From ah@alvman.RoBIN.de  Fri Nov 15 02:02:41 1996
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Date: Fri, 15 Nov 1996 11:03:11 +0100 (MET)
From: Andreas Haakh <ah@alvman.RoBIN.de>
Reply-To: ah@alvman.RoBIN.de
To: FreeBSD-gnats-submit@freebsd.org, ah@alvman.RoBIN.de
Subject: stray irq
X-Send-Pr-Version: 3.2

>Number:         2017
>Category:       kern
>Synopsis:       stray irq 15
>Confidential:   no
>Severity:       non-critical
>Priority:       low
>Responsible:    freebsd-bugs
>State:          closed
>Quarter:
>Keywords:
>Date-Required:
>Class:          sw-bug
>Submitter-Id:   current-users
>Arrival-Date:   Fri Nov 15 02:10:08 PST 1996
>Closed-Date:    Sat Nov 16 16:52:26 MET 1996
>Last-Modified:  Sat Nov 16 08:00:03 PST 1996
>Originator:     Andreas Haakh
>Release:        FreeBSD 2.1.5-RELEASE i386
>Organization:
--
Andreas Haakh  *  Steinackerstr. 6  *  64285 Darmstadt  *  ah@alvman.Robin.de
>Environment:
see following syslog

Nov 15 09:31:34 barney /kernel: FreeBSD 2.1.5-RELEASE #0: Thu Nov  7 16:36:35 MET 1996
Nov 15 09:31:34 barney /kernel:     root@alvman.RoBIN.de:/usr/src/sys/compile/BARNEY
Nov 15 09:31:35 barney /kernel: CPU: i386DX (386-class CPU)
Nov 15 09:31:35 barney /kernel: real memory  = 9437184 (9216K bytes)
Nov 15 09:31:35 barney /kernel: avail memory = 7700480 (7520K bytes)
Nov 15 09:31:35 barney /kernel: Probing for devices on the ISA bus:
Nov 15 09:31:35 barney /kernel: sc0 at 0x60-0x6f irq 1 on motherboard
Nov 15 09:31:35 barney /kernel: sc0: VGA color <6 virtual consoles, flags=0x0>
Nov 15 09:31:35 barney /kernel: ed0 at 0x300-0x31f irq 10 maddr 0xcc000 msize 16384 on isa
Nov 15 09:31:35 barney /kernel: ed0: address 00:00:c0:f2:08:6f, type SMC8216/SMC8216C (16 bit) 
Nov 15 09:31:35 barney /kernel: sio0 at 0x3f8-0x3ff irq 4 on isa
Nov 15 09:31:35 barney /kernel: sio0: type 16450
Nov 15 09:31:35 barney /kernel: sio1 not found at 0x2f8
Nov 15 09:31:35 barney /kernel: lpt0 at 0x3bc-0x3c3 irq 7 on isa
Nov 15 09:31:35 barney /kernel: lpt0: Interrupt-driven port
Nov 15 09:31:36 barney /kernel: lp0: TCP/IP capable interface
Nov 15 09:31:36 barney /kernel: psm0 at 0x60-0x63 irq 12 on motherboard
Nov 15 09:31:36 barney /kernel: fdc0 at 0x3f0-0x3f7 irq 6 drq 2 on isa
Nov 15 09:31:36 barney /kernel: fdc0: NEC 765
Nov 15 09:31:36 barney /kernel: fd0: 1.44MB 3.5in
Nov 15 09:31:36 barney /kernel: fd1: 1.2MB 5.25in
Nov 15 09:31:36 barney /kernel: wdc0 at 0x1f0-0x1f7 irq 14 on isa
Nov 15 09:31:36 barney /kernel: wdc0: unit 0 (wd0): <Conner Peripherals 84MB - CP3181>
Nov 15 09:31:36 barney /kernel: wd0: 80MB (164736 sectors), 832 cyls, 6 heads, 33 S/T, 512 B/S
Nov 15 09:31:36 barney /kernel: aha0 at 0x330-0x333 irq 11 drq 5 on isa
Nov 15 09:31:36 barney /kernel: aha0 waiting for scsi devices to settle
Nov 15 09:31:36 barney /kernel: (aha0:0:0): "QUANTUM LPS540S 5900" type 0 fixed SCSI 2
Nov 15 09:31:37 barney /kernel: sd0(aha0:0:0): Direct-Access 516MB (1057616 512 byte sectors)
Nov 15 09:31:37 barney /kernel: tel0 at 0xd80 irq 9 on isa
Nov 15 09:31:37 barney /kernel: tel0: card type Teles S0/16.3
Nov 15 09:31:37 barney /kernel: npx0 at 0xf0-0xff irq 13 on motherboard
Nov 15 09:31:37 barney /kernel: IP firewall initialized, unlimited logging
Nov 15 09:31:34 barney named[75]: starting.  named LOCAL-960717.011537 Wed Jul 17 01:15:37  1996 	jkh@whisker.cdrom.com:/usr/src/usr.sbin/named
Nov 15 09:31:39 barney named[76]: Ready to answer queries. 
Nov 15 09:31:41 barney timed[80]: slave to alvman.RoBIN.de
Nov 15 09:32:14 barney timed[80]: date changed by alvman.RoBIN.de from Fri Nov 15 09:31:41 1996 
Nov 15 09:32:28 barney lpd[109]: restarted
Nov 15 09:32:51 barney bisdnd[152]: SYS daemon started (pid = 152)
Nov 15 09:32:53 barney /kernel: Assigned: TEI = 0xcf = 103
Nov 15 09:32:54 barney bisdnd[152]: SYS rate=dynamically (initially 90 secs from rate file)
Nov 15 10:09:10 barney bisdnd[152]: SYS rate=dynamically (initially 90 secs from rate file)
Nov 15 10:12:45 barney login: login on ttyv1 as ah
Nov 15 10:13:24 barney bisdnd[152]: SYS rate=dynamically (initially 90 secs from rate file)
Nov 15 10:15:01 barney /kernel: stray irq 15
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 15 10:25:06 barney bisdnd[152]: SYS rate=dynamically (initially 90 secs from rate file)
Nov 15 10:51:12 barney login: login on ttyv2 as ah
>Description:

