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I found a weird crash that seems to involve running #golang apps compiled for amd64 on an aarch64 system using #qemu.
It seems to be related to the Go GC, GOGC=off works. Go 1.20 also works.
The crash output from Go runtime is in this issue, but I've been able to reproduce this when building a very simple hello world app for amd64:
https://gitlab.com/postmarketOS/pmbootstrap/-/issues/2382
Both Go's runtime/GC and qemu are complicated things I suck at debugging 
Help me fediverse, you're my only hope.
GitLabrunning mkinitfs with pmb on an aarch64 host for x86_64 fails (#2382) · Issues · postmarketOS / pmbootstrap · GitLabI found some weird failure when running mkinitfs under qemu+binfmt for an x86_64 target on an aarch64 host, it looks like something deep within Go is exploding: mkinitfs...
I would like to report this upstream, but I'm not sure which upstream... This problem seems to be specific to using qemu, but it only started crashing in Go 1.21. 