Hello,
 I have experienced a dom0 crash where the system became unreachable via 
the network and the console was unresponsive.  I would appreciate help 
interpretting the logs and any configuration change suggestions.
 It is a stock Debian Lenny dom0 running xen 3.2.1 with kernel 
2.6.26-2-xen-amd64 and an AMD Athlon IIx4 with 4 GB of RAM.  It is 
running 4 VMs.  One VM has two PCI NICs being passed to it, while 
another has three PCI MPEG encoders passed to it (physically they are 
only two cards, but one, a hauppage pvr-500, has two encoders on it 
connected via a PCI bridge).  Three of the VMs were migrated from 
another machine and are running Debian kernel 2.6.26-2-xen-686 (32 bit), 
the fourth is running the same kernel as the dom0 (64 bit).
 As you'll see from the logs the system has three hard drives, a PATA 
(hdc) that holds the dom0 and VMs OS file systems, and 2 SATA (sda, sdb) 
that are configured in a software RAID 1 and hold the VMs data 
filesystems.  If I am reading things right all three drives appear to 
experience interrupt / DMA issues during the crash.  The peth0 NIC goes 
down and up during the crash.  There is also a mention of IRQ 22, which 
is used by the SATA controller.
Any pointers or suggests are greatly appreciated.
- Ben
From /var/log/syslog:
 Apr 11 04:00:01 xenserver /USR/SBIN/CRON[20831]: (root) CMD (test -x 
/usr/sbin/cron-apt && /usr/sbin/cron-apt)
Apr 11 04:00:01 xenserver /USR/SBIN/CRON[20832]: (root) CMD (if [ -x 
/usr/bin/vnstat ] && [ `ls /var/lib/vnstat/ | wc -l` -ge 1 ]; then 
/usr/bin/vnstat -u; fi)
Apr 11 04:03:02 xenserver logger: /etc/xen/scripts/xen-hotplug-cleanup: 
XENBUS_PATH=backend/console/1/0
Apr 11 04:03:02 xenserver logger: /etc/xen/scripts/block: remove 
XENBUS_PATH=backend/vbd/1/2049
Apr 11 04:03:02 xenserver kernel: [275947.205259] eth0: port 2(vif1.0) 
entering disabled state
Apr 11 04:03:02 xenserver logger: /etc/xen/scripts/block: remove 
XENBUS_PATH=backend/vbd/1/2051
Apr 11 04:03:02 xenserver logger: /etc/xen/scripts/vif-bridge: 
bridge=eth0 offline XENBUS_PATH=backend/vif/1/0
Apr 11 04:03:02 xenserver logger: /etc/xen/scripts/block: remove 
XENBUS_PATH=backend/vbd/1/2050
Apr 11 04:03:02 xenserver logger: /etc/xen/scripts/xen-hotplug-cleanup: 
XENBUS_PATH=backend/vbd/1/2049
Apr 11 04:03:02 xenserver kernel: [275947.239755] eth0: port 2(vif1.0) 
entering disabled state
Apr 11 04:03:02 xenserver logger: /etc/xen/scripts/xen-hotplug-cleanup: 
XENBUS_PATH=backend/vbd/1/2051
Apr 11 04:03:02 xenserver logger: /etc/xen/scripts/xen-hotplug-cleanup: 
XENBUS_PATH=backend/vbd/1/2050
Apr 11 04:03:02 xenserver logger: /etc/xen/scripts/vif-bridge: brctl 
delif eth0 vif1.0 failed
Apr 11 04:03:02 xenserver logger: /etc/xen/scripts/vif-bridge: ifconfig 
vif1.0 down failed
Apr 11 04:03:02 xenserver logger: /etc/xen/scripts/vif-bridge: 
Successful vif-bridge offline for vif1.0, bridge eth0.
Apr 11 04:03:02 xenserver logger: /etc/xen/scripts/xen-hotplug-cleanup: 
XENBUS_PATH=backend/vif/1/0
Apr 11 04:03:02 xenserver logger: /etc/xen/scripts/vif-bridge: 
bridge=eth0 offline XENBUS_PATH=backend/vif/1/1
Apr 11 04:03:02 xenserver kernel: [275947.564179] xenbrDMZ: port 
1(vif1.1) entering disabled state
Apr 11 04:03:03 xenserver kernel: [275947.607309] xenbrDMZ: port 
1(vif1.1) entering disabled state
Apr 11 04:03:03 xenserver logger: /etc/xen/scripts/vif-bridge: brctl 
delif xenbrDMZ vif1.1 failed
Apr 11 04:03:03 xenserver logger: /etc/xen/scripts/vif-bridge: ifconfig 
vif1.1 down failed
Apr 11 04:03:03 xenserver logger: /etc/xen/scripts/vif-bridge: 
Successful vif-bridge offline for vif1.1, bridge xenbrDMZ.
Apr 11 04:03:03 xenserver kernel: [275948.415105] ACPI: PCI interrupt 
for device 0000:02:00.0 disabled
Apr 11 04:03:03 xenserver kernel: [275948.415130] ACPI: PCI interrupt 
for device 0000:04:07.0 disabled
Apr 11 04:03:03 xenserver logger: /etc/xen/scripts/xen-hotplug-cleanup: 
XENBUS_PATH=backend/vif/1/1
Apr 11 04:03:03 xenserver logger: /etc/xen/scripts/xen-hotplug-cleanup: 
XENBUS_PATH=backend/pci/1/0
Apr 11 04:05:01 xenserver /USR/SBIN/CRON[21159]: (root) CMD (if [ -x 
/usr/bin/vnstat ] && [ `ls /var/lib/vnstat/ | wc -l` -ge 1 ]; then 
/usr/bin/vnstat -u; fi)
Apr 11 04:10:01 xenserver /USR/SBIN/CRON[21165]: (root) CMD (if [ -x 
/usr/bin/vnstat ] && [ `ls /var/lib/vnstat/ | wc -l` -ge 1 ]; then 
/usr/bin/vnstat -u; fi)
Apr 11 04:15:01 xenserver /USR/SBIN/CRON[21171]: (root) CMD (if [ -x 
/usr/bin/vnstat ] && [ `ls /var/lib/vnstat/ | wc -l` -ge 1 ]; then 
/usr/bin/vnstat -u; fi)
Apr 11 04:17:01 xenserver /USR/SBIN/CRON[21177]: (root) CMD (   cd / && 
run-parts --report /etc/cron.hourly)
Apr 11 04:20:01 xenserver /USR/SBIN/CRON[21181]: (root) CMD (if [ -x 
/usr/bin/vnstat ] && [ `ls /var/lib/vnstat/ | wc -l` -ge 1 ]; then 
/usr/bin/vnstat -u; fi)
Apr 11 04:22:29 xenserver kernel: [277113.497127] irq 22: nobody cared 
(try booting with the "irqpoll" option)
Apr 11 04:22:29 xenserver kernel: [277113.497144] Pid: 0, comm: swapper 
Not tainted 2.6.26-2-xen-amd64 #1
Apr 11 04:22:29 xenserver kernel: [277113.497152]
Apr 11 04:22:29 xenserver kernel: [277113.497153] Call Trace:
 Apr 11 04:22:29 xenserver kernel: [277113.497165]  <IRQ>  
