[OpenBIOS] Sparc64 OpenBIOS

[Nick Couchman]

>>> On 2009/11/17 at 08:12, Tarl Neustaedter <Tarl.Neustaedter at Sun.COM> wrote: 
> Yup. The seek failed indicates it wasn't able to read something it 
> needed to read. So the next step is to do
> the above, only instead of calling mount-root, figure out what 
> mount-root has in it, and execute those one-by-one at the ok prompt. Or 
> use the debugger to single step through it.

Here's that output:

0 > mount-root 
: mount-root  ( Empty ) 
00000000ffe35d28: boot-dev$  ( ffe357a8 6 ) 
00000000ffe35d30: fs-pkg$  ( ffe357a8 6 ffe317c0 10 ) 
00000000ffe35d38: $open-package 
seek failed
 ( 0 ) 
00000000ffe35d40: (lit)  ( 0 ffe35728 ) 
00000000ffe35d50: (to)  ( Empty ) 
00000000ffe35d58: fs-ih  ( 0 ) 
00000000ffe35d60: 0=  ( ffffffffffffffff ) 
00000000ffe35d68: do?branch  ( Empty ) 
00000000ffe35d78: (")  ( ffe35d88 10 ) 
00000000ffe35d98: die 
Can't mount root
 Aborted.
0 > 

So, I added debug for "$open-package" which led to "open-package", which I also debugged - here's the output from mount-root after turning on all that debugging:

