Re: Thread+network crashes in 2.0/2.1

Linus Torvalds (
Sat, 28 Feb 1998 13:28:53 -0800 (PST)

On Sat, 28 Feb 1998, Robert M. Fleischman wrote:
> Is it an easy fix to the network driver? If we could get a patch, then
> we could see if we've truly flushed out the issue with the kernel.

You could try this "patch" that might help, but which disables the
speed-optimizations altogether in 3c59x.c around line 1745:

/* Check if the packet is long enough to just accept without
copying to a properly sized skbuff. */
if (pkt_len < rx_copybreak
&& (skb = DEV_ALLOC_SKB(pkt_len + 2)) != 0) {
.... old code ....

remove the aboe lines, do something like this instead:

skb = DEV_ALLOC_SKB(pkt_len + 2);
if (!skb)
if (1) {
.... old code ....

This essentially forces it to go through the "slow" case all the time, and
if the allocation fails we exit the while-loop. I don't think this is a
good patch, but it might be enough to see if you can get rid of that
particular error case..


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