Call Trace:
[<c0418346>] startup_ioapic_irq+0x36/0x48
[<c04506b6>] probe_irq)on+0x4d/0x108
[<c0546a08>] serial8250_config_port+0x76c/0x940
[<c05f83c6>] klist_next+0x24/0x6c
[<c054a03>] uart_add_one_port+0xd0/0x264
[<c05f84b9>] klist_node_init+0x33/0x36
[<c0549e00>] device_add+0x61c/0x626
[<c054cd59>] platform_device_add+0xe8/0x116
[<c054949f>] device_initialize+0x63/0x85
[<c054ce88>] platform_device_alloc+0x4a/0x5c
[<c0544755>] uart_register)driver+0xf0/0x117
[<c0728ab3>] serial8250_init+0xba/0x100
[<c070e64a>] init+0x1ee/0x2ce
[<c0404eb6>] ret_from_fork+0x6/0x20
[<c070e45c>] init+0x0/0x2ce
[<c070e45c>] init+0x0/0x2ce
[<c04061b7>] kernel_thread_helper+0x7/0x10
=======================
Code: 5f 5d c3 55 89 cd 57 56 53 83 ec 04 89 14 24 6b c0 0c 8d 98 c0 74 79 c0 8b 43 04 83 f8 ff 74 37 8d 74 00 10 8b 03 e8 90 ff ff ff <89> 30 8b 78 10 8b 03 e8 84 ff ff ff 83 3d 60 00 6d c0 00 89 c2

EIP: [<c0417a60>] _ _modify_IO_APIC_irq+0x28/0x5a SS:ESP 0068:dfa0ae8c
Kernel panic - not syncing: Attempted to kill init!

here is the error I'm getting I can get more info on my system if need be, I have 1 gig of ram that is working perfectly fine, my hard drive is good, its just not installing fedora....

You can try booting with:

noapic

and see if the apic chip is buggy, or your bios is being buggy with it ... there are a few other apic boot options such as apic=debug

You would interrupt the boot process at the GrUB splash screen by pressing enter
Arrow down to the line starting with kernel
Hit the "a" key to append
place a single space then add: noapic
then boot into it -- can't remember if you hit enter, then b, or "e" then "b" for that

good luck

I followed the instructions given to use the noapic option to no avail. I am able to boot into Fedora 7 but when I attempt to boot into Fedora 7 XEN, that is when I have this issue.

so I tried the noapic trick by hitting esc then f4 for kernel then typing linux noapic and it gives me new errors
EIP: [<c041c782>] kmap_automatic+0x2e/0x91 SS:ESP 0068:dfa0aef0
then kernel panic again

Greetings

Have you ever had memory issues on this machine?

Can you paste the last 50 or so lines right before the kernel panic please?

i had the same problem in fc-6 but i installed by typing 'garbage' and it will give a msg kernel module garbage not found again hit enter and your installation will proceed without any problem. hope it will work on f-7 too.

I am confused by the last posting with respect to "garbage" at install. I have already installed FC7 and have, daily, grabbed and installed the latest package updates.

I do not know where "garbage" fits in at install?

Yeah I tried doing the garbage thing, and the noapic thing, not having any problems with my memory, rand memtest84 through the install, and a coupple of ram tests and a coupple of chip tests, ect. ect. ect. can only get about the prev 24 lines of information its driving me nuts.....