[LinuxBIOS] Problems with Filo booting - HELP

Help me please. I have attached my bootlog. Filo gets this error, what  
does it mean?

Thanks - Joe

-------------------------------------------------
Welcome to elfboot, the open sourced starter.
January 2002, Eric Biederman.
Version 1.3

rom_stream: 0xfffd0000 - 0xfffeffff
Found ELF candidate at offset 0
header_offset is 0
Try to load at offset 0x0
malloc Enter, size 32, free_mem_ptr 00018000
malloc 0x00018000
New segment addr 0x100000 size 0x3d260 offset 0xc0 filesize 0x13248
(cleaned up) New segment addr 0x100000 size 0x3d260 offset 0xc0  
filesize 0x13248
lb: [0x0000000000004000, 0x000000000001c000)
malloc Enter, size 32, free_mem_ptr 00018020
malloc 0x00018020
New segment addr 0x13d260 size 0x48 offset 0x13320 filesize 0x48
(cleaned up) New segment addr 0x13d260 size 0x48 offset 0x13320 filesize 0x48
lb: [0x0000000000004000, 0x000000000001c000)
Dropping non PT_LOAD segment
Dropping non PT_LOAD segment
Loading Segment: addr: 0x0000000000100000 memsz: 0x000000000003d260  
filesz: 0x0000000000013248
[ 0x0000000000100000, 0000000000113248, 0x000000000013d260) <-  
00000000000000c0
Clearing Segment: addr: 0x0000000000113248 memsz: 0x000000000002a018
Loading Segment: addr: 0x000000000013d260 memsz: 0x0000000000000048  
filesz: 0x0000000000000048
[ 0x000000000013d260, 000000000013d2a8, 0x000000000013d2a8) <-  
0000000000013320
Loaded segments
verified segments
closed down stream
Jumping to boot code at 0x10ea14
entry    = 0x0010ea14
lb_start = 0x00004000
lb_size  = 0x00018000
adjust   = 0x07fe4000
buffer   = 0x07fd0000
      elf_boot_notes = 0x000139a0
adjusted_boot_notes = 0x07ff79a0
Unexpected Exception: -1 @ ffffffff:ffffffff - Halting
Code: -1 eflags: ffffffff
eax: ffffffff ebx: ffffffff ecx: ffffffff edx: 00018000
edi: ffffffff esi: ffffffff ebp: 0010003c esp: 00100014
--------------------------------------------------------

[Stefan Reinauer]

* [e-mail]  [070929 22:51]:
> Help me please. I have attached my bootlog. Filo gets this error, what does 
> it mean?

Did you succeed loading any other payloads? memtest?
> Jumping to boot code at 0x10ea14
> entry    = 0x0010ea14
> lb_start = 0x00004000
> lb_size  = 0x00018000
> adjust   = 0x07fe4000
> buffer   = 0x07fd0000
>      elf_boot_notes = 0x000139a0
> adjusted_boot_notes = 0x07ff79a0
> Unexpected Exception: -1 @ ffffffff:ffffffff - Halting
> Code: -1 eflags: ffffffff
> eax: ffffffff ebx: ffffffff ecx: ffffffff edx: 00018000
> edi: ffffffff esi: ffffffff ebp: 0010003c esp: 00100014

It almost looks like it never jumped into FILO really.

This exception handling is from LB. I wonder why everything is ffffffff
though.

Quoting Stefan Reinauer :
> [e-mail]  [070929 22:51]:
> > Help me please. I have attached my bootlog. Filo gets this error, what does
> > it mean?
>
> Did you succeed loading any other payloads? memtest?

I have just been using /etc/hosts so far. I tried filo and this is  
what happens. Should I try memtest first?

Thanks - Joe

Quoting [e-mail]:
> Quoting Stefan Reinauer :
> > [e-mail]  [070929 22:51]:
> > > Help me please. I have attached my bootlog. Filo gets this error, what does
> > > it mean?
> >
> > Did you succeed loading any other payloads? memtest?
>
> I have just been using /etc/hosts so far. I tried filo and this is
> what happens. Should I try memtest first?

I just wanted to report etherboot is doing the same thing. What could  
be causing this?? Someone please help me.............

Thanks - Joe
--------------------------------------------
rom_stream: 0xfffd0000 - 0xfffeffff
Found ELF candidate at offset 0
header_offset is 0
Try to load at offset 0x0
n_type: 00000001 n_name(8): ELFBoot  n_desc(10): Etherboot
n_type: 00000002 n_name(8): ELFBoot  n_desc(6): 5.4.3
Loading Etherboot version: 5.4.3
Dropping non PT_LOAD segment
malloc Enter, size 32, free_mem_ptr 00018000
malloc 0x00018000
New segment addr 0x10000 size 0xa880 offset 0x0 filesize 0x6560
(cleaned up) New segment addr 0x10000 size 0xa880 offset 0x0 filesize 0x6560
lb: [0x0000000000004000, 0x000000000001c000)
segment: [0x0000000000010000, 0x0000000000016560, 0x000000000001a880)
  bounce: [0x0000000007fdc000, 0x0000000007fe2560, 0x0000000007fe6880)
Loading Segment: addr: 0x0000000007fdc000 memsz: 0x000000000000a880  
filesz: 0x0000000000006560
[ 0x0000000007fdc000, 0000000007fe2560, 0x0000000007fe6880) <-  
0000000000000000
Clearing Segment: addr: 0x0000000007fe2560 memsz: 0x0000000000004320
Loaded segments
verified segments
closed down stream
Jumping to boot code at 0x100b0
entry    = 0x000100b0
lb_start = 0x00004000
lb_size  = 0x00018000
adjust   = 0x07fe4000
buffer   = 0x07fd0000
      elf_boot_notes = 0x000139a0
adjusted_boot_notes = 0x07ff79a0
Unexpected Exception: -1 @ ffffffff:ffffffff - Halting
Code: -1 eflags: ffffffff
eax: ffffffff ebx: ffffffff ecx: ffffffff edx: 00018000
edi: ffffffff esi: ffffffff ebp: 0010003c esp: 00100014
---------------------------------------------------------

[Corey Osgood]