0 > mount-root 
: mount-root  ( Empty ) 
00000000ffe35d28: boot-dev$  ( ffe357a8 6 ) 
00000000ffe35d30: fs-pkg$  ( ffe357a8 6 ffe317c0 10 ) 
00000000ffe35d38: $open-package 
: $open-package  ( ffe357a8 6 ffe317c0 10 ) 
00000000ffe13690: find-package  ( ffe357a8 6 ffe32558 ffffffffffffffff ) 
00000000ffe13698: do?branch  ( ffe357a8 6 ffe32558 ) 
00000000ffe136a8: open-package 
: open-package  ( ffe357a8 6 ffe32558 ) 
00000000ffe13548: create-instance  ( ffe357a8 6 ffe4ad30 ) 
00000000ffe13550: dup  ( ffe357a8 6 ffe4ad30 ffe4ad30 ) 
00000000ffe13558: 0=  ( ffe357a8 6 ffe4ad30 0 ) 
00000000ffe13560: do?branch  ( ffe357a8 6 ffe4ad30 ) 
00000000ffe13588: >r  ( ffe357a8 6 ) 
00000000ffe13590: strdup  ( ffe493a0 6 ) 
00000000ffe13598: r@  ( ffe493a0 6 ffe4ad30 ) 
00000000ffe135a0: >in.arguments  ( ffe493a0 6 ffe4ad78 ) 
00000000ffe135a8: 2!  ( Empty ) 
00000000ffe135b0: (lit)  ( ffe135e0 ) 
00000000ffe135c0: (lit)  ( ffe135e0 4 ) 
00000000ffe135d0: dobranch  ( ffe135e0 4 ) 
00000000ffe135e8: r@  ( ffe135e0 4 ffe4ad30 ) 
00000000ffe135f0: (lit)  ( ffe135e0 4 ffe4ad30 ffe13310 ) 
00000000ffe13600: catch 
: open-package  ( 1 ffe2fe38 ffe4b1d8 ffe4b548 0 0 ffe2b238 ) 
00000000ffe13548: create-instance  ( 1 ffe2fe38 ffe4b1d8 ffe4b548 0 0 ffe4b558 ) 
00000000ffe13550: dup  ( 1 ffe2fe38 ffe4b1d8 ffe4b548 0 0 ffe4b558 ffe4b558 ) 
00000000ffe13558: 0=  ( 1 ffe2fe38 ffe4b1d8 ffe4b548 0 0 ffe4b558 0 ) 
00000000ffe13560: do?branch  ( 1 ffe2fe38 ffe4b1d8 ffe4b548 0 0 ffe4b558 ) 
00000000ffe13588: >r  ( 1 ffe2fe38 ffe4b1d8 ffe4b548 0 0 ) 
00000000ffe13590: strdup  ( 1 ffe2fe38 ffe4b1d8 ffe4b548 0 0 ) 
00000000ffe13598: r@  ( 1 ffe2fe38 ffe4b1d8 ffe4b548 0 0 ffe4b558 ) 
00000000ffe135a0: >in.arguments  ( 1 ffe2fe38 ffe4b1d8 ffe4b548 0 0 ffe4b5a0 ) 
00000000ffe135a8: 2!  ( 1 ffe2fe38 ffe4b1d8 ffe4b548 ) 
00000000ffe135b0: (lit)  ( 1 ffe2fe38 ffe4b1d8 ffe4b548 ffe135e0 ) 
00000000ffe135c0: (lit)  ( 1 ffe2fe38 ffe4b1d8 ffe4b548 ffe135e0 4 ) 
00000000ffe135d0: dobranch  ( 1 ffe2fe38 ffe4b1d8 ffe4b548 ffe135e0 4 ) 
00000000ffe135e8: r@  ( 1 ffe2fe38 ffe4b1d8 ffe4b548 ffe135e0 4 ffe4b558 ) 
00000000ffe135f0: (lit)  ( 1 ffe2fe38 ffe4b1d8 ffe4b548 ffe135e0 4 ffe4b558 ffe13310 ) 
00000000ffe13600: catch  ( 1 ffe2fe38 ffe4b1d8 ffe4b548 ffffffffffffffff 0 ) 
00000000ffe13608: do?branch  ( 1 ffe2fe38 ffe4b1d8 ffe4b548 ffffffffffffffff ) 
00000000ffe13628: do?branch  ( 1 ffe2fe38 ffe4b1d8 ffe4b548 ) 
00000000ffe13638: r>  ( 1 ffe2fe38 ffe4b1d8 ffe4b548 ffe4b558 ) 
00000000ffe13640: dobranch  ( 1 ffe2fe38 ffe4b1d8 ffe4b548 ffe4b558 ) 
00000000ffe13668: (semis) 
[ Finished open-package ] 
seek failed
 ( 8006000 800 4 ffffffffffffffff ) 
00000000ffe13608: do?branch  ( 8006000 800 4 ) 
00000000ffe13618: 3drop  ( Empty ) 
00000000ffe13620: false  ( 0 ) 
00000000ffe13628: do?branch  ( Empty ) 
00000000ffe13650: r>  ( ffe4ad30 ) 
00000000ffe13658: destroy-instance  ( Empty ) 
00000000ffe13660: false  ( 0 ) 
00000000ffe13668: (semis) 
[ Finished open-package ]  ( 0 ) 
00000000ffe136b0: dobranch  ( 0 ) 
00000000ffe136d0: (semis) 
[ Finished $open-package ]  ( 0 ) 
00000000ffe35d40: (lit)  ( 0 ffe35728 ) 
00000000ffe35d50: (to)  ( Empty ) 
00000000ffe35d58: fs-ih  ( 0 ) 
00000000ffe35d60: 0=  ( ffffffffffffffff ) 
00000000ffe35d68: do?branch  ( Empty ) 
00000000ffe35d78: (")  ( ffe35d88 10 ) 
00000000ffe35d98: die 
Can't mount root
 Aborted.

Based on that output, it's hard for me to tell what about "open-package'" failed


> 
> Somewhere in there either you are coming up with some bad disk 
> addresses, or the HBA driver is failing a read. The alternative would be 
> to debug the HBA driver and see what disk reads you are being asked to 
> do, and try to trace backwards.

I'm already headed down this path, so I'll stick there, now, unless you have some hints for going about debugging the HBA driver, which I would assume I would do from the Qemu source code side...

-Nick


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