RE: XSysAce driver cant mount DOS part

Hi, 

Yes, I got it from here.
http://www.cs.york.ac.uk/rtslab/demos/amos/xupv2pro/patches/linuxppc-2.6.17.1-sysace-1.2.patch

The 'official' one, yes?

Thanks,

Joe Robertson
Joseph.Robertson@sanmina-sci.com



-----Original Message-----
From: urwithsudheer [mailto:urwithsudheer@gmail.com]
Sent: Fri 7/13/2007 4:25 AM
To: Robertson, Joseph M.
Cc: linuxppc-embedded@ozlabs.org
Subject: Re: XSysAce driver cant mount DOS part
 
Hi

Robertson, Joseph M. wrote:

Hi all,

I've been workig with this for a while but have made no progress.
Today I got the latest XSysAce patch for kernel 2.6.17.1 and applied 
it to get clean code. 
I inherited the previous code from another developer.

Can you send the link to xsysace driver source code from where you obtained.


Thanks
Sudheer

My problem is that mounting the DOS partition always fails in a short 
time with a kernel oops.

ECAU-9999:# Oops: kernel access of bad area, sig: 11 
[#1]                      
PREEMPT                                                                        
NIP: C00701C8 LR: C0070C18 CTR: 
00000000                                       
REGS: c0391dd0 TRAP: 0300   Not tainted  
(2.6.17.1)                            
MSR: 00021030 <ME,IR,DR>  CR: 22028082  XER: 
0000000B                          
DAR: 00000000, DSISR: 
00800000                                                 
TASK = c0373030[4] 'events/0' THREAD: 
c0390000                                 
GPR00: 00000080 C0391E80 C0373030 C02CAC00 C0E03000 C0E03154 00000000 
C02CAC00 
GPR08: 00200200 00000000 00100100 00000000 00051A4B FFFFDE60 03BD4900 
007FFF3B 
GPR16: 00400000 00000001 FFFFFFFF 03BCDC58 00000000 007FFF00 00000002 
C0280000 
GPR24: C0363A10 0000000B 00000000 00000000 00000000 C02CAC00 C035ED20 
C0E03000 
NIP [C00701C8] 
free_block+0x8c/0x138                                           
LR [C0070C18] 
drain_array+0xb8/0x124                                           
Call Trace:                                  

The setup:
My own build system.
Kernel 2.6.17.1 with lots of xilinx stuff, eth, i2c, xsysace.  
Crosscompiled for PPC405.
Latest, clean XSysAce code.  mods:  major hardcoded to = 125.  Polled 
mode.
CF:  3 partitions,
1:  DOS FAT16
2:  Ext2  main
3:  Ext2  rescue

This build boots up fine, mounts a ext2 as root fine.  I can also 
mount the rescue partition with no problems.

Does anyone have any pointers of where I should look for problems?

My next step is to go and set it up for interrupt service and see if 
that changes anything.

Thanks,

Joe Robertson
Joseph.Robertson@sanmina-sci.com


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