Date: Mon, 12 Feb 2018 12:19:10 +0700 From: Eugene Grosbein <eugen@grosbein.net> To: =?UTF-8?Q?Ask_Bj=c3=b8rn_Hansen?= <ask@develooper.com>, freebsd-stable@freebsd.org Subject: Re: FreeBSD on 64MB memory Message-ID: <5A8123CE.9050609@grosbein.net> In-Reply-To: <5FB97479-C49D-4C6E-8416-015ECA656C14@develooper.com> References: <5FB97479-C49D-4C6E-8416-015ECA656C14@develooper.com>
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12.02.2018 11:56, Ask Bjørn Hansen пишет: > Hi, > > I have an old Soekris system with 64MB memory that I upgraded from 10.3 to 11.1 recently. Since then it’s started hanging every few days. > > Today I happened to have a “top” instance running on the serial console. The system is minimally responsive to the network (ICMP and CARP are working, but no services). > >>From the top output it’s not clear what resource it’s out of. I suspect it is out of many types of kernel memory including mbuf clusters, hence no working TCP/UDP but ICMP works. > There’s no swap configured, but that what it looks like it’s trying to do? > > The ‘pf purge’ process is suspicious. There are no pf rules configured on the system (it should be all disabled). > > Any suggestions? (Other than “seriously … 64MB memory?!”). Please show output of commands: grep memory /var/run/dmesg.boot top -ores -d1 sysctl kern.ipc.nmbclusters It would be also very useful to obtain output of "vmstat -z" in a moment of breakage.
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