Date: Mon, 25 Nov 2019 21:20:14 +0100 From: "Ronald Klop" <ronald-lists@klop.ws> To: freebsd-arm@freebsd.org, "bob prohaska" <fbsd@www.zefox.net> Subject: Re: Rpi3 smsc0: warning: failed to create new mbuf Message-ID: <op.0btur0vikndu52@sjakie> In-Reply-To: <20191125200512.GA24578@www.zefox.net> References: <20191125200512.GA24578@www.zefox.net>
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Check sysctl kern.ipc.nmbclusters and netstat -m | grep "mbuf clusters". The default is pretty low on rpi3. I run this script every hour from cron which is a 'poor man's' autotune. Works for me though. [root@rpi3 ~]# cat bin/nmbclustercheck.sh #! /bin/sh LINE=$( netstat -m | grep "mbuf clusters" | cut -d ' ' -f 1 ) CURRENT=$( echo $LINE | cut -d '/' -f 1 ) MAX=$( echo $LINE | cut -d '/' -f 4 ) if test $CURRENT -gt $(( $MAX / 2 )) then NEW_MAX=$(( $MAX * 2 )) echo Increase kern.upc.nmbclusters from $MAX to $NEW_MAX sysctl kern.ipc.nmbclusters=$NEW_MAX fi Regards, Ronald. On Mon, 25 Nov 2019 21:05:13 +0100, bob prohaska <fbsd@www.zefox.net> wrote: > An RPI3 running 13.0-CURRENT #0 r355024 stalled with a flood of > smsc0: warning: failed to create new mbuf > on the console. It was compiling www/chromium. > > The debugger started without difficulty, but unfortunately > I neglected to capture a backtrace. The machine rebooted > without difficulty and has resumed the build of www/chromium. > > Is a backtrace worth collecting if it happens again? > > Thanks for reading, > > bob prohaska > > _______________________________________________ > freebsd-arm@freebsd.org mailing list > https://lists.freebsd.org/mailman/listinfo/freebsd-arm > To unsubscribe, send any mail to "freebsd-arm-unsubscribe@freebsd.org"
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