[Xen-users] PCI delegation and IRQ error

[Leandro Rey <leandrorey@xxxxxxxxx>]

Hi,

I am facing some problems in delegating a nic from dom0 to domu (a Firewall)

Everythig was runnig fine until:

Jul  9 20:18:59 Icaro2 kernel: irq 16: nobody cared (try booting with 
the "irqpoll" option)
Jul  9 20:18:59 Icaro2 kernel:  [<c013afef>] __report_bad_irq+0x2b/0x69
Jul  9 20:18:59 Icaro2 kernel:  [<c013b1e0>] note_interrupt+0x1b3/0x1eb
Jul  9 20:18:59 Icaro2 kernel:  [<c013a845>] handle_IRQ_event+0x49/0x51
Jul  9 20:18:59 Icaro2 kernel:  [<c013a900>] __do_IRQ+0xb3/0xe8
Jul  9 20:18:59 Icaro2 kernel:  [<c010612c>] do_IRQ+0x43/0x53
Jul  9 20:18:59 Icaro2 kernel:  [<c020c0f4>] evtchn_do_upcall+0x64/0x9b
Jul  9 20:18:59 Icaro2 kernel:  [<c0104a51>] hypervisor_callback+0x3d/0x48
Jul  9 20:18:59 Icaro2 kernel:  [<c010732e>] raw_safe_halt+0x8c/0xaf
Jul  9 20:18:59 Icaro2 kernel:  [<c0102c5f>] xen_idle+0x22/0x2e
Jul  9 20:18:59 Icaro2 kernel:  [<c0102d7e>] cpu_idle+0x91/0xab
Jul  9 20:18:59 Icaro2 kernel:  [<c03256fc>] start_kernel+0x378/0x37f
Jul  9 20:18:59 Icaro2 kernel: handlers:
Jul  9 20:18:59 Icaro2 kernel: [<cd1a2aaf>] 
(snd_intel8x0_interrupt+0x0/0x1c3 [snd_intel8x0])
Jul  9 20:18:59 Icaro2 kernel: Disabling IRQ #16

After this, delegated nic stops working on the Firewall.


In Dom0 I have:

Icaro2:/boot/grub# lspci
00:00.0 Host bridge: Silicon Integrated Systems [SiS] 
661FX/M661FX/M661MX Host (rev 11)
00:01.0 PCI bridge: Silicon Integrated Systems [SiS] SiS AGP Port 
(virtual PCI-to-PCI bridge)
00:02.0 ISA bridge: Silicon Integrated Systems [SiS] SiS964 [MuTIOL 
Media IO] (rev 36)
00:02.5 IDE interface: Silicon Integrated Systems [SiS] 5513 [IDE] (rev 01)
00:02.7 Multimedia audio controller: Silicon Integrated Systems [SiS] 
AC'97 Sound Controller (rev a0)
00:03.0 USB Controller: Silicon Integrated Systems [SiS] USB 1.0 
Controller (rev 0f)
00:03.1 USB Controller: Silicon Integrated Systems [SiS] USB 1.0 
Controller (rev 0f)
00:03.2 USB Controller: Silicon Integrated Systems [SiS] USB 1.0 
Controller (rev 0f)
00:03.3 USB Controller: Silicon Integrated Systems [SiS] USB 2.0 Controller
00:05.0 IDE interface: Silicon Integrated Systems [SiS] RAID bus 
controller 180 SATA/PATA  [SiS] (rev 01)
00:0a.0 Ethernet controller: Realtek Semiconductor Co., Ltd. 
RTL-8139/8139C/8139C+ (rev 10)
00:0f.0 Ethernet controller: Realtek Semiconductor Co., Ltd. 
RTL-8139/8139C/8139C+ (rev 10)
01:00.0 VGA compatible controller: Silicon Integrated Systems [SiS] 
661/741/760/761 PCI/AGP VGA Display Adapter
In menu.lst:

title           Xen 3.0.3-1-i386-pae / Debian GNU/Linux, kernel 
2.6.18-4-xen-686
root            (hd0,0)
kernel          /xen-3.0.3-1-i386-pae.gz dom0_mem=192M
module          /vmlinuz-2.6.18-4-xen-686 
root=/dev/mapper/lvm--icaro-host ro console=tty0 pciback.hide=(00:0a.0)
module          /initrd.img-2.6.18-4-xen-686

Icaro2:/boot/grub# cat /proc/interrupts
          CPU0
 7:          0        Phys-irq  parport0
 8:          1        Phys-irq  rtc
 9:          0        Phys-irq  acpi
14:         74        Phys-irq  ide0
16:      24940        Phys-irq  SiS SI7012
18:       7895        Phys-irq  ohci_hcd:usb1
19:          0        Phys-irq  ohci_hcd:usb2
20:          0        Phys-irq  ohci_hcd:usb3
21:          2        Phys-irq  ehci_hcd:usb4
22:     143874        Phys-irq  libata, peth1
256:     229456     Dynamic-irq  timer0
257:          0     Dynamic-irq  resched0
258:          0     Dynamic-irq  callfunc0
259:       3786     Dynamic-irq  xenbus
260:          0     Dynamic-irq  console
261:        321     Dynamic-irq  pciback
262:       1273     Dynamic-irq  blkif-backend
263:         12     Dynamic-irq  blkif-backend
264:      43007     Dynamic-irq  vif1.0
265:      48200     Dynamic-irq  vif1.1
266:       1442     Dynamic-irq  blkif-backend
267:         12     Dynamic-irq  blkif-backend
268:         23     Dynamic-irq  blkif-backend
269:        164     Dynamic-irq  vif2.0
270:       2748     Dynamic-irq  blkif-backend
271:         12     Dynamic-irq  blkif-backend
272:      10822     Dynamic-irq  blkif-backend
273:      36270     Dynamic-irq  vif3.0
NMI:          0
LOC:          0
ERR:          0
MIS:          0


In Domu I have:

Hades:/# lspci
00:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. 
RTL-8139/8139C/8139C+ (rev 10)

Hades:/# cat /proc/interrupts
          CPU0
16:      24944        Phys-irq  eth2_rename
256:      81755     Dynamic-irq  timer0
257:          0     Dynamic-irq  resched0
258:          0     Dynamic-irq  callfunc0
259:        153     Dynamic-irq  xenbus
260:        738     Dynamic-irq  xencons
261:       2138     Dynamic-irq  blkif
262:         12     Dynamic-irq  blkif
263:      96537     Dynamic-irq  eth0
264:      79956     Dynamic-irq  eth1
NMI:          0
LOC:          0
ERR:          0
MIS:          0

Any hint?

TIA

Leandro

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