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User-Agent: Mozilla/5.0 (X11; U; Linux ppc; en-US; rv:1.7.12) Gecko/20051203

Description of problem:
After starting nash, the computer hangs for about 20 seconds, after which it crashes as below. I have tried adding sleep statements into the "init" script, as in bug #159769, but to no avail. Here're some middle-click results:

On the (null-modem serial) console:
Unable to handle kernel NULL pointer dereference at virtual address 00000000
 printing eip:
*pde = 00423001
Oops: 0002 [#1]
SMP
Modules linked in: aic7xxx scsi_transport_spi sd_mod scsi_mod
CPU:    0
EIP:    0060:[<d886092b>]    Not tainted VLI
EFLAGS: 00010093   (2.6.14-1.1653_FC4smp)
EIP is at scsi_eh_done+0x39/0x6b [scsi_mod]
eax: d7115800   ebx: d7ec7cc0   ecx: c1307fe0   edx: 00000000
esi: 00000000   edi: d70cb100   ebp: d742ce00   esp: d74aadf4
ds: 007b   es: 007b   ss: 0068
Process scsi_eh_0 (pid: 330, threadinfo=d74aa000 task=d747c570)
Stack: d74aae00 00000001 d7e40070 00000000 d7e40070 d88c60e9 d88bbffb 00000041
       00000000 00000002 00000001 d88bf188 418cac6c 00000001 d74aae4c 00000000
       02000000 d7420302 00000001 00000041 00a205a0 00000080 00000001 00000002
Call Trace:
 [<d88c60e9>] ahc_linux_queue_cmd_complete+0x35/0x7e [aic7xxx]
 [<d88bbffb>] ahc_search_qinfifo+0x205/0x7bb [aic7xxx]
 [<d88bf188>] ahc_dump_card_state+0x11cc/0x12c4 [aic7xxx]
 [<d88c6ab3>] ahc_linux_queue_recovery_cmd+0x8a8/0xa52 [aic7xxx]
 [<c031b401>] __down+0xc8/0x12b
 [<c011c41e>] default_wake_function+0x0/0xc
 [<d88c3f71>] ahc_linux_abort+0xe/0x2b [aic7xxx]
 [<d8860a6b>] scsi_send_eh_cmnd+0x10e/0x1a8 [scsi_mod]
 [<d8860e33>] scsi_eh_tur+0x8e/0xf9 [scsi_mod]
 [<c0120b5a>] printk+0x1b/0x1f
 [<d8860f10>] scsi_eh_abort_cmds+0x72/0xf5 [scsi_mod]
 [<c031b67c>] _spin_unlock_irq+0x5/0x7
 [<c0319bdc>] schedule+0x53c/0xc83
 [<d8861bf1>] scsi_unjam_host+0x90/0x1db [scsi_mod]
 [<d8861d3c>] scsi_error_handler+0x0/0x12e [scsi_mod]
 [<d8861e33>] scsi_error_handler+0xf7/0x12e [scsi_mod]
 [<c0133a09>] kthread+0x93/0x97
 [<c0133976>] kthread+0x0/0x97
 [<c0101d4d>] kernel_thread_helper+0x5/0xb
Code: 85 c0 75 05 83 c4 10 5b c3 8b 83 a8 00 00 00 c7 40 3c fe ff 00 00 a1 80 e

/proc/cpuinfo:
processor       : 0
vendor_id       : GenuineIntel
cpu family      : 6
model           : 5
model name      : Pentium II (Deschutes)
stepping        : 0
cpu MHz         : 334.153
cache size      : 512 KB
fdiv_bug        : no
hlt_bug         : no
f00f_bug        : no
coma_bug        : no
fpu             : yes
fpu_exception   : yes
cpuid level     : 2
wp              : yes
flags           : fpu vme de pse tsc msr pae mce cx8 apic mtrr pge mca cmov pat pse36 mmx fxsr
bogomips        : 669.53

processor       : 1
vendor_id       : GenuineIntel
cpu family      : 6
model           : 5
model name      : Pentium II (Deschutes)
stepping        : 0
cpu MHz         : 334.153
cache size      : 512 KB
fdiv_bug        : no
hlt_bug         : no
f00f_bug        : no
coma_bug        : no
fpu             : yes
fpu_exception   : yes
cpuid level     : 2
wp              : yes
flags           : fpu vme de pse tsc msr pae mce cx8 apic mtrr pge mca cmov pat pse36 mmx fxsr
bogomips        : 668.26

lspci:
00:00.0 Host bridge: Intel Corporation 440LX/EX - 82443LX/EX Host bridge (rev 03)
00:01.0 PCI bridge: Intel Corporation 440LX/EX - 82443LX/EX AGP bridge (rev 03)
00:04.0 ISA bridge: Intel Corporation 82371AB/EB/MB PIIX4 ISA (rev 01)
00:04.1 IDE interface: Intel Corporation 82371AB/EB/MB PIIX4 IDE (rev 01)
00:04.2 USB Controller: Intel Corporation 82371AB/EB/MB PIIX4 USB (rev 01)
00:04.3 Bridge: Intel Corporation 82371AB/EB/MB PIIX4 ACPI (rev 01)
00:06.0 SCSI storage controller: Adaptec AIC-7880U
00:09.0 Multimedia audio controller: Ensoniq ES1370 [AudioPCI]
00:0a.0 VGA compatible controller: 3Dfx Interactive, Inc. Voodoo 4 / Voodoo 5 (rev 01)
00:0b.0 Ethernet controller: 3Com Corporation 3c905B 100BaseTX [Cyclone] (rev 30)
00:0c.0 Ethernet controller: 3Com Corporation 3c905B 100BaseTX [Cyclone] (rev 30)



Version-Release number of selected component (if applicable):
kernel-2.6.14-1.1653_FC4

How reproducible:
Always

Steps to Reproduce:
1. Install the above-mentioned kernel
2. Reboot
3. Enjoy the crash
  

Actual Results:  See above.

Expected Results:  Normal boot.

Additional info: