Re: 2.1.9[78]: recvmsg bug: copied 0

David S. Miller (davem@dm.cobaltmicro.com)
Sun, 26 Apr 1998 16:03:47 -0700


Date: Sun, 26 Apr 1998 22:59:55 +0200
From: Steffen Zahn <zahn@berlin.snafu.de>

I occasionally get the following messages in my syslog file:

Apr 26 22:38:00 zahn vmunix: recvmsg bug: copied 0 seq 5AF28142
Apr 26 22:38:00 zahn vmunix: recvmsg bug: copied 0 seq 5AF28142
Apr 26 22:38:40 zahn vmunix: recvmsg bug: copied 0 seq 635E6F7B
Apr 26 22:38:40 zahn vmunix: recvmsg bug: copied 0 seq 635E6F7B
Apr 26 22:38:55 zahn vmunix: recvmsg bug: copied 0 seq 65E659DF
Apr 26 22:38:55 zahn vmunix: recvmsg bug: copied 0 seq 65E659DF

This happens sometimes when I dial-up to the internet using ISDN/ipppd
and run fetchmail to exchange email. The fetchmail process will
then do nothing and has to be killed. A retry of fetchmail will usually
work in this situation.

Linux-2.1.[78] SMP, dual P2, NMI-oopser.2.1.96-C.gz, mtrr-patch-v1.14.gz,
ISDN, ethernet 3c905, fetchmail-4.3.7, egcs-1.0.2.

Thanks for the report, we're looking at it, this is the first report
of this kind we've ever heard of.

Please, and I know it sounds senseless and a waste of time, but please
try to reproduce this problem _without_ all the extra kernel patches
you have installed on your system. This narrows things down such that
we know it's a problem in the networking code, and not a bug showing
up as a side effect of another kernel patch you have installed.

Later,
David S. Miller
davem@dm.cobaltmicro.com

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