	Since I installed bisdn-0.97 I receive at irregular intervals 
	stray irq 15. 
	As You can see there is no device assigned to this irq-channel.

>How-To-Repeat:

	I Don't know.

>Fix:
	
	Unknown

>Release-Note:
>Audit-Trail:
State-Changed-From-To: open->closed 
State-Changed-By: joerg 
State-Changed-When: Sat Nov 16 16:52:26 MET 1996 
State-Changed-Why:  
Stray IRQs are indications of hardware IRQ glitches. 
Probably somebody should write an explanation for the FAQ. 

From: J Wunsch <j@uriah.heep.sax.de>
To: ah@alvman.RoBIN.de
Cc: FreeBSD-gnats-submit@FreeBSD.org
Subject: Re: kern/2017: stray irq
Date: Sat, 16 Nov 1996 16:46:00 +0100 (MET)

 As Andreas Haakh wrote:
 
 > Nov 15 10:15:01 barney /kernel: stray irq 15
 > ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
 Stray IRQs are a known phenomenon.  Obviously (if you think about it
 :), there's nothing the kernel could do about it.  Unless you have
 misconfigured your kernel so there's no driver assigned to a device
 that actually issues IRQs, they are a sign of flakey hardware, often
 caused by glitches on an IRQ line.
 
 > 	As You can see there is no device assigned to this irq-channel.
 
 Of course. :)  They weren't `stray' by definition otherwise (but
 instead, a driver like wdc1 that has no concern with them would get
 the IRQs).
 
 > >Fix:
 > 	
 > 	Unknown
 
 Fix your hardware.  Or live with the warnings.  As long as everything
 else continues to work, they are nothing to worry much about.
 
 -- 
 cheers, J"org
 
 joerg_wunsch@uriah.heep.sax.de -- http://www.sax.de/~joerg/ -- NIC: JW11-RIPE
 Never trust an operating system you don't have sources for. ;-)
>Unformatted:
