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Re: [Fedora-xen] Xen 3.4.1 dom0 crash on boot



On Mon, Sep 14, 2009 at 09:44:25PM -0400, Charles Gruener wrote:
> I have an ASRock X58 SuperComputer motherboard that refuses to boot  
> the latest xen-3.4.1 in Rawhide.
> 
> This is the motherboard: 
> http://www.asrock.com/mb/overview.asp?Model=X58%20SuperComputer
> 
> Here is a capture of the boot process:
> 
> (XEN) Bad console= option 'tty'

You should remove that unsupported 'tty' option.

> (XEN) *** LOADING DOMAIN 0 ***
> (XEN)  Xen  kernel: 64-bit, lsb, compat32
> (XEN)  Dom0 kernel: 64-bit, PAE, lsb, paddr 0x1000000 -> 0x2695000
> (XEN) PHYSICAL MEMORY ARRANGEMENT:
> (XEN)  Dom0 alloc.:   00000001b4000000->00000001b8000000 (1502490  
> pages to be allocated)
> (XEN) VIRTUAL MEMORY ARRANGEMENT:
> (XEN)  Loaded kernel: ffffffff81000000->ffffffff82695000
> (XEN)  Init. ramdisk: ffffffff82695000->ffffffff83006a00
> (XEN)  Phys-Mach map: ffffffff83007000->ffffffff83b9d8d0
> (XEN)  Start info:    ffffffff83b9e000->ffffffff83b9e4b4
> (XEN)  Page tables:   ffffffff83b9f000->ffffffff83bc2000
> (XEN)  Boot stack:    ffffffff83bc2000->ffffffff83bc3000
> (XEN)  TOTAL:         ffffffff80000000->ffffffff84000000
> (XEN)  ENTRY ADDRESS: ffffffff819fd820
> (XEN) Dom0 has maximum 8 VCPUs
> (XEN) Scrubbing Free RAM: .done.
> (XEN) Xen trace buffers: disabled
> (XEN) Std. Loglevel: Errors and warnings
> (XEN) Guest Loglevel: Nothing (Rate-limited: Errors and warnings)
> (XEN) *** Serial input -> DOM0 (type 'CTRL-a' three times to switch  
> input to Xen)
> (XEN) Freed 128kB init memory.
> (XEN) mm.c:1697:d0 Bad L1 flags 800000
> (XEN) traps.c:437:d0 Unhandled invalid opcode fault/trap [#6] on VCPU  
> 0 [ec=0000]
> (XEN) domain_crash_sync called from entry.S
> (XEN) Domain 0 (vcpu#0) crashed on cpu#0:
> (XEN) ----[ Xen-3.4.1  x86_64  debug=n  Not tainted ]----

So Xen hypervisor is fine, but it's the dom0 kernel that crashes.

Please add 'console=hvc0 earlyprintk=xen' options for your Linux _kernel_ (not for Xen),
assuming it's pv_ops dom0 kernel..

That should give you more output to figure out the reason for the crash.

> (XEN) Domain 0 crashed: rebooting machine in 5 seconds.
> 
> I've done some searches on the mailing list and on the web, but  
> nothing seems to be helping me.  Any assistance would be greatly  
> appreciated.
> 

What's your dom0 kernel version? Custom built? 

-- Pasi


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