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From: David Woodhouse <dwmw2@infradead.org>
To: Eugeny Mints <eugeny.mints@auriga.ru>
Cc: Dmitry Pervushin <dmitry.pervushin@auriga.ru>
Cc: linux-mtd@lists.infradead.org
Subject: Re: NAND flash
Date: Thu, 09 Oct 2003 16:14:29 +0100	[thread overview]
Message-ID: <1065712468.22298.1835.camel@hades.cambridge.redhat.com> (raw)
In-Reply-To: <5B439D84E6653F4AA2E14A5D8898A7E163D806@auriga.auriga.ru>

On Thu, 2003-10-09 at 19:04 +0400, Eugeny Mints wrote:
> Hello,
> 
> Could anybody help me to solve such a problem with JFFS2 and NAND flash:
> - the NAND flash Toshiba TC58256AFTI
> - kernel 2.4.22 with latest MTD and JFFS2 
> - handy-written miniport for the paticular flash chip

When you say 'latest' do you really mean that? NAND flash support in
JFFS2 has changed a _lot_ in the last weeks, and even in the last few
days.

> The device works OK almost in any case, but when I try to execute  while
> true; do dd if=/dev/zero of=/dev/mnt/foo count=1000; done after 10-15
> minutes the system hangs; I cannot login from console or via telnet, but
> it is still ping'able. I tried to use YAFFS, perform dd to device itself
> instead of file on the filesystem on top of flash - no hangs were
> observed.

Use SysRq-P and/or SysRq-T to see where the kernel is stuck. IF that
doesn't work, enable CONFIG_JFFS2_FS_DEBUG=1 and 
echo > /proc/sys/kernel/printk then watch the console, and see what the
last thing it says is.

-- 
dwmw2

  reply	other threads:[~2003-10-09 15:14 UTC|newest]

Thread overview: 13+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2003-10-09 15:04 NAND flash Eugeny Mints
2003-10-09 15:14 ` David Woodhouse [this message]
2003-10-09 15:21 ` Stephan Linke
2003-10-09 18:01   ` Charles Manning
  -- strict thread matches above, loose matches on Subject: below --
2002-06-21  9:44 NAND FLASH Steve Tsai
2002-06-21  9:56 ` Thomas Gleixner
2002-06-21 17:07   ` Steve Tsai
2002-06-21 17:29     ` Thomas Gleixner
2001-10-16 15:34 NAND flash Larry Doolittle
2001-10-16 16:08 ` David Woodhouse
2001-10-16 13:53 nagaraj trivedi
2001-10-16 13:51 nagaraj trivedi
2001-10-16 15:06 ` Steven J. Hill

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