i486 can't keep up with 2.2.12 ?

tenthumbs (10@dhyp3-102.cybernex.net)
Wed, 13 Oct 1999 08:48:01 -0400 (EDT)

I have an old i486 machine with a not quite so old Cyrix 5x86 cpu and
four IDE drives. (I have unmasked irq's on all drives so that's not an
issue.) Using a 2.2.12 kernel and pppd 2.3.9, there are a fairly large
number of packet errors. With just virtual consoles (no X) and just one
user program (fetchmail) running, ifconfig shows this:

ppp0 Link encap:Point-to-Point Protocol
UP POINTOPOINT RUNNING NOARP MULTICAST MTU:1500 Metric:1
RX packets:4301 errors:12 dropped:0 overruns:0 frame:12 <---
TX packets:4213 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:

Over a longer period of 64 minutes, ifconfig reported more frame errors
and "netstat -s" showed

TcpExt:
105 packets pruned from receive queue because of socket buffer
overrun

which doesn't seem good.

None of this happens with a 2.0.38 kernel and pppd 2.2.0f.

I can see that this might be due to a change in the disk code or in the
network code or in pppd. Does anyone have any ideas?

Thanks.

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