I have two systems, one running RH 7.1 as base, the other RH 7.1 beta.
Both are x86 SMP. The following Oops is from the RH 7.1 machine
(non-beta) for kernel 2.4.5 (compiled with kgcc, no patches). Please
note that both machines will fail to create a bootable floppy with make
bzdisk; I have tried half a dozen separate floppies from separate boxes.
Both will boot from floppy made through mkbootdisk. Both have scsi
compiled directly in, and are not modules. Both use aic7xxx. The machine
with Oops being reported on is being booted "noapic", since it is the
i840 chipset (the other machine is BX chipset).

The following bootup message excerpt should be accurate, but I had to
type this whole thing in by hand, since the system dies. I went through
a lot of effort to make sure there were no typo's, but there is still a
very minor possibility of such. It isn't possible to list lspci -vv for
the failed kernel, which is requested in the boot message at one point,
so I have to do this through the RH stock 2.4.2 SMP kernel of RH 7.1.
Kernel config for this is attached.

D. Stimits, stimits@idcomm.com

Bootup:
...
...
...
Redundant entry in serial pci_table.  Please send the output of
lspci -vv, this message (4793,4104,4793,173)
...
...
...
RAMDISK: Compressed image found at block 0
Freeing initrd memory: 249k freed
VFS: Mounted root (ext2 filesystem).
Red Hat nash version 3.0.10 starting
VFS: Mounted root (ext2 filesystem) readonly.
change_root: old root has d_count=2
Trying to unmount old root ... <1>Unable to handle kernel NULL pointer
dereference at virtual address 00000010
 printing eip:
c01c5bda
*pde = 00000000
Oops: 0000
CPU:    1
EIP:    0010:[<c01c5bda>]
EFLAGS: 00010202
eax: 00000000   ebx: 00000000   ecx: 00001261   edx: c1479d98
esi: 00000000   edi: c1479e2c   ebp: ffffffff   esp: c1479d68
ds: 0018   es: 0018   ss: 0018
Process swapper (pid: 1, stackpage=c1479000)
Stack: c1478000 cfe97f60 c1479e2c c013b0fb c1479d98 00000000 00001261
00000000
       cfeac560 00000000 fffffffe cfe97f60 cff06ea4 cff06e10 c0346340
0001def6
       cfef0001 c01ea7b2 cff06e00 00000082 00000202 c14e1cb8 cfef8200
cff07e60
Call Trace: [<c013b0fb>] [<c01ea7b2>] [<c0112912>] [<c01bd021>]
[<c01c5b69>] [<c01bdd44>] [<c01374cd>]
       [<c012dcef>] [<c0124bc9>] [<c0147e3f>] [<c014961b>] [<c013b3d4>]
[<c0139027>] [<c013825c>] [<c0106efb>]
       [<c01051d8>] [<c010522a>] [<c01056fb>]

Code: 8b 40 10 83 f8 02 7e 0e b8 f0 ff ff ff eb 7e 8d b4 26 00 00
Kernel panic: Attempted to kill init!




>From lspci -vv:
~# lspci -vv
00:00.0 Host bridge: Intel Corporation 82840 840 (Carmel) Chipset Host
Bridge (Hub A) (rev 01)
	Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr-
Stepping- SERR+ FastB2B-
	Status: Cap+ 66Mhz- UDF- FastB2B+ ParErr- DEVSEL=fast >TAbort- <TAbort-
<MAbort+ >SERR- <PERR+
	Latency: 0
	Region 0: Memory at f0000000 (32-bit, prefetchable) [size=128M]
	Capabilities: [a0] AGP version 2.0
		Status: RQ=31 SBA+ 64bit- FW+ Rate=x1,x2
		Command: RQ=0 SBA- AGP- 64bit- FW- Rate=<none>

00:01.0 PCI bridge: Intel Corporation 82840 840 (Carmel) Chipset AGP
Bridge (rev 01) (prog-if 00 [Normal decode])
	Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr-
Stepping- SERR+ FastB2B-
	Status: Cap- 66Mhz+ UDF- FastB2B+ ParErr- DEVSEL=fast >TAbort- <TAbort-
<MAbort- >SERR- <PERR-
	Latency: 64
	Bus: primary=00, secondary=04, subordinate=04, sec-latency=64
	I/O behind bridge: 0000d000-0000dfff
	Memory behind bridge: fca00000-feafffff
	Prefetchable memory behind bridge: dc100000-ec1fffff
	BridgeCtl: Parity+ SERR+ NoISA- VGA+ MAbort- >Reset- FastB2B-

