file copy to /dev/mtd0 hangs after write

file copy to /dev/mtd0 hangs after write

[Ivar Zarans]

Hello!

I am using linux kernel 2.4.18 with included MTD drivers. I got working
Intel Strataflash on our experimental board with physmap driver.

When i write something directly to flash, using "cp" command
(cp ./image /dev/mtd0), then system hangs *after* data is written.
Command returns to shell prompt, but system does not respond any more.
Debug messages from mtd do not indicate any errors.

jffs seems to be working OK.

Any ideas why this happens? Any suggestions for debugging?

-- 
Ivar

Re: file copy to /dev/mtd0 hangs after write

[David Woodhouse]

iff@alcaron.ee said:
>  Any ideas why this happens? Any suggestions for debugging? 

SysRq-P, SysRq-T

--
dwmw2

Re: file copy to /dev/mtd0 hangs after write

[Ivar Zarans]

On Fri, Jun 14, 2002 at 09:04:08AM +0100, David Woodhouse wrote:

> >  Any ideas why this happens? Any suggestions for debugging? 
> 
> SysRq-P, SysRq-T

Does not respond even to this. Otherwise "magic key" is OK.

Any other suggestions? 

-- 
Ivar

Re: file copy to /dev/mtd0 hangs after write

[Jörn Engel]

On Fri, 14 June 2002 16:01:54 +0300, Ivar Zarans wrote:
> > >  Any ideas why this happens? Any suggestions for debugging? 
> > 
> > SysRq-P, SysRq-T
> 
> Does not respond even to this. Otherwise "magic key" is OK.
> 
> Any other suggestions? 

- use mtdblock0 instead of mtd0.
- external debugging (some jtag controller, like riscwatch)
- printk()s, if you have the time

Jörn

-- 
The cheapest, fastest and most reliable components of a computer
system are those that aren't there.
-- Gordon Bell, DEC labratories