:       =20
>> clflushl        (%rdi)
>> db> bt
>> bt
>> Tracing pid 0 tid 0 td 0xffffffff80c51fc0
>> pmap_invalidate_cache_range() at pmap_invalidate_cache_range+0x43
>> pmap_change_attr_locked() at pmap_change_attr_locked+0x368
>> pmap_change_attr() at pmap_change_attr+0x43
>> pmap_mapdev_attr() at pmap_mapdev_attr+0x112
>> lapic_init() at lapic_init+0x29
>> madt_setup_local() at madt_setup_local+0x26
>> apic_setup_local() at apic_setup_local+0x13
>> mi_startup() at mi_startup+0x59
>> btext() at btext+0x2c
>>=20
>>=20
>> I took a look through the bug database and didn't see any similar =20
>> problem reports. Is it reasonable to file a bug report? Is there =20
>> additional information that I should be reporting?
>=20
> Set hw.clflush_disable=3D1 at the loader prompt.

Thank you. I should have read the Release Notes...=



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