PANIC: early exception 08 rip 246:10 error ffffffff810251b5 cr2 0

From: Justin P. Mattock
Date: Fri Oct 23 2009 - 19:45:04 EST


I was looking into seeing if kdump might be able to log this in, but after reading up
I realized that kdump is something that needs to be on then if a crash occurs,
then kexec to the rescue.

Anyways I posted a picture on my facebook page of this, and also will send a post
manually writing this down.
Basically when I use ohci1394_dma=early on the boot param
this happens. if I don't use that boot option then the system runs fine.

[ 0.000000] [<ffffffff81639995>] start_kernel+0x82/0x34d
[ 0.000000] [<ffffffff816392a5>] x86_64_start_reservations+0xac/0xb0
[ 0.000000] [<ffffffff816393a1>] x86_64_start_kernel+0xf8/0x107
PANIC: early exception 08 rip 246:10 error ffffffff810251b5 cr2 0
[ 0.000000] Pid: 0, comm: swapper Not tainted 2.6.32-rc4-00001-g1896a85 #35
[ 0.000000] Call Trace:
[ 0.000000] [<ffffffff8163919e>] early_idt_handler+0x5e/0x71
[ 0.000000] [<ffffffff813b9958>] ? panic+0x10c/0x12e
[ 0.000000] [<ffffffff8164f777>] ___alloc_bootmem_node+0x0/0x60
[ 0.000000] [<ffffffff8164f8eb>] __alloc_bootmem+0xb/0xd
[ 0.000000] [<ffffffff813aba66>] spp_getpage+0x3a/0x6f
[ 0.000000] [<ffffffff8102770d>] fill_pte+0x22/0xde
[ 0.000000] [<ffffffff810278e7>] set_pte_vaddr_pud+0x2c/0x48
[ 0.000000] [<ffffffff81027963>] set_pte_vaddr+0x60/0x65
[ 0.000000] [<ffffffff8102b82e>] __native_set_fixmap+0x24/0x2c
[ 0.000000] [<ffffffff81660252>] init_ohci1394_dma_on_all_controllers+0x9b/0x345
[ 0.000000] [<ffffffff8163be6b>] setup_arch+0x543/0x950
[ 0.000000] [<ffffffff813b99b6>] ? printk+0x3c/0x3e
[ 0.000000] [<ffffffff810646b6>] ? clockevents_register_notifier+0x3e/0x48
[ 0.000000] [<ffffffff81639995>] start_kernel+0x82/0x34d
[ 0.000000] [<ffffffff816392a5>] x86_64_start_reservations+0xac/0xb0
[ 0.000000] [<ffffffff816393a1>] x86_64_start_kernel+0xf8/0x107
[ 0.000000] RIP 0x10

The system is a LFS pure64 build on an imac,macbook(both systems the
same, and both crash like this).

Any ideas on this, and also any ideas on how I could try and grab a
syslog this early in the boot?

Justin P. Mattock


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