[<ffffffff8037ce18>] irq_ignore_unhandled+0x1c/0x32
Apr 11 04:22:29 xenserver kernel: [277113.497188]  [<ffffffff8025f88f>] 
__report_bad_irq+0x30/0x72
Apr 11 04:22:29 xenserver kernel: [277113.497197]  [<ffffffff8025fb58>] 
note_interrupt+0x287/0x2c7
Apr 11 04:22:29 xenserver kernel: [277113.497207]  [<ffffffff80260440>] 
handle_level_irq+0xc3/0x118
Apr 11 04:22:29 xenserver kernel: [277113.497218]  [<ffffffff8020e146>] 
do_IRQ+0x4e/0x9a
Apr 11 04:22:29 xenserver kernel: [277113.497227]  [<ffffffff8037db2c>] 
evtchn_do_upcall+0x13c/0x1fc
Apr 11 04:22:29 xenserver kernel: [277113.497237]  [<ffffffff8020bbde>] 
do_hypervisor_callback+0x1e/0x30
Apr 11 04:22:29 xenserver kernel: [277113.497245]  <EOI>  
[<ffffffff8020e79d>] xen_safe_halt+0x90/0xa6
Apr 11 04:22:29 xenserver kernel: [277113.497263]  [<ffffffff8020a0ce>] 
xen_idle+0x2e/0x66
Apr 11 04:22:29 xenserver kernel: [277113.497271]  [<ffffffff80209d49>] 
cpu_idle+0x97/0xb9
Apr 11 04:22:29 xenserver kernel: [277113.497283]
Apr 11 04:22:29 xenserver kernel: [277113.497288] handlers:
 Apr 11 04:22:29 xenserver kernel: [277113.497295] [<ffffffffa0099969>] 
(ahci_interrupt+0x0/0x46b [ahci])
Apr 11 04:22:29 xenserver kernel: [277113.497312] Disabling IRQ #22
 Apr 11 04:22:54 xenserver kernel: [277138.645875] hdc: dma_timer_expiry: 
dma status == 0x64
Apr 11 04:23:00 xenserver kernel: [277145.647409] ata2.00: exception 
Emask 0x40 SAct 0x0 SErr 0x800 action 0x6 frozen
Apr 11 04:23:00 xenserver kernel: [277145.647429] ata2: SError: { HostInt }
Apr 11 04:23:00 xenserver kernel: [277145.647438] ata2.00: cmd 
ea/00:00:00:00:00/00:00:00:00:00/a0 tag 0
Apr 11 04:23:00 xenserver kernel: [277145.647439]          res 
40/00:00:00:00:00/00:00:00:00:00/00 Emask 0x44 (timeout)
Apr 11 04:23:00 xenserver kernel: [277145.647458] ata2.00: status: { DRDY }
Apr 11 04:23:00 xenserver kernel: [277145.647467] ata2: hard resetting link
Apr 11 04:23:00 xenserver kernel: [277145.647486] ata1.00: exception 
Emask 0x0 SAct 0x0 SErr 0x0 action 0x6 frozen
Apr 11 04:23:00 xenserver kernel: [277145.647496] ata1.00: cmd 
ea/00:00:00:00:00/00:00:00:00:00/a0 tag 0
Apr 11 04:23:00 xenserver kernel: [277145.647497]          res 
40/00:00:00:00:00/00:00:00:00:00/00 Emask 0x4 (timeout)
Apr 11 04:23:00 xenserver kernel: [277145.647515] ata1.00: status: { DRDY }
Apr 11 04:23:00 xenserver kernel: [277145.647523] ata1: hard resetting link
Apr 11 04:23:01 xenserver kernel: [277146.131362] ata2: softreset failed 
(device not ready)
Apr 11 04:23:01 xenserver kernel: [277146.131378] ata2: failed due to HW 
bug, retry pmp=0
Apr 11 04:23:01 xenserver kernel: [277146.131400] ata1: softreset failed 
(device not ready)
Apr 11 04:23:01 xenserver kernel: [277146.131409] ata1: failed due to HW 
bug, retry pmp=0
Apr 11 04:23:01 xenserver kernel: [277146.295250] ata1: SATA link up 3.0 
Gbps (SStatus 123 SControl 300)
Apr 11 04:23:01 xenserver kernel: [277146.295287] ata2: SATA link up 3.0 
Gbps (SStatus 123 SControl 300)
Apr 11 04:23:03 xenserver kernel: [277148.647303] hdc: DMA interrupt 
recovery
Apr 11 04:23:03 xenserver kernel: [277148.647316] hdc: lost interrupt
 Apr 11 04:23:24 xenserver kernel: [277168.647352] hdc: dma_timer_expiry: 
dma status == 0x64
Apr 11 04:23:31 xenserver kernel: [277176.295271] ata2.00: qc timeout 
(cmd 0xec)
Apr 11 04:23:31 xenserver kernel: [277176.295292] ata2.00: failed to 
IDENTIFY (I/O error, err_mask=0x4)
Apr 11 04:23:31 xenserver kernel: [277176.295301] ata2.00: revalidation 
failed (errno=-5)
Apr 11 04:23:31 xenserver kernel: [277176.295310] ata2: failed to 
recover some devices, retrying in 5 secs
Apr 11 04:23:31 xenserver kernel: [277176.295322] ata1.00: qc timeout 
(cmd 0xec)
Apr 11 04:23:31 xenserver kernel: [277176.295336] ata1.00: failed to 
IDENTIFY (I/O error, err_mask=0x4)
Apr 11 04:23:31 xenserver kernel: [277176.295344] ata1.00: revalidation 
failed (errno=-5)
Apr 11 04:23:31 xenserver kernel: [277176.295352] ata1: failed to 
recover some devices, retrying in 5 secs
Apr 11 04:23:33 xenserver kernel: [277178.647242] hdc: DMA interrupt 
recovery
Apr 11 04:23:33 xenserver kernel: [277178.647255] hdc: lost interrupt
Apr 11 04:23:36 xenserver kernel: [277181.299161] ata1: hard resetting link
Apr 11 04:23:36 xenserver kernel: [277181.299185] ata2: hard resetting link
 Apr 11 04:23:37 xenserver kernel: [277181.783130] ata2: softreset failed 
(device not ready)
Apr 11 04:23:37 xenserver kernel: [277181.783147] ata2: failed due to HW 
bug, retry pmp=0
Apr 11 04:23:37 xenserver kernel: [277181.783170] ata1: softreset failed 
(device not ready)
Apr 11 04:23:37 xenserver kernel: [277181.783178] ata1: failed due to HW 
bug, retry pmp=0
Apr 11 04:23:37 xenserver kernel: [277181.947140] ata1: SATA link up 3.0 
Gbps (SStatus 123 SControl 300)
Apr 11 04:23:37 xenserver kernel: [277181.947177] ata2: SATA link up 3.0 
Gbps (SStatus 123 SControl 300)
Apr 11 04:23:54 xenserver kernel: [277198.648158] hdc: dma_timer_expiry: 
dma status == 0x64
Apr 11 04:24:03 xenserver kernel: [277208.648119] hdc: DMA interrupt 
recovery
Apr 11 04:24:03 xenserver kernel: [277208.648131] hdc: lost interrupt
 Apr 11 04:24:05 xenserver kernel: [277210.437511] NETDEV WATCHDOG: 
peth0: transmit timed out
