Thomas Hellström wrote:
> I guess you got the wrong commit, and the correct one should be the one
> where Dave adds vblank interrupts. It should be close to the one you
> listed.
I thought I double-checked that it was the right commit, but will check
again.
> If the network sits on the same IRQ line, it will be disabled as well.
It appears to be on a different IRQ:
~$ cat /proc/interrupts
CPU0
0: 202574 XT-PIC timer
1: 2649 XT-PIC i8042
2: 0 XT-PIC cascade
8: 0 XT-PIC rtc
9: 0 XT-PIC acpi
10: 1059 XT-PIC yenta, Intel 82801CA-ICH3 Modem, Intel
82801CA-ICH3
11: 40776 XT-PIC uhci_hcd:usb1, uhci_hcd:usb2, eth0
12: 100433 XT-PIC i8042
14: 63563 XT-PIC ide0
15: 6773 XT-PIC ide1
NMI: 0
ERR: 0
(This is without i915 loaded though.)
> If you check your kernel logs, you will probably have
> messages about disabled IRQs.
Correct. Here's an example:
Jul 7 16:43:39 kelev kernel: irq 11: nobody cared (try booting with the
"irqpoll" option)
Jul 7 16:43:39 kelev kernel: [<c0138b74>] __report_bad_irq+0x24/0x90
Jul 7 16:43:39 kelev kernel: [<c0138c82>] note_interrupt+0x72/0xc0
Jul 7 16:43:39 kelev kernel: [<c013862e>] __do_IRQ+0xae/0xc0
Jul 7 16:43:39 kelev kernel: [<c0104a69>] do_IRQ+0x19/0x30
Jul 7 16:43:39 kelev kernel: [<c01030c2>] common_interrupt+0x1a/0x20
Jul 7 16:43:39 kelev kernel: [<c011c4fe>] __do_softirq+0x2e/0xa0
Jul 7 16:43:39 kelev kernel: [<c011c597>] do_softirq+0x27/0x30
Jul 7 16:43:39 kelev kernel: [<c0104a6e>] do_IRQ+0x1e/0x30
Jul 7 16:43:39 kelev kernel: [<c01030c2>] common_interrupt+0x1a/0x20
Jul 7 16:43:39 kelev kernel: [<c0102ef5>] syscall_call+0x7/0xb
Jul 7 16:43:39 kelev kernel: handlers:
Jul 7 16:43:39 kelev kernel: [<e01270c0>] (usb_hcd_irq+0x0/0x60 [usbcore])
Jul 7 16:43:39 kelev kernel: [<e01270c0>] (usb_hcd_irq+0x0/0x60 [usbcore])
Jul 7 16:43:39 kelev kernel: [<e0044160>] (rtl8139_interrupt+0x0/0x1d0
[8139too]
)
Jul 7 16:43:39 kelev kernel: Disabling IRQ #11
Jul 7 16:44:03 kelev kernel: NETDEV WATCHDOG: eth0: transmit timed out
Jul 7 16:44:03 kelev kernel: eth0: Transmit timeout, status 0c 0005
c07f media 9
0.
Jul 7 16:44:03 kelev kernel: eth0: Tx queue start entry 48 dirty entry 44.
Jul 7 16:44:03 kelev kernel: eth0: Tx descriptor 0 is 0008a062. (queue
head)
Jul 7 16:44:03 kelev kernel: eth0: Tx descriptor 1 is 0008a062.
Jul 7 16:44:03 kelev kernel: eth0: Tx descriptor 2 is 0008a062.
Jul 7 16:44:03 kelev kernel: eth0: Tx descriptor 3 is 0008a062.
Jul 7 16:44:03 kelev kernel: eth0: link up, 100Mbps, full-duplex, lpa
0x45E1
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