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From: Detlef Schmicker <d.schmicker@physik.de>
To: linux-kernel@vger.kernel.org
Subject: Lost characters on serial console
Date: Wed, 28 Jan 2004 07:55:44 +0100	[thread overview]
Message-ID: <40175CF0.9030903@physik.de> (raw)

Hello,

we loose characters on the serial consol during receiving at 115kbaud. 
Especially if
the ide harddisk is used during reception.

We use a 300MHz Goede MediaGX, with a 16550A serial port (16 byte FIFO). We
tuned the Harddisk with hdparm, which reduced the problem, but it still 
exists.

We tried several Kernels: 2.4.4, 2.4.20, 2.4.24 and 2.6.0 and several 
patches "preempt" and "low-lattency".
No changes at all.
We used ext2 and ReiserFS file system.

There were some messages on this problem in the mailing list, but they 
are years old and we did not find
real hints, how to solve.

Can anybody help, can we help with debugging, testing?

Thanks a lot
Detlef Schmicker


             reply	other threads:[~2004-01-28  6:56 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2004-01-28  6:55 Detlef Schmicker [this message]
  -- strict thread matches above, loose matches on Subject: below --
2004-01-28  7:35 Lost characters on serial console Srihari Vijayaraghavan

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