Hello, Just hit this warning and went searching to find this report.
On Thu, Nov 23, 2023 at 12:42 PM, Ludovic Courtès wrote: > Ludovic Courtès <ludovic.cour...@inria.fr> skribis: > >> While running ‘guix pull’, sometime between the actual ‘git pull’ (via >> Guile-Git) and channel authentication, I saw the dreaded libgc warning: >> >> Repeated allocation of very large block > > [...] > >> So it might rather be ‘update-cached-checkout’ that triggers it. > > I wonder if this was due to the big checkouts we ended up with so far: > > https://issues.guix.gnu.org/65720 > > Ludo’. In my case, just did a guix pull so I am on 2126dab4cd81db4cbde4566d8c638e45a4c0077c. Pull was fine, but this warning was repeatable on a system reconfigure: --8<---------------cut here---------------start------------->8--- ❯ sudo guix system reconfigure ~/.config/guix/config.scm --max-jobs=4 -n GC Warning: Repeated allocation of very large block (appr. size 69632): May lead to memory leak and poor performance GC Warning: Repeated allocation of very large block (appr. size 69632): May lead to memory leak and poor performance GC Warning: Repeated allocation of very large block (appr. size 69632): May lead to memory leak and poor performance GC Warning: Repeated allocation of very large block (appr. size 135168): May lead to memory leak and poor performance GC Warning: Repeated allocation of very large block (appr. size 131072): May lead to memory leak and poor performance GC Warning: Repeated allocation of very large block (appr. size 69632): May lead to memory leak and poor performance GC Warning: Repeated allocation of very large block (appr. size 102400): May lead to memory leak and poor performance substitute: updating substitutes from 'https://bordeaux-us-east-mirror.cbaines.net/'... 100.0% substitute: updating substitutes from 'https://bordeaux.guix.gnu.org'... 100.0% substitute: updating substitutes from 'https://ci.guix.gnu.org'... 100.0% substitute: updating substitutes from 'https://substitutes.nonguix.org'... 100.0% The following derivation would be built: /gnu/store/r9n8vz4s1n7v3551cphrqy0pqyl8wcv0-corectrl-1.3.5.drv 340.3 MB would be downloaded ❯ sudo guix system reconfigure ~/.config/guix/config.scm -n GC Warning: Repeated allocation of very large block (appr. size 69632): May lead to memory leak and poor performance GC Warning: Repeated allocation of very large block (appr. size 122880): May lead to memory leak and poor performance GC Warning: Repeated allocation of very large block (appr. size 69632): May lead to memory leak and poor performance GC Warning: Repeated allocation of very large block (appr. size 69632): May lead to memory leak and poor performance GC Warning: Repeated allocation of very large block (appr. size 69632): May lead to memory leak and poor performance The following derivation would be built: /gnu/store/r9n8vz4s1n7v3551cphrqy0pqyl8wcv0-corectrl-1.3.5.drv 340.3 MB would be downloaded ❯ sudo guix system reconfigure ~/.config/guix/config.scm --max-jobs=4 GC Warning: Repeated allocation of very large block (appr. size 69632): May lead to memory leak and poor performance GC Warning: Repeated allocation of very large block (appr. size 69632): May lead to memory leak and poor performance GC Warning: Repeated allocation of very large block (appr. size 69632): May lead to memory leak and poor performance GC Warning: Repeated allocation of very large block (appr. size 131072): May lead to memory leak and poor performance The following derivation will be built: /gnu/store/r9n8vz4s1n7v3551cphrqy0pqyl8wcv0-corectrl-1.3.5.drv 340.3 MB will be downloaded adwaita-icon-theme-44.0 904KiB 108.0MiB/s 00:00 ▕██████████████████▏ 100.0% guix substitute: warning: download from 'https://bordeaux-us-east-mirror.cbaines.net/nar/lzip/c2brbsvn75866l81rswb7z8sdpw2dvjr-font-abattis-cantarell-0.303-0.e049149' failed: 404, "Not Found" retrying download of '/gnu/store/c2brbsvn75866l81rswb7z8sdpw2dvjr-font-abattis-cantarell-0.303-0.e049149' with other substitute URLs... substitution of /gnu/store/5in68ily7wjj8jy67kyj8sikwmci894j-ath9k-htc-ar7010-firmware-1.4.0 complete --8<---------------cut here---------------end--------------->8--- this last one continued until I killed it to send capture the previous output and send it. --8<---------------cut here---------------start------------->8--- ❯ free -h total used free shared buff/cache available Mem: 15Gi 10Gi 3.4Gi 706Mi 2.4Gi 4.8Gi Swap: 15Gi 4.1Gi 11Gi --8<---------------cut here---------------end--------------->8--- But since interrupting the reconfigure, it doesn't give the warning again. So something happened by actually starting the reconfigure process...? I don't think I've ever seen this before. Hope this helps! John
