[Xen-devel] Kernel panic on xen-unstable from 24.1.2005

[tdc <tdc@xxxxxxxxxxxx>]

I've tried unstable tarball in the hope it will solve my problems with 
non-working save / migrate on my machine, but using unstable branch, 
domU ends in kernel panic just from start.
Because errors occure in every Xen version i've tested so far, i suspect 
there is some hardware problem (maybe, but not probable, i had problems 
with save/migrate on all machines), or some incompatibility with certain 
gcc/glibc/whatever combination or maybe some obvious error in my 
dom0/domU kernel configuration (the same config worked - without 
save/migrate - on 2.0.3). Diff shows only slight changes between my 
config and the default one - cpu type, some device drivers and 
networking options.
Machine is built from common hardware - amd cpu, via kt600 chipset. 
There are 5 PCI add-on cards and only one empty PCI slot. Maybe there is 
IRQ routing problem?
If required, i can post additional data (output from ksymoops, both 
kernel, System.map files etc.)
Dave


---
last lines of 'xm dmesg':

(XEN) *** Serial input -> DOM0 (type 'CTRL-a' three times to switch 
input to Xen).
(XEN) PCI: Found IRQ 3 for device 00:0f.1
(XEN) IRQ routing conflict for 00:0f.1, have irq 14, want irq 3
(XEN) IRQ routing conflict for 00:12.0, have irq 4, want irq 3
(XEN) spurious 8259A interrupt: IRQ7.
(XEN) PCI: Found IRQ 11 for device 00:0e.0
(XEN) PCI: Found IRQ 12 for device 00:13.0
(XEN) PCI: Found IRQ 10 for device 00:0a.0
(XEN) PCI: Sharing IRQ 10 with 00:0d.0
(XEN) PCI: Sharing IRQ 10 with 01:00.0
(XEN) PCI: Found IRQ 3 for device 00:12.0
(XEN) IRQ routing conflict for 00:0f.1, have irq 14, want irq 3
(XEN) IRQ routing conflict for 00:12.0, have irq 4, want irq 3
(XEN) PCI: Found IRQ 9 for device 00:0c.0
(XEN) PCI: Found IRQ 10 for device 00:0d.0
(XEN) PCI: Sharing IRQ 10 with 00:0a.0
(XEN) PCI: Sharing IRQ 10 with 01:00.0

---
$ cat /proc/interrupts
           CPU0
  4:      49605        Phys-irq  eth0
  8:          2        Phys-irq  rtc
 10:       1047        Phys-irq  ide2
 11:        144        Phys-irq  libata
 12:        144        Phys-irq  libata
 14:      21944        Phys-irq  ide0
256:         20     Dynamic-irq  ctrl-if
257:     216739     Dynamic-irq  timer
258:          0     Dynamic-irq  console
259:          0     Dynamic-irq  net-be-dbg
NMI:          0
ERR:          0

---
startup output of domU with 48MB RAM:

Linux version 2.6.10-xenU (root@host) (gcc version 3.4.2 (Gentoo Linux 
3.4.2-r2, ssp-3.4.1-1, pie-8.7
.6.5)) #1 Tue Jan 25 21:00:47 CET 2005
BIOS-provided physical RAM map:
 Xen: 0000000000000000 - 0000000003000000 (usable)
48MB LOWMEM available.
DMI not present.
Built 1 zonelists
Kernel command line: 
ip=192.168.0.31:1.2.3.4:192.168.0.1.1:255.255.254.0:gentoo:eth0:off 
root=/dev/sda1 ro
Initializing CPU#0
PID hash table entries: 256 (order: 8, 4096 bytes)
Xen reported: 2000.103 MHz processor.
Using tsc for high-res timesource
Dentry cache hash table entries: 8192 (order: 3, 32768 bytes)
Inode-cache hash table entries: 4096 (order: 2, 16384 bytes)
Memory: 45764k/49152k available (1985k kernel code, 3324k reserved, 484k 
data, 132k init, 0k highmem)
Checking if this processor honours the WP bit even in supervisor mode... Ok.
Mount-cache hash table entries: 512 (order: 0, 4096 bytes)
general protection fault: 0000 [#1]
PREEMPT
Modules linked in:
CPU:    0
EIP:    0061:[<c03753b0>]    Not tainted VLI
EFLAGS: 00010202   (2.6.10-xenU)
EIP is at init_amd+0x280/0x480
eax: 0383fbff   ebx: 00000006   ecx: c001001b   edx: 00000001
esi: c001001b   edi: c032a624   ebp: 00000000   esp: c036bf74
ds: 007b   es: 007b   ss: 0069
Process swapper (pid: 0, threadinfo=c036a000 task=c0327300)
Stack: c032a600 00000000 0000004a 00000000 c011aef8 00000030 00000400 
c02f9d18
       c036bfb8 c032a600 c03c3200 c032a600 c03c3200 c032a624 00000000 
c0374bee
       c032a600 0383fbff c1c3fbff 00000000 00000000 c036a000 c03c3200 
c0390aa0
Call Trace:
 [<c011aef8>] vprintk+0x168/0x220
 [<c0374bee>] identify_cpu+0x17e/0x1f0
 [<c036c18f>] check_bugs+0xf/0x60
 [<c036c7ef>] start_kernel+0x19f/0x200
 [<c036c330>] unknown_bootoption+0x0/0x1f0
Code: fa 3c 04 77 0e 8b 41 0c a9 00 00 00 02 0f 84 65 01 00 00 89 f1 80 
f9 08 0f 84 40 01 00 00 0f 86 48 01 00 00 be 1b 00 01 c0 89 f1 <0f> 32 
89 c7 25 00 00 f0 ff 89 54 24 18 3d 00 00 00 20 74 2c 89
 <0>Kernel panic - not syncing: Attempted to kill the idle task!
 <0>Rebooting in 1 seconds..





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