Date: Tue, 3 Mar 2020 10:44:26 +0100 (CET) From: =?UTF-8?Q?Trond_Endrest=C3=B8l?= <trond.endrestol@ximalas.info> To: Yuri Pankov <ypankov@fastmail.com> Cc: current@freebsd.org Subject: Re: can't build rust -- out of swap space Message-ID: <alpine.BSF.2.22.395.2003031042410.6036@enterprise.ximalas.info> In-Reply-To: <a6a9f0d2-5c06-9f77-73bb-ec51c0950b46@fastmail.com> References: <b86e3f65-fcbb-687f-ce94-a3415a561cd3@fastmail.com> <a6a9f0d2-5c06-9f77-73bb-ec51c0950b46@fastmail.com>
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On Tue, 3 Mar 2020 12:40+0300, Yuri Pankov wrote: > On 03.03.2020 11:49, Yuri Pankov wrote: > > With recent pkg fallout, I'm trying to build rust myself first time ever (as > > far as I can remember), and it's failing running out of swap on the > > following step: > > > > Building stage0 std artifacts (x86_64-unknown-freebsd -> > > x86_64-unknown-freebsd) > > running: > > "/usr/ports/lang/rust/work/rustc-1.41.1-src/build/x86_64-unknown-freebsd/stage0/bin/cargo" > > "build" "-Zconfig-profile" "--target" "x86_64-unknown-freebsd" > > "-Zbinary-dep-depinfo" "-j" "1" "-v" "--release" "--frozen" "--features" > > "panic-unwind backtrace compiler-builtins-c" "--manifest-path" > > "/usr/ports/lang/rust/work/rustc-1.41.1-src/src/libtest/Cargo.toml" > > "--message-format" "json-render-diagnostics" > > ^C^C^C > > Build completed unsuccessfully in 0:00:55 > > > > Here I pressed ^C as the build actually continues despite several rustdoc, > > python, and other processes being killed. > > > > swap_pager: out of swap space > > swp_pager_getswapspace(20): failed > > swap_pager: out of swap space > > swp_pager_getswapspace(11): failed > > > > The system has 32G of RAM and 2GB swap partition (as advised by zfs-auto > > installation option), top shows about 28G of memory free at that moment, so > > I'm wondering why the swap is being used, and if 2G should be enough to > > build rust. > > Looks like I got this wrong, adding a file-backed swap space I was actually > able to run top, and seeing only 100M of memory being "Free", ~20G memory > reported as "Active", and swap usage constantly growing being consumed by > rustdoc process; something is really wrong here. Run top(1), hit the o key, type in size, and hit enter to have top sort the process list according to their virtual size. The culprit will eventually work its way to the top. -- Trond.
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