I'm trying to do a fresh install of F7 x86_64 from DVD onto my main desktop machine (previously running FC6 x86_64). I just got a kernel panic. This message is partly to capture the symptoms. The CPU is an Athlon 64 x2 (older -- Socket 939). Lots of RAM -- 3G, so that should not be a problem. SATA1 hard drive, IDE DVD Burner, IDE DVD reader. ATI chipset but nVidea add-in graphics card. Progress seemed to stall during "checking dependencies" (or whatever that step is called -- I'm reporting from memory). So I did an C-A-F1 to see what the console said. It said the usual stuff, that I don't remember, but probably a few of these: (anaconda:839) HtmlUtil - CRITICAL **: html_stream_cancel: assertion `stream->cancel_func != NULL' failed A few seconds later spewed a panic message, some of it off the screen. Here's what is on the screen still. (This is going to be a bother to transcribe!) R13: ffffffff805a2544 R14:ffffffff8062c2e0 R15: 0000000000000000 FS: 00002aaaac627fd0(0000) GS:ffffffff8059c000(0000) knlGS:0000000000000000 CS: 0010 DS: 0018 ES: 0018 CR0: 000000008005003b CR2: 0000000000000000 CR3: 00000000b898b000 CR4: 00000000000006e0 Process swapper (pid: 0, threadinfo ffffffff805fe000, task ffffffff805545c0) Stack: ffffffff802aeb4a 0000000000000046 ffffffff805ffed8 0000000000000000 0000000000000030 0000000000000000 ffffffff80265498 ffffffff80656f98 ffffffff80263d5d ffffffff805fff00 ffffffffffffffff ffffffff80629ea0 Call Trace: <IRQ> [<ffffffff802aeb4a>] handle_edge_irq+0x5c/0x128 [<ffffffff80265498>] do_IRQ+0xf1/0x15f [<ffffffff80263d5d>] default_idle+0x0/0x3d [<ffffffff80257631>] ret_from_intr+0x0/0xa <EOI> [<ffffffff80263d86>] default_idle+ox29/ox3d [<ffffffff80244224>] cpu_idle+0x8c/0xaf [<ffffffff80609815>] start_kernel+0x2b9/0x2c5 [<ffffffff8060915c>] _sinittext+0x15c/0x160 Code: Bad RIP value. RIP [<0000000000000000>] RSP <ffffffff8065df50> CR2: 0000000000000000 Kernel Panic - not syncing: Aiee, killing interrupt handler! I have no way of knowing if the dependency checking finished before the panic. (If it is going to crash, I sure wish that it would crashed earlier. I spent a bunch of time selecting packages, all for naught.) I don't see anything quite like this in bugzila. Maybe this one, but it is pretty non-specific: https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=242369