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[Xen-devel] Re: Xen-4.0.x doesn't start on 32bit / pvops 2.6.32.19

from [Pasi Kärkkäinen] [Permanent Link][Original]
To: xen-devel@xxxxxxxxxxxxxxxxxxx
Subject: [Xen-devel] Re: Xen-4.0.x doesn't start on 32bit / pvops 2.6.32.19
From: Pasi Kärkkäinen <pasik@xxxxxx>
Date: Mon, 16 Aug 2010 13:44:13 +0300
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On Mon, Aug 16, 2010 at 12:15:41PM +0200, Stefan Kuhne wrote:
> Hello,
> 
> i start an new Thread because of the old one is a little bit messy.
> 
> I try to get xen-4.0.x running on a Dell R310 with Core i3 CPU ind 32Bit.
> 
> I tried Ubuntu-10.04 Server in 32bit and 64bit.
> I use on both Systems the same scripts with code from Wiki:
> apt-get install ...
> hg clone (from ML)
> make install
> 
> On 64bit system boots until mount of rootfs.
>

So does 64bit kernel boot/work OK?

> But 32bit boots until:
> (XEN) d0:v0: unhandled page fault (ec=0009)
> (XEN) Pagetable walk from c009fc00:
> (XEN)  L3[0x003] = 0000000039820001 00001820
> (XEN)  L2[0x000] = 0000000039fdd067 00001fdd
> (XEN)  L1[0x09f] = 000007fffffff063 ffffffff
> (XEN) d0:v0: reserved bit in page table (ec=0009)
> 
> Is anybody running an 32bit System?
> I need 32bit because of my destination Distro is only in 32bit available.
> 

Based on the full bootlog the problem is in the dom0 kernel, not in Xen 
hypervisor.
Did you try earlier versions of the dom0 kernel? Which version introduces this 
problem?

I think 2.6.32.10 booted/worked for me on 32bit..

<snip>

> (XEN) *** LOADING DOMAIN 0 ***
> (XEN)  Xen  kernel: 32-bit, PAE, lsb
> (XEN)  Dom0 kernel: 32-bit, PAE, lsb, paddr 0x1000000 -> 0x19f5000
> (XEN) PHYSICAL MEMORY ARRANGEMENT:
> (XEN)  Dom0 alloc.:   0000000038000000->000000003c000000 (245760 pages
> to be allocated)
> (XEN) VIRTUAL MEMORY ARRANGEMENT:
> (XEN)  Loaded kernel: c1000000->c19f5000
> (XEN)  Init. ramdisk: c19f5000->c1ed6800
> (XEN)  Phys-Mach map: c1ed7000->c1fd7000
> (XEN)  Start info:    c1fd7000->c1fd747c
> (XEN)  Page tables:   c1fd8000->c1fef000
> (XEN)  Boot stack:    c1fef000->c1ff0000
> (XEN)  TOTAL:         c0000000->c2400000
> (XEN)  ENTRY ADDRESS: c1798000
> (XEN) Dom0 has maximum 4 VCPUs
> (XEN) Scrubbing Free RAM: .............................done.
> (XEN) trace.c:89:d32767 calc_tinfo_first_offset: NR_CPUs 128,
> offset_in_bytes 258, t_info_first_offset 65
> (XEN) Xen trace buffers: disabled
> (XEN) Std. Loglevel: All
> (XEN) Guest Loglevel: All
> (XEN) **********************************************
> (XEN) ******* WARNING: CONSOLE OUTPUT IS SYNCHRONOUS
> (XEN) ******* This option is intended to aid debugging of Xen by ensuring
> (XEN) ******* that all output is synchronously delivered on the serial line.
> (XEN) ******* However it can introduce SIGNIFICANT latencies and affect
> (XEN) ******* timekeeping. It is NOT recommended for production use!
> (XEN) **********************************************
> (XEN) 3... 2... 1...
> (XEN) *** Serial input -> DOM0 (type 'CTRL-a' three times to switch
> input to Xen)
> (XEN) Freed 152kB init memory.


