I'm trying to run Debian Linux on a Nokia IP710 firewall, but I can't get it to boot correctly: kernel panic every time.The firewall has a Pentium III 1Ghz and 512MB RAM. It has no vga, a very limited bios (ie no pxe/netboot), and no cdrom drive nor usb ports. Its operating system was Nokia IPSO, based on FreeBSD.IPSO was booted from a 32MB CF card on which there was the bootloader, and the OS was on the 40GB hard drive.I installed Debian (Wheezy) from within qemu on a 4GB compact-flash, and later on a hard drive with a 32MB as /boot. Both OS works fine when booted within qemu or on a x86 thin-client. However, they crash at each boot on the firewall with those logs:[    2.676304] BUG: unable to handle kernel paging request at ffff8000[    2.680166] IP: [<c1010aec>] io_apic_write+0xb/0x13[    2.680166] *pde = 01442067 *pte = 00000000 [    2.680166] Oops: 0002 [#1] [    2.680166] Modules linked in:[    2.680166] [    2.680166] Pid: 1, comm: swapper Not tainted 3.2.0-4-486 #1 Debian 3.2.32-1  [    2.680166] EIP: 0060:[<c1010aec>] EFLAGS: 00010086 CPU: 0[    2.680166] EIP is at io_apic_write+0xb/0x13[    2.680166] EAX: ffff8000 EBX: 00000031 ECX: 01000000 EDX: ffff8000[    2.680166] ESI: 01000000 EDI: 0001a929 EBP: 00000002 ESP: dec2dea0[    2.680166]  DS: 007b ES: 007b FS: 0000 GS: 00e0 SS: 0068[    2.680166] Process swapper (pid: 1, ti=dec2c000 task=dec1ec00 task.ti=dec2c000)[    2.680166] Stack:[    2.680166]  00000010 00000002 c1010b5f 00000246 0001a929 01000000 c1010b95 0001a929[    2.680166]  01000000 00000010 66858080 dec2df20 c1315489 00000010 c1011974 0001a929[    2.680166]  01000000 00000001 00000000 00000002 0001a929 01000000 c1448d44 00000010and after the call trace:[    2.680166] EIP: [<c1010aec>] io_apic_write+0xb/0x13 SS:ESP 0068:dec2dea0[    2.680166] CR2: 00000000ffff8000[    2.680166] ---[ end trace 6f619dcb164ee6d0 ]---[    2.680206] Kernel panic - not syncing: Attempted to kill init![    2.684175] Pid: 1, comm: swapper Tainted: G      D      3.2.0-4-486 #1 Debian 3.2.32-1I also tried kernel 3.2.35, with the same result.There is also a bunch of PCI-related error messages: [    2.467037] pci 0000:00:02.0: address space collision: [mem 0xff000000-0xff03ffff pref] conflicts with 0000:00:01.0 [mem 0xff000000-0xff03ffff pref][    2.488165] pci 0000:04:06.0: no compatible bridge window for [mem 0xff000000-0xff03ffff pref][    2.620180] pci 0000:00:03.0: enabling device (0000 -> 0003)[    2.624179] pci 0000:00:03.0: can't find IRQ for PCI INT A; probably buggy MP table[    2.628186] pci 0000:00:03.1: enabling device (0000 -> 0003)[    2.632174] pci 0000:00:03.1: can't find IRQ for PCI INT B; probably buggy MP tableAnd 512 of these messages (with pin 0-255, twice): [    1.172083] Unable to reset IRR for apic: 255, pin :3I'd like to know how to troubleshoot these crashes. Most of the documentation I've read (like Documentation/oops-tracing.txt) does not mention the case when the kernel crashes at boot. The full bootlog saved from console is here.Edit: As per @jordanm suggestion, I ran memtest overnight (11hours). It went fine without any errors:       Memtest86+ v4.20      | Pass100% ####################################### Pentium III 999.6MHz        | Test 81% ###############################         L1 Cache:   16K   9342 MB/s | Test #8  [Modulo 20, Random pattern]           L2 Cache:  256K   4253 MB/s | Testing:  196K -  512M  512M          L3 Cache:       None        | Pattern: ab46c0e3-17   Memory  :  512M    406 MB/s |-------------------------------------------------Chipset : CNB20HE (ECC : Detect / Correct) Scrub+  WallTime   Cached  RsvdMem   MemMap   Cache  ECC  Test  Pass  Errors ECC Errs ---------  ------  -------  --------  -----  ---  ----  ----  ------ --------  11:06:12    512M       0K    e820      on   off   Std     9       0 -----------------------------------------------------------------------------
How to troubleshoot kernel panic on boot
debian;boot;kernel panic