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Old 03-15-2004, 11:50 AM   #1
Registered: Jul 2003
Location: Ontario, Canada
Distribution: Fedora Core 1 - 5
Posts: 99

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spurious 8529A interupt 7???????????

What does this mean?

also i have a

Asus A7N8X-deluxe (nforce2) chipset
Nvidia Geforce FX5600
1 gig of DDR400 Ram
Barton 2500+
running RH8.0

and I get the following during boot

PCI: PCI BIOS revision 2.10 entry at 0xfb4b0, last bus=3
PCI: Using configuration type 1
PCI: Probing PCI hardware
Unknown bridge resource 1: assuming transparent
Unknown bridge resource 2: assuming transparent
Unknown bridge resource 2: assuming transparent
Unknown bridge resource 0: assuming transparent
PCI: Using IRQ router default [10de/01e0] at 00:00.0
isapnp: Scanning for PnP cards...
isapnp: No Plug & Play device found
speakup: initialized device: /dev/synth, node (MAJOR 10, MINOR 25)
Linux NET4.0 for Linux 2.4
Based upon Swansea University Computer Society NET3.039
Initializing RT netlink socket
apm: BIOS version 1.2 Flags 0x07 (Driver version 1.16)
Starting kswapd
allocated 64 pages and 64 bhs reserved for the highmem bounces
VFS: Diskquotas version dquot_6.5.0 initialized
Detected PS/2 Mouse Port.
pty: 2048 Unix98 ptys configured
Serial driver version 5.05c (2001-07-08) with MANY_PORTS MULTIPORT SHARE_IRQ SERIAL_PCI ISAPNP enabled
Real Time Clock Driver v1.10e
block: 1024 slots per queue, batch=256
Uniform Multi-Platform E-IDE driver Revision: 6.31
ide: Assuming 33MHz system bus speed for PIO modes; override with idebus=xx
PCI_IDE: unknown IDE controller on PCI bus 00 device 48, VID=10de, DID=0065
PCI_IDE: chipset revision 162
PCI_IDE: not 100% native mode: will probe irqs later
ide0: BM-DMA at 0xf000-0xf007, BIOS settings: hda:DMA, hdb:DMA
ide1: BM-DMA at 0xf008-0xf00f, BIOS settings: hdc:DMA, hdd:DMA
hda: Maxtor 5T020H2, ATA DISK drive
hdb: WDC WD400JB-00ENA0, ATA DISK drive
hdc: Pioneer DVD-ROM ATAPIModel DVD-115 0122, ATAPI CD/DVD-ROM drive
ide0 at 0x1f0-0x1f7,0x3f6 on irq 14
ide1 at 0x170-0x177,0x376 on irq 15
hda: 40021632 sectors (20491 MB) w/2048KiB Cache, CHS=2491/255/63
hdb: 78165360 sectors (40021 MB) w/8192KiB Cache, CHS=4865/255/63
ide-floppy driver 0.99.newide
Partition check:
hda: hda1
hdb: hdb1 hdb2 hdb3
Floppy drive(s): fd0 is 1.44M
FDC 0 is a post-1991 82077
NET4: Frame Diverter 0.46
RAMDISK driver initialized: 16 RAM disks of 4096K size 1024 blocksize
ide-floppy driver 0.99.newide
md: md driver 0.90.0 MAX_MD_DEVS=256, MD_SB_DISKS=27
md: Autodetecting RAID arrays.
md: autorun ...
md: ... autorun DONE.
NET4: Linux TCP/IP 1.0 for NET4.0
IP Protocols: ICMP, UDP, TCP, IGMP
IP: routing cache hash table of 8192 buckets, 64Kbytes
TCP: Hash tables configured (established 262144 bind 65536)
Linux IP multicast router 0.06 plus PIM-SM
NET4: Unix domain sockets 1.0/SMP for Linux NET4.0.
RAMDISK: Compressed image found at block 0
Freeing initrd memory: 129k freed
VFS: Mounted root (ext2 filesystem).
Journalled Block Device driver loaded
EXT3-fs: INFO: recovery required on readonly filesystem.
EXT3-fs: write access will be enabled during recovery.
spurious 8259A interrupt: IRQ7.


what is this unknown bridge resource and the ide bus speed defaulting to pio 33mhz, and it saying that unkown IDE controller. and Lastly the spurious 8259A interupt IRQ7 ???

Do I need to build support for the chipset into the kernel?



Last edited by d4harvey; 03-15-2004 at 11:51 AM.
Old 03-15-2004, 04:09 PM   #2
LQ Guru
Registered: Feb 2003
Location: Blue Ridge Mountain
Distribution: Linux Mint 17, Debian 8
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"Lastly the spurious 8259A interupt IRQ7 ???"

This is a harmless bug in the kernel. It disappears in later versions of the kernel.

"what is this unknown bridge resource and the ide bus speed defaulting to pio 33mhz, and it saying that unkown IDE controller"

Your kernel does not have support for your IDE chipset compiled into the kernel. Therefore the kernel is using generic IDE support and using the safest possible options on the IDE chipset. This appears to be working OK. If you compiled support for your IDE chipset into the kernel then your disk accesses would probably speed up.

I recommend that you download kernel 2.4.25 from and compile it to get the latest support for your IDE chipset. 2.4.25 should also get rid of the 8259 bug which, in itself, is not worth doing a kernel compile for.

Be prepared. Create a LifeBoat CD.

Steve Stites
Old 03-15-2004, 08:30 PM   #3
Registered: Jul 2003
Location: Ontario, Canada
Distribution: Fedora Core 1 - 5
Posts: 99

Original Poster
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I am using this system for access to a specific program. The support for this program exists only for RH7.3 but it is compatible up to RH8.0 with kernel 2.4.20. Now I have downloaded and run the NVIDIA nforce2 file from the nvidia website and attempted to compile the kernel in order to include the IDE drivers, however I am now getting the idea that obviously they are not installed or they aren't part of this file. This would explain the slow performance compared to the fedora core1 that I had working last week.

thanks for the reply...nice to now that I don't have a resource conflict


Old 03-24-2004, 07:28 PM   #4
Registered: Apr 2003
Location: Greenwood Mississippi
Distribution: Debian, LMDE, n some untus
Posts: 215

Rep: Reputation: 30
is it really just a harmless bug? got it in 2.6.4 when xircom parent inserted (configured but not in use) along with 3com vortex boomerang in cannot be restarted without a reboot

heard is related to parallel printer port stuff but i dunno. I just want it gone! any help would help


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