[e-mail] wrote:
> I just wanted to report etherboot is doing the same thing. What could
> be causing this?? Someone please help me.............
> Thanks - Joe
>
> rom_stream: 0xfffd0000 - 0xfffeffff
> Found ELF candidate at offset 0
> header_offset is 0
> Try to load at offset 0x0
> n_type: 00000001 n_name(8): ELFBoot  n_desc(10): Etherboot
> n_type: 00000002 n_name(8): ELFBoot  n_desc(6): 5.4.3
> Loading Etherboot version: 5.4.3
> Dropping non PT_LOAD segment
> malloc Enter, size 32, free_mem_ptr 00018000
> malloc 0x00018000
> New segment addr 0x10000 size 0xa880 offset 0x0 filesize 0x6560
> (cleaned up) New segment addr 0x10000 size 0xa880 offset 0x0 filesize 0x6560
> lb: [0x0000000000004000, 0x000000000001c000)
> segment: [0x0000000000010000, 0x0000000000016560, 0x000000000001a880)
>   bounce: [0x0000000007fdc000, 0x0000000007fe2560, 0x0000000007fe6880)
> Loading Segment: addr: 0x0000000007fdc000 memsz: 0x000000000000a880  
> filesz: 0x0000000000006560
> [ 0x0000000007fdc000, 0000000007fe2560, 0x0000000007fe6880) <-  
> 0000000000000000
> Clearing Segment: addr: 0x0000000007fe2560 memsz: 0x0000000000004320
> Loaded segments
> verified segments
> closed down stream
> Jumping to boot code at 0x100b0
> entry    = 0x000100b0
> lb_start = 0x00004000
> lb_size  = 0x00018000
> adjust   = 0x07fe4000
> buffer   = 0x07fd0000
>       elf_boot_notes = 0x000139a0
> adjusted_boot_notes = 0x07ff79a0
> Unexpected Exception: -1 @ ffffffff:ffffffff - Halting
> Code: -1 eflags: ffffffff
> eax: ffffffff ebx: ffffffff ecx: ffffffff edx: 00018000
> edi: ffffffff esi: ffffffff ebp: 0010003c esp: 00100014

This looks, to me, like LinuxBIOS thinks there's more ram
there/available then there really is. 0x100b0 is just above the 64MB
line, so if you only have 64MB (and IIRC that's what's built onto your
board), FILO is trying to execute in non-existent ram. I might be
reading that wrong :/ Also, if you are trying to bring up video, setting
certain registers will reserve ram and FILO won't be able to access it.
Check your ram_resource() calls in northbridge.c.

If that isn't the case, then yes, memtest is the thing to try.

-Corey

Quoting Corey Osgood :
> [e-mail] wrote:
> > I just wanted to report etherboot is doing the same thing. What could
> > be causing this?? Someone please help me.............
> > Thanks - Joe
> >
> > rom_stream: 0xfffd0000 - 0xfffeffff
> > Found ELF candidate at offset 0
> > header_offset is 0
> > Try to load at offset 0x0
> > n_type: 00000001 n_name(8): ELFBoot  n_desc(10): Etherboot
> > n_type: 00000002 n_name(8): ELFBoot  n_desc(6): 5.4.3
> > Loading Etherboot version: 5.4.3
> > Dropping non PT_LOAD segment
> > malloc Enter, size 32, free_mem_ptr 00018000
> > malloc 0x00018000
> > New segment addr 0x10000 size 0xa880 offset 0x0 filesize 0x6560
> > (cleaned up) New segment addr 0x10000 size 0xa880 offset 0x0 filesize 0x6560
> > lb: [0x0000000000004000, 0x000000000001c000)
> > segment: [0x0000000000010000, 0x0000000000016560, 0x000000000001a880)
> >   bounce: [0x0000000007fdc000, 0x0000000007fe2560, 0x0000000007fe6880)
> > Loading Segment: addr: 0x0000000007fdc000 memsz: 0x000000000000a880
> > filesz: 0x0000000000006560
> > [ 0x0000000007fdc000, 0000000007fe2560, 0x0000000007fe6880) <-
> > 0000000000000000
> > Clearing Segment: addr: 0x0000000007fe2560 memsz: 0x0000000000004320
> > Loaded segments
> > verified segments
> > closed down stream
> > Jumping to boot code at 0x100b0
> > entry    = 0x000100b0
> > lb_start = 0x00004000
> > lb_size  = 0x00018000
> > adjust   = 0x07fe4000
> > buffer   = 0x07fd0000
> >       elf_boot_notes = 0x000139a0
> > adjusted_boot_notes = 0x07ff79a0
> > Unexpected Exception: -1 @ ffffffff:ffffffff - Halting
> > Code: -1 eflags: ffffffff
> > eax: ffffffff ebx: ffffffff ecx: ffffffff edx: 00018000
> > edi: ffffffff esi: ffffffff ebp: 0010003c esp: 00100014
>
> This looks, to me, like LinuxBIOS thinks there's more ram
> there/available then there really is. 0x100b0 is just above the 64MB
> line, so if you only have 64MB (and IIRC that's what's built onto your
> board), FILO is trying to execute in non-existent ram. I might be
> reading that wrong :/ Also, if you are trying to bring up video, setting
> certain registers will reserve ram and FILO won't be able to access it.
> Check your ram_resource() calls in northbridge.c.
>
> If that isn't the case, then yes, memtest is the thing to try.
>
> -Corey

Corey the onboard memory is 128MB. I have to set the video buffer to  
something or it won't boot past raminit.c. I have it set to 512K.  
Could this be causing the problem? I will test it with memtest.

Thanks - Joe

[ron minnich]

yes, all -1 (fffffff) sure looks like you are somewhere where memory is not.

ron

[Corey Osgood]

[e-mail] wrote:
> Corey the onboard memory is 128MB. I have to set the video buffer to
> something or it won't boot past raminit.c. I have it set to 512K.
> Could this be causing the problem? I will test it with memtest.

In northbridge.c, you are subtracting that 512K from the usable ram? I
meant to post back that I'd looked it up and you do have 128MB, but
forgot. But yeah, check with memtest.

-Corey

Quoting Corey Osgood :
> [e-mail] wrote:
> > Corey the onboard memory is 128MB. I have to set the video buffer to
> > something or it won't boot past raminit.c. I have it set to 512K.
> > Could this be causing the problem? I will test it with memtest.
>
> In northbridge.c, you are subtracting that 512K from the usable ram? I
> meant to post back that I'd looked it up and you do have 128MB, but
> forgot. But yeah, check with memtest.
>
> -Corey

Well I can definatly say there is a memory issue somewhere. memtest  
won't even boot. I don't even know where to go from here :(

Thanks - Joe

---------------------------------------------
Welcome to elfboot, the open sourced starter.
January 2002, Eric Biederman.
Version 1.3

rom_stream: 0xfffd0000 - 0xfffeffff
Found ELF candidate at offset 0
header_offset is 0
Try to load at offset 0x0
malloc Enter, size 32, free_mem_ptr 00018000
malloc 0x00018000
New segment addr 0x10000 size 0x17790 offset 0x1000 filesize 0x17790
(cleaned up) New segment addr 0x10000 size 0x17790 offset 0x1000  
filesize 0x17790
lb: [0x0000000000004000, 0x000000000001c000)
segment: [0x0000000000010000, 0x0000000000027790, 0x0000000000027790)
malloc Enter, size 32, free_mem_ptr 00018020
malloc 0x00018020
    late: [0x000000000001c000, 0x0000000000027790, 0x0000000000027790)
  bounce: [0x0000000007fdc000, 0x0000000007fe8000, 0x0000000007fe8000)
Loading Segment: addr: 0x0000000007fdc000 memsz: 0x000000000000c000  
filesz: 0x000000000000c000
[ 0x0000000007fdc000, 0000000007fe8000, 0x0000000007fe8000) <-  
0000000000001000
Loading Segment: addr: 0x000000000001c000 memsz: 0x000000000000b790  
filesz: 0x000000000000b790
[ 0x000000000001c000, 0000000000027790, 0x0000000000027790) <-  
000000000000d000
Loaded segments
verified segments
closed down stream
Jumping to boot code at 0x10000
entry    = 0x00010000
lb_start = 0x00004000
lb_size  = 0x00018000
adjust   = 0x07fe4000
buffer   = 0x07fd0000
      elf_boot_notes = 0x000139a0
adjusted_boot_notes = 0x07ff79a0
Unexpected Exception: -1 @ ffffffff:ffffffff - Halting
Code: -1 eflags: ffffffff
eax: ffffffff ebx: ffffffff ecx: ffffffff edx: 00018000
edi: ffffffff esi: ffffffff ebp: 0010003c esp: 00100014
--------------------------------------------------------

[ron minnich]

you might try forcing the size (in code) to 32M or some such in
hardwaremain.c and see if it works then. There's  something odd with
your ram.

ron

[Peter Stuge]

On Mon, Oct 01, 2007 at 09:50:04AM -0700, ron minnich wrote:
> you might try forcing the size (in code) to 32M or some such in
> hardwaremain.c and see if it works then.

And/or set very conservative memory timings.

//Peter

Quoting Peter Stuge :
> On Mon, Oct 01, 2007 at 09:50:04AM -0700, ron minnich wrote:
> > you might try forcing the size (in code) to 32M or some such in
> > hardwaremain.c and see if it works then.
>
> And/or set very conservative memory timings.

Not too sure how I can do this. Can you help me?

Thanks - Joe

Quoting ron minnich :
> you might try forcing the size (in code) to 32M or some such in
> hardwaremain.c and see if it works then. There's  something odd with
> your ram.
>
> ron

It won't have anything to do with the fact that:

a. It is onboard 128MB memory
b. It doesn't have a SPD module
c. It is located in the second slot not first.

This is wierd because it passes the ram_check() from auto.c earlier in  
the process just fine.

/* Check RAM. */
ram_check(0, 640 * 1024);

Thanks - Joe

[Corey Osgood]

[e-mail] wrote:
> Quoting ron minnich :
> > you might try forcing the size (in code) to 32M or some such in
> > hardwaremain.c and see if it works then. There's  something odd with
> > your ram.
> >
> > ron
>
> It won't have anything to do with the fact that:
>
> a. It is onboard 128MB memory
> b. It doesn't have a SPD module
> c. It is located in the second slot not first.

It shouldn't, no, especially not the first 2.
> This is wierd because it passes the ram_check() from auto.c earlier in  
> the process just fine.
>
> /* Check RAM. */
> ram_check(0, 640 * 1024);
>
> Thanks - Joe

All that's checking is the first 640K. To check the rest of the memory,
use ram_check(1024*1024, 1024*1024*128), starting at 1mb to avoid any
reserved areas. Make sure your ram_resource() calls also avoids those
reserved areas.

-Corey

Quoting Corey Osgood :
> [e-mail] wrote:
> > Quoting ron minnich :
> > > you might try forcing the size (in code) to 32M or some such in
> > > hardwaremain.c and see if it works then. There's  something odd with
> > > your ram.
> > >
> > > ron
> >
> > It won't have anything to do with the fact that:
> >
> > a. It is onboard 128MB memory
> > b. It doesn't have a SPD module
> > c. It is located in the second slot not first.
>
> It shouldn't, no, especially not the first 2.
> > This is wierd because it passes the ram_check() from auto.c earlier in
> > the process just fine.
> >
> > /* Check RAM. */
> > ram_check(0, 640 * 1024);
> >
> > Thanks - Joe
>
> All that's checking is the first 640K. To check the rest of the memory,
> use ram_check(1024*1024, 1024*1024*128), starting at 1mb to avoid any
> reserved areas. Make sure your ram_resource() calls also avoids those
> reserved areas.
>
> -Corey

Ok, I think I figured out what is going on here. The ram_check from  
0-640K works fine. But ram_check from 1MB-128MB fails. My DRB  
registers are set correctly, and report 128MB of memory. Why? That is  
the golden question of the year. Can anyone help out a thinning hair  
(from pulling out - stress related) guy in desperate need?

Thanks - Joe

[ron minnich]

How does ram check from 1 mb to 2 (not 128 -- 2) work? You need to
start searching in smaller numbers than 128 mb

ron

[Corey Osgood]

[e-mail] wrote:
> Quoting Corey Osgood :
> > [e-mail] wrote:
> > > Quoting ron minnich :
> > > > you might try forcing the size (in code) to 32M or some such in
> > > > hardwaremain.c and see if it works then. There's  something odd with
> > > > your ram.
> > > >
> > > > ron
> > >
> > > It won't have anything to do with the fact that:
> > >
> > > a. It is onboard 128MB memory
> > > b. It doesn't have a SPD module
> > > c. It is located in the second slot not first.
> >
> > It shouldn't, no, especially not the first 2.
> > > This is wierd because it passes the ram_check() from auto.c earlier in
> > > the process just fine.
> > >
> > > /* Check RAM. */
> > > ram_check(0, 640 * 1024);
> > >
> > > Thanks - Joe
> >
> > All that's checking is the first 640K. To check the rest of the memory,
> > use ram_check(1024*1024, 1024*1024*128), starting at 1mb to avoid any
> > reserved areas. Make sure your ram_resource() calls also avoids those
> > reserved areas.
> >
> > -Corey
>
> Ok, I think I figured out what is going on here. The ram_check from
> 0-640K works fine. But ram_check from 1MB-128MB fails. My DRB
> registers are set correctly, and report 128MB of memory. Why? That is
> the golden question of the year. Can anyone help out a thinning hair
> (from pulling out - stress related) guy in desperate need?
>
> Thanks - Joe

Where does it fail? What address(es) does it start to fail at? Does it
return junk (but semi-coherent) values or NULL/zeros? Knowing exactly
where the ram goes from good to bad could help find the start of the
problem.

-Corey

Quoting Corey Osgood :
> [e-mail] wrote:
> > Quoting Corey Osgood :
> > > [e-mail] wrote:
> > > > Quoting ron minnich :
> > > > > you might try forcing the size (in code) to 32M or some such in
> > > > > hardwaremain.c and see if it works then. There's  something odd with
> > > > > your ram.
> > > > >
> > > > > ron
> > > >
> > > > It won't have anything to do with the fact that:
> > > >
> > > > a. It is onboard 128MB memory
> > > > b. It doesn't have a SPD module
> > > > c. It is located in the second slot not first.
> > >
> > > It shouldn't, no, especially not the first 2.
> > > > This is wierd because it passes the ram_check() from auto.c earlier in
> > > > the process just fine.
> > > >
> > > > /* Check RAM. */
> > > > ram_check(0, 640 * 1024);
> > > >
> > > > Thanks - Joe
> > >
> > > All that's checking is the first 640K. To check the rest of the memory,
> > > use ram_check(1024*1024, 1024*1024*128), starting at 1mb to avoid any
> > > reserved areas. Make sure your ram_resource() calls also avoids those
> > > reserved areas.
> > >
> > > -Corey
> >
> > Ok, I think I figured out what is going on here. The ram_check from
> > 0-640K works fine. But ram_check from 1MB-128MB fails. My DRB
> > registers are set correctly, and report 128MB of memory. Why? That is
> > the golden question of the year. Can anyone help out a thinning hair
> > (from pulling out - stress related) guy in desperate need?
> >
> > Thanks - Joe
>
> Where does it fail? What address(es) does it start to fail at? Does it
> return junk (but semi-coherent) values or NULL/zeros? Knowing exactly
> where the ram goes from good to bad could help find the start of the
> problem.
>
> -Corey

Here is my ram_check from 1-128MB. It appears to fill the ram ok. But  
only returns a value of 0xffffffff. Does this mean the ram is WO  
(write only) for some reason? Thanks again for your help.

