Re: Panic on Seattle (resend)

[Suravee Suthikulpanit <Suravee.Suthikulpanit@amd.com>]

On 09/30/2014 09:57 AM, Suravee Suthikulpanit wrote:
>
>
> On 09/30/2014 05:45 AM, Ian Campbell wrote:
>> On Tue, 2014-09-30 at 02:43 -0500, Suravee Suthikulpanit wrote:
>>> Hi All,
>>>
>>> I have been trying to boot the latest Xen code on Seattle (while I am
>>> getting the patch ready to be sent out), and I ran into the following
>>> issue.
>>>
>>> .....
>>> (XEN) Brought up 6 CPUs
>>> (XEN) CPU 5 booted.
>>> (XEN) P2M: 44-bit IPA with 44-bit PA
>>> (XEN) P2M: 4 levels with order-0 root, VTCR 0x80043594
>>> (XEN) *** LOADING DOMAIN 0 ***
>>> (XEN) Loading kernel from boot module @ 0000008008800000
>>> (XEN) elf_init: not an ELF binary
>>> (XEN)
>>> (XEN) ****************************************
>>> (XEN) Panic on CPU 0:
>>> (XEN) Could not set up DOM0 guest OS
>>> (XEN) ****************************************
>>> (XEN)
>>> (XEN) Manual reset required ('noreboot' specified)
>>>
>>> I have not tracked down to a particular commit ID. But do you guys see
>>> anything suspicious with the error message?
>>
>> The elf_init thing is suspicious, it suggests Xen hasn't properly
>> figured out the type of your kernel image. Is it a regular bare arm64
>> Image (from arch/arm64/boot/Image)? You can't boot the vmlinux from the
>> top level directly (AFAIK).
>
> Actually, I bisect it down to this commit ID causing it to break:
>
> commit 73b9bdfd2adab8ed0cea91d3e4470b0d1bf76591
> Author: Vijaya Kumar K <Vijaya.Kumar@caviumnetworks.com>
> Date:   Fri Sep 12 16:39:46 2014 +0530
>
>      xen/arm: Add virtual GICv3 support

CORRECTION: Wrong commit ID here.

It's the commit bc183a0235e092bb0dd3cea97fc4ea55c490101e

     xen/arm: Add support for GIC v3

Sorry for confusion.

Suravee


> I am not sure at this point why. Here is the full Xen log.
>
> Loading Xen image..
> - UART enabled -
> - CPU 00000000 booting -
> - Current EL 00000008 -
> - Xen starting at EL2 -
> - Zero BSS -
> - Setting up control registers -
> - Turning on paging -
> - Ready -
> (XEN) Checking for initrd in /chosen
> (XEN) RAM: 0000008000000000 - 00000083ffffffff
> (XEN)
> (XEN) MODULE[0]: 000000801fffe000 - 000000801ffffc7d Device Tree
> (XEN) MODULE[1]: 0000008008800000 - 0000008009100890 Kernel
> (XEN)
> (XEN) Command line: console=dtuart dtuart=serial0 noreboot sync_console
> (XEN) Placing Xen at 0x00000083ffe00000-0x0000008400000000
> (XEN) Update BOOTMOD_XEN from 0000008008700000-0000008008802d81 =>
> 00000083ffe00000-00000083fff02d81
> (XEN) Domain heap initialised
> (XEN) Looking for UART console serial0
>   Xen 4.5-unstable
> (XEN) Xen version 4.5-unstable (ssuthiku@) (aarch64-linux-gnu-gcc
> (crosstool-NG linaro-1.13.1-4.8-2014.01 - Linaro GCC 2013.11) 4.8.3
> 20140106 (prerelease)) debug=y Tue Sep 30 09:41:14 CDT 2014
> (XEN) Latest ChangeSet: Mon Aug 25 22:31:06 2014 -0500 git:ecf3789-dirty
> (XEN) Console output is synchronous.
> (XEN) Processor: 410fd070: "ARM Limited", variant: 0x0, part 0xd07, rev 0x0
> (XEN) 64-bit Execution:
> (XEN)   Processor Features: 0000000000002222 0000000000000000
> (XEN)     Exception Levels: EL3:64+32 EL2:64+32 EL1:64+32 EL0:64+32
> (XEN)     Extensions: FloatingPoint AdvancedSIMD
> (XEN)   Debug Features: 0000000010305106 0000000000000000
> (XEN)   Auxiliary Features: 0000000000000000 0000000000000000
> (XEN)   Memory Model Features: 0000000000001124 0000000000000000
> (XEN)   ISA Features:  0000000000011120 0000000000000000
> (XEN) 32-bit Execution:
> (XEN)   Processor Features: 00000131:00011011
> (XEN)     Instruction Sets: AArch32 Thumb Thumb-2 Jazelle
> (XEN)     Extensions: GenericTimer Security
> (XEN)   Debug Features: 03010066
> (XEN)   Auxiliary Features: 00000000
> (XEN)   Memory Model Features: 10101105 40000000 01260000 02102211
> (XEN)  ISA Features: 02101110 13112111 21232042 01112131 00011142 00011121
> (XEN) Platform: SEATTLE
> (XEN) Generic Timer IRQ: phys=30 hyp=26 virt=27
> (XEN) Using generic timer at 187500 KHz
> (XEN) GICv2 initialization:
> (XEN)         gic_dist_addr=00000000e1110000
> (XEN)         gic_cpu_addr=00000000e112f000
> (XEN)         gic_hyp_addr=00000000e1140000
> (XEN)         gic_vcpu_addr=00000000e1160000
> (XEN)         gic_maintenance_irq=24
> (XEN) GICv2: 448 lines, 8 cpus, secure (IID 0200143b).
> (XEN) Using scheduler: SMP Credit Scheduler (credit)
> (XEN) I/O virtualisation disabled
> (XEN) Allocated console ring of 64 KiB.
> (XEN) Bringing up CPU1
> - CPU 00000201 booting -
> - Current EL 00000008 -
> - Xen starting at EL2 -
> - Setting up control registers -
> - Turning on paging -
> - Ready -
> (XEN) CPU 1 booted.
> (XEN) Bringing up CPU2
> - CPU 00000200 booting -
> - Current EL 00000008 -
> - Xen starting at EL2 -
> - Setting up control registers -
> - Turning on paging -
> - Ready -
> (XEN) CPU 2 booted.
> (XEN) Bringing up CPU3
> - CPU 00000101 booting -
> - Current EL 00000008 -
> - Xen starting at EL2 -
> - Setting up control registers -
> - Turning on paging -
> - Ready -
> (XEN) CPU 3 booted.
> (XEN) Bringing up CPU4
> - CPU 00000100 booting -
> - Current EL 00000008 -
> - Xen starting at EL2 -
> - Setting up control registers -
> - Turning on paging -
> - Ready -
> (XEN) CPU 4 booted.
> (XEN) Bringing up CPU5
> - CPU 00000001 booting -
> - Current EL 00000008 -
> - Xen starting at EL2 -
> - Setting up control registers -
> - Turning on paging -
> - Ready -
> (XEN) Brought up 6 CPUs
> (XEN) CPU 5 booted.
> (XEN) *** LOADING DOMAIN 0 ***
> (XEN) Loading kernel from boot module @ 0000008008800000
> (XEN) elf_init: not an ELF binary
> (XEN)
> (XEN) ****************************************
> (XEN) Panic on CPU 0:
> (XEN) Could not set up DOM0 guest OS
> (XEN) ****************************************
> (XEN)
> (XEN) Manual reset required ('noreboot' specified)
>
> Suravee