On Apr 9, 2010, at 1:47 AM, Mark Hurenkamp wrote:
Hi,
With a fairly recent (~march 29th) xen/next kernel and a recent
xen-4.0.rc9-pre build, i still get occasional 'nobody cared'
messages on a
IRQ which is shared between dom0 radeon driver, and domU ivtv
driver.
Meanwhile i moved to an even more recent xen/stable-2.6.32 (.11)
kernel,
and a xen-4.0.0 release, the problem still shows.
Is there something i can do about this?
Yes,
Please e-mail your full serial log output, your cat /proc/interrupts,
and 'lspci -vvv' output. This is to say, for both Dom0 and DomU.
I've attached the requested information, although it was collected
after a fresh boot
(thus the problem has not occurred yet), with the same xen & kernel
as were in use
when the problem last exposed itself.
Note that during boot, there are a lot of warnings about slowpath
and schedule_bug,
most of these occur when starting xen-domains.
The bug just triggered again, since boot, the following extra info was
printed on the serial
console:
md: md12: resync done.
md: resync of RAID array md10
md: minimum _guaranteed_ speed: 1000 KB/sec/disk.
md: using maximum available idle IO bandwidth (but not more than
200000 KB/sec) for resync.
md: using 128k window, over a total of 62508800 blocks.
RAID1 conf printout:
--- wd:2 rd:2
disk 0, wo:0, o:1, dev:sda12
disk 1, wo:0, o:1, dev:sdb12
irq 16: nobody cared (try booting with the "irqpoll" option)
Pid: 0, comm: swapper Tainted: G W 2.6.32.11mh18 #10
Call Trace:
<IRQ> [<ffffffff810bcdfd>] __report_bad_irq+0x3d/0x8c
[<ffffffff810bcf64>] note_interrupt+0x118/0x17c
[<ffffffff810bd721>] handle_level_irq+0x8e/0xda
[<ffffffff812c2349>] xen_evtchn_do_upcall+0x123/0x1ec
[<ffffffff8101406e>] xen_do_hypervisor_callback+0x1e/0x30
<EOI> [<ffffffff810093aa>] ? hypercall_page+0x3aa/0x100b
[<ffffffff810093aa>] ? hypercall_page+0x3aa/0x100b
[<ffffffff8100eb7c>] ? xen_safe_halt+0x10/0x1a
[<ffffffff8100c141>] ? xen_idle+0x51/0x5c
[<ffffffff81011d4c>] ? cpu_idle+0xb0/0x107
[<ffffffff8146975b>] ? rest_init+0x7f/0x81
[<ffffffff8198ad71>] ? start_kernel+0x423/0x42e
[<ffffffff8198a2c1>] ? x86_64_start_reservations+0xac/0xb0
[<ffffffff8198df0d>] ? xen_start_kernel+0x659/0x660
handlers:
[<ffffffffa036649b>] (radeon_driver_irq_handler+0x0/0x141 [radeon])
[<ffffffffa036649b>] (radeon_driver_irq_handler+0x0/0x141 [radeon])
Disabling IRQ #16
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