I strongly suggest avoiding shared IRQs between
dom0 and domUs.
As you can see, your IRQ 17 is shared and it is this exact same IRQ
that
appears in your error message.
One easy fix is to move your Ethernet card into
another PCI
slot. I didn’t find how to explicitly define an IRQ number for a given
device,
but I suspect it is within your BIOS config.
Cheers !
De : Julien
Reveillet
[mailto:j.reveillet@xxxxxxxxxxxxxxxxxxxxxx]
Envoyé : 12 décembre 2007 15:29
À : Boudreau Luc
Objet : Re: [Xen-users] Re: HELP DomU (Centos 5) with
dedicated
e1000 (intel) device dropping packets
Hi,
Thanks for your help.
Here are the interrupts used by my DomU (CentOs) with the dedicated
e1000:
CPU0
17:
99997 Phys-irq eth0
18:
0 Phys-irq uhci_hcd:usb1
256: 293664 Dynamic-irq
timer0
257:
0 Dynamic-irq resched0
258:
0 Dynamic-irq callfunc0
259: 558
Dynamic-irq xenbus
260: 834
Dynamic-irq xencons
261: 2666
Dynamic-irq blkif
262:
3 Dynamic-irq blkif
263: 18
Dynamic-irq blkif
264: 219
Dynamic-irq blkif
265: 814
Dynamic-irq blkif
266: 983
Dynamic-irq blkif
267: 39548
Dynamic-irq blkif
NMI: 0
LOC: 0
ERR: 0
MIS: 0
And here are the interrupts in the DomU :
8:
1 Phys-irq rtc
9:
0 Phys-irq acpi
14:
74 Phys-irq ide0
17:
100000 Phys-irq ohci1394
18:
279 Phys-irq ehci_hcd:usb1
19:
569 Phys-irq uhci_hcd:usb2
20:
191699 Phys-irq uhci_hcd:usb3,
peth2
21:
0 Phys-irq uhci_hcd:usb4
22:
29277 Phys-irq libata
256: 1384176 Dynamic-irq timer0
257: 943 Dynamic-irq
resched0
258: 36
Dynamic-irq callfunc0
259: 6834
Dynamic-irq blkif-backend
260: 38
Dynamic-irq blkif-backend
261: 75310
Dynamic-irq vif4.0
262: 8614
Dynamic-irq xenbus
263: 0
Dynamic-irq console
264: 355
Dynamic-irq pciback
265: 1928
Dynamic-irq blkif-backend
266:
4 Dynamic-irq blkif-backend
267: 16
Dynamic-irq blkif-backend
268: 180
Dynamic-irq blkif-backend
269: 535
Dynamic-irq blkif-backend
270: 530
Dynamic-irq blkif-backend
271: 359
Dynamic-irq blkif-backend
NMI: 0
LOC: 0
ERR: 0
MIS: 0
As i see, there is no conflicts in the same virtual machine.
Is there a need that Irqs are différents between DomU(s) and Dom0?
Thanks in advance.
Julien.
PS: Bien le bonjour à vous Canadien.
Boudreau Luc a écrit :
BTW. The syntax to display currently assigned
IRQs is
# cat /proc/interrupts
Hi everyone,
Here is what my Xen Dom0 syslog daemon reports after a freeze of my
CentOs DomU
network interface :
xen kernel: Disabling IRQ #17
Dec 12 16:16:18 xen kernel: [<c013af97>]
__report_bad_irq+0x2b/0x69
Dec 12 16:16:18 xen kernel: [<c013b188>]
note_interrupt+0x1b3/0x1eb
Dec 12 16:16:18 xen kernel: [<c013a7ed>]
handle_IRQ_event+0x49/0x51
Dec 12 16:16:18 xen kernel: [<c013a8a8>] __do_IRQ+0xb3/0xe8
Dec 12 16:16:18 xen kernel: [<c010612c>] do_IRQ+0x43/0x53
Dec 12 16:16:18 xen kernel: [<c020c1cc>]
evtchn_do_upcall+0x64/0x9b
Dec 12 16:16:18 xen kernel: [<c0104a51>]
hypervisor_callback+0x3d/0x48
Dec 12 16:16:18 xen kernel: [<c020bbb1>]
notify_remote_via_irq+0x27/0x5f
Dec 12 16:16:18 xen kernel: [<c021359b>]
blkif_notify_work+0x1b/0x1d
Dec 12 16:16:18 xen kernel: [<c02137b3>] make_response+0xeb/0x12f
Dec 12 16:16:18 xen kernel: [<c021383c>]
end_block_io_op+0x45/0x7e
Dec 12 16:16:18 xen kernel: [<c02137f7>] end_block_io_op+0x0/0x7e
Dec 12 16:16:18 xen kernel: [<c015d715>] bio_endio+0x50/0x55
Dec 12 16:16:18 xen kernel: [<ee1a62da>] dec_pending+0x9b/0xb3
[dm_mod]