So Xen starts fine, and it boots the dom0 kernel here.


> mapping kernel into physical memory
> Xen: setup ISA identity maps
> about to get started...
> [    0.000000] Reserving virtual address space above 0xf5800000
> [    0.000000] Initializing cgroup subsys cpuset
> [    0.000000] Initializing cgroup subsys cpu
> [    0.000000] Linux version 2.6.32.19 (root@FB5-Cluster) (gcc version
> 4.4.3 (Ubuntu 4.4.3-4ubuntu5) ) #1 SMP Mon Aug 16 11:19:14 CEST 2010

<snip>

> [    0.000000] NX (Execute Disable) protection: active


Did you try without NX? (ie. turn it off in the BIOS). 


> [    0.000000] 302MB HIGHMEM available.
> [    0.000000] 721MB LOWMEM available.

Does dom0_mem=512M help? 



> (XEN) d0:v0: unhandled page fault (ec=0009)
> (XEN) Pagetable walk from c009fc00:
> (XEN)  L3[0x003] = 0000000039820001 00001820
> (XEN)  L2[0x000] = 0000000039fdd067 00001fdd
> (XEN)  L1[0x09f] = 000007fffffff063 ffffffff
> (XEN) d0:v0: reserved bit in page table (ec=0009)
> (XEN) Pagetable walk from c009fc00:
> (XEN)  L3[0x003] = 0000000039820001 00001820
> (XEN)  L2[0x000] = 0000000039fdd067 00001fdd
> (XEN)  L1[0x09f] = 000007fffffff063 ffffffff
> (XEN) ----[ Xen-4.0.1-rc6  x86_32p  debug=n  Tainted:    C ]----
> (XEN) CPU:    0
> (XEN) EIP:    e019:[<c17a56a1>]


You'd have to use gdb on the kernel vmlinux file to resolve which
funtion this address points to.. to see why/where it crashes.

