Date: Wed, 24 Jun 2020 18:51:04 -0700 From: Donald Wilde <dwilde1@gmail.com> To: "Greg 'groggy' Lehey" <grog@freebsd.org> Cc: freebsd-stable <freebsd-stable@freebsd.org> Subject: Re: swap space issues Message-ID: <CAEC7390VDxbYSY%2B4_fEaYxwdSPzbFWUVTdHw=vbAgq%2Bnmv09Vw@mail.gmail.com> In-Reply-To: <20200625000410.GA10210@eureka.lemis.com> References: <CAEC7391qs%2BA-jMpR1RyvR-BmnLyiksXHkQUjsGeePuEZJfMciw@mail.gmail.com> <20200625000410.GA10210@eureka.lemis.com>
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On 6/24/20, Greg 'groggy' Lehey <grog@freebsd.org> wrote: > On Wednesday, 24 June 2020 at 9:36:23 -0700, Donald Wilde wrote: >> All, >> >> I recently upgraded my 12-STABLE system to the latest, and now my >> swap subsystems aren't working. I deliberately set up a 40GB >> partition for swap, and when I do 'top -t' I am only seeing 7906M >> total. > > That looks suspiciously like the difference from 32 GB. Could it be > numeric overflow? And if so, where? What does pstat -s say? > Well, hi Greg! LTNT2! pstat -shm: /dev/ada0s1b 65536 (1M blocks), Used: 1.5G, Avail: 63G, Capacity: 2% This is while synth is still running on openblas and openjdk8. >> When using synth, it shows swap usage of < 2%, but then it gives the >> 'out of swap' complaint and tosses all my users out into neverland. > > Unless this also causes kernel messages to that effect, this, too, > could be an issue with synth. I believe the messages about 'out of swap' were from the kernel as it died, not synth. As I say, it killed all my active users, both root and non-root. Why does _top_ show the 7906M number? I suspect that it's deeper than just synth. What else can I share to help diagnose this? > > Greg > -- > Sent from my desktop computer. [snip] -- Don Wilde **************************************************** * What is the Internet of Things but a system * * of systems including humans? * ****************************************************
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