Apr 11 04:24:05 xenserver kernel: [277210.437533] ------------[ cut here 
]------------
Apr 11 04:24:05 xenserver kernel: [277210.437541] WARNING: at 
net/sched/sch_generic.c:222 dev_watchdog+0xa6/0x119()
Apr 11 04:24:05 xenserver kernel: [277210.437553] Modules linked in: 
xt_tcpudp xfs xt_physdev iptable_filter ip_tables x_tables bridge 
netloop ipv6 raid1 md_mod loop snd_hda_intel snd_pcm snd_timer snd 
psmouse soundcore pcspkr serio_raw snd_page_alloc i2c_piix4 i2c_core 
button wmi shpchp pci_hotplug evdev ext3 jbd mbcache dm_mirror dm_log 
dm_snapshot dm_mod ide_cd_mod cdrom ide_disk ide_pci_generic sd_mod 
atiixp ide_core ata_generic ahci ehci_hcd libata scsi_mod dock ohci_hcd 
r8169 thermal processor fan thermal_sys [last unloaded: scsi_wait_scan]
Apr 11 04:24:05 xenserver kernel: [277210.437736] Pid: 0, comm: swapper 
Not tainted 2.6.26-2-xen-amd64 #1
Apr 11 04:24:05 xenserver kernel: [277210.437744]
Apr 11 04:24:05 xenserver kernel: [277210.437745] Call Trace:
 Apr 11 04:24:05 xenserver kernel: [277210.437757]  <IRQ>  
[<ffffffff8022c9a2>] warn_on_slowpath+0x51/0x78
Apr 11 04:24:05 xenserver kernel: [277210.437774]  [<ffffffff8022d4f4>] 
printk+0x4e/0x56
Apr 11 04:24:05 xenserver kernel: [277210.437784]  [<ffffffff80235a70>] 
lock_timer_base+0x26/0x4b
Apr 11 04:24:05 xenserver kernel: [277210.437794]  [<ffffffff80235c16>] 
__mod_timer+0xd4/0xe3
Apr 11 04:24:05 xenserver kernel: [277210.437804]  [<ffffffff8023ca2f>] 
queue_delayed_work_on+0xb8/0xc8
Apr 11 04:24:05 xenserver kernel: [277210.437813]  [<ffffffff803d8161>] 
dev_watchdog+0x0/0x119
Apr 11 04:24:05 xenserver kernel: [277210.437822]  [<ffffffff803d8207>] 
dev_watchdog+0xa6/0x119
Apr 11 04:24:05 xenserver kernel: [277210.437831]  [<ffffffff802354df>] 
run_timer_softirq+0x190/0x237
Apr 11 04:24:05 xenserver kernel: [277210.437842]  [<ffffffff80231ad0>] 
__do_softirq+0x77/0x103
Apr 11 04:24:05 xenserver kernel: [277210.437852]  [<ffffffff8020c13c>] 
call_softirq+0x1c/0x28
Apr 11 04:24:05 xenserver kernel: [277210.437861]  [<ffffffff8020e092>] 
do_softirq+0x55/0xbb
Apr 11 04:24:05 xenserver kernel: [277210.437870]  [<ffffffff8020e175>] 
do_IRQ+0x7d/0x9a
Apr 11 04:24:05 xenserver kernel: [277210.437879]  [<ffffffff8037db2c>] 
evtchn_do_upcall+0x13c/0x1fc
Apr 11 04:24:05 xenserver kernel: [277210.437890]  [<ffffffff8020bbde>] 
do_hypervisor_callback+0x1e/0x30
Apr 11 04:24:05 xenserver kernel: [277210.437898]  <EOI>  
[<ffffffff8020e79d>] xen_safe_halt+0x90/0xa6
Apr 11 04:24:05 xenserver kernel: [277210.437916]  [<ffffffff8020a0ce>] 
xen_idle+0x2e/0x66
Apr 11 04:24:05 xenserver kernel: [277210.437924]  [<ffffffff80209d49>] 
cpu_idle+0x97/0xb9
Apr 11 04:24:05 xenserver kernel: [277210.437936]
 Apr 11 04:24:05 xenserver kernel: [277210.437942] ---[ end trace 
470e1e7e4a9eb321 ]---
Apr 11 04:24:06 xenserver kernel: [277210.456294] r8169: peth0: link up
 Apr 11 04:24:07 xenserver kernel: [277211.948161] ata2.00: qc timeout 
(cmd 0xec)
Apr 11 04:24:07 xenserver kernel: [277211.948182] ata2.00: failed to 
IDENTIFY (I/O error, err_mask=0x4)
Apr 11 04:24:07 xenserver kernel: [277211.948191] ata2.00: revalidation 
failed (errno=-5)
Apr 11 04:24:07 xenserver kernel: [277211.948199] ata2: failed to 
recover some devices, retrying in 5 secs
Apr 11 04:24:07 xenserver kernel: [277211.948211] ata1.00: qc timeout 
(cmd 0xec)
Apr 11 04:24:07 xenserver kernel: [277211.948225] ata1.00: failed to 
IDENTIFY (I/O error, err_mask=0x4)
Apr 11 04:24:07 xenserver kernel: [277211.948233] ata1.00: revalidation 
failed (errno=-5)
Apr 11 04:24:07 xenserver kernel: [277211.948240] ata1: failed to 
recover some devices, retrying in 5 secs
Apr 11 04:24:12 xenserver kernel: [277216.952165] ata1: hard resetting link
Apr 11 04:24:12 xenserver kernel: [277216.952189] ata2: hard resetting link
 Apr 11 04:24:12 xenserver kernel: [277217.436134] ata1: softreset failed 
(device not ready)
Apr 11 04:24:12 xenserver kernel: [277217.436150] ata1: failed due to HW 
bug, retry pmp=0
Apr 11 04:24:12 xenserver kernel: [277217.436173] ata2: softreset failed 
(device not ready)
Apr 11 04:24:12 xenserver kernel: [277217.436181] ata2: failed due to HW 
bug, retry pmp=0
Apr 11 04:24:12 xenserver kernel: [277217.600168] ata2: SATA link up 3.0 
Gbps (SStatus 123 SControl 300)
Apr 11 04:24:12 xenserver kernel: [277217.600210] ata1: SATA link up 3.0 
Gbps (SStatus 123 SControl 300)
Apr 11 04:24:17 xenserver kernel: [277222.438507] NETDEV WATCHDOG: 
peth0: transmit timed out
Apr 11 04:24:18 xenserver kernel: [277222.456219] r8169: peth0: link up
 Apr 11 04:24:24 xenserver kernel: [277228.648149] hdc: dma_timer_expiry: 
dma status == 0x64
Apr 11 04:24:29 xenserver kernel: [277234.439860] NETDEV WATCHDOG: 
peth0: transmit timed out
Apr 11 04:24:30 xenserver kernel: [277234.456241] r8169: peth0: link up
 Apr 11 04:24:33 xenserver kernel: [277238.648044] hdc: DMA interrupt 
recovery
Apr 11 04:24:33 xenserver kernel: [277238.648058] hdc: lost interrupt
 Apr 11 04:24:41 xenserver kernel: [277246.439954] NETDEV WATCHDOG: 
peth0: transmit timed out
Apr 11 04:24:42 xenserver kernel: [277246.456300] r8169: peth0: link up
 Apr 11 04:24:42 xenserver kernel: [277246.633366] INFO: task 
md0_raid1:2194 blocked for more than 120 seconds.