Thanks - Joe

Testing DRAM : 00100000-08000000
DRAM fill: 00100000-08000000
00100000
00110000
00120000
00130000
00140000
00150000
00160000
00170000
00180000
00190000
001a0000
001b0000
001c0000
001d0000
001e0000
001f0000
00200000
00210000
00220000
00230000
00240000
00250000
00260000
00270000
00280000
00290000
002a0000
002b0000
002c0000
002d0000
002e0000
002f0000
00300000
00310000
00320000
00330000
00340000
00350000
00360000
00370000
00380000
00390000
003a0000
003b0000
003c0000
003d0000
003e0000
003f0000
00400000
00410000
00420000
00430000
00440000
00450000
00460000
00470000
00480000
00490000
004a0000
004b0000
004c0000
004d0000
004e0000
004f0000
00500000
00510000
00520000
00530000
00540000
00550000
00560000
00570000
00580000
00590000
005a0000
005b0000
005c0000
005d0000
005e0000
005f0000
00600000
00610000
00620000
00630000
00640000
00650000
00660000
00670000
00680000
00690000
006a0000
006b0000
006c0000
006d0000
006e0000
006f0000
00700000
00710000
00720000
00730000
00740000
00750000
00760000
00770000
00780000
00790000
007a0000
007b0000
007c0000
007d0000
007e0000
007f0000
00800000
00810000
00820000
00830000
00840000
00850000
00860000
00870000
00880000
00890000
008a0000
008b0000
008c0000
008d0000
008e0000
008f0000
00900000
00910000
00920000
00930000
00940000
00950000
00960000
00970000
00980000
00990000
009a0000
009b0000
009c0000
009d0000
009e0000
009f0000
00a00000
00a10000
00a20000
00a30000
00a40000
00a50000
00a60000
00a70000
00a80000
00a90000
00aa0000
00ab0000
00ac0000
00ad0000
00ae0000
00af0000
00b00000
00b10000
00b20000
00b30000
00b40000
00b50000
00b60000
00b70000
00b80000
00b90000
00ba0000
00bb0000
00bc0000
00bd0000
00be0000
00bf0000
00c00000
00c10000
00c20000
00c30000
00c40000
00c50000
00c60000
00c70000
00c80000
00c90000
00ca0000
00cb0000
00cc0000
00cd0000
00ce0000
00cf0000
00d00000
00d10000
00d20000
00d30000
00d40000
00d50000
00d60000
00d70000
00d80000
00d90000
00da0000
00db0000
00dc0000
00dd0000
00de0000
00df0000
00e00000
00e10000
00e20000
00e30000
00e40000
00e50000
00e60000
00e70000
00e80000
00e90000
00ea0000
00eb0000
00ec0000
00ed0000
00ee0000
00ef0000
00f00000
00f10000
00f20000
00f30000
00f40000
00f50000
00f60000
00f70000
00f80000
00f90000
00fa0000
00fb0000
00fc0000
00fd0000
00fe0000
00ff0000
01000000
01010000
01020000
01030000
01040000
01050000
01060000
01070000
01080000
01090000
010a0000
010b0000
010c0000
010d0000
010e0000
010f0000
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074b0000
074c0000
074d0000
074e0000
074f0000
07500000
07510000
07520000
07530000
07540000
07550000
07560000
07570000
07580000
07590000
075a0000
075b0000
075c0000
075d0000
075e0000
075f0000
07600000
07610000
07620000
07630000
07640000
07650000
07660000
07670000
07680000
07690000
076a0000
076b0000
076c0000
076d0000
076e0000
076f0000
07700000
07710000
07720000
07730000
07740000
07750000
07760000
07770000
07780000
07790000
077a0000
077b0000
077c0000
077d0000
077e0000
077f0000
07800000
07810000
07820000
07830000
07840000
07850000
07860000
07870000
07880000
07890000
078a0000
078b0000
078c0000
078d0000
078e0000
078f0000
07900000
07910000
07920000
07930000
07940000
07950000
07960000
07970000
07980000
07990000
079a0000
079b0000
079c0000
079d0000
079e0000
079f0000
07a00000
07a10000
07a20000
07a30000
07a40000
07a50000
07a60000
07a70000
07a80000
07a90000
07aa0000
07ab0000
07ac0000
07ad0000
07ae0000
07af0000
07b00000
07b10000
07b20000
07b30000
07b40000
07b50000
07b60000
07b70000
07b80000
07b90000
07ba0000
07bb0000
07bc0000
07bd0000
07be0000
07bf0000
07c00000
07c10000
07c20000
07c30000
07c40000
07c50000
07c60000
07c70000
07c80000
07c90000
07ca0000
07cb0000
07cc0000
07cd0000
07ce0000
07cf0000
07d00000
07d10000
07d20000
07d30000
07d40000
07d50000
07d60000
07d70000
07d80000
07d90000
07da0000
07db0000
07dc0000
07dd0000
07de0000
07df0000
07e00000
07e10000
07e20000
07e30000
07e40000
07e50000
07e60000
07e70000
07e80000
07e90000
07ea0000
07eb0000
07ec0000
07ed0000
07ee0000
07ef0000
07f00000
07f10000
07f20000
07f30000
07f40000
07f50000
07f60000
07f70000
07f80000
07f90000
07fa0000
07fb0000
07fc0000
07fd0000
07fe0000
07ff0000
08000000
DRAM filled
DRAM verify: 00100000-08000000
00100000
Fail: @0x00100000 Read value=0xffffffff
Fail: @0x00100004 Read value=0xffffffff
Fail: @0x00100008 Read value=0xffffffff
Fail: @0x0010000c Read value=0xffffffff
Fail: @0x00100010 Read value=0xffffffff
Fail: @0x00100014 Read value=0xffffffff
Fail: @0x00100018 Read value=0xffffffff
Fail: @0x0010001c Read value=0xffffffff
Fail: @0x00100020 Read value=0xffffffff
Fail: @0x00100024 Read value=0xffffffff
Fail: @0x00100028 Read value=0xffffffff
Fail: @0x0010002c Read value=0xffffffff
Fail: @0x00100030 Read value=0xffffffff
Fail: @0x00100034 Read value=0xffffffff
Fail: @0x00100038 Read value=0xffffffff
Fail: @0x0010003c Read value=0xffffffff
Fail: @0x00100040 Read value=0xffffffff
