XSysAce driver cant mount DOS part
Robertson, Joseph M.
joseph.robertson at sanmina-sci.com
Tue Jul 17 02:19:43 EST 2007
Hi,
Thanks for your insight into the older code.
I tried your fix and came up with this.
I have run e2fsck and the cf card comes up clean with that.
heres a boot sequence:
Initializing Cryptographic API
io scheduler noop registered
io scheduler anticipatory registered (default)
io scheduler deadline registered
io scheduler cfq registered
Serial: 8250/16550 driver $Revision: 1.90 $ 4 ports, IRQ sharing disabled
serial8250.0: ttyS0 at MMIO 0x40421003 (irq = 4) is a 16550A
serial8250.0: ttyS1 at MMIO 0x40401003 (irq = 5) is a 16550A
RAMDISK driver initialized: 16 RAM disks of 65536K size 1024 blocksize
XSysAce driver v0771.
IDENTIFY: heads: 16, nsec: 63, cyls: 1011, size= 1019088
REGISTERED: major no.= 125 capacity= 1019088
xsa: xsa1 xsa2 xsa3
Uniform Multi-Platform E-IDE driver Revision: 7.00alpha2
ide: Assuming 50MHz system bus speed for PIO modes; override with idebus=xx
mice: PS/2 mouse device common for all mice
TCP bic registered
NET: Registered protocol family 1
VFS: Mounted root (ext2 filesystem) readonly.
Freeing unused kernel memory: 100k init
EXT2-fs error (device xsa2): ext2_check_page: bad entry in directory #32689: unaligned directory entry - offset=1024, inode=1713398885, rec_len=29295, name_len=109
Warning: unable to open an initial console.
init has generated signal 11 but has no handler for it
Kernel panic - not syncing: Attempted to kill init!
The only thing I notice is that the disk capacity is wrong, its a 512Mb, not a 1Gb as shown.
Any thoughts about what to look into next?
Thanks a lot.
Joe Robertson
Joseph.Robertson at sanmina-sci.com
-----Original Message-----
From: urwithsudheer [mailto:urwithsudheer at gmail.com]
Sent: Mon 7/16/2007 12:08 AM
To: Robertson, Joseph M.
Cc: linuxppc-embedded at ozlabs.org
Subject: Re: XSysAce driver cant mount DOS part
Hi Joe Robertson,
Thanks for the link.
In the xsa_thread function, can u try changing the hardcoded coded value
"2" to "xsa_cur_req->current_nr_sectors "
The actual code in the given link.
for(i = xsa_cur_req->current_nr_sectors; i > 0; i-=2){
+ xsa_device.req_done = 1;
+ while ((stat = cur_req(&SysAce, sector,
+ 2,
+ buffer)) == XST_DEVICE_BUSY)
+ xsa_short_delay();
Try changing it to ...
for(i = xsa_cur_req->current_nr_sectors; i > 0;
i-=xsa_cur_req->current_nr_sectors ){ xsa_device.req_done = 1;
while ((stat = cur_req(&SysAce, sector,
xsa_cur_req->current_nr_sectors ,
buffer)) == XST_DEVICE_BUSY)
xsa_short_delay();
Due to the hardcoded value, it gave problem while mounting but no issue
with fdisk. It mounts well but generated a kernel BUG. Tried changing
the value to '1' from '2' , fdisk crashed but mount is working well. So
removed the hardcode value and then placed the dynamic variable
xsa_cur_req->current_nr_sectors which is chosen by kernel. And now fdisk
and mount both are working fine.
Pl let me know the results in your setup.
Thanks
Sudheer
Robertson, Joseph M. wrote:
>
> 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 at sanmina-sci.com
>
>
>
> -----Original Message-----
> From: urwithsudheer [mailto:urwithsudheer at gmail.com]
> Sent: Fri 7/13/2007 4:25 AM
> To: Robertson, Joseph M.
> Cc: linuxppc-embedded at 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 at sanmina-sci.com
> >
> >
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> Uniform Electronic Transactions Act or the applicability of any other
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> attachments hereto are not intended to represent an offer or
> acceptance to enter into a contract and are not otherwise intended to
> bind the sender, Sanmina-SCI Corporation (or any of its subsidiaries),
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CONFIDENTIALITY
This e-mail message and any attachments thereto, is intended only for use by the addressee(s) named herein and may contain legally privileged and/or confidential information. If you are not the intended recipient of this e-mail message, you are hereby notified that any dissemination, distribution or copying of this e-mail message, and any attachments thereto, is strictly prohibited. If you have received this e-mail message in error, please immediately notify the sender and permanently delete the original and any copies of this email and any prints thereof.
ABSENT AN EXPRESS STATEMENT TO THE CONTRARY HEREINABOVE, THIS E-MAIL IS NOT INTENDED AS A SUBSTITUTE FOR A WRITING. Notwithstanding the Uniform Electronic Transactions Act or the applicability of any other law of similar substance and effect, absent an express statement to the contrary hereinabove, this e-mail message its contents, and any attachments hereto are not intended to represent an offer or acceptance to enter into a contract and are not otherwise intended to bind the sender, Sanmina-SCI Corporation (or any of its subsidiaries), or any other person or entity.
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