From: Thomas Hood <jdthoodREMOVETHIS@yahoo.co.uk>
To: linux-kernel@vger.kernel.org
Subject: "serial" does not show up in /proc/interrupts
Date: Mon, 30 Jul 2001 17:12:40 -0400 [thread overview]
Message-ID: <3B65CDC8.7ECE387A@yahoo.co.uk> (raw)
I am looking for the cause of an oops (more info
to come in another message) and I noticed the following
anomaly. I am using a modular serial driver on /dev/ttyS0
and /dev/ttyS1 (actually /dev/tts/0 and /dev/tts/1 under
devfs). See the listing of my /proc/interrupts below.
I am not using /dev/ttyS0 at the moment, so IRQ4 isn't listed
as used. I assume that's normal. But I do have /dev/ttyS1
open; it uses IRQ3. But note that the name of the serial
driver is not printed in the list. Why not?
root@thanatos:~# cat /proc/interrupts
CPU0
0: 65078 XT-PIC timer
1: 1546 XT-PIC keyboard
2: 0 XT-PIC cascade
3: 1979 XT-PIC
5: 3324 XT-PIC CS4231
7: 4 XT-PIC parport0
8: 1 XT-PIC rtc
10: 27 XT-PIC mwave_3780i
11: 5021 XT-PIC usb-uhci, Texas Instruments PCI1250, Texas Instruments PCI1250 (#2)
12: 3268 XT-PIC PS/2 Mouse
14: 8807 XT-PIC ide0
15: 4 XT-PIC ide1
NMI: 0
ERR: 0
Fishy!
--
Thomas Hood
jdthood_AT_yahoo.co.uk
next reply other threads:[~2001-07-30 21:13 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2001-07-30 21:12 Thomas Hood [this message]
2001-07-30 21:29 ` "serial" does not show up in /proc/interrupts Stuart MacDonald
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