Fail: @0x00100044 Read value=0xffffffff
Fail: @0x00100048 Read value=0xffffffff
Fail: @0x0010004c Read value=0xffffffff
Fail: @0x00100050 Read value=0xffffffff
Fail: @0x00100054 Read value=0xffffffff
Fail: @0x00100058 Read value=0xffffffff
Fail: @0x0010005c Read value=0xffffffff
Fail: @0x00100060 Read value=0xffffffff
Fail: @0x00100064 Read value=0xffffffff
Fail: @0x00100068 Read value=0xffffffff
Fail: @0x0010006c Read value=0xffffffff
Fail: @0x00100070 Read value=0xffffffff
Fail: @0x00100074 Read value=0xffffffff
Fail: @0x00100078 Read value=0xffffffff
Fail: @0x0010007c Read value=0xffffffff
Fail: @0x00100080 Read value=0xffffffff
Fail: @0x00100084 Read value=0xffffffff
Fail: @0x00100088 Read value=0xffffffff
Fail: @0x0010008c Read value=0xffffffff
Fail: @0x00100090 Read value=0xffffffff
Fail: @0x00100094 Read value=0xffffffff
Fail: @0x00100098 Read value=0xffffffff
Fail: @0x0010009c Read value=0xffffffff
Fail: @0x001000a0 Read value=0xffffffff
Fail: @0x001000a4 Read value=0xffffffff
Fail: @0x001000a8 Read value=0xffffffff
Fail: @0x001000ac Read value=0xffffffff
Fail: @0x001000b0 Read value=0xffffffff
Fail: @0x001000b4 Read value=0xffffffff
Fail: @0x001000b8 Read value=0xffffffff
Fail: @0x001000bc Read value=0xffffffff
Fail: @0x001000c0 Read value=0xffffffff
Fail: @0x001000c4 Read value=0xffffffff
Fail: @0x001000c8 Read value=0xffffffff
Fail: @0x001000cc Read value=0xffffffff
Fail: @0x001000d0 Read value=0xffffffff
Fail: @0x001000d4 Read value=0xffffffff
Fail: @0x001000d8 Read value=0xffffffff
Fail: @0x001000dc Read value=0xffffffff
Fail: @0x001000e0 Read value=0xffffffff
Fail: @0x001000e4 Read value=0xffffffff
Fail: @0x001000e8 Read value=0xffffffff
Fail: @0x001000ec Read value=0xffffffff
Fail: @0x001000f0 Read value=0xffffffff
Fail: @0x001000f4 Read value=0xffffffff
Fail: @0x001000f8 Read value=0xffffffff
Fail: @0x001000fc Read value=0xffffffff
Fail: @0x00100100 Read value=0xffffffff
Fail: @0x00100104 Read value=0xffffffff
Fail: @0x00100108 Read value=0xffffffff
Fail: @0x0010010c Read value=0xffffffff
Fail: @0x00100110 Read value=0xffffffff
Fail: @0x00100114 Read value=0xffffffff
Fail: @0x00100118 Read value=0xffffffff
Fail: @0x0010011c Read value=0xffffffff
Fail: @0x00100120 Read value=0xffffffff
Fail: @0x00100124 Read value=0xffffffff
Fail: @0x00100128 Read value=0xffffffff
Fail: @0x0010012c Read value=0xffffffff
Fail: @0x00100130 Read value=0xffffffff
Fail: @0x00100134 Read value=0xffffffff
Fail: @0x00100138 Read value=0xffffffff
Fail: @0x0010013c Read value=0xffffffff
Fail: @0x00100140 Read value=0xffffffff
Fail: @0x00100144 Read value=0xffffffff
Fail: @0x00100148 Read value=0xffffffff
Fail: @0x0010014c Read value=0xffffffff
Fail: @0x00100150 Read value=0xffffffff
Fail: @0x00100154 Read value=0xffffffff
Fail: @0x00100158 Read value=0xffffffff
Fail: @0x0010015c Read value=0xffffffff
Fail: @0x00100160 Read value=0xffffffff
Fail: @0x00100164 Read value=0xffffffff
Fail: @0x00100168 Read value=0xffffffff
Fail: @0x0010016c Read value=0xffffffff
Fail: @0x00100170 Read value=0xffffffff
Fail: @0x00100174 Read value=0xffffffff
Fail: @0x00100178 Read value=0xffffffff
Fail: @0x0010017c Read value=0xffffffff
Fail: @0x00100180 Read value=0xffffffff
Fail: @0x00100184 Read value=0xffffffff
Fail: @0x00100188 Read value=0xffffffff
Fail: @0x0010018c Read value=0xffffffff
Fail: @0x00100190 Read value=0xffffffff
Fail: @0x00100194 Read value=0xffffffff
Fail: @0x00100198 Read value=0xffffffff
Fail: @0x0010019c Read value=0xffffffff
Fail: @0x001001a0 Read value=0xffffffff
Fail: @0x001001a4 Read value=0xffffffff
Fail: @0x001001a8 Read value=0xffffffff
Fail: @0x001001ac Read value=0xffffffff
Fail: @0x001001b0 Read value=0xffffffff
Fail: @0x001001b4 Read value=0xffffffff
Fail: @0x001001b8 Read value=0xffffffff
Fail: @0x001001bc Read value=0xffffffff
Fail: @0x001001c0 Read value=0xffffffff
Fail: @0x001001c4 Read value=0xffffffff
Fail: @0x001001c8 Read value=0xffffffff
Fail: @0x001001cc Read value=0xffffffff
Fail: @0x001001d0 Read value=0xffffffff
Fail: @0x001001d4 Read value=0xffffffff
Fail: @0x001001d8 Read value=0xffffffff
Fail: @0x001001dc Read value=0xffffffff
Fail: @0x001001e0 Read value=0xffffffff
Fail: @0x001001e4 Read value=0xffffffff
Fail: @0x001001e8 Read value=0xffffffff
Fail: @0x001001ec Read value=0xffffffff
Fail: @0x001001f0 Read value=0xffffffff
Fail: @0x001001f4 Read value=0xffffffff
Fail: @0x001001f8 Read value=0xffffffff
Fail: @0x001001fc Read value=0xffffffff
Fail: @0x00100200 Read value=0xffffffff
Fail: @0x00100204 Read value=0xffffffff
Fail: @0x00100208 Read value=0xffffffff
Fail: @0x0010020c Read value=0xffffffff
Fail: @0x00100210 Read value=0xffffffff
Fail: @0x00100214 Read value=0xffffffff
Fail: @0x00100218 Read value=0xffffffff
Fail: @0x0010021c Read value=0xffffffff
Fail: @0x00100220 Read value=0xffffffff
Fail: @0x00100224 Read value=0xffffffff