Dec 12 16:16:18 xen kernel: [<ee1a63de>] clone_endio+0x7c/0x94
[dm_mod]
Dec 12 16:16:18 xen kernel: [<ee1a6362>] clone_endio+0x0/0x94
[dm_mod]
Dec 12 16:16:18 xen kernel: [<c015d715>] bio_endio+0x50/0x55
Dec 12 16:16:18 xen kernel: [<c01ad07b>]
__end_that_request_first+0x11b/0x422
Dec 12 16:16:18 xen kernel: [<c0123662>] del_timer+0x41/0x47
Dec 12 16:16:18 xen kernel: [<ee0e2055>]
scsi_end_request+0x1a/0xa9
[scsi_mod]
Dec 12 16:16:18 xen kernel: [<c013ebec>] mempool_free+0x5f/0x63
Dec 12 16:16:18 xen kernel: [<ee0e2227>]
scsi_io_completion+0x143/0x2ed [scsi_mod]
Dec 12 16:16:18 xen kernel: [<c020bcf2>] unmask_evtchn+0x26/0xba
Dec 12 16:16:18 xen kernel: [<ee16f3b2>] sd_rw_intr+0x1eb/0x215
[sd_mod]
Dec 12 16:16:18 xen kernel: [<c0289aa0>]
_spin_lock_irqsave+0x8/0x28
Dec 12 16:16:18 xen kernel: [<ee0de3bd>]
scsi_finish_command+0x73/0x77 [scsi_mod]
Dec 12 16:16:18 xen kernel: [<c01af180>]
blk_done_softirq+0x55/0x60
Dec 12 16:16:18 xen kernel: [<c011f41e>] __do_softirq+0x5e/0xc3
Dec 12 16:16:18 xen kernel: [<c011f4bd>] do_softirq+0x3a/0x4a
Dec 12 16:16:18 xen kernel: [<c0106131>] do_IRQ+0x48/0x53
Dec 12 16:16:18 xen kernel: [<c020c1cc>]
evtchn_do_upcall+0x64/0x9b
Dec 12 16:16:18 xen kernel: [<c0104a51>]
hypervisor_callback+0x3d/0x48
Dec 12 16:16:18 xen kernel: [<c0107342>] raw_safe_halt+0x8c/0xaf
Dec 12 16:16:18 xen kernel: [<c0102c5f>] xen_idle+0x22/0x2e
Dec 12 16:16:18 xen kernel: [<c0102d7e>] cpu_idle+0x91/0xab
Dec 12 16:16:18 xen kernel: [<c03236fc>] start_kernel+0x378/0x37f
It's apparently an Irq conflict but i don't know why?
Do someone have an idea?
Thanks.
Julien.
Julien Reveillet a écrit :
Hello everybody,
I've finished with pci export from DomU to Dom0 (Debian Etch) but now i
have a
new problem, and a big one.
My ethernet card is dropping packets but after some time (i can't tell
how)
It can work for a day (not in production so not hard tested) and then
all
packets are dropped.
Look at the ifconfig output :
eth0 Link encap:Ethernet HWaddr XX:XX:XX:XX:XX:XX
inet
addr:192.168.9.52 Bcast:192.168.9.255 Mask:255.255.255.0
inet6 addr:
fe80::213:72ff:fe0f:1c6a/64 Scope:Link
UP BROADCAST RUNNING
MULTICAST MTU:1500 Metric:1
RX packets:10505
errors:0 dropped: 352 overruns:0 frame:0
TX packets:2921 errors:0
dropped:0 overruns:0 carrier:0
collisions:0
txqueuelen:1000
RX bytes:2223312 (2.1
MiB) TX bytes:555445 (542.4 KiB)
Base address:0xcce0
Memory:fe3e0000-fe400000
Today, nothing was done on it but, a few minutes before, i realised
that it was
down.
Dmesg output :
...
Intel(R) PRO/1000 Network Driver - version 7.1.9-k4-NAPI
Copyright (c) 1999-2006 Intel Corporation.
PCI: Enabling device 0000:00:01.0 (0000 -> 0003)
PCI: Setting latency timer of device 0000:00:01.0 to 64
e1000: 0000:00:01.0: e1000_probe: (PCI Express:2.5Gb/s:Width x1)
xx:xx:xx:xx:xx:xx
e1000: eth0: e1000_probe: Intel(R) PRO/1000 Network Connection
e1000: eth0: e1000_watchdog: NIC Link is Up 1000 Mbps Full Duplex
NET: Registered protocol family 10
lo: Disabled Privacy Extensions
IPv6 over IPv4 tunneling driver
NET: Registered protocol family 5
eth0: no IPv6 routers present
The interface is still up.
I saw while googling that it could be an hardware problem but this was
not in a
xen environnement so...
Anybody have seen this before?
Thanks.
Best Regards.
Julien.
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