Date: Fri, 13 Sep 2019 21:33:02 +1000 From: Trev <freebsd-arm@sentry.org> To: FreeBSD-arm <freebsd-arm@freebsd.org> Subject: Re: spurious out of swap kills Message-ID: <dafa24f1-51e9-907c-1802-fe86243e2982@sentry.org> In-Reply-To: <20190913055332.GN2559@kib.kiev.ua> References: <tkrat.84b3295682c83162@FreeBSD.org> <20190913000635.GG8397@raichu> <tkrat.1a0e98a230c1a223@FreeBSD.org> <20190913055332.GN2559@kib.kiev.ua>
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[From the FreeBSD-Current mailing list] Konstantin Belousov wrote on 13/09/2019 15:53: > Basically, page fault handler waits for vm.pfault_oom_wait * > vm.pfault_oom_attempts for a page allocation before killing the process. > Default is 30 secs, and if you cannot get a page for 30 secs, there is > something very wrong with the machine. This may well explain the oom kills that were being experienced on several Raspberry Pi 3B+ boards using the microSD as swap and why upgrading the microSD to the fastest available or using a USB attached hard drive did not suffer from the issue.
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