Fail: @0x00100228 Read value=0xffffffff
Fail: @0x0010022c Read value=0xffffffff
Fail: @0x00100230 Read value=0xffffffff
Fail: @0x00100234 Read value=0xffffffff
Fail: @0x00100238 Read value=0xffffffff
Fail: @0x0010023c Read value=0xffffffff
Fail: @0x00100240 Read value=0xffffffff
Fail: @0x00100244 Read value=0xffffffff
Fail: @0x00100248 Read value=0xffffffff
Fail: @0x0010024c Read value=0xffffffff
Fail: @0x00100250 Read value=0xffffffff
Fail: @0x00100254 Read value=0xffffffff
Fail: @0x00100258 Read value=0xffffffff
Fail: @0x0010025c Read value=0xffffffff
Fail: @0x00100260 Read value=0xffffffff
Fail: @0x00100264 Read value=0xffffffff
Fail: @0x00100268 Read value=0xffffffff
Fail: @0x0010026c Read value=0xffffffff
Fail: @0x00100270 Read value=0xffffffff
Fail: @0x00100274 Read value=0xffffffff
Fail: @0x00100278 Read value=0xffffffff
Fail: @0x0010027c Read value=0xffffffff
Fail: @0x00100280 Read value=0xffffffff
Fail: @0x00100284 Read value=0xffffffff
Fail: @0x00100288 Read value=0xffffffff
Fail: @0x0010028c Read value=0xffffffff
Fail: @0x00100290 Read value=0xffffffff
Fail: @0x00100294 Read value=0xffffffff
Fail: @0x00100298 Read value=0xffffffff
Fail: @0x0010029c Read value=0xffffffff
Fail: @0x001002a0 Read value=0xffffffff
Fail: @0x001002a4 Read value=0xffffffff
Fail: @0x001002a8 Read value=0xffffffff
Fail: @0x001002ac Read value=0xffffffff
Fail: @0x001002b0 Read value=0xffffffff
Fail: @0x001002b4 Read value=0xffffffff
Fail: @0x001002b8 Read value=0xffffffff
Fail: @0x001002bc Read value=0xffffffff
Fail: @0x001002c0 Read value=0xffffffff
Fail: @0x001002c4 Read value=0xffffffff
Fail: @0x001002c8 Read value=0xffffffff
Fail: @0x001002cc Read value=0xffffffff
Fail: @0x001002d0 Read value=0xffffffff
Fail: @0x001002d4 Read value=0xffffffff
Fail: @0x001002d8 Read value=0xffffffff
Fail: @0x001002dc Read value=0xffffffff
Fail: @0x001002e0 Read value=0xffffffff
Fail: @0x001002e4 Read value=0xffffffff
Fail: @0x001002e8 Read value=0xffffffff
Fail: @0x001002ec Read value=0xffffffff
Fail: @0x001002f0 Read value=0xffffffff
Fail: @0x001002f4 Read value=0xffffffff
Fail: @0x001002f8 Read value=0xffffffff
Fail: @0x001002fc Read value=0xffffffff
Fail: @0x00100300 Read value=0xffffffff
Fail: @0x00100304 Read value=0xffffffff
Fail: @0x00100308 Read value=0xffffffff
Fail: @0x0010030c Read value=0xffffffff
Fail: @0x00100310 Read value=0xffffffff
Fail: @0x00100314 Read value=0xffffffff
Fail: @0x00100318 Read value=0xffffffff
Fail: @0x0010031c Read value=0xffffffff
Fail: @0x00100320 Read value=0xffffffff
Fail: @0x00100324 Read value=0xffffffff
Fail: @0x00100328 Read value=0xffffffff
Fail: @0x0010032c Read value=0xffffffff
Fail: @0x00100330 Read value=0xffffffff
Fail: @0x00100334 Read value=0xffffffff
Fail: @0x00100338 Read value=0xffffffff
Fail: @0x0010033c Read value=0xffffffff
Fail: @0x00100340 Read value=0xffffffff
Fail: @0x00100344 Read value=0xffffffff
Fail: @0x00100348 Read value=0xffffffff
Fail: @0x0010034c Read value=0xffffffff
Fail: @0x00100350 Read value=0xffffffff
Fail: @0x00100354 Read value=0xffffffff
Fail: @0x00100358 Read value=0xffffffff
Fail: @0x0010035c Read value=0xffffffff
Fail: @0x00100360 Read value=0xffffffff
Fail: @0x00100364 Read value=0xffffffff
Fail: @0x00100368 Read value=0xffffffff
Fail: @0x0010036c Read value=0xffffffff
Fail: @0x00100370 Read value=0xffffffff
Fail: @0x00100374 Read value=0xffffffff
Fail: @0x00100378 Read value=0xffffffff
Fail: @0x0010037c Read value=0xffffffff
Fail: @0x00100380 Read value=0xffffffff
Fail: @0x00100384 Read value=0xffffffff
Fail: @0x00100388 Read value=0xffffffff
Fail: @0x0010038c Read value=0xffffffff
Fail: @0x00100390 Read value=0xffffffff
Fail: @0x00100394 Read value=0xffffffff
Fail: @0x00100398 Read value=0xffffffff
Fail: @0x0010039c Read value=0xffffffff
Fail: @0x001003a0 Read value=0xffffffff
Fail: @0x001003a4 Read value=0xffffffff
Fail: @0x001003a8 Read value=0xffffffff
Fail: @0x001003ac Read value=0xffffffff
Fail: @0x001003b0 Read value=0xffffffff
Fail: @0x001003b4 Read value=0xffffffff
Fail: @0x001003b8 Read value=0xffffffff
Fail: @0x001003bc Read value=0xffffffff
Fail: @0x001003c0 Read value=0xffffffff
Fail: @0x001003c4 Read value=0xffffffff
Fail: @0x001003c8 Read value=0xffffffff
Fail: @0x001003cc Read value=0xffffffff
Fail: @0x001003d0 Read value=0xffffffff
Fail: @0x001003d4 Read value=0xffffffff
Fail: @0x001003d8 Read value=0xffffffff
Fail: @0x001003dc Read value=0xffffffff
Fail: @0x001003e0 Read value=0xffffffff
Fail: @0x001003e4 Read value=0xffffffff
Fail: @0x001003e8 Read value=0xffffffff
Fail: @0x001003ec Read value=0xffffffff
Fail: @0x001003f0 Read value=0xffffffff
Fail: @0x001003f4 Read value=0xffffffff
Fail: @0x001003f8 Read value=0xffffffff
Fail: @0x001003fc Read value=0xffffffff
Fail: @0x00100400 Read value=0xffffffff
Aborting.
00100400
DRAM did _NOT_ verify!

