Xen 3.0.2 Kernel panic && reboot

[Markus Ingalsuo <markus.ingalsuo@iki.fi>]

Experienced horrible crashes with Xen 3.0.2 and 
linux-image-2.6.17-2-xen-k7. This is a debian bugreport but thought I'd 
post it here to expose it to the right audience..

Screenshot-photos of the panic can be found at 
http://www.osp.fi/xen1.jpg , http://www.osp.fi/xen2.jpg and 
http://www.osp.fi/xen3.jpg

//Markus

Package: linux-image-2.6.17-2-xen-k7
Version: 2.6.17-9
Severity: critical
Justification: breaks the whole system

Xen 3.0 unstable in debian etch crashes horribly and reboots the system when booting virtual domains with 
linux-image-2.6.17-2-xen-k7 kernel. Took a photo of the panic message and lost some values in the process.
Below is what could be salvaged:

esi: 00000000	edi: 05555000	ebp: 00000104	esp: b0379e0c
ds: 007b	es: 007b	ss: 0069
Process xenwatch (pid: 7, threadinfo=b0378000 task=b0daba90)
Stack: <0>93e42f51 b0379eac b1c4e080 00000000 b0daba90 b0dab580 b1c4e940 b0da????
0
	b037bf58 b0278c25 b0379e94 0000000a b0a61740 00000000 0000000???
	00000104 b013444a b0379eac 00004100 b02fd380 00000104 b0a6 1740 b013450???
Call Trace:
 <b0278c25> schedule+0x5b9/0x692 <b013444a> handle_IRQ_event+0x43/0x83
 <b0134507> __do_IRQ+0x7d/0xce <b0106097> do_IRQ+0x1a/0x25
 <b0200ddd> evtchn_do_upcall+0x64/0x9b <b01049dd> hypervisor_callback+0x3d/0????
 <b020b03f> netif_map+0x165/0x25e <b020a63f> maybe_connect+0x59/0x209
 <b020a66a> maybe_connect+0x84/0x209 <b020440c> xenbus_read_driver_state+0x1??????
 <b02068c3> otherend_changed+0x4f/0x54 <b0205981> xenwatch_thread+0x???????
 <b020507d> xenwatch_handle_callback+0x12/0x44 <b0205185> xenwatch_thread+0x???????
 <b0129a6b> autoremove_wake_function+0x0/0x2d <b01299aa> kthread0+x9f/0xcb
 <b012990b> kthread+0x0/0xcb <b0102991> kernel_thread_helper+0x5/0xb
Code: 50 34 75 1e 8b 0d 50 fb 32 b0 89 d0 d3 e8 85 c0 74 08 8b 15 0c d4 34 b0 ??
08 a1 4c fb 32 b0 8b 14 90 c1 e2 0c 8d ba 00 00 00 b0 <8b> 87 04 0c 00 00 8b ??
00 0c 00 00 89 44 24 08 f0 83 04 24 00
EIP: [<b02035c0>] handle_input+0x43/0xf7 SS:ESP 0069:b0379e0c
  <0>Kernel panic - not syncing: Fatal exception in interrupt

This is with ACPI on, same result with ACPI off.

lspci:

00:00.0 Host bridge: VIA Technologies, Inc. VT8378 [KM400/A] Chipset Host Bridge
00:01.0 PCI bridge: VIA Technologies, Inc. VT8237 PCI Bridge
00:10.0 USB Controller: VIA Technologies, Inc. VT82xxxxx UHCI USB 1.1 Controller (rev 80)
00:10.1 USB Controller: VIA Technologies, Inc. VT82xxxxx UHCI USB 1.1 Controller (rev 80)
00:10.2 USB Controller: VIA Technologies, Inc. VT82xxxxx UHCI USB 1.1 Controller (rev 80)
00:10.3 USB Controller: VIA Technologies, Inc. USB 2.0 (rev 82)
00:11.0 ISA bridge: VIA Technologies, Inc. VT8235 ISA Bridge
00:11.1 IDE interface: VIA Technologies, Inc. VT82C586A/B/VT82C686/A/B/VT823x/A/C PIPC Bus Master IDE (rev 06)
00:11.5 Multimedia audio controller: VIA Technologies, Inc. VT8233/A/8235/8237 AC97 Audio Controller (rev 50)
00:12.0 Ethernet controller: VIA Technologies, Inc. VT6102 [Rhine-II] (rev 74)
01:00.0 VGA compatible controller: VIA Technologies, Inc. VT8378 [S3 UniChrome] Integrated Video (rev 01)


cpuinfo:

processor       : 0
vendor_id       : AuthenticAMD
cpu family      : 6
model           : 10
model name      : AMD Athlon(tm) XP 2600+
stepping        : 0
cpu MHz         : 1908.997
cache size      : 512 KB
fdiv_bug        : no
hlt_bug         : no
f00f_bug        : no
coma_bug        : no
fpu             : yes
fpu_exception   : yes
cpuid level     : 1
wp              : yes
flags           : fpu tsc msr pae mce cx8 apic mtrr mca cmov pat pse36 mmx fxsr sse syscall mmxext 3dnowext 3dnow up ts
bogomips        : 4773.79


Memtest86 has been run with success. No errors found.

Domains:

Name                              ID Mem(MiB) VCPUs State  Time(s)
Domain-0                           0      967     1 r-----    39.9
debian1                            1      256     1 -b----    71.9
johnny_osp                         2      256     1 -b----    25.4

Two virtual domains can be booted but a third causes kernel panic and reboot.

free -m:

             total       used       free     shared    buffers     cached
Mem:           967        300        666          0         14        210
-/+ buffers/cache:         76        890
Swap:         1898          0       1898




-- System Information:
Debian Release: testing/unstable
  APT prefers testing
  APT policy: (500, 'testing')
Architecture: i386 (i686)
Shell:  /bin/sh linked to /bin/bash
Kernel: Linux 2.6.17-2-xen-k7
Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8)

Versions of packages linux-image-2.6.17-2-xen-k7 depends on:
ii  initramfs-tools               0.82       tools for generating an initramfs
ii  linux-modules-2.6.17-2-xen-k7 2.6.17-9   Linux 2.6.17 modules on AMD K7

Versions of packages linux-image-2.6.17-2-xen-k7 recommends:
ii  libc6-xen                    2.3.6.ds1-4 GNU C Library: Shared libraries [X

-- no debconf information