On Sun, 26 Jul 2026 17:30:48 +0200, Paul Gevers wrote:
I was looking into why one of the loong64 host of ci.d.n was showing a spike is swap (we have 1.8 TB, it was used all) and loss of debci-workers and the culprit seems to be src:libipc-shareable-perl. I ran"""/usr/bin/autopkgtest --no-built-binaries --timeout=30600 --needs-internet=skip --timeout-install=9999 --user debci --apt-upgrade libipc-shareable-perl -- lxc --sudo --name elbrus autopkgtest-unstable-loong64"""manually on the host and killed it once top reported 70% memory use by perl (of the 127 GB). Swap plummeted from 74 GB to 10 GB.
Hrm, annoying.
I guess this means there's a memory leak somewhere on loong64. Otherwise, can you please limit the test to a reasonable memory footprint?
On amd64 I behaves somewhat sanely, although it also uses lots of shared memory.
I have a suspicion which test causes this problem, but that's more guessing.
Did you have a chance to see in top, which process/test was the culprit?
Also there's a new upstream release, but that's more of a rewrite and I don't dare to guess if it changes the problem. Maybe we should just try, but I don't want to kill the poor loong64 CI hosts …
Cheers, gregor -- .''`. https://info.comodo.priv.at -- Debian Developer https://www.debian.org : :' : OpenPGP fingerprint D1E1 316E 93A7 60A8 104D 85FA BB3A 6801 8649 AA06 `. `' Member VIBE!AT & SPI Inc. -- Supporter Free Software Foundation Europe`-
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