Re: [Xen-users] 3.0.4 Early fatal page fault

[Russ Blaine <russell.blaine@xxxxxxx>]

I have seen the same thing. The output from a debug build of Xen is:

l210-3_4-20050802)) Mon Feb  5 06:44:14 PST 2007 is highlighted.
 Latest ChangeSet: Mon Feb 05 06:40:50 2007 -0800 13177:14c648dc16ef 

      commands before booting, or 'c' for a command-line. 

(XEN) Command line: /boot/amd64/xen.gz dom0_mem=1524288 console=com1 
com1=9600,8n1 

(XEN) Physical RAM map:
(XEN)  0000000000000000 - 000000000009ac00 (usable)
(XEN)  000000000009ac00 - 00000000000a0000 (reserved)
(XEN)  00000000000e0000 - 0000000000100000 (reserved)
(XEN)  0000000000100000 - 00000000f9ff0000 (usable)
(XEN)  00000000f9ff0000 - 00000000f9ffe000 (ACPI data)
(XEN)  00000000f9ffe000 - 00000000fa000000 (ACPI NVS)
(XEN)  00000000ff700000 - 0000000100000000 (reserved)
(XEN)  0000000100000000 - 0000000400000000 (usable)
(XEN) System RAM: 16287MB (16678440kB)
(XEN) ACPI: RSDP (v002 SUN                                   ) @ 
0x00000000000f6fb0
(XEN) ACPI: XSDT (v001 SUN    X4500    0x00000015 MSFT 0x00000097) @ 
0x00000000f9ff0100
(XEN) ACPI: FADT (v003 SUN    X4500    0x00000015 MSFT 0x00000097) @ 
0x00000000f9ff0290
(XEN) ACPI: MADT (v001 SUN    X4500    0x00000015 MSFT 0x00000097) @ 
0x00000000f9ff0390
(XEN) ACPI: SLIT (v001 SUN    X4500    0x00000015 MSFT 0x00000097) @ 
0x00000000f9ff04c0
(XEN) ACPI: SPCR (v001 SUN    X4500    0x00000015 MSFT 0x00000097) @ 
0x00000000f9ff0470
(XEN) ACPI: OEMB (v001 SUN    X4500    0x00000015 MSFT 0x00000097) @ 
0x00000000f9ffe040
(XEN) ACPI: SRAT (v001 SUN    X4500    0x00000015 MSFT 0x00000097) @ 
0x00000000f9ff4a80
(XEN) ACPI: DSDT (v001 SUN    X4500    0x00000015 INTL 0x02002026) @ 
0x0000000000000000
(XEN) Early fatal page fault at 1f3928:ffff830000124724 
(cr2=ffff8300f9ff04e4, ec=0000)
(XEN) BUG at /export/xen-clone/xen.hg/xen/include/asm/spinlock.h:37
(XEN) Unknown interrupt

That corresponds to the first ASSERT() below:

static inline void _raw_spin_unlock(spinlock_t *lock)
{
#if !defined(CONFIG_X86_OOSTORE)
    ASSERT(spin_is_locked(lock));
    __asm__ __volatile__ (
        "movb $1,%0"
        : "=m" (lock->lock) : : "memory" );
#else
    char oldval = 1;
    ASSERT(spin_is_locked(lock));
    __asm__ __volatile__ (
        "xchgb %b0, %1"
        : "=q" (oldval), "=m" (lock->lock) : "0" (oldval) : "memory" );
#endif
}

Adding acpi=off to the xen command line seems to work here as well.