Apr 11 04:24:42 xenserver kernel: [277246.633382] "echo 0 > 
/proc/sys/kernel/hung_task_timeout_secs" disables this message.
Apr 11 04:24:42 xenserver kernel: [277246.633394] md0_raid1     D 
ffffffff80449f00     0  2194      2
Apr 11 04:24:42 xenserver kernel: [277246.633408]  ffff8800e0169cc0 
0000000000000246 0000000000000000 ffff8800e2a2fac0
Apr 11 04:24:42 xenserver kernel: [277246.633429]  ffff8800e2ad2480 
ffffffff804fe460 ffff8800e2ad2700 00000000e02c2528
Apr 11 04:24:42 xenserver kernel: [277246.633450]  00000000ffffffff 
ffff880093da90c0 000000000000ffff 000000007470593f
Apr 11 04:24:42 xenserver kernel: [277246.633465] Call Trace:
 Apr 11 04:24:42 xenserver kernel: [277246.634648]  [<ffffffff802ff7a6>] 
generic_make_request+0x2fe/0x339
Apr 11 04:24:42 xenserver kernel: [277246.634664]  [<ffffffffa0232413>] 
:md_mod:md_super_wait+0xee/0x107
Apr 11 04:24:42 xenserver kernel: [277246.634674]  [<ffffffff8023f4e5>] 
autoremove_wake_function+0x0/0x2e
Apr 11 04:24:42 xenserver kernel: [277246.634688]  [<ffffffffa02328a3>] 
:md_mod:md_update_sb+0x2a0/0x38f
Apr 11 04:24:42 xenserver kernel: [277246.634702]  [<ffffffffa0237016>] 
:md_mod:md_check_recovery+0x1c9/0x504
Apr 11 04:24:42 xenserver kernel: [277246.634714]  [<ffffffffa0246239>] 
:raid1:raid1d+0x26/0xd73
Apr 11 04:24:42 xenserver kernel: [277246.634724]  [<ffffffff804369b7>] 
error_exit+0x0/0x69
Apr 11 04:24:42 xenserver kernel: [277246.634734]  [<ffffffff804369b7>] 
error_exit+0x0/0x69
Apr 11 04:24:42 xenserver kernel: [277246.634744]  [<ffffffff80434efe>] 
schedule_timeout+0x1e/0xad
Apr 11 04:24:42 xenserver kernel: [277246.634754]  [<ffffffff8030dc91>] 
__next_cpu+0x19/0x26
Apr 11 04:24:42 xenserver kernel: [277246.634766]  [<ffffffffa02357d2>] 
:md_mod:md_thread+0xd7/0xed
Apr 11 04:24:42 xenserver kernel: [277246.634775]  [<ffffffff8023f4e5>] 
autoremove_wake_function+0x0/0x2e
Apr 11 04:24:42 xenserver kernel: [277246.634788]  [<ffffffffa02356fb>] 
:md_mod:md_thread+0x0/0xed
Apr 11 04:24:42 xenserver kernel: [277246.634796]  [<ffffffff8023f3b7>] 
kthread+0x47/0x74
Apr 11 04:24:42 xenserver kernel: [277246.634805]  [<ffffffff8022817c>] 
schedule_tail+0x27/0x5c
Apr 11 04:24:42 xenserver kernel: [277246.634814]  [<ffffffff8020be28>] 
child_rip+0xa/0x12
Apr 11 04:24:42 xenserver kernel: [277246.634825]  [<ffffffff8023f370>] 
kthread+0x0/0x74
Apr 11 04:24:42 xenserver kernel: [277246.634833]  [<ffffffff8020be1e>] 
child_rip+0x0/0x12
Apr 11 04:24:42 xenserver kernel: [277246.634841]
 Apr 11 04:24:42 xenserver kernel: [277246.634856] INFO: task 
blkback.2.sda6:4518 blocked for more than 120 seconds.
Apr 11 04:24:42 xenserver kernel: [277246.634867] "echo 0 > 
/proc/sys/kernel/hung_task_timeout_secs" disables this message.