-- Pasi

> (XEN) EFLAGS: 00010206   EM: 1   CONTEXT: pv guest
> (XEN) eax: 0009fc00   ebx: c009fc00   ecx: 00000001   edx: 00000400
> (XEN) esi: 00000400   edi: 00000000   ebp: c170df24   esp: c170df14
> (XEN) cr0: 8005003b   cr4: 000026f0   cr3: 3970f000   cr2: c009fc00
> (XEN) ds: e021   es: e021   fs: 00d8   gs: 0000   ss: e021   cs: e019
> (XEN) Guest stack trace from esp=c170df14:
> (XEN)    00000001 00000001 2d1fe000 00000000 c170df30 c17a5790 00000000
> c170dfac
> (XEN)    c179e3c6 c170df9c c106024f 01ed6800 00000000 00000035 019f5000
> 00000000
> (XEN)    c170df6d 00000000 205b5000 004e1800 3030302e 019f5000 c17a0020
> c1720fcc
> (XEN)    00000002 00000002 00000000 00000000 c1720350 c170df94 c102b2c5
> 00000000
> (XEN)    00000000 c1720350 c170dfac 00000000 00000000 c1720350 c170dfc4
> c17985c6
> (XEN)    c162db96 c14bd010 c17d1240 019f5000 c170dfd4 c17980a8 019f5000
> c17cfee0
> (XEN)    c170dffc c179bd31 1fc9d3f5 80980281 00100800 00020652 00000001
> 00000000
> (XEN)    c1fd7000 00000000 00000000 00000000 00000000 00000000 00000000
> 00000000
> (XEN)    00000000 00000000 00000000 00000000 00000000 00000000 00000000
> 00000000
> (XEN)    00000000 00000000 00000000 00000000 00000000 00000000 00000000
> 00000000
> (XEN)    00000000 00000000 00000000 00000000 00000000 00000000 00000000
> 00000000
> (XEN)    00000000 00000000 00000000 00000000 00000000 00000000 00000000
> 00000000
> (XEN)    00000000 00000000 00000000 00000000 00000000 00000000 00000000
> 00000000
> (XEN)    00000000 00000000 00000000 00000000 00000000 00000000 00000000
> 00000000
> (XEN)    00000000 00000000 00000000 00000000 00000000 00000000 00000000
> 00000000
> (XEN)    00000000 00000000 00000000 00000000 00000000 00000000 00000000
> 00000000
> (XEN)    00000000 00000000 00000000 00000000 00000000 00000000 00000000
> 00000000
> (XEN)    00000000 00000000 00000000 00000000 00000000 00000000 00000000
> 00000000
> (XEN)    00000000 00000000 00000000 00000000 00000000 00000000 00000000
> 00000000
> (XEN)    00000000 00000000 00000000 00000000 00000000 00000000 00000000
> 00000000
> (XEN) domain_crash_sync called from entry.S (ff1ccc1e)
> (XEN) Domain 0 (vcpu#0) crashed on cpu#0:
> (XEN) ----[ Xen-4.0.1-rc6  x86_32p  debug=n  Tainted:    C ]----
> (XEN) CPU:    0
> (XEN) EIP:    e019:[<c17a56a1>]
> (XEN) EFLAGS: 00000206   EM: 1   CONTEXT: pv guest
> (XEN) eax: 0009fc00   ebx: c009fc00   ecx: 00000001   edx: 00000400
> (XEN) esi: 00000400   edi: 00000000   ebp: c170df24   esp: c170df04
> (XEN) cr0: 8005003b   cr4: 000026f0   cr3: 3970f000   cr2: c009fc00
> (XEN) ds: e021   es: e021   fs: 00d8   gs: 0000   ss: e021   cs: e019
> (XEN) Guest stack trace from esp=c170df04:
> (XEN)    00000009 c17a56a1 0001e019 00010006 00000001 00000001 2d1fe000
> 00000000
> (XEN)    c170df30 c17a5790 00000000 c170dfac c179e3c6 c170df9c c106024f
> 01ed6800
> (XEN)    00000000 00000035 019f5000 00000000 c170df6d 00000000 205b5000
> 004e1800
> (XEN)    3030302e 019f5000 c17a0020 c1720fcc 00000002 00000002 00000000
> 00000000
> (XEN)    c1720350 c170df94 c102b2c5 00000000 00000000 c1720350 c170dfac
> 00000000
> (XEN)    00000000 c1720350 c170dfc4 c17985c6 c162db96 c14bd010 c17d1240
> 019f5000
> (XEN)    c170dfd4 c17980a8 019f5000 c17cfee0 c170dffc c179bd31 1fc9d3f5
> 80980281
> (XEN)    00100800 00020652 00000001 00000000 c1fd7000 00000000 00000000
> 00000000
> (XEN)    00000000 00000000 00000000 00000000 00000000 00000000 00000000
> 00000000
> (XEN)    00000000 00000000 00000000 00000000 00000000 00000000 00000000
> 00000000
> (XEN)    00000000 00000000 00000000 00000000 00000000 00000000 00000000
> 00000000
> (XEN)    00000000 00000000 00000000 00000000 00000000 00000000 00000000
> 00000000
> (XEN)    00000000 00000000 00000000 00000000 00000000 00000000 00000000
> 00000000
> (XEN)    00000000 00000000 00000000 00000000 00000000 00000000 00000000
> 00000000
> (XEN)    00000000 00000000 00000000 00000000 00000000 00000000 00000000
> 00000000
> (XEN)    00000000 00000000 00000000 00000000 00000000 00000000 00000000
> 00000000
> (XEN)    00000000 00000000 00000000 00000000 00000000 00000000 00000000
> 00000000
> (XEN)    00000000 00000000 00000000 00000000 00000000 00000000 00000000
> 00000000
> (XEN)    00000000 00000000 00000000 00000000 00000000 00000000 00000000
> 00000000
> (XEN)    00000000 00000000 00000000 00000000 00000000 00000000 00000000
> 00000000
> (XEN) Domain 0 crashed: 'noreboot' set - not rebooting.
> 



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