Re: irq 17: nobody cared (try booting with the "irqpoll" option)

[Gunnar Zarncke <gunnar@zarncke.de>]

Hi,

  I know it's a time since this question was posted and treated the last 
time, but I have quite the same problem, only its IRQ #18 and some other 
pci devices, but it's also a dom-u ("asterisk") with some devices moved 
there 2xISDN and 1 soundcard. The problem halts the whole system (also 
the dom-0 ("powerless")), hard reboot is needed. This happens some hours 
after the dom-u (asterisk) is started. I'm right now trying the 
noirqdebug workaround.

  I think this occors since I move the soundcard into the asterisk 
dom-u. I'd really be happy to keep it in the dom-0, but I don't see a 
way to let the dom-u access it. I couldn't find a virtual sound card for 
xen.

  I would be grateful for any help.

Gunnar Zarncke

Debug data:
powerless:~# uname -a
Linux powerless 2.6.18-4-xen-686 #1 SMP Thu May 10 03:24:35 UTC 2007 
i686 GNU/Li

powerless:~# cat /proc/interrupts
           CPU0             
  1:        397        Phys-irq  i8042
  7:          0        Phys-irq  parport0
  8:          1        Phys-irq  rtc
  9:          0        Phys-irq  acpi
 14:     129799        Phys-irq  ide0
 18:        137        Phys-irq  ohci_hcd:usb1
 19:      36296        Phys-irq  ohci_hcd:usb3, ohci_hcd:usb5, eth1
 20:      39757        Phys-irq  ehci_hcd:usb6, eth2
 21:        229        Phys-irq  libata
 22:          0        Phys-irq  ohci_hcd:usb2, ohci_hcd:usb4
256:    2114450     Dynamic-irq  timer0
257:          0     Dynamic-irq  resched0
258:          0     Dynamic-irq  callfunc0
259:       4449     Dynamic-irq  xenbus
260:        205     Dynamic-irq  blkif-backend
261:       7596     Dynamic-irq  blkif-backend
262:         30     Dynamic-irq  blkif-backend
263:      22089     Dynamic-irq  blkif-backend
264:      12909     Dynamic-irq  vif2.0
265:      12000     Dynamic-irq  vif2.1
266:          1     Dynamic-irq  vif2.2
267:        423     Dynamic-irq  pciback
268:        698     Dynamic-irq  blkif-backend
269:         21     Dynamic-irq  blkif-backend
270:         53     Dynamic-irq  vif3.0
NMI:          0
LOC:          0
ERR:          0
MIS:          0

asterisk:~# cat /proc/interrupts
           CPU0             
 16:         21        Phys-irq  zaphfc
 17:          1        Phys-irq  zaphfc
 18:         93        Phys-irq  HDA Intel
256:       1779     Dynamic-irq  timer0
257:          0     Dynamic-irq  resched0
258:          0     Dynamic-irq  callfunc0
259:        463     Dynamic-irq  xenbus
260:        114     Dynamic-irq  xencons
261:       1276     Dynamic-irq  blkif
262:         20     Dynamic-irq  blkif
263:         98     Dynamic-irq  eth0
NMI:          0
LOC:          0
ERR:          0
MIS:          0


from dmesg:
pciback: vpci: 0000:04:05.0: assign to virtual slot 0
pciback: vpci: 0000:04:06.0: assign to virtual slot 1
pciback: vpci: 0000:00:14.2: assign to virtual slot 2
[...]
pciback 0000:00:14.2: Driver tried to write to a read-only configuration 
space field at offset 0x54, size 2. This may be harmless, but if you 
have problems with your device:
1) see permissive attribute in sysfs
2) report problems to the xen-devel mailing list along with details of 
your device obtained from lspci.
PCI: Enabling device 0000:00:14.2 (0000 -> 0002)
ACPI: PCI Interrupt 0000:00:14.2[A] -> GSI 16 (level, low) -> IRQ 18
pciback 0000:04:05.0: Driver tried to write to a read-only configuration 
space field at offset 0x44, size 2. This may be harmless, but if you 
have problems with your device:
1) see permissive attribute in sysfs
2) report problems to the xen-devel mailing list along with details of 
your device obtained from lspci.
PCI: Enabling device 0000:04:05.0 (0000 -> 0003)
ACPI: PCI Interrupt 0000:04:05.0[A] -> GSI 20 (level, low) -> IRQ 17
pciback 0000:04:06.0: Driver tried to write to a read-only configuration 
space field at offset 0x44, size 2. This may be harmless, but if you 
have problems with your device:
1) see permissive attribute in sysfs
2) report problems to the xen-devel mailing list along with details of 
your device obtained from lspci.
PCI: Enabling device 0000:04:06.0 (0000 -> 0003)
ACPI: PCI Interrupt 0000:04:06.0[A] -> GSI 21 (level, low) -> IRQ 16


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