Apr 11 04:24:42 xenserver kernel: [277246.634878] blkback.2.sda D 
00000000000000ff     0  4518      2
Apr 11 04:24:42 xenserver kernel: [277246.634891]  ffff880093e999c0 
0000000000000246 0000000000000001 ffff8800e0169ee0
Apr 11 04:24:42 xenserver kernel: [277246.634911]  ffff8800e2057600 
ffff8800e2ad2480 ffff8800e2057880 0000000000000000
Apr 11 04:24:42 xenserver kernel: [277246.634932]  ffff880093e99980 
ffffffff8023f4ee ffff8800e23d3ec0 ffffffff802213e5
Apr 11 04:24:42 xenserver kernel: [277246.634947] Call Trace:
 Apr 11 04:24:42 xenserver kernel: [277246.634961]  [<ffffffff8023f4ee>] 
autoremove_wake_function+0x9/0x2e
Apr 11 04:24:42 xenserver kernel: [277246.634970]  [<ffffffff802213e5>] 
__wake_up_common+0x41/0x74
Apr 11 04:24:42 xenserver kernel: [277246.634981]  [<ffffffff802d54cc>] 
sysfs_find_dirent+0x1b/0x2f
Apr 11 04:24:42 xenserver kernel: [277246.634994]  [<ffffffffa02364f3>] 
:md_mod:md_write_start+0x160/0x178
Apr 11 04:24:42 xenserver kernel: [277246.635003]  [<ffffffff8023f4e5>] 
autoremove_wake_function+0x0/0x2e
Apr 11 04:24:42 xenserver kernel: [277246.635016]  [<ffffffffa00f43f8>] 
:dm_mod:__split_bio+0x363/0x374
Apr 11 04:24:42 xenserver kernel: [277246.635026]  [<ffffffffa0246faf>] 
:raid1:make_request+0x29/0x5b6
Apr 11 04:24:42 xenserver kernel: [277246.635036]  [<ffffffff803117f7>] 
__up_read+0x13/0x8a
Apr 11 04:24:42 xenserver kernel: [277246.635046]  [<ffffffff802ff7a6>] 
generic_make_request+0x2fe/0x339
Apr 11 04:24:42 xenserver kernel: [277246.635056]  [<ffffffff80266983>] 
mempool_alloc+0x24/0xda
Apr 11 04:24:42 xenserver kernel: [277246.635067]  [<ffffffff80300a80>] 
submit_bio+0xdb/0xe2
Apr 11 04:24:42 xenserver kernel: [277246.635077]  [<ffffffff80386e68>] 
dispatch_rw_block_io+0x5b9/0x65d
Apr 11 04:24:42 xenserver kernel: [277246.635102]  [<ffffffff802ff83b>] 
blk_unplug+0x5a/0x60
Apr 11 04:24:42 xenserver kernel: [277246.635115]  [<ffffffffa00f5b19>] 
:dm_mod:dm_table_unplug_all+0x2a/0x3d
Apr 11 04:24:42 xenserver kernel: [277246.635125]  [<ffffffff8038735b>] 
blkif_schedule+0x3c7/0x4dc
Apr 11 04:24:42 xenserver kernel: [277246.635137]  [<ffffffff80386f94>] 
blkif_schedule+0x0/0x4dc
Apr 11 04:24:42 xenserver kernel: [277246.635146]  [<ffffffff8023f3b7>] 
kthread+0x47/0x74
Apr 11 04:24:42 xenserver kernel: [277246.635155]  [<ffffffff8022817c>] 
schedule_tail+0x27/0x5c
Apr 11 04:24:42 xenserver kernel: [277246.635163]  [<ffffffff8020be28>] 
child_rip+0xa/0x12
Apr 11 04:24:42 xenserver kernel: [277246.635174]  [<ffffffff8023f370>] 
kthread+0x0/0x74
Apr 11 04:24:42 xenserver kernel: [277246.635183]  [<ffffffff8020be1e>] 
child_rip+0x0/0x12
Apr 11 04:24:42 xenserver kernel: [277246.635191]
 Apr 11 04:24:43 xenserver kernel: [277247.601345] ata1.00: qc timeout 
(cmd 0xec)
Apr 11 04:24:43 xenserver kernel: [277247.601366] ata1.00: failed to 
IDENTIFY (I/O error, err_mask=0x4)
Apr 11 04:24:43 xenserver kernel: [277247.601375] ata1.00: revalidation 
failed (errno=-5)
Apr 11 04:24:43 xenserver kernel: [277247.601383] ata1.00: disabled
 Apr 11 04:24:43 xenserver kernel: [277247.601396] ata2.00: qc timeout 
(cmd 0xec)
Apr 11 04:24:43 xenserver kernel: [277247.601410] ata2.00: failed to 
IDENTIFY (I/O error, err_mask=0x4)
Apr 11 04:24:43 xenserver kernel: [277247.601418] ata2.00: revalidation 
failed (errno=-5)
Apr 11 04:24:43 xenserver kernel: [277247.601425] ata2.00: disabled
Apr 11 04:24:43 xenserver kernel: [277248.105346] ata2: hard resetting link
Apr 11 04:24:43 xenserver kernel: [277248.105372] ata1: hard resetting link
 Apr 11 04:24:43 xenserver kernel: [277248.589302] ata1: softreset failed 
(device not ready)
Apr 11 04:24:43 xenserver kernel: [277248.589319] ata1: failed due to HW 
bug, retry pmp=0
Apr 11 04:24:43 xenserver kernel: [277248.589341] ata2: softreset failed 
(device not ready)
Apr 11 04:24:43 xenserver kernel: [277248.589350] ata2: failed due to HW 
bug, retry pmp=0
Apr 11 04:24:44 xenserver kernel: [277248.753334] ata2: SATA link up 3.0 
Gbps (SStatus 123 SControl 300)
Apr 11 04:24:44 xenserver kernel: [277248.753366] ata2: EH complete
 Apr 11 04:24:44 xenserver kernel: [277248.753384] sd 1:0:0:0: [sdb] 
Result: hostbyte=DID_BAD_TARGET driverbyte=DRIVER_OK,SUGGEST_OK
Apr 11 04:24:44 xenserver kernel: [277248.753399] end_request: I/O 
error, dev sdb, sector 1953519935
Apr 11 04:24:44 xenserver kernel: [277248.753410] end_request: I/O 
error, dev sdb, sector 1953519935
Apr 11 04:24:44 xenserver kernel: [277248.753421] md: super_written gets 
error=-5, uptodate=0
Apr 11 04:24:44 xenserver kernel: [277248.753431] raid1: Disk failure on 
sdb1, disabling device.
Apr 11 04:24:44 xenserver kernel: [277248.753432] raid1: Operation 
continuing on 1 devices.