00:02.0 PCI bridge: Intel Corporation 82840 840 (Carmel) Chipset PCI
Bridge (Hub B) (rev 01) (prog-if 00 [Normal decode])
	Control: I/O+ Mem+ BusMaster+ SpecCycle+ MemWINV+ VGASnoop- ParErr-
Stepping- SERR+ FastB2B-
	Status: Cap- 66Mhz+ UDF- FastB2B+ ParErr- DEVSEL=fast >TAbort- <TAbort-
<MAbort- >SERR- <PERR-
	Latency: 64
	Bus: primary=00, secondary=02, subordinate=03, sec-latency=64
	I/O behind bridge: 0000b000-0000cfff
	Memory behind bridge: fc800000-fc9fffff
	Prefetchable memory behind bridge: dbf00000-dc0fffff
	BridgeCtl: Parity+ SERR+ NoISA- VGA- MAbort- >Reset- FastB2B-

00:1e.0 PCI bridge: Intel Corporation 82801AA PCI Bridge (rev 02)
(prog-if 00 [Normal decode])
	Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr-
Stepping- SERR+ FastB2B-
	Status: Cap- 66Mhz- UDF- FastB2B+ ParErr- DEVSEL=fast >TAbort- <TAbort-
<MAbort- >SERR- <PERR-
	Latency: 0
	Bus: primary=00, secondary=01, subordinate=01, sec-latency=64
	I/O behind bridge: 0000a000-0000afff
	Memory behind bridge: fc300000-fc7fffff
	Prefetchable memory behind bridge: dbe00000-dbefffff
	BridgeCtl: Parity+ SERR+ NoISA- VGA- MAbort- >Reset- FastB2B-

00:1f.0 ISA bridge: Intel Corporation 82801AA ISA Bridge (LPC) (rev 02)
	Control: I/O+ Mem+ BusMaster+ SpecCycle+ MemWINV- VGASnoop- ParErr-
Stepping- SERR+ FastB2B-
	Status: Cap- 66Mhz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort-
<TAbort- <MAbort- >SERR- <PERR-
	Latency: 0

00:1f.1 IDE interface: Intel Corporation 82801AA IDE (rev 02) (prog-if
80 [Master])
	Subsystem: Intel Corporation 82801AA IDE
	Control: I/O+ Mem- BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr-
Stepping- SERR- FastB2B-
	Status: Cap- 66Mhz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort-
<TAbort- <MAbort- >SERR- <PERR-
	Latency: 0
	Region 4: I/O ports at ffa0 [size=16]

00:1f.2 USB Controller: Intel Corporation 82801AA USB (rev 02) (prog-if
00 [UHCI])
	Subsystem: Intel Corporation 82801AA USB
	Control: I/O+ Mem- BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr-
Stepping- SERR- FastB2B-
	Status: Cap- 66Mhz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort-
<TAbort- <MAbort- >SERR- <PERR-
	Latency: 0
	Interrupt: pin D routed to IRQ 5
	Region 4: I/O ports at ef80 [size=32]

00:1f.3 SMBus: Intel Corporation 82801AA SMBus (rev 02)
	Subsystem: Intel Corporation 82801AA SMBus
	Control: I/O+ Mem- BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr-
Stepping- SERR- FastB2B-
	Status: Cap- 66Mhz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort-
<TAbort- <MAbort- >SERR- <PERR-
	Interrupt: pin B routed to IRQ 9
	Region 4: I/O ports at efa0 [size=16]

01:00.0 Multimedia audio controller: Creative Labs SB Live! EMU10000
(rev 05)
	Subsystem: Creative Labs CT4760 SBLive!
	Control: I/O+ Mem- BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr-
Stepping- SERR+ FastB2B-
	Status: Cap+ 66Mhz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort-
<TAbort- <MAbort- >SERR- <PERR-
	Latency: 64 (500ns min, 5000ns max)
	Interrupt: pin A routed to IRQ 11
	Region 0: I/O ports at af80 [size=32]
	Capabilities: [dc] Power Management version 1
		Flags: PMEClk- DSI- D1- D2- AuxCurrent=0mA
PME(D0-,D1-,D2-,D3hot-,D3cold-)
		Status: D0 PME-Enable- DSel=0 DScale=0 PME-

01:00.1 Input device controller: Creative Labs SB Live! (rev 05)
	Subsystem: Creative Labs Gameport Joystick
	Control: I/O+ Mem- BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr-
Stepping- SERR+ FastB2B-
	Status: Cap+ 66Mhz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort-
<TAbort- <MAbort- >SERR- <PERR-
	Latency: 64
	Region 0: I/O ports at aff0 [size=8]
	Capabilities: [dc] Power Management version 1
		Flags: PMEClk- DSI- D1- D2- AuxCurrent=0mA
PME(D0-,D1-,D2-,D3hot-,D3cold-)
		Status: D0 PME-Enable- DSel=0 DScale=0 PME-

