lkml.org 
[lkml]   [1999]   [Sep]   [9]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
From
SubjectRe: 2.2.12: serial driver swapping characters?
Date
On Thu, 9 Sep 1999 08:20:48 +0200, "Ulrich Windl"
<ulrich.windl@rz.uni-regensburg.de> wrote:

>On 8 Sep 99, at 13:47, Kris Karas wrote:
>

>> I just saw the first instance of what might be serial corruption last night
>> running 2.3.16. The kernel dumped "VJ Decompression Error" onto my console
>> while I was using PPP over an error-correcting modem link. I have no idea if
>> this was due to the serial stream or something in the TCP layer; but if the
>> former, and the serial code from 2.3 was back-ported to 2.2, then perhaps the
>> errors are related.
>
>Let me throw in that the problem did not occur on a faster machine,
>so there might be some race conditions. Slow hardware can't explain
>swapped chracters or duplicated ones IMHO.
>
>Anyone with a real slow machine out there?
>

I have a PS/2 486SLC which is a 17 bogomip machine. I am having a lot
of problems with PPP throughput since moving up from 2.2.10 to 2.2.12.
At times I see up to 50% incoming PPP frame errors over a V90 modem
link.

I don't know if this is relevant.




-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.rutgers.edu
Please read the FAQ at http://www.tux.org/lkml/

\
 
 \ /
  Last update: 2005-03-22 13:53    [from the cache]
©2003-2014 Jasper Spaans. Advertise on this site