Syncthing using all RAM and then locking up the system

Thanks for the comprehensive info. Having two folders means max 128MB requests should be outstanding. That doesn’t mean only 128MB memory is used, overhead is to be expected. Though the nearly 500MB in the profile seem too much for that. Regardless of if there’s a bug or not, with only 500MB memory available I’d definitely set maxConcurrentIncomingRequestKiB to something smaller than it’s default (e.g. 64 MB), and maxRequestKiB per device to maybe 32MB.

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