From mboxrd@z Thu Jan 1 00:00:00 1970 From: Christopher Lemmer Webber Subject: Re: bug#30680: Using Racket's raco on on Guix(SD) Date: Sat, 11 Aug 2018 17:55:31 -0400 Message-ID: <87va8gfu0c.fsf@dustycloud.org> References: <87d0xn24d9.fsf@dustycloud.org> <0990d521-934b-069b-3f29-faf8a22a5bd0@fastmail.net> <87wosxexu7.fsf@dustycloud.org> <87h8k0d54i.fsf@ngyro.com> Mime-Version: 1.0 Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable Return-path: Sender: racket-users-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org In-reply-to: <87h8k0d54i.fsf-txiMz1+kQXoAvxtiuMwx3w@public.gmane.org> List-Post: , List-Help: , List-Archive: , List-Unsubscribe: , To: Timothy Sample Cc: Konrad Hinsen , 30680-ubl+/3LiMTaZdePnXv/OxA@public.gmane.org, help-guix , racket-users-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org List-Id: help-guix.gnu.org Timothy Sample writes: > Christopher Lemmer Webber 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=E2=80=99m 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=3Ddebug 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... (5d9ca57f3e267d956c7b5e62578467beb8ccc= 1d2 4d21ac412723fbf33f97669c2f73f0e9367f4510) > compiler/cm: maybe-compile-zo starting /gnu/store/jx0bkmaafb8fq0mqs5ywgnx= q8rbpn8j1-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-rack= et-6.12/share/racket/collects/openssl/libcrypto.rkt > open-output-file: cannot open output file > path: /gnu/store/jx0bkmaafb8fq0mqs5ywgnxq8rbpn8j1-racket-6.12/share/rac= ket/collects/openssl/compiled/tmp15340167971534016797570 > system error: Read-only file system; errno=3D30 > 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 =E2=80=9C.dep=E2=80=9D file. When the out= put 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. --=20 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 e= mail to racket-users+unsubscribe-/JYPxA39Uh5TLH3MbocFF+G/Ez6ZCGd0@public.gmane.org For more options, visit https://groups.google.com/d/optout.