Timothy Sample writes: > Christopher Lemmer Webber <cweb...@dustycloud.org> writes: > >> Konrad Hinsen writes: >> >>> In my tests, all packages ended up working, but performance is indeed >>> worse than with a Racket installation outside of Guix. >>> >>> It would be nice if someone with more knowledge of Racket internals >>> could give a hint or two for debugging this issue! >>> >>> Konrad. >> >> I'm posting a bug bounty on this issue: if someone can fix this I will >> pay them $250 USD. I don't have the time or knowledge enough of Racket >> internals to do so myself. > > I have discovered a few things, but I’m not sure how to fix the > underlying problem(s). > > The reason Racket is trying to recompile the OpenSSL files is because of > a hash mismatch. This can be seen by enabling debugging output: > > $ PLTSTDERR=debug raco setup openssl > > Which says a lot of things, but most interestingly it says: > > -------------------------------- > ... > compiler/cm: checking: > /gnu/store/jx0bkmaafb8fq0mqs5ywgnxq8rbpn8j1-racket-6.12/share/racket/collects/openssl/libcrypto.rkt > compiler/cm: different src hash... (5d9ca57f3e267d956c7b5e62578467beb8ccc1d2 > 4d21ac412723fbf33f97669c2f73f0e9367f4510) > compiler/cm: maybe-compile-zo starting > /gnu/store/jx0bkmaafb8fq0mqs5ywgnxq8rbpn8j1-racket-6.12/share/racket/collects/openssl/libcrypto.rkt > compiler/cm: start-compile: > /gnu/store/jx0bkmaafb8fq0mqs5ywgnxq8rbpn8j1-racket-6.12/share/racket/collects/openssl/libcrypto.rkt > compiler/cm: compiling > /gnu/store/jx0bkmaafb8fq0mqs5ywgnxq8rbpn8j1-racket-6.12/share/racket/collects/openssl/libcrypto.rkt > open-output-file: cannot open output file > path: > /gnu/store/jx0bkmaafb8fq0mqs5ywgnxq8rbpn8j1-racket-6.12/share/racket/collects/openssl/compiled/tmp15340167971534016797570 > system error: Read-only file system; errno=30 > context...: > ... > -------------------------------- > > This hash mismatch is caused by grafting. When the package is built, > the path to OpenSSL gets hard-coded in a source file. The SHA-1 hash > for this file is stored in its “.dep” file. When the output is > grafted, the source file gets updated with a new OpenSSL path, but the > hash does not get updated. This makes Racket think that the cached > bytecode file is incorrect (even though it was likely grafted too), > and it tries to recompile it. It fails because it tries to write this > new bytecode file to the store.
Interesting... I hadn't even considered grafting. (I still wonder why it's even trying to open *any* file in the store for output though...) > I double checked this by trying with an ungrafted Racket, and got better > results. (There was still a warning about writing to the store, but it > seemed less significant.) Cool! > The only thing I can think of for a fix would be to patch Racket to be > more lenient with bytecode files in the store. That is, ignore hash > mismatches in store-files. I might give this a try later tonight if > nobody has any better ideas. > > -- Tim BTW, some examples of packages where I've had trouble, in case it helps with testing: - Raart - Gregor - crypto (seemed to work last time, not sure why it wasn't working before) Though at this point I also can't do just "raco setup" on a local package either, but maybe resolving this issue will fix that. -- You received this message because you are subscribed to the Google Groups "Racket Users" group. To unsubscribe from this group and stop receiving emails from it, send an email to racket-users+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
