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Date: Thu, 6 Dec 2001 18:51:44 +0300
From: "Alex A. Zaretskii" <d00mer@d00mer.msk.ru>
To: FreeBSD-gnats-submit@freebsd.org
Subject: kern/32556: system crashes when unloading sound modules 
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>Number:         32556
>Category:       kern
>Synopsis:       system crashes when unloading sound modules
>Confidential:   no
>Severity:       serious
>Priority:       high
>Responsible:    freebsd-bugs
>State:          open
>Quarter:        
>Keywords:       
>Date-Required:
>Class:          sw-bug
>Submitter-Id:   current-users
>Arrival-Date:   Thu Dec 06 08:00:03 PST 2001
>Closed-Date:
>Last-Modified:
>Originator:     Alex Zaretskii
>Release:        FreeBSD 4.4-STABLE i386
>Organization:
>Environment:
System: FreeBSD fileserver.local 4.4-STABLE FreeBSD 4.4-STABLE #0: Mon Dec 3
18:11:54 MSK 2001 d00mer@fileserver.local:/usr/src/sys/compile/FILESERVER
i386
dmesg output :
Copyright (c) 1992-2001 The FreeBSD Project.
Copyright (c) 1979, 1980, 1983, 1986, 1988, 1989, 1991, 1992, 1993, 1994
        The Regents of the University of California. All rights reserved.
FreeBSD 4.4-STABLE #0: Mon Dec  3 18:11:54 MSK 2001
    d00mer@fileserver.local:/usr/src/sys/compile/FILESERVER
Timecounter "i8254"  frequency 1193182 Hz
Timecounter "TSC"  frequency 851937154 Hz
CPU: Pentium III/Pentium III Xeon/Celeron (851.94-MHz 686-class CPU)
  Origin = "GenuineIntel"  Id = 0x686  Stepping = 6

Features=0x383f9ff<FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,MMX,FXSR,SSE
avail memory = 257126400 (251100K bytes)
Preloaded elf kernel "kernel" at 0xc0331000.
Preloaded userconfig_script "/boot/kernel.conf" at 0xc033109c.
VESA: v3.0, 1024k memory, flags:0x1, mode table:0xc02d1fe2 (1000022)
VESA: Intel(R) 8xx Chipset Video BIOS
Pentium Pro MTRR support enabled
md0: Malloc disk
Using $PIR table, 4 entries at 0xc00fde60
npx0: <math processor> on motherboard
npx0: INT 16 interface
pcib0: <Intel 82810 (i810 GMCH) Host To Hub bridge> on motherboard
pci0: <PCI bus> on pcib0
pci0: <Intel 82810 (i810 GMCH) SVGA controller> at 1.0 irq 12
pcib1: <Intel 82801AA (ICH) Hub to PCI bridge> at device 30.0 on pci0
pci1: <PCI bus> on pcib1
rl0: <RealTek 8139 10/100BaseTX> port 0xc000-0xc0ff mem
0xd4000000-0xd40000ff irq 11 at device 1.0 o
n pci1
rl0: Ethernet address: 00:05:1c:05:d3:23
miibus0: <MII bus> on rl0
rlphy0: <RealTek internal media interface> on miibus0
rlphy0:  10baseT, 10baseT-FDX, 100baseTX, 100baseTX-FDX, auto
isab0: <Intel 82801AA (ICH) PCI to LPC bridge> at device 31.0 on pci0
isa0: <ISA bus> on isab0
atapci0: <Intel ICH ATA66 controller> port 0xf000-0xf00f at device 31.1 on
pci0
ata0: at 0x1f0 irq 14 on atapci0
ata1: at 0x170 irq 15 on atapci0
pci0: <unknown card> (vendor=0x8086, dev=0x2413) at 31.3 irq 0
pcm0: <Intel 82801AA (ICH)> port 0xd800-0xd83f,0xd400-0xd4ff irq 11 at
device 31.5 on pci0
orm0: <Option ROM> at iomem 0xc0000-0xc9fff on isa0
fdc0: <NEC 72065B or clone> at port 0x3f0-0x3f5,0x3f7 irq 6 drq 2 on isa0
fdc0: FIFO enabled, 8 bytes threshold
fd0: <1440-KB 3.5" drive> on fdc0 drive 0
atkbdc0: <Keyboard controller (i8042)> at port 0x60,0x64 on isa0
atkbd0: <AT Keyboard> flags 0x1 irq 1 on atkbdc0
kbd0 at atkbd0
vga0: <Generic ISA VGA> at port 0x3c0-0x3df iomem 0xa0000-0xbffff on isa0
sc0: <System console> at flags 0x180 on isa0
sc0: VGA <16 virtual consoles, flags=0x380>
sio0 at port 0x3f8-0x3ff irq 4 flags 0x10 on isa0
sio0: type 16550A
sio1 at port 0x2f8-0x2ff irq 3 on isa0
sio1: type 16550A
ppc0: <Parallel port> at port 0x378-0x37f irq 7 on isa0
ppc0: Generic chipset (NIBBLE-only) in COMPATIBLE mode
lpt0: <Printer> on ppbus0
lpt0: Interrupt-driven port
ppi0: <Parallel I/O> on ppbus0
ad0: 16446MB <ST317221A> [33416/16/63] at ata0-master UDMA66
ad1: 38166MB <ST340823A> [77545/16/63] at ata0-slave UDMA66
ad2: 39093MB <FUJITSU MPG3409AT E> [79428/16/63] at ata1-master UDMA66
ad3: 29312MB <Maxtor 33073H3> [59556/16/63] at ata1-slave UDMA66
Mounting root from ufs:/dev/ad0s3a
agp0: <Intel 82810 (i810 GMCH) SVGA controller> mem
0xd4100000-0xd417ffff,0xd0000000-0xd3ffffff irq
12 at device 1.0 on pci0
 
>Description:
System crashes when loading and then unloading several sound modules (works
with snd_vibes.ko, and snd_ich.ko)
 
 
>How-To-Repeat:
kldload snd_ich
kldunload snd_ich
 
 
>Fix:
none
>Release-Note:
>Audit-Trail:
>Unformatted:
  

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