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[Xen-users] Kernel Bug

From: Pedro Rafael Alves Simoes <pedro.a.simoes@xxxxxxxxx>

Date: Thu, 26 Mar 2009 16:53:33 +0000

Delivery-date: Thu, 26 Mar 2009 09:54:15 -0700

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List-id: Xen user discussion <xen-users.lists.xensource.com>

Hello, I have a Debian Etch host machine with Xen Hypervisor 3.0.3 PAE and Xen kernel 2.6.18. The machine is a Dell with Intel Xeon dual core and 4gb of RAM. This is my xm list: Name ID Mem(MiB) VCPUs State Time(s) Domain-0 0 256 2 r----- 36.0 fe-backup 2 768 2 -b---- 45.8 After doing xm create -c /etc/xen/guest2 with confile: kernel = "/boot/vmlinuz-2.6.18-5-xen-686" ramdisk = "/boot/initrd.img-2.6.18-5-xen-686" memory = 768 name = "esper" vcpus = 2 #bootloader = '/usr/lib/xen-3.0.3-1/bin/pygrub' disk = ['phy:/dev/virtua/be-backup-disk,hda1,w','phy:/dev/virtua/be-backup-swap,hda2,w'] root = "/dev/hda1 ro" #extra = "4" # Network vif = ['mac=00:16:3E:36:78:F0,bridge=xenbr0'] #dhcp = "on" the host machine dies. After the reboot, I've checked the /var/log/syslog and saw this output: Mar 26 15:42:43 xenserver-backup kernel: ------------[ cut here ]------------ Mar 26 15:42:43 xenserver-backup kernel: kernel BUG at drivers/xen/core/evtchn.c:481! Mar 26 15:42:43 xenserver-backup kernel: invalid opcode: 0000 [#1] Mar 26 15:42:43 xenserver-backup kernel: SMP Mar 26 15:42:43 xenserver-backup kernel: Modules linked in: tun xt_physdev iptable_filter ip_tables x_tables bridge netloop button ac battery ipv6 dm_snapshot dm_mirror dm_mod sg loop evdev serio_raw shpchp pci_hotplug psmouse pcspkr serial_core i2c_i801 i2c_core rtc ext3 jbd mbcache sd_mod ide_cd cdrom generic mpt sas mptscsih mptbase scsi_transport_sas scsi_mod uhci_hcd tg3 piix ide_core ehci_hcd usbcore thermal processor fan Mar 26 15:42:43 xenserver-backup kernel: CPU: 1 Mar 26 15:42:43 xenserver-backup kernel: EIP: 0061:[<c020c3be>] Not tainted VLI Mar 26 15:42:43 xenserver-backup kernel: EFLAGS: 00010046 (2.6.18-5-xen-686 #1) Mar 26 15:42:43 xenserver-backup kernel: EIP is at retrigger+0x1f/0x35 Mar 26 15:42:43 xenserver-backup kernel: eax: 00000000 ebx: 02080000 ecx: 00000019 edx: f55f6000 Mar 26 15:42:43 xenserver-backup kernel: esi: c0318460 edi: 0000010a ebp: 00000000 esp: c039deb0 Mar 26 15:42:43 xenserver-backup kernel: ds: 007b es: 007b ss: 0069 Mar 26 15:42:43 xenserver-backup kernel: Process xenwatch (pid: 11, ti=c039c000 task=c0d9d000 task.ti=c039c000) Mar 26 15:42:43 xenserver-backup kernel: Stack: c013b225 c0318460 0000010a c0318488 c013af79 cb3caec0 00000000 00000000 Mar 26 15:42:43 xenserver-backup kernel: cb3caec0 c0217364 00000000 c0217744 c02108d3 00000010 00000000 0000020b Mar 26 15:42:43 xenserver-backup kernel: 0000020a 00000000 00000000 cd32f376 c02e67a4 d12ea000 00000000 00000002 Mar 26 15:42:43 xenserver-backup kernel: Call Trace: Mar 26 15:42:43 xenserver-backup kernel: [<c013b225>] check_irq_resend+0x41/0x48 Mar 26 15:42:43 xenserver-backup kernel: [<c013af79>] enable_irq+0x72/0x89 Mar 26 15:42:43 xenserver-backup kernel: [<c0217364>] __netif_up+0xb/0x13 Mar 26 15:42:43 xenserver-backup kernel: [<c0217744>] netif_map+0x247/0x26f Mar 26 15:42:43 xenserver-backup kernel: [<c02108d3>] xs_talkv+0xe3/0x128 Mar 26 15:42:43 xenserver-backup kernel: [<c0210c1c>] xenbus_read+0x34/0x3b Mar 26 15:42:43 xenserver-backup kernel: [<c0210fde>] xenbus_scanf+0x18/0x4d Mar 26 15:42:43 xenserver-backup kernel: [<c0216dd5>] frontend_changed+0x29f/0x4a8 Mar 26 15:42:43 xenserver-backup kernel: [<c0211fbc>] otherend_changed+0x74/0x79 Mar 26 15:42:43 xenserver-backup kernel: [<c0210756>] xenwatch_handle_callback+0x12/0x44 Mar 26 15:42:43 xenserver-backup kernel: [<c021119b>] xenwatch_thread+0x105/0x11b Mar 26 15:42:43 xenserver-backup kernel: [<c012b6f9>] autoremove_wake_function+0x0/0x2d Mar 26 15:42:43 xenserver-backup kernel: [<c0211096>] xenwatch_thread+0x0/0x11b Mar 26 15:42:43 xenserver-backup kernel: [<c012b62d>] kthread+0xc0/0xeb Mar 26 15:42:43 xenserver-backup kernel: [<c012b56d>] kthread+0x0/0xeb Mar 26 15:42:43 xenserver-backup kernel: [<c010293d>] kernel_thread_helper+0x5/0xb Mar 26 15:42:43 xenserver-backup kernel: Code: ee 85 f6 75 96 58 5a 5b 5e 5f 5d c3 0f b7 0c 85 40 b8 37 c0 8b 15 84 19 2d c0 85 c9 74 1d 0f a3 8a 80 08 00 00 19 c0 85 c0 75 08 <0f> 0b e1 01 92 1a 2b c0 f0 0f ab 8a 00 08 00 00 b8 01 00 00 00 Mar 26 15:42:43 xenserver-backup kernel: EIP: [<c020c3be>] retrigger+0x1f/0x35 SS:ESP 0069:c039deb0 Any idea what was the problem? _______________________________________________ Xen-users mailing list Xen-users@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-users

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