linux-kernel - kernel 2.6.19 and RealTek RTL8139 interrupt

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Date:	Tue, 05 Dec 2006 21:36:37 +0300
From:	Oleg Mikheev <mihel@...box.ru>
To:	linux-kernel@...r.kernel.org
Subject: kernel 2.6.19 and RealTek RTL8139 interrupt

Hi guys,

I'm using FC5 with vanilla kernels.
Everything worked great until 2.6.19 was released.
Not each time I'm trying to up my eth0 kernel produces this:


eth0: link up, 100Mbps, full-duplex, lpa 0x45E1
irq 18: nobody cared (try booting with the "irqpoll" option)
  [<c01391aa>] __report_bad_irq+0x36/0x7d
  [<c0139379>] note_interrupt+0x188/0x1c3
  [<c0138a19>] handle_IRQ_event+0x1a/0x3f
  [<c01396ca>] handle_fasteoi_irq+0x61/0x73
  [<c0104e34>] do_IRQ+0x6b/0x83
  [<c0120c76>] sys_rt_sigprocmask+0x80/0x93
  [<c01034a2>] common_interrupt+0x1a/0x20
  =======================
handlers:
[<c0257416>] (rtl8139_interrupt+0x0/0x3aa)
Disabling IRQ #18


I'm posting it here b/c I don't think it's a normal behavior.
Here is the diff of dmesg output between 2.6.18.3 and 2.6.19:


140,142c141,143
< 8139too Fast Ethernet driver 0.9.27
< ACPI: PCI Interrupt 0000:01:06.0[A] -> GSI 20 (level, low) -> IRQ 20
< eth0: RealTek RTL8139 at 0xf8806c00, 00:40:45:28:2c:ae, IRQ 20
---
 > 8139too Fast Ethernet driver 0.9.28
 > ACPI: PCI Interrupt 0000:01:06.0[A] -> GSI 20 (level, low) -> IRQ 18
 > eth0: RealTek RTL8139 at 0xf8806c00, 00:40:45:28:2c:ae, IRQ 18
147c148
< ACPI: PCI Interrupt 0000:00:1f.1[A] -> GSI 18 (level, low) -> IRQ 18
---
 > ACPI: PCI Interrupt 0000:00:1f.1[A] -> GSI 18 (level, low) -> IRQ 19
197,198c198,200
< TCP bic registered
< Initializing IPsec netlink socket
---
 > input: AT Translated Set 2 keyboard as /class/input/input0
 > TCP cubic registered
 > Initializing XFRM netlink socket
294,306c305,310
< Non-volatile memory driver v1.2
< usb 4-2: new full speed USB device using uhci_hcd and address 2
< PM: Adding info for usb:4-2
< PM: Adding info for No Bus:usbdev4.2_ep00
< usb 4-2: configuration #1 chosen from 1 choice
< PM: Adding info for usb:4-2:1.0
< PM: Adding info for No Bus:usbdev4.2_ep81
< PM: Adding info for No Bus:usbdev4.2_ep02
< PM: Adding info for No Bus:usbdev4.2_ep82
< PM: Adding info for usb:4-2:1.1
< PM: Adding info for No Bus:usbdev4.2_ep03
< PM: Adding info for No Bus:usbdev4.2_ep83
< Bluetooth: Core ver 2.10
---
 > PM: Adding info for No Bus:usbdev3.2_ep02
 > PM: Adding info for No Bus:usbdev3.2_ep82
 > PM: Adding info for usb:3-2:1.1
 > PM: Adding info for No Bus:usbdev3.2_ep03
 > PM: Adding info for No Bus:usbdev3.2_ep83
 > Bluetooth: Core ver 2.11
312,315c316,319
< PM: Removing info for No Bus:usbdev4.2_ep03
< PM: Removing info for No Bus:usbdev4.2_ep83
< PM: Adding info for No Bus:usbdev4.2_ep03
< PM: Adding info for No Bus:usbdev4.2_ep83
---
 > PM: Removing info for No Bus:usbdev3.2_ep03
 > PM: Removing info for No Bus:usbdev3.2_ep83
 > PM: Adding info for No Bus:usbdev3.2_ep03
 > PM: Adding info for No Bus:usbdev3.2_ep83
317,320c321
< usbcore: registered new driver hci_usb
< PM: Adding info for ieee1394:00012f650000d9b3
< ieee1394: Host added: ID:BUS[0-00:1023]  GUID[00012f650000d9b3]
< PM: Adding info for ieee1394:00012f650000d9b3-0
---
 > usbcore: registered new interface driver hci_usb
322c323
< device-mapper: ioctl: 4.7.0-ioctl (2006-06-24) initialised: 
dm-devel@...hat.com
---
 > device-mapper: ioctl: 4.10.0-ioctl (2006-09-14) initialised: 
dm-devel@...hat.com
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