[Stefan Reinauer]

* [e-mail]  [071004 06:26]:
> Here is my ram_check from 1-128MB. It appears to fill the ram ok. But  
> only returns a value of 0xffffffff. Does this mean the ram is WO  
> (write only) for some reason? Thanks again for your help.

Do you have several banks? Do you send your ram init commands to all
these banks, or just the first?

Quoting Stefan Reinauer :
> [e-mail]  [071004 06:26]:
> > Here is my ram_check from 1-128MB. It appears to fill the ram ok. But
> > only returns a value of 0xffffffff. Does this mean the ram is WO
> > (write only) for some reason? Thanks again for your help.
>
> Do you have several banks? Do you send your ram init commands to all
> these banks, or just the first?

There is only one bank of onboard memory. I am starting to wonder if  
the memory isn't initializing correctly. But why would only part  
(0-640KB) of the memory initialize and not the rest??

Thanks - Joe

Quoting [e-mail]:
> Quoting Stefan Reinauer :
> > [e-mail]  [071004 06:26]:
> > > Here is my ram_check from 1-128MB. It appears to fill the ram ok. But
> > > only returns a value of 0xffffffff. Does this mean the ram is WO
> > > (write only) for some reason? Thanks again for your help.
> >
> > Do you have several banks? Do you send your ram init commands to all
> > these banks, or just the first?
>
> There is only one bank of onboard memory. I am starting to wonder if
> the memory isn't initializing correctly. But why would only part
> (0-640KB) of the memory initialize and not the rest??

So I changed around my do_ram_command() in raminit.c a bit and set it  
up so it will send the ram commands to any/all dimms found. I think  
this will work alot better. I will report back after I test it. I have  
attached it if you would like to check it out.

Thanks - Joe

[LinuxBIOS] JEDEC Memory initialization

Does anyone know the JEDEC document number that talks about memory  
initialization??

Thanks - Joe

[LinuxBIOS] JEDEC Memory initialization

[Tom Sylla]

JESD79-2C is for DDR2. I think it was JESD79-D for DDR

On 10/5/07, [e-mail]  wrote:
> Does anyone know the JEDEC document number that talks about memory
> initialization??
>
> Thanks - Joe

[Corey Osgood]

[e-mail] wrote:
> Here is my ram_check from 1-128MB. It appears to fill the ram ok. But
> only returns a value of 0xffffffff. Does this mean the ram is WO
> (write only) for some reason? Thanks again for your help.

Okay, this is mostly a shot in the dark, but it's the only thing I can
find that might cause something like this. I'm looking at the AGP size
register (APSIZE, 0xb4) in the datasheet, and the default value is 0x00,
which is 256MB (!!). I also don't see anywhere that AGP has to be
explicitly enabled, it looks like it's enabled by default (yes, I see
AGPCMD, but it says cycles will be ignored, not that the device is
actually disabled and freeing the aperture memory).

Long story short, try setting the AGP aperture to 32MB and moving the
aperture base (APBASE, 0x10-13) to somewhere else, preferably wherever
the stock bios moves it to. Even if it's not the root cause, it'll get
it out of the way for later.

-Corey

Quoting Corey Osgood :
> [e-mail] wrote:
> > Here is my ram_check from 1-128MB. It appears to fill the ram ok. But
> > only returns a value of 0xffffffff. Does this mean the ram is WO
> > (write only) for some reason? Thanks again for your help.
>
> Okay, this is mostly a shot in the dark, but it's the only thing I can
> find that might cause something like this. I'm looking at the AGP size
> register (APSIZE, 0xb4) in the datasheet, and the default value is 0x00,
> which is 256MB (!!). I also don't see anywhere that AGP has to be
> explicitly enabled, it looks like it's enabled by default (yes, I see
> AGPCMD, but it says cycles will be ignored, not that the device is
> actually disabled and freeing the aperture memory).
>
> Long story short, try setting the AGP aperture to 32MB and moving the
> aperture base (APBASE, 0x10-13) to somewhere else, preferably wherever
> the stock bios moves it to. Even if it's not the root cause, it'll get
> it out of the way for later.
>
> -Corey

Those registers also say: "This register is Read Only when either the  
Intel 830M or Intel 830MG internal graphics device is used."

Does that matter? In the original bios these are set to zero.

For IGD the Graphics Memory Aperture Size is set wih bit 0 in GCC1.

Thanks - Joe

Thanks - Joe

> > Okay, this is mostly a shot in the dark, but it's the only thing I can
> > find that might cause something like this. I'm looking at the AGP size
> > register (APSIZE, 0xb4) in the datasheet, and the default value is 0x00,
> > which is 256MB (!!). I also don't see anywhere that AGP has to be
> > explicitly enabled, it looks like it's enabled by default (yes, I see
> > AGPCMD, but it says cycles will be ignored, not that the device is
> > actually disabled and freeing the aperture memory).
> >
> > Long story short, try setting the AGP aperture to 32MB and moving the
> > aperture base (APBASE, 0x10-13) to somewhere else, preferably wherever
> > the stock bios moves it to. Even if it's not the root cause, it'll get
> > it out of the way for later.
> >
> > -Corey

Corey, After scatching my head for days (hair thinning even more) I  
think you may be onto something. I have tried changing the values in  
APBASE before with no luck and I think this is why:

1. APSIZE Bits[5:3] need to be set first to 111 too allow APBASE  
Bits[27:25] to become R/W.

2. Now we can set APBASE Bits[27:25] to 111 for 32MB Aperture.

3. I noticed this in my bootlogs:

PCI: 00:00.0 register 10(00000008), read-only ignoring it

Which is the APBASE register. I think LB is tring to configure an  
address range for it but not able to because the address range is set  
to read only.

4. Set register GCC0 Bit 9 to 1. This enables access to the Aperture  
allowing LB to configure an address range.

I wish there was a way to just disable the Aperture all togethor for  
now but the i82830 is not designed to run in headless mode (no  
graphics). I will try this out and report back.

Thanks - Joe

> Corey, After scatching my head for days (hair thinning even more) I
> think you may be onto something. I have tried changing the values in
> APBASE before with no luck and I think this is why:
> APSIZE Bits[5:3] need to be set first to 111 too allow APBASE
>
> Bits[27:25] to become R/W.

This register sets ok
> Now we can set APBASE Bits[27:25] to 111 for 32MB Aperture.

Nope not able to write to this register. Why??
> I noticed this in my bootlogs:
>
> PCI: 00:00.0 register 10(00000008), read-only ignoring it
>
> Which is the APBASE register. I think LB is tring to configure an
> address range for it but not able to because the address range is set
> to read only.

Boot log still says this:-(
> Set register GCC0 Bit 9 to 1. This enables access to the Aperture
>
> allowing LB to configure an address range.

Not able to set this bit eithor.
> I wish there was a way to just disable the Aperture all togethor for
> now but the i82830 is not designed to run in headless mode (no
> graphics). I will try this out and report back.

I don't know where to go from here..

