Bug#422819: And another trace
A guest (2 vcpus) was to be rebooted, then the host hung itself up:
Jul 27 12:46:45 kernel: ----------- [cut here ] --------- [please bite here ] ---------
Jul 27 12:46:45 kernel: Kernel BUG at drivers/xen/core/evtchn.c:481
Jul 27 12:46:45 kernel: invalid opcode: 0000 [1] SMP
Jul 27 12:46:45 kernel: CPU 0
Jul 27 12:46:45 kernel: Modules linked in: xt_physdev iptable_filter ip_tables x_tables button ac battery ipv6 bridge loop parport_pc parport serio_raw psmouse i2c_nforce2 i2c_core shpchp evdev pci_hotplug serial_core pcspkr floppy ext3 jbd mbcache dm_mirror dm_snapshot dm_mod ide_cd cdrom amd74xx generic ide_core sd_mod usbhid tg3 aacraid sata_nv libata ehci_hcd scsi_mod ohci_hcd fan
Jul 27 12:46:45 kernel: Pid: 25925, comm: ip Not tainted 2.6.18-4-xen-amd64 #1
Jul 27 12:46:45 kernel: RIP: e030:[<ffffffff80361752>] [<ffffffff80361752>] retrigger+0x26/0x3e
Jul 27 12:46:45 kernel: RSP: e02b:ffff8800f7999d90 EFLAGS: 00010046
Jul 27 12:46:45 kernel: RAX: 0000000000000000 RBX: 0000000000008a00 RCX: ffffffffff578000
Jul 27 12:46:45 kernel: RDX: 000000000000002a RSI: 0000000000000114 RDI: 0000000000000114
Jul 27 12:46:45 kernel: RBP: ffffffff804cde80 R08: 0100000000000000 R09: 0000000000000003
Jul 27 12:46:45 kernel: R10: 0000000000000000 R11: ffffffff8036172c R12: 0000000000000114
Jul 27 12:46:45 kernel: R13: ffffffff804cdebc R14: 0000000000000000 R15: 0000000000000000
Jul 27 12:46:45 kernel: FS: 00002b87f6a6fc80(0000) GS:ffffffff804c4000(0000) knlGS:0000000000000000
Jul 27 12:46:45 kernel: CS: e033 DS: 0000 ES: 0000
Jul 27 12:46:45 kernel: Process ip (pid: 25925, threadinfo ffff8800f7998000, task ffff8800f7a1c770)
Jul 27 12:46:45 kernel: Stack: ffffffff802a101a ffff8800f8b96500 0000000000000083 0000000000000182
Jul 27 12:46:45 kernel: 0000000000000000 ffff8800f8b96000 ffffffff8036e2bd ffff8800f8b96000
Jul 27 12:46:45 kernel: ffffffff8036e77e 0000000000008913
Jul 27 12:46:45 kernel: Call Trace:
Jul 27 12:46:45 kernel: [<ffffffff802a101a>] enable_irq+0x9d/0xbc
Jul 27 12:46:45 kernel: [<ffffffff8036e2bd>] __netif_up+0xc/0x15
Jul 27 12:46:45 kernel: [<ffffffff8036e77e>] net_open+0x17/0x1b
Jul 27 12:46:45 kernel: [<ffffffff80399fac>] dev_open+0x2f/0x6e
Jul 27 12:46:45 kernel: [<ffffffff80398513>] dev_change_flags+0x5a/0x11a
Jul 27 12:46:45 kernel: [<ffffffff803ca6ce>] devinet_ioctl+0x236/0x5a0
Jul 27 12:46:45 kernel: [<ffffffff8022253c>] __up_read+0x13/0x8a
Jul 27 12:46:45 kernel: [<ffffffff803913d4>] sock_ioctl+0x1c1/0x1e5
Jul 27 12:46:45 kernel: [<ffffffff80241bfe>] do_ioctl+0x21/0x6b
Jul 27 12:46:45 kernel: [<ffffffff80230fac>] vfs_ioctl+0x252/0x26b
Jul 27 12:46:45 kernel: [<ffffffff802225d8>] fd_install+0x25/0x5f
Jul 27 12:46:45 kernel: [<ffffffff8024bf0e>] sys_ioctl+0x59/0x78
Jul 27 12:46:45 kernel: [<ffffffff8025c72e>] system_call+0x86/0x8b
Jul 27 12:46:45 kernel: [<ffffffff8025c6a8>] system_call+0x0/0x8b
Jul 27 12:46:45 kernel:
Jul 27 12:46:45 kernel:
Jul 27 12:46:45 kernel: Code: 0f 0b 68 94 eb 41 80 c2 e1 01 f0 0f ab 91 00 08 00 00 b8 01
Jul 27 12:46:45 kernel: RIP [<ffffffff80361752>] retrigger+0x26/0x3e
Jul 27 12:46:45 kernel: RSP <ffff8800f7999d90>
Jul 27 12:46:45 logger: /etc/xen/scripts/block: Writing backend/vbd/17/2052/physical-device fe:4 to xenstore.
Jul 27 12:46:45 logger: /etc/xen/scripts/block: Writing backend/vbd/17/2052/hotplug-status connected to xenstore.
Jul 27 12:46:46 logger: /etc/xen/scripts/block: Writing backend/vbd/17/2049/physical-device fe:3 to xenstore.
Jul 27 12:46:46 logger: /etc/xen/scripts/block: Writing backend/vbd/17/2049/hotplug-status connected to xenstore.
Jul 27 12:46:47 logger: /etc/xen/scripts/block: Writing backend/vbd/17/2050/physical-device fe:b to xenstore.
Jul 27 12:46:47 logger: /etc/xen/scripts/block: Writing backend/vbd/17/2050/hotplug-status connected to xenstore.
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