John Hannfield wrote:
> Hello,
> I'm trying to install Xen on a dual Opteron (dual core) system. It
> runs fine on a Fedora or Ubuntu kernel, but neither the xen binary
> install or source install will boot. It seems to be a problem with
> ACPI or APIC. Here is my console bootlog:
>
> * Ubuntu, kernel 2.6.15-26-amd64-server
>   *    
>                           kernel /boot/xen-3.0.gz
> com1=115200,8n1 console=vga,com1                        
> [Multiboot-elf, <0x100000:0x9e898:0x5a768>, shtab=0x1f9078,
> entry=0x100000]   module /boot/vmlinuz-2.6.16.33-xen_test6
> root=/dev/sda1 ro console=tty0 console  =ttyS0
>                                                         
>
>                                            __  __
> _____  ___  _  _      _
> \ \/ /___ _ __   |___ / / _ \| || |    / |
>  \  // _ \ '_ \    |_ \| | | | || |_ __| |
>  /  \  __/ | | |  ___) | |_| |__   _|__| |
> /_/\_\___|_| |_| |____(_)___(_) |_|    |_|
>
> http://www.cl.cam.ac.uk/netos/xen
> University of Cambridge Computer Laboratory
>
> Xen version 3.0.4-1 (root@) (gcc version 4.0.3 (Ubuntu
> 4.0.3-1ubuntu5)) Fri Feb 16 15:30:33 GMT 2007
> Latest ChangeSet: unavailable
>
> (XEN) Command line: /boot/xen-3.0.gz com1=115200,8n1 console=vga,com1
> (XEN) Physical RAM map:
> (XEN)  0000000000000000 - 000000000009dc00 (usable)
> (XEN)  000000000009dc00 - 00000000000a0000 (reserved)
> (XEN)  00000000000e0000 - 0000000000100000 (reserved)
> (XEN)  0000000000100000 - 000000007fff0000 (usable)
> (XEN)  000000007fff0000 - 000000007fffe000 (ACPI data)
> (XEN)  000000007fffe000 - 0000000080000000 (ACPI NVS)
> (XEN)  00000000e0000000 - 00000000f0000000 (reserved)
> (XEN)  00000000fec00000 - 00000000fec01000 (reserved)
> (XEN)  00000000fee00000 - 00000000fef00000 (reserved)
> (XEN)  00000000ff700000 - 0000000100000000 (reserved)
> (XEN) System RAM: 2047MB (2096692kB)
> (XEN) ACPI: RSDP (v002 ACPIAM                                ) @
> 0x00000000000f9480
> (XEN) ACPI: XSDT (v001 A M I  OEMXSDT  0x12000614 MSFT 0x00000097) @
> 0x000000007fff0100
> (XEN) ACPI: FADT (v003 A M I  OEMFACP  0x12000614 MSFT 0x00000097) @
> 0x000000007fff0290
> (XEN) ACPI: MADT (v001 A M I  OEMAPIC  0x12000614 MSFT 0x00000097) @
> 0x000000007fff0390
> (XEN) ACPI: SPCR (v001 A M I  OEMSPCR  0x12000614 MSFT 0x00000097) @
> 0x000000007fff0410
> (XEN) ACPI: SLIT (v001 A M I  OEMSLIT  0x12000614 MSFT 0x00000097) @
> 0x000000007fff04a0
> (XEN) ACPI: OEMB (v001 A M I  AMI_OEM  0x12000614 MSFT 0x00000097) @
> 0x000000007fffe040
> (XEN) ACPI: HPET (v001 A M I  OEMHPET0 0x12000614 MSFT 0x00000097) @
> 0x000000007fff54d0
> (XEN) ACPI: SRAT (v001 AMD    HAMMER   0x00000001 AMD  0x00000001) @
> 0x000000007fff5510
> (XEN) ACPI: SSDT (v001 A M I  POWERNOW 0x00000001 AMD  0x00000001) @
> 0x000000007fff5600
> (XEN) ACPI: DSDT (v001  DATER DATER111 0x00000111 INTL 0x20051117) @
> 0x0000000000000000
> (XEN)
> (XEN) ****************************************
> (XEN) Panic on CPU 0:
> (XEN) Early fatal page fault at e010:ffff830000170890
> (cr2=ffff83007fff04c4, ec=0000)
> (XEN) ****************************************
> (XEN)
> (XEN) Reboot in five seconds...
> (XEN) Unknown interrupt
>
> I have tried adding   acpi=off   or acpi=noirq  to the xen command
> line, but it doesn't
> seem to make any difference. Does this look like an ACPI error, or
> could it be APIC?
>
> Any ideas how to troubleshoot it further?
>
> Thanks,
--

-----------------------------------------------------
Russ Blaine | Solaris Kernel | russell.blaine@xxxxxxx

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