Apr 11 04:24:44 xenserver kernel: [277248.753466] ata1: SATA link up 3.0 
Gbps (SStatus 123 SControl 300)
Apr 11 04:24:44 xenserver kernel: [277248.753479] ata1: EH complete
 Apr 11 04:24:44 xenserver kernel: [277248.753490] sd 0:0:0:0: [sda] 
Result: hostbyte=DID_BAD_TARGET driverbyte=DRIVER_OK,SUGGEST_OK
Apr 11 04:24:44 xenserver kernel: [277248.753505] end_request: I/O 
error, dev sda, sector 1953519935
Apr 11 04:24:44 xenserver kernel: [277248.753515] end_request: I/O 
error, dev sda, sector 1953519935
Apr 11 04:24:44 xenserver kernel: [277248.753524] md: super_written gets 
error=-5, uptodate=0
Apr 11 04:24:44 xenserver kernel: [277248.753551] sd 0:0:0:0: [sda] 
Result: hostbyte=DID_BAD_TARGET driverbyte=DRIVER_OK,SUGGEST_OK
Apr 11 04:24:44 xenserver kernel: [277248.753566] end_request: I/O 
error, dev sda, sector 1953519935
Apr 11 04:24:44 xenserver kernel: [277248.753576] end_request: I/O 
error, dev sda, sector 1953519935
Apr 11 04:24:44 xenserver kernel: [277248.753585] md: super_written gets 
error=-5, uptodate=0
Apr 11 04:24:44 xenserver kernel: [277248.753596] RAID1 conf printout:
Apr 11 04:24:44 xenserver kernel: [277248.753603]  --- wd:1 rd:2
 Apr 11 04:24:44 xenserver kernel: [277248.753610]  disk 0, wo:0, o:1, 
dev:sda1
Apr 11 04:24:44 xenserver kernel: [277248.753618]  disk 1, wo:1, o:0, 
dev:sdb1
Apr 11 04:24:44 xenserver kernel: [277248.765416] RAID1 conf printout:
Apr 11 04:24:44 xenserver kernel: [277248.765431]  --- wd:1 rd:2
From lspci -v:
00:00.0 Host bridge: Advanced Micro Devices [AMD] RS780 Host Bridge
       Subsystem: Advanced Micro Devices [AMD] RS780 Host Bridge
       Flags: bus master, 66MHz, medium devsel, latency 0
       Capabilities: [c4] HyperTransport: Slave or Primary Interface
       Capabilities: [54] HyperTransport: UnitID Clumping
       Capabilities: [40] HyperTransport: Retry Mode
       Capabilities: [9c] HyperTransport: #1a
       Capabilities: [f8] HyperTransport: #1c
00:01.0 PCI bridge: Advanced Micro Devices [AMD] RS780 PCI to PCI bridge 
(int gfx) (prog-if 00 [Normal decode])
       Flags: bus master, 66MHz, medium devsel, latency 64
       Bus: primary=00, secondary=01, subordinate=01, sec-latency=64
       I/O behind bridge: 0000b000-0000bfff
       Memory behind bridge: fe700000-fe8fffff
       Prefetchable memory behind bridge: 00000000c0000000-00000000cfffffff
       Capabilities: [44] HyperTransport: MSI Mapping Enable+ Fixed+
       Capabilities: [b0] Subsystem: Advanced Micro Devices [AMD] RS780 
PCI to PCI bridge (int gfx)
       Kernel modules: shpchp
00:04.0 PCI bridge: Advanced Micro Devices [AMD] RS780 PCI to PCI bridge 
(PCIE port 0) (prog-if 00 [Normal decode])
       Flags: bus master, fast devsel, latency 0
       Bus: primary=00, secondary=02, subordinate=02, sec-latency=0
       I/O behind bridge: 0000c000-0000cfff
       Memory behind bridge: fe900000-fe9fffff
       Prefetchable memory behind bridge: 00000000d0000000-00000000d00fffff
       Capabilities: [50] Power Management version 3
       Capabilities: [58] Express Root Port (Slot+), MSI 00
       Capabilities: [a0] Message Signalled Interrupts: Mask- 64bit- 
Queue=0/0 Enable-
       Capabilities: [b0] Subsystem: Advanced Micro Devices [AMD] 
Device 9600
       Capabilities: [b8] HyperTransport: MSI Mapping Enable+ Fixed+
       Capabilities: [100] Vendor Specific Information <?>
       Capabilities: [110] Virtual Channel <?>
       Kernel driver in use: pcieport-driver
       Kernel modules: shpchp
00:07.0 PCI bridge: Advanced Micro Devices [AMD] RS780 PCI to PCI bridge 
(PCIE port 3) (prog-if 00 [Normal decode])
       Flags: bus master, fast devsel, latency 0
       Bus: primary=00, secondary=03, subordinate=03, sec-latency=0
       I/O behind bridge: 0000d000-0000dfff
       Memory behind bridge: fea00000-feafffff
       Prefetchable memory behind bridge: 00000000dff00000-00000000dfffffff
       Capabilities: [50] Power Management version 3
       Capabilities: [58] Express Root Port (Slot+), MSI 00
       Capabilities: [a0] Message Signalled Interrupts: Mask- 64bit- 
Queue=0/0 Enable-
       Capabilities: [b0] Subsystem: Advanced Micro Devices [AMD] 
Device 9600
       Capabilities: [b8] HyperTransport: MSI Mapping Enable+ Fixed+
       Capabilities: [100] Vendor Specific Information <?>
       Capabilities: [110] Virtual Channel <?>
       Kernel driver in use: pcieport-driver
       Kernel modules: shpchp
00:11.0 SATA controller: ATI Technologies Inc SB700/SB800 SATA 
Controller [IDE mode] (prog-if 01 [AHCI 1.0])
       Subsystem: Biostar Microtech Int'l Corp Device 3700
       Flags: bus master, 66MHz, medium devsel, latency 64, IRQ 22
       I/O ports at a000 [size=8]
       I/O ports at 9000 [size=4]
       I/O ports at 8000 [size=8]
       I/O ports at 7000 [size=4]
       I/O ports at 6000 [size=16]
       Memory at fe6ff800 (32-bit, non-prefetchable) [size=1K]
       Capabilities: [60] Power Management version 2
       Capabilities: [70] SATA HBA <?>
       Kernel driver in use: ahci
       Kernel modules: ahci
00:12.0 USB Controller: ATI Technologies Inc SB700/SB800 USB OHCI0 
Controller (prog-if 10 [OHCI])
       Subsystem: Biostar Microtech Int'l Corp Device 3700
       Flags: bus master, 66MHz, medium devsel, latency 64, IRQ 16
       Memory at fe6fe000 (32-bit, non-prefetchable) [size=4K]
       Kernel driver in use: ohci_hcd
       Kernel modules: ohci-hcd
00:12.1 USB Controller: ATI Technologies Inc SB700 USB OHCI1 Controller 
(prog-if 10 [OHCI])
       Subsystem: Biostar Microtech Int'l Corp Device 3700
       Flags: bus master, 66MHz, medium devsel, latency 64, IRQ 16
       Memory at fe6fd000 (32-bit, non-prefetchable) [size=4K]
       Kernel driver in use: ohci_hcd
       Kernel modules: ohci-hcd
00:12.2 USB Controller: ATI Technologies Inc SB700/SB800 USB EHCI 
Controller (prog-if 20 [EHCI])
       Subsystem: Biostar Microtech Int'l Corp Device 3700
       Flags: bus master, 66MHz, medium devsel, latency 64, IRQ 17
       Memory at fe6ff000 (32-bit, non-prefetchable) [size=256]
