Date: Wed, 15 Jul 1998 15:47:29 +0900 (JST) From: HAMADA Naoki <hamada@astec.co.jp> To: smoergrd@oslo.geco-prakla.slb.com Cc: sbabkin@dcn.att.com, mike@smith.net.au, hackers@FreeBSD.ORG Subject: Re: NIC drivers Message-ID: <199807150647.PAA25283@stone.astec.co.jp> In-Reply-To: Dag-Erling Coidan Sm,Ax(Brgrav's message of "09 Jul 1998 16:31:39 %2B0200" <rx47m1nyu2c.fsf@oslo.geco-prakla.slb.com> References: <C50B6FBA632FD111AF0F0000C0AD71EEFF8B5A@dcn71.dcn.att.com> <rx47m1nyu2c.fsf@oslo.geco-prakla.slb.com>
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smoergrd@oslo.geco-prakla.slb.com writes:
>Believe me, it still sucks. Search the archives (both the mailing list
>archives and the PR database) for "no buffer space", and/or "ep0".
>Basically, the driver is fine for telnet and mail, but wedges under
>sustained load. I can get it to hang without ever going above 20 kBps
>(160 kbps). Gimme an Intel EtherExpress.
I carefully looked through the source code to find a bug which results
mbuf leaks. Could you try this patch?
-nao
--- sys/i386/isa/if_ep.c- Wed Jul 15 15:40:09 1998
+++ sys/i386/isa/if_ep.c Wed Jul 15 15:41:04 1998
@@ -1128,8 +1128,7 @@
/* we see if by now, the packet has completly arrived */
goto read_again;
}
- outw(BASE + EP_COMMAND, SET_RX_EARLY_THRESH | RX_NEXT_EARLY_THRESH);
- return;
+ goto out;
}
outw(BASE + EP_COMMAND, RX_DISCARD_TOP_PACK);
++ifp->if_ipackets;
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