Am Mittwoch, dem 17.02.2021 um 18:16 +0100 schrieb Jonas Hahnfeld via bug-lilypond: > Am Mittwoch, dem 17.02.2021 um 00:00 +0100 schrieb Arusekk: > > W dniu 16.02.2021 o 18:33, Jonas Hahnfeld pisze: > > > Usual disclaimer that LilyPond doesn't fully support Guile 2.2 (yet), > > > so you'll definitely see worse performance (mostly slower startup) and > > > might run into occasional issues, like this one. Guile 1.8 should be > > > the safer choice for now (if you still have it in Gentoo). > > I tried to track back the moment the issue was introduced, but then > > found out that guile 2.x has been supported for two versions only, so I > > stopped digging. Good to know. > > > That said, I've seen this issue before during my tests with Guile 2.2 > > > (Translators being collected while still referenced somewhere), but > > > never had a stack trace to investigate. So it's already great to have > > > that, but do I read this correctly that you can reliably reproduce the > > > issue on your system? I'm asking because I can't on mine (Arch Linux) > > > and in fact, your file works just fine for me. So finding out how to > > > trigger this kind of bugs more reliably would be a huge step. > > On my box lilypond crashes every single time I command it to produce > > PDFs (never does if not told to lay out), so I think I can provide much > > help, maybe core files, or recorded execution from GDB (never tried to > > do it before, though). > > Okay, that's good for testing the fix (even though I've managed to > reproduce the report from ASan). > > > > Regarding AddressSanitizer, did you just compile LilyPond with it or > > > all dependencies? I didn't attempt so far because I thought it wouldn't > > > work, but maybe I should try? > > > > I just set CFLAGS='-fsanitize=address -g' and > > LDFLAGS='-fsanitize=address' before configuring lilypond, and installed > > the debug symbols for guile, so that AddressSanitizer could resolve > > function names from it. ASAN wiki suggests to mainly compile executables > > with it, because it does not support sanitized libraries used with not > > sanitized executables (or it does, but requires preloading it manually). > > Ok, makes sense. I guess I confused it with MemorySanitizer then. > > > But maybe sanitizing some library too would help additionally? I could > > try it if you want, but sanitizing guile might break[1] (I have not > > tried). Gentoo gives extreme flexibility as to managing compile-time > > options, while handling the burden of building everything one thing at a > > time, so this does not pose any problem for me (I don't recommend > > setting up a Gentoo VM just for tests, unless you are patient, since > > building lilypond and deps from a base system takes at least an hour). > > It's not needed right now, I think I understand the problem at hand, > see https://gitlab.com/lilypond/lilypond/-/issues/6100 Maybe my plan > for fixing it works, let's see 😉️
Patch up at https://gitlab.com/lilypond/lilypond/-/merge_requests/655 , this makes the given example work under Asan on my system. It would be great if you could test on your end (as far as I understand, you already compiled master?). The second interesting question is of course if that was the only bug or whether there are other issues lurking around. Unfortunately I can't just run all regression tests with the instrumented version because it reports errors during garbage collection after some time... Jonas
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