Messages in this thread | | | From | Shaw Carruthers <> | Subject | Re: 2.2.12: serial driver swapping characters? | Date | Thu, 09 Sep 1999 12:18:27 +0100 |
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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.
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