01:01.0 Serial controller: US Robotics/3Com 56K FaxModem Model 5610 (rev
01) (prog-if 02 [16550])
	Subsystem: US Robotics/3Com USR 56k Internal FAX Modem (Model 5610)
	Control: I/O+ Mem- BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr-
Stepping- SERR+ FastB2B-
	Status: Cap+ 66Mhz- UDF- FastB2B- ParErr- DEVSEL=medium >TAbort-
<TAbort- <MAbort- >SERR- <PERR-
	Interrupt: pin A routed to IRQ 9
	Region 0: I/O ports at afe0 [size=8]
	Capabilities: [dc] Power Management version 2
		Flags: PMEClk- DSI- D1- D2+ AuxCurrent=0mA
PME(D0+,D1-,D2+,D3hot+,D3cold+)
		Status: D0 PME-Enable- DSel=0 DScale=2 PME-

01:08.0 Ethernet controller: Intel Corporation 82557 [Ethernet Pro 100]
(rev 08)
	Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV+ VGASnoop- ParErr-
Stepping- SERR+ FastB2B-
	Status: Cap+ 66Mhz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort-
<TAbort- <MAbort- >SERR- <PERR-
	Latency: 64 (2000ns min, 14000ns max), cache line size 08
	Interrupt: pin A routed to IRQ 11
	Region 0: Memory at fc7ff000 (32-bit, non-prefetchable) [size=4K]
	Region 1: I/O ports at af00 [size=64]
	Region 2: Memory at fc600000 (32-bit, non-prefetchable) [size=1M]
	Expansion ROM at fc500000 [disabled] [size=1M]
	Capabilities: [dc] Power Management version 2
		Flags: PMEClk- DSI+ D1+ D2+ AuxCurrent=0mA
PME(D0+,D1+,D2+,D3hot+,D3cold+)
		Status: D0 PME-Enable- DSel=0 DScale=2 PME-

02:1f.0 PCI bridge: Intel Corporation 82806AA PCI64 Hub PCI Bridge (rev
02) (prog-if 00 [Normal decode])
	Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr-
Stepping- SERR+ FastB2B-
	Status: Cap- 66Mhz+ UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort-
<MAbort- >SERR- <PERR-
	Latency: 0
	Bus: primary=02, secondary=03, subordinate=03, sec-latency=64
	I/O behind bridge: 0000b000-0000bfff
	Memory behind bridge: fc800000-fc8fffff
	Prefetchable memory behind bridge: dbf00000-dbffffff
	BridgeCtl: Parity+ SERR+ NoISA- VGA- MAbort- >Reset- FastB2B-

03:00.0 PIC: Intel Corporation 82806AA PCI64 Hub Advanced Programmable
Interrupt Controller (rev 01) (prog-if 20 [IO(X)-APIC])
	Subsystem: Intel Corporation 82806AA PCI64 Hub Advanced Programmable
Interrupt Controller
	Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr-
Stepping- SERR- FastB2B-
	Status: Cap- 66Mhz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort-
<MAbort- >SERR- <PERR-
	Latency: 0
	Region 0: Memory at fc8fe000 (32-bit, non-prefetchable) [size=4K]

03:04.0 SCSI storage controller: Adaptec 7892P (rev 02)
	Subsystem: Super Micro Computer Inc: Unknown device 9005
	Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV+ VGASnoop- ParErr-
Stepping- SERR- FastB2B-
	Status: Cap+ 66Mhz+ UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort-
<TAbort- <MAbort- >SERR- <PERR-
	Latency: 64 (10000ns min, 6250ns max), cache line size 08
	Interrupt: pin A routed to IRQ 10
	BIST result: 00
	Region 0: I/O ports at b800 [size=256]
	Region 1: Memory at fc8ff000 (64-bit, non-prefetchable) [size=4K]
	Expansion ROM at fc8c0000 [disabled] [size=128K]
	Capabilities: [dc] Power Management version 2
		Flags: PMEClk- DSI- D1- D2- AuxCurrent=0mA
PME(D0-,D1-,D2-,D3hot-,D3cold-)
		Status: D0 PME-Enable- DSel=0 DScale=0 PME-

04:00.0 VGA compatible controller: nVidia Corporation GeForce 256 DDR
(rev 10) (prog-if 00 [VGA])
	Subsystem: Creative Labs CT6971 GeForce 256 DDR
	Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr-
Stepping- SERR- FastB2B-
	Status: Cap+ 66Mhz+ UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort-
<TAbort- <MAbort- >SERR- <PERR-
	Latency: 64 (1250ns min, 250ns max)
	Interrupt: pin A routed to IRQ 11
	Region 0: Memory at fd000000 (32-bit, non-prefetchable) [size=16M]
	Region 1: Memory at e0000000 (32-bit, prefetchable) [size=128M]
	Expansion ROM at feaf0000 [disabled] [size=64K]
	Capabilities: [60] Power Management version 1
		Flags: PMEClk- DSI- D1- D2- AuxCurrent=0mA
PME(D0-,D1-,D2-,D3hot-,D3cold-)
		Status: D0 PME-Enable- DSel=0 DScale=0 PME-
	Capabilities: [44] AGP version 2.0
		Status: RQ=31 SBA- 64bit- FW+ Rate=x1,x2
		Command: RQ=0 SBA- AGP- 64bit- FW- Rate=<none>