Thanks - Joe

Northbridge following SDRAM init:
PCI: 00:00.00
00: 86 80 75 35 06 00 10 00 04 00 00 06 00 00 00 00
10: 08 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
20: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
30: 00 00 00 00 40 00 00 00 00 00 00 00 00 00 00 00
40: 09 00 05 01 00 00 00 00 00 00 00 00 02 28 00 0e
50: 72 A0 20 00 00 00 00 00 00 30 33 33 33 33 33 33
60: 00 00 04 04 00 00 00 00 00 00 00 00 00 00 00 00
70: ff f1 ff ff 00 00 00 00 10 00 00 00 70 02 00 20
80: 00 00 00 00 00 00 00 00 00 d0 00 40 00 00 00 00
90: 02 38 00 00 00 00 00 00 00 00 00 00 00 00 00 00
a0: 02 00 20 00 17 02 00 1f 00 00 00 00 00 00 00 00
b0: 00 00 00 00 38 00 00 00 00 00 00 00 00 00 00 00
c0: 00 54 0e 41 a2 99 01 00 c0 00 00 00 00 00 00 00
d0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
e0: 00 00 00 00 00 00 00 00 00 00 00 00 09 c9 9f fc
f0: 11 11 01 00 00 00 0b 05 34 d6 30 cf 22 cf 23 cf
Testing DRAM : 00100000-00200000
DRAM fill: 00100000-00200000
00100000
00110000
00120000
00130000
00140000
00150000
00160000
00170000
00180000
00190000
001a0000
001b0000
001c0000
001d0000
001e0000
001f0000
00200000
DRAM filled
DRAM verify: 00100000-00200000
00100000
Fail: @0x00100000 Read value=0xffffffff
..................
Fail: @0x00100400 Read value=0xffffffff
Aborting.

00100400
DRAM did _NOT_ verify!

> Long story short, try setting the AGP aperture to 32MB and moving the
> aperture base (APBASE, 0x10-13) to somewhere else, preferably wherever
> the stock bios moves it to. Even if it's not the root cause, it'll get
> it out of the way for later.
>
> -Corey

It looks like the original bios alocates the memory region 0xf0000000  
- 0xf7ffffff for the Aperture how would I force LinuxBIOS to do this??
Thanks - Joe

[ron minnich]

On 10/1/07, [e-mail]  wrote:
> c. It is located in the second slot not first.

hmm. could this second slot somehow have a different base physical
address? unlikely but this is getting confusing.

ron

Quoting ron minnich :
> On 10/1/07, [e-mail]  wrote:
> > c. It is located in the second slot not first.
>
> hmm. could this second slot somehow have a different base physical
> address? unlikely but this is getting confusing.
>
> ron

I don't think so. Your telling me. I am so confused right now I'm  
starting to get a migrane. I can't for the life of me figure out why  
this is choking. Everything seems to be ok right up to the  
jmp_to_elf_entry() function. Then it chokes at the assembly part. Does  
that make sense??

Thanks - Joe

[Jordan Crouse]

On 01/10/07 21:06 -0400, [e-mail] wrote:
> Quoting ron minnich :
> > On 10/1/07, [e-mail]  wrote:
> > > c. It is located in the second slot not first.
> >
> > hmm. could this second slot somehow have a different base physical
> > address? unlikely but this is getting confusing.
> >
> > ron
>
> I don't think so. Your telling me. I am so confused right now I'm  
> starting to get a migrane. I can't for the life of me figure out why  
> this is choking. Everything seems to be ok right up to the  
> jmp_to_elf_entry() function. Then it chokes at the assembly part. Does  
> that make sense??

Absolutely - if your memory is hosed, this will be the first place that
you'll run afowl of it, especially when it comes to the top of memory.
Because whats happening at this point is that LinuxBIOS is copying some
part of itself to the top of memory to make room for the payload.  If
your memory map is wierd, then this will easily be the first place where
it will be exposed.

Jordan

Quoting Jordan Crouse :
> On 01/10/07 21:06 -0400, [e-mail] wrote:
> > Quoting ron minnich :
> > > On 10/1/07, [e-mail]  wrote:
> > > > c. It is located in the second slot not first.
> > >
> > > hmm. could this second slot somehow have a different base physical
> > > address? unlikely but this is getting confusing.
> > >
> > > ron
> >
> > I don't think so. Your telling me. I am so confused right now I'm
> > starting to get a migrane. I can't for the life of me figure out why
> > this is choking. Everything seems to be ok right up to the
> > jmp_to_elf_entry() function. Then it chokes at the assembly part. Does
> > that make sense??
>
> Absolutely - if your memory is hosed, this will be the first place that
> you'll run afowl of it, especially when it comes to the top of memory.
> Because whats happening at this point is that LinuxBIOS is copying some
> part of itself to the top of memory to make room for the payload.  If
> your memory map is wierd, then this will easily be the first place where
> it will be exposed.
>
> Jordan

LinuxBIOS does get copied to TOM? From looking at the code it just  
looks like it just doubles LB's size and then copies it there (bounce  
buffer). If it is getting copied to TOM that explains everything. The  
Internal graphics is supposed to pre-allocate memory from TOM down.  
 From the i82830 datasheet:

--------------------------------------------
These Register Bits control the theft of memory from Main Memory space  
for use as Graphics memory. The memory for TSEG is pre-allocated first  
and then the Graphics memory is pre-allocated. An example of this  
theft mechanism is:

TOM equal 64 MB,
TSEG selected as 512 KB in size,
Graphics memory selected as 1 MB in size
General System RAM available in system = 62.5 MB
General System RAM Range             00000000h to 03E7FFFFh
TSEG Address Range                   03F80000h to 03FFFFFFh
TSEG pre-allocated from              03F80000h to 03FFFFFFh
Graphics memory pre-allocated from   03E80000h to 03F7FFFFh
-----------------------------------------------

I don't have TSEG enabled though. I wonder if I did though, it would  
give LB extra space for it's bounce buffer?? Does this make any sense?

Thanks - Joe

[Peter Stuge]

On Sat, Sep 29, 2007 at 05:02:45PM -0400, [e-mail] wrote:
> > Did you succeed loading any other payloads? memtest?
>
> I have just been using /etc/hosts so far. I tried filo and this is
> what happens. Should I try memtest first?

Yes. Until memtest works and finds no errors, RAM is not working.

//Peter

Quoting Peter Stuge :
> On Sat, Sep 29, 2007 at 05:02:45PM -0400, [e-mail] wrote:
> > > Did you succeed loading any other payloads? memtest?
> >
> > I have just been using /etc/hosts so far. I tried filo and this is
> > what happens. Should I try memtest first?
>
> Yes. Until memtest works and finds no errors, RAM is not working.
>
> //Peter

I don't see on the LB site how to build memtest as a payload. How do I  
do this?

Thanks - Joe

[Corey Osgood]

[e-mail] wrote:
> Quoting Peter Stuge :
> > On Sat, Sep 29, 2007 at 05:02:45PM -0400, [e-mail] wrote:
> > > > Did you succeed loading any other payloads? memtest?
> > >
> > > I have just been using /etc/hosts so far. I tried filo and this is
> > > what happens. Should I try memtest first?
> >
> > Yes. Until memtest works and finds no errors, RAM is not working.
> >
> > //Peter
>
> I don't see on the LB site how to build memtest as a payload. How do I  
> do this?
>
> Thanks - Joe

Just build memtest and use the resulting "memtest" (not memtest.bin) as
your payload. Way simpler then it's supposed to be.

-Corey

[Uwe Hermann]

On Sun, Sep 30, 2007 at 04:20:24PM -0400, Corey Osgood wrote:
> Just build memtest and use the resulting "memtest" (not memtest.bin) as
> your payload. Way simpler then it's supposed to be.

That, and enable serial support in memtest, you'll need/want that to
get the output on the serial console.

Uwe.