       Capabilities: [c0] Power Management version 2
       Capabilities: [e4] Debug port: BAR=1 offset=00e0
       Kernel driver in use: ehci_hcd
       Kernel modules: ehci-hcd
00:13.0 USB Controller: ATI Technologies Inc SB700/SB800 USB OHCI0 
Controller (prog-if 10 [OHCI])
       Subsystem: Biostar Microtech Int'l Corp Device 3700
       Flags: bus master, 66MHz, medium devsel, latency 64, IRQ 18
       Memory at fe6fc000 (32-bit, non-prefetchable) [size=4K]
       Kernel driver in use: ohci_hcd
       Kernel modules: ohci-hcd
00:13.1 USB Controller: ATI Technologies Inc SB700 USB OHCI1 Controller 
(prog-if 10 [OHCI])
       Subsystem: Biostar Microtech Int'l Corp Device 3700
       Flags: bus master, 66MHz, medium devsel, latency 64, IRQ 18
       Memory at fe6fb000 (32-bit, non-prefetchable) [size=4K]
       Kernel driver in use: ohci_hcd
       Kernel modules: ohci-hcd
00:13.2 USB Controller: ATI Technologies Inc SB700/SB800 USB EHCI 
Controller (prog-if 20 [EHCI])
       Subsystem: Biostar Microtech Int'l Corp Device 3700
       Flags: bus master, 66MHz, medium devsel, latency 64, IRQ 19
       Memory at fe6fa800 (32-bit, non-prefetchable) [size=256]
       Capabilities: [c0] Power Management version 2
       Capabilities: [e4] Debug port: BAR=1 offset=00e0
       Kernel driver in use: ehci_hcd
       Kernel modules: ehci-hcd
00:14.0 SMBus: ATI Technologies Inc SBx00 SMBus Controller (rev 3a)
       Subsystem: Biostar Microtech Int'l Corp Device 3700
       Flags: 66MHz, medium devsel
       Capabilities: [b0] HyperTransport: MSI Mapping Enable- Fixed+
       Kernel driver in use: piix4_smbus
       Kernel modules: i2c-piix4
00:14.1 IDE interface: ATI Technologies Inc SB700/SB800 IDE Controller 
(prog-if 8a [Master SecP PriP])
       Subsystem: ATI Technologies Inc SB700/SB800 IDE Controller
       Flags: bus master, 66MHz, medium devsel, latency 0, IRQ 16
       I/O ports at 01f0 [size=8]
       I/O ports at 03f4 [size=1]
       I/O ports at 0170 [size=8]
       I/O ports at 0374 [size=1]
       I/O ports at ff00 [size=16]
       Capabilities: [70] Message Signalled Interrupts: Mask- 64bit- 
Queue=0/1 Enable-
       Kernel driver in use: ATIIXP_IDE
       Kernel modules: atiixp, ide-pci-generic, ata_generic
00:14.2 Audio device: ATI Technologies Inc SBx00 Azalia (Intel HDA)
       Subsystem: Biostar Microtech Int'l Corp Device 8218
       Flags: bus master, slow devsel, latency 64, IRQ 16
       Memory at fe6f4000 (64-bit, non-prefetchable) [size=16K]
       Capabilities: [50] Power Management version 2
       Kernel driver in use: HDA Intel
       Kernel modules: snd-hda-intel
00:14.3 ISA bridge: ATI Technologies Inc SB700/SB800 LPC host controller
       Subsystem: Biostar Microtech Int'l Corp Device 3700
       Flags: bus master, 66MHz, medium devsel, latency 0
00:14.4 PCI bridge: ATI Technologies Inc SBx00 PCI to PCI Bridge 
(prog-if 01 [Subtractive decode])
       Flags: bus master, 66MHz, medium devsel, latency 64
       Bus: primary=00, secondary=04, subordinate=05, sec-latency=64
       I/O behind bridge: 0000e000-0000efff
       Memory behind bridge: feb00000-febfffff
       Prefetchable memory behind bridge: f0000000-fbffffff
00:14.5 USB Controller: ATI Technologies Inc SB700/SB800 USB OHCI2 
Controller (prog-if 10 [OHCI])
       Subsystem: Biostar Microtech Int'l Corp Device 3700
       Flags: bus master, 66MHz, medium devsel, latency 64, IRQ 18
       Memory at fe6f9000 (32-bit, non-prefetchable) [size=4K]
       Kernel driver in use: ohci_hcd
       Kernel modules: ohci-hcd
00:18.0 Host bridge: Advanced Micro Devices [AMD] Family 10h [Opteron, 
Athlon64, Sempron] HyperTransport Configuration
       Flags: fast devsel
       Capabilities: [80] HyperTransport: Host or Secondary Interface
00:18.1 Host bridge: Advanced Micro Devices [AMD] Family 10h [Opteron, 
Athlon64, Sempron] Address Map
       Flags: fast devsel
00:18.2 Host bridge: Advanced Micro Devices [AMD] Family 10h [Opteron, 
Athlon64, Sempron] DRAM Controller
       Flags: fast devsel
00:18.3 Host bridge: Advanced Micro Devices [AMD] Family 10h [Opteron, 
Athlon64, Sempron] Miscellaneous Control
       Flags: fast devsel
       Capabilities: [f0] Secure device <?>
00:18.4 Host bridge: Advanced Micro Devices [AMD] Family 10h [Opteron, 
Athlon64, Sempron] Link Control
       Flags: fast devsel
01:05.0 VGA compatible controller: ATI Technologies Inc Radeon HD 3300 
Graphics (prog-if 00 [VGA controller])
       Subsystem: Biostar Microtech Int'l Corp Device 0217
       Flags: bus master, fast devsel, latency 0, IRQ 7
       Memory at c0000000 (32-bit, prefetchable) [size=256M]
       I/O ports at b000 [size=256]
       Memory at fe8f0000 (32-bit, non-prefetchable) [size=64K]
       Memory at fe700000 (32-bit, non-prefetchable) [size=1M]
       Capabilities: [50] Power Management version 3
       Capabilities: [a0] Message Signalled Interrupts: Mask- 64bit+ 
Queue=0/0 Enable-
 02:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. 
RTL8111/8168B PCI Express Gigabit Ethernet controller (rev 01)
       Subsystem: Realtek Semiconductor Co., Ltd. RTL8111/8168B PCI 
Express Gigabit Ethernet controller
       Flags: bus master, fast devsel, latency 0, IRQ 16
       I/O ports at c800 [size=256]
       Memory at fe9ff000 (64-bit, non-prefetchable) [size=4K]
       [virtual] Expansion ROM at d0000000 [disabled] [size=128K]
       Capabilities: [40] Power Management version 2
       Capabilities: [48] Vital Product Data <?>
       Capabilities: [50] Message Signalled Interrupts: Mask- 64bit+ 
Queue=0/1 Enable-
       Capabilities: [60] Express Endpoint, MSI 00
       Capabilities: [84] Vendor Specific Information <?>
       Capabilities: [100] Advanced Error Reporting <?>
       Capabilities: [12c] Virtual Channel <?>
       Capabilities: [148] Device Serial Number 00-e0-4c-68-00-00-00-fd
       Capabilities: [154] Power Budgeting <?>
       Kernel driver in use: pciback
       Kernel modules: r8169
03:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. 
