Date: Sat, 4 Jan 2025 13:11:05 -0800 From: Craig Leres <leres@freebsd.org> To: Peter 'PMc' Much <pmc@citylink.dinoex.sub.org>, freebsd-hackers@freebsd.org Subject: Re: curious crashes when under memory pressure Message-ID: <87928610-fcad-400e-b7b3-076c6d3f1200@freebsd.org> In-Reply-To: <slrnvnj05d.27gd.pmc@disp.intra.daemon.contact> References: <CAPx1GvfwqFqvMm0RkTvxa4BJStvOdG0=pNx2dCuWEzCXsqhqHw@mail.gmail.com> <slrnvnij2h.26bu.pmc@disp.intra.daemon.contact> <CAPx1GvfOh4g1AeOcYXC26W5jbPAgA_E_t7CW9chg4miC8c15-w@mail.gmail.com> <9e71d8eb-74c3-4bcb-89b1-90d4f9746168@quip.cz> <33db3282-25c4-42fb-8d97-1918d52fa9e2@denninger.net> <4094b79b-c54a-4953-b693-1b4e8387cf9f@freebsd.org> <slrnvnj05d.27gd.pmc@disp.intra.daemon.contact>
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On 1/4/25 10:40, Peter 'PMc' Much wrote:
> There might be a corresponding message in the system log for the
> "Killed", that would at least tell us the signal, maybe more.
I wish. One minute before I see:
Jan 4 01:52:10 zinc.ee.lbl.gov kernel: : pid 21007 (conftest), jid
3845, uid 0: exited on signal 11 (core dumped)
but I see a lot of those and I believe they're normal and autoconf related.
On 1/4/25 10:47, Miroslav Lachman wrote:
> Redundancy in case of disk failure. I've seen many disk failures over
> the years, and when you have a swap concatenated from partitions on 2
> disks, the whole system mirrored on 2 disks, and 1 disk fails, the
> system crashes. That's why we've always used swap over gmirrored
> partitions. Then we can pull out one disk when system is running and
> replace it with a new disk.
This. And in my case the system is located in a data center that I do
not have casual access to so I'm happy to make the tradeoff in favor of
system resilience.
Craig
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