[coreboot] Trying to get coreboot running on VIA EPIA-M (lzma: Decoding error = 1)

[Peter Stuge]

Marius Schäfer wrote:
> Can you read anything out of these lines and help me?
..
> WARNING: BIOS bug: CPU MTRRs don't cover all of memory, losing 63MB of RAM.
> ------------[ cut here ]------------
> WARNING: at arch/x86/kernel/cpu/mtrr/cleanup.c:971
> mtrr_trim_uncached_memory+0x411/0x42e()
> Pid: 0, comm: swapper Not tainted 3.2.44 #7
> Call Trace:
>  [<c1017964>] ? warn_slowpath_common+0x63/0x74
>  [<c12f98f2>] ? mtrr_trim_uncached_memory+0x411/0x42e
>  [<c10179f8>] ? warn_slowpath_null+0xd/0x11
>  [<c12f98f2>] ? mtrr_trim_uncached_memory+0x411/0x42e
>  [<c12f5165>] ? setup_arch+0x4eb/0x9dd
>  [<c12f3421>] ? start_kernel+0x5e/0x275
> ---[ end trace 4eaa2a86a8e2da22 ]---

As Ron says, work on fixing this MTRR problem.


> update e820 for mtrr
> modified physical RAM map:
>  modified: 0000000000000000 - 0000000000001000 type 16
>  modified: 0000000000001000 - 00000000000a0000 (reserved)
>  modified: 0000000000100000 - 0000000004000000 (reserved)
>  modified: 0000000004000000 - 000000001dfe0000 (usable)
>  modified: 000000001dfe0000 - 000000001e000000 type 16
> last_pfn = 0x1dfe0 max_arch_pfn = 0x100000
> Kernel panic - not syncing: Cannot allocate trampoline
> 
> Pid: 0, comm: swapper Tainted: G        W    3.2.44 #7
> Call Trace:
>  [<c12245eb>] ? panic+0x57/0x12a
>  [<c12f77e7>] ? setup_trampolines+0x40/0xb1
>  [<c12f51df>] ? setup_arch+0x565/0x9dd
>  [<c12f3421>] ? start_kernel+0x5e/0x275

Check the kernel source to find out what the constraints are for that
trampoline allocation. Maybe it must be in some region where there
isn't any available RAM, which would be a bug in the memory map for
this (and more?) mainboards.

Try to find out more details.


//Peter