RTL8111/8168B PCI Express Gigabit Ethernet controller (rev 03)
       Subsystem: Biostar Microtech Int'l Corp Device 2309
       Flags: bus master, fast devsel, latency 0, IRQ 19
       I/O ports at d800 [size=256]
       Memory at dffff000 (64-bit, prefetchable) [size=4K]
       Memory at dfff8000 (64-bit, prefetchable) [size=16K]
       Expansion ROM at feae0000 [disabled] [size=128K]
       Capabilities: [40] Power Management version 3
       Capabilities: [50] Message Signalled Interrupts: Mask- 64bit+ 
Queue=0/0 Enable-
       Capabilities: [70] Express Endpoint, MSI 01
       Capabilities: [ac] MSI-X: Enable- Mask- TabSize=4
       Capabilities: [cc] Vital Product Data <?>
       Capabilities: [100] Advanced Error Reporting <?>
       Capabilities: [140] Virtual Channel <?>
       Capabilities: [160] Device Serial Number 00-e0-4c-68-00-00-02-61
       Kernel driver in use: r8169
       Kernel modules: r8169
04:05.0 PCI bridge: Pericom Semiconductor Device 8140 (prog-if 00 
[Normal decode])
       Flags: bus master, 66MHz, medium devsel, latency 64
       Bus: primary=04, secondary=05, subordinate=05, sec-latency=64
       Prefetchable memory behind bridge: 00000000f4000000-00000000fbffffff
       Capabilities: [80] Power Management version 2
       Capabilities: [90] CompactPCI hot-swap <?>
       Kernel modules: shpchp
04:06.0 Multimedia video controller: Internext Compression Inc iTVC16 
(CX23416) MPEG-2 Encoder (rev 01)
       Subsystem: Hauppauge computer works Inc. WinTV PVR 250
       Flags: medium devsel, IRQ 21
       Memory at f0000000 (32-bit, prefetchable) [disabled] [size=64M]
       Capabilities: [44] Power Management version 2
       Kernel driver in use: pciback
       Kernel modules: ivtv
04:07.0 Ethernet controller: D-Link System Inc DGE-530T Gigabit Ethernet 
Adapter (rev 11) (rev 11)
       Subsystem: D-Link System Inc DGE-530T Gigabit Ethernet Adapter 
(rev 11)
       Flags: bus master, 66MHz, medium devsel, latency 64, IRQ 22
       Memory at febfc000 (32-bit, non-prefetchable) [size=16K]
       I/O ports at e800 [size=256]
       Expansion ROM at feb00000 [disabled] [size=128K]
       Capabilities: [48] Power Management version 2
       Capabilities: [50] Vital Product Data <?>
       Kernel driver in use: pciback
       Kernel modules: skge
05:08.0 Multimedia video controller: Internext Compression Inc iTVC16 
(CX23416) MPEG-2 Encoder (rev 01)
       Subsystem: Hauppauge computer works Inc. WinTV PVR 500 (1st unit)
       Flags: medium devsel, IRQ 20
       Memory at f8000000 (32-bit, prefetchable) [disabled] [size=64M]
       Capabilities: [44] Power Management version 2
       Kernel driver in use: pciback
       Kernel modules: ivtv
05:09.0 Multimedia video controller: Internext Compression Inc iTVC16 
(CX23416) MPEG-2 Encoder (rev 01)
       Subsystem: Hauppauge computer works Inc. WinTV PVR 500 (2nd unit)
       Flags: medium devsel, IRQ 21
       Memory at f4000000 (32-bit, prefetchable) [disabled] [size=64M]
       Capabilities: [44] Power Management version 2
       Kernel driver in use: pciback
       Kernel modules: ivtv
From /proc/interrupts:
          CPU0       CPU1       CPU2       CPU3      
 1:         58          0          0          0  Phys-irq-level     i8042
 8:          0          0          0          0  Phys-irq-level     rtc0
 9:          0          0          0          0  Phys-irq-level     acpi
12:          4          0          0          0  Phys-irq-level     i8042
14:          0          0          0          0  Phys-irq-level     ide0
15:      59700          0          0          0  Phys-irq-level     ide1
 16:     339121          0          0          0  Phys-irq-level     
ohci_hcd:usb1, ohci_hcd:usb2, HDA Intel
17:          0          0          0          0  Phys-irq-level     
ehci_hcd:usb5
18:          3          0          0          0  Phys-irq-level     
ohci_hcd:usb3, ohci_hcd:usb4, ohci_hcd:usb7
19:     174793          0          0          0  Phys-irq-level     
ehci_hcd:usb6, peth0
22:     645023          0          0          0  Phys-irq-level     ahci
 256:     450281          0          0          0  Dynamic-irq-level     
timer0
257:       4704          0          0          0  Dynamic-irq-level     
resched0
258:         43          0          0          0  Dynamic-irq-level     
callfunc0
259:        731          0          0          0  Dynamic-irq-level     
spinlock0
260:          0       2805          0          0  Dynamic-irq-level     
resched1
261:          0        189          0          0  Dynamic-irq-level     
callfunc1
262:          0        543          0          0  Dynamic-irq-level     
spinlock1
263:          0      58565          0          0  Dynamic-irq-level     
timer1
264:          0          0       4449          0  Dynamic-irq-level     
resched2
265:          0          0        177          0  Dynamic-irq-level     
callfunc2
266:          0          0        570          0  Dynamic-irq-level     
spinlock2
267:          0          0      43025          0  Dynamic-irq-level     
timer2
268:          0          0          0       3650  Dynamic-irq-level     
resched3
269:          0          0          0        176  Dynamic-irq-level     
callfunc3
270:          0          0          0        652  Dynamic-irq-level     
spinlock3
271:          0          0          0      24529  Dynamic-irq-level     
timer3
272:       5815          0          0          0  Dynamic-irq-level     
xenbus
273:          0          0          0          0  Dynamic-irq-level     
console
274:          0          0          0          0  Dynamic-irq-level     
suspend
275:        406          0          0          0  Dynamic-irq-level     
pciback
276:         36          0          0          0  Dynamic-irq-level     
blkif-backend
277:        162          0          0          0  Dynamic-irq-level     
blkif-backend
278:       1939          0          0          0  Dynamic-irq-level     
blkif-backend
279:     178850          0          0          0  Dynamic-irq-level     
vif1.0
280:      28670          0          0          0  Dynamic-irq-level     
vif1.1
281:       4372          0          0          0  Dynamic-irq-level     
blkif-backend
282:       1227          0          0          0  Dynamic-irq-level     
blkif-backend
283:       8079          0          0          0  Dynamic-irq-level     
blkif-backend
284:        177          0          0          0  Dynamic-irq-level     
blkif-backend
285:        106          0          0          0  Dynamic-irq-level     
blkif-backend
286:      43937          0          0          0  Dynamic-irq-level     
blkif-backend
287:      28211          0          0          0  Dynamic-irq-level     
vif2.0
288:       2950          0          0          0  Dynamic-irq-level     
blkif-backend
289:       5669          0          0          0  Dynamic-irq-level     
blkif-backend
290:         83          0          0          0  Dynamic-irq-level     
blkif-backend
291:        148          0          0          0  Dynamic-irq-level     
blkif-backend
292:         40          0          0          0  Dynamic-irq-level     
blkif-backend
293:      98438          0          0          0  Dynamic-irq-level     
blkif-backend
294:      64518          0          0          0  Dynamic-irq-level     
vif3.0
NMI:          0          0          0          0   Non-maskable interrupts
RES:       4704       2805       4449       3650   Rescheduling interrupts
CAL:         43        189        177        176   function call interrupts
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