Date: 25 Feb 1999 17:03:30 +0100 From: Graeme Brown <graeme.brown@bt-sys.bt.co.uk> To: Panos GEVROS <P.Gevros@cs.ucl.ac.uk> Cc: "FreeBSD-Net (FreeBSD.Org) List" <freebsd-net@freebsd.org> Subject: RE: Troubles with BSDATM and PVCs Message-ID: <n1292160495.79168@maczebedee>
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Panos
thanks for this info. we will upgrade to altq-1.1.3.
regards
Graeme
_______________________________________________________________________________
To: Graeme Brown
Cc: P.Gevros@cs.ucl.ac.uk
From: Panos GEVROS on Thu, Feb 25, 1999 4:42 pm
Subject: Re: Troubles with BSDATM and PVCs
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To: Graeme Brown <graeme.brown@bt-sys.bt.co.uk>
cc: P.Gevros@cs.ucl.ac.uk
Subject: Re: Troubles with BSDATM and PVCs
In-reply-to: Your message of "25 Feb 1999 16:02:03 +0100."
<n1292164143.57598@maczebedee>
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Date: Thu, 25 Feb 1999 16:37:55 +0100
Message-ID: <6055.919960675@cs.ucl.ac.uk>
From: Panos GEVROS <P.Gevros@cs.ucl.ac.uk>
Graeme,
there is a bug in the ATM driver which causes interfaces to freeze
occasionally
we used to have this problem and talked to Kenjiro, it is fixed in altq-1.1.3
Panos
----------------------------------------------------------------------
--- midway.c- Wed Oct 7 20:54:18 1998
+++ midway.c Thu Oct 8 12:24:34 1998
@@ -2237,7 +2237,11 @@
goto dequeue_drop;
}
- if (launch.need > sc->txslot[chan].bfree) {
+ /*
+ * note: don't use the entire buffer space. if WRTX becomes equal
+ * to RDTX, the transmitter stops assuming the buffer is empty! --kjc
+ */
+ if (launch.need >= sc->txslot[chan].bfree) {
EN_COUNT(sc->txoutspace);
#ifdef EN_DEBUG
printf("%s: tx%d: out of transmit space\n", sc->sc_dev.dv_xname, chan);
----------------------------------------------------------------------
|
|Over a time (say a few days) I find that typicaly one of the pvcsif
|becomes unserviceable, I cannot ping A->B or B->A from either
|end of the pvc. ping reports 100 % packet loss.
|
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