Christopher Baines writes: > The guile-fibers package seems to fail to build on some machines. > > starting phase `check' > make check-am > make[1]: Entering directory '/tmp/guix-build-guile-fibers-1.0.0.drv-0/fibers-1.0.0' > make check-TESTS > make[2]: Entering directory '/tmp/guix-build-guile-fibers-1.0.0.drv-0/fibers-1.0.0' > assert #f equal to #f: ok > assert #t terminates: ok > assert (false-if-exception (begin (run-fibers) #t)) equal to #f: ok > assert terminates: (run-fibers (lambda () (sleep 1)) #:drain? #t): ok (1.044672258 s) > assert terminates: (run-fibers (lambda () (do-times 1 (spawn-fiber (lambda () #t)))) #:drain? #t): ok (0.034571671 s) > assert terminates: (run-fibers (lambda () (do-times 10 (spawn-fiber (lambda () #t)))) #:drain? #t): ok (0.05742899 s) > assert terminates: (run-fibers (lambda () (do-times 100 (spawn-fiber (lambda () #t)))) #:drain? #t): ok (0.022090434 s) > assert terminates: (run-fibers (lambda () (do-times 1000 (spawn-fiber (lambda () #t)))) #:drain? #t): ok (0.110914993 s) > assert terminates: (run-fibers (lambda () (do-times 10000 (spawn-fiber (lambda () #t)))) #:drain? #t): ok (0.110751905 s) > assert terminates: (run-fibers (lambda () (do-times 100000 (spawn-fiber (lambda () #t)))) #:drain? #t): ok (0.747805854 s) > assert terminates: (run-fibers (lambda () (do-times 100000 (spawn-fiber (lambda () #t) #:parallel? #t))) #:drain? #t): ok (1.116078927 s) > assert terminates: (run-fibers (lambda () (do-times 100000 (spawn-fiber loop-to-1e4))) #:drain? #t): ok (396.536024374 s) > assert terminates: (run-fibers (lambda () (do-times 100000 (spawn-fiber loop-to-1e4 #:parallel? #t))) #:drain? #t): ok (67.471703208 s) > assert terminates: (run-fibers (lambda () (do-times 1 (spawn-fiber (lambda () (sleep 1))))) #:drain? #t): ok (1.027788168 s) > assert terminates: (run-fibers (lambda () (do-times 10 (spawn-fiber (lambda () (sleep 1))))) #:drain? #t): /gnu/store/29jhbbg1hf557x8j53f9sxd9imlmf02a-bash-minimal-5.0.7/bin/bash: line 5: 2 > 445 Aborted top_srcdir="/tmp/guix-build-guile-fibers-1.0.0.drv-0/fibers-1.0.0" ./env /gnu/store/1mkkv2caiqbdbbd256c4dirfi4kwsacv-guile-2.2.6/bin/guile -s ${dir}$tst > FAIL: tests/basic.scm > > > This is from milano-guix-1, which has 32 cores. I'm a bit confused as to > what is actually causing the test to fail. I'm guessing it could be > timing out, but I can't see anything looking at the time the test takes > to run. I've now tried running the tests using Guix immediately prior to the recent core-updates merge (d57660c54907cc6fba8b0adf6295fd2311ada6cf), and immediately after the merge (cf3d1763ede1a329c2bc932c84591ab594bb6c96) and the tests passed before, and failed afterwards. I've also tried running the tests manually, I did see a couple of times a failure that mentioned about "Too many open files" [1]. I then attempted to raise the limit for open files, I think using prlimit like `prlimit --nofile=8096:8096 --pid GUIX_DAEMON_PID` did the trick, and that meant that I built the package sucessfully. I'm thinking now that there's a relationship between the number of cores the tests are run with, and the required file descriptors. Also, I'm pretty sure this behaviour changed when core-updates was merged. I'll close this bug for now, as I've found a way to build the package. 1: make check-TESTS make[2]: Entering directory '/home/cbaines/fibers-1.0.0' assert #f equal to #f: ok assert #t terminates: ok assert (false-if-exception (begin (run-fibers) #t)) equal to #f: ok assert terminates: (run-fibers (lambda () (sleep 1)) #:drain? #t): ok (1.065373625 s) assert terminates: (run-fibers (lambda () (do-times 1 (spawn-fiber (lambda () #t)))) #:drain? #t): ok (0.099213566 s) assert terminates: (run-fibers (lambda () (do-times 10 (spawn-fiber (lambda () #t)))) #:drain? #t): ok (0.25544907 s) assert terminates: (run-fibers (lambda () (do-times 100 (spawn-fiber (lambda () #t)))) #:drain? #t): ok (0.072169616 s) assert terminates: (run-fibers (lambda () (do-times 1000 (spawn-fiber (lambda () #t)))) #:drain? #t): ok (0.02872572 s) assert terminates: (run-fibers (lambda () (do-times 10000 (spawn-fiber (lambda () #t)))) #:drain? #t): ok (0.099789859 s) assert terminates: (run-fibers (lambda () (do-times 100000 (spawn-fiber (lambda () #t)))) #:drain? #t): ok (0.560994013 s) assert terminates: (run-fibers (lambda () (do-times 100000 (spawn-fiber (lambda () #t) #:parallel? #t))) #:drain? #t): ok (0.913570257 s) assert terminates: (run-fibers (lambda () (do-times 100000 (spawn-fiber loop-to-1e4))) #:drain? #t): ok (7.429164661 s) assert terminates: (run-fibers (lambda () (do-times 100000 (spawn-fiber loop-to-1e4 #:parallel? #t))) #:drain? #t): ok (1.135422681 s) assert terminates: (run-fibers (lambda () (do-times 1 (spawn-fiber (lambda () (sleep 1))))) #:drain? #t): ok (1.020960002 s) assert terminates: (run-fibers (lambda () (do-times 10 (spawn-fiber (lambda () (sleep 1))))) #:drain? #t): ok (1.065859212 s) assert terminates: (run-fibers (lambda () (do-times 100 (spawn-fiber (lambda () (sleep 1))))) #:drain? #t): Backtrace: In ice-9/boot-9.scm: 222:29 19 (map1 (15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30)) 222:29 18 (map1 (16 17 18 19 20 21 22 23 24 25 26 27 28 29 30)) 222:29 17 (map1 (17 18 19 20 21 22 23 24 25 26 27 28 29 30)) 222:29 16 (map1 (18 19 20 21 22 23 24 25 26 27 28 29 30)) 222:29 15 (map1 (19 20 21 22 23 24 25 26 27 28 29 30)) 222:29 14 (map1 (20 21 22 23 24 25 26 27 28 29 30)) 222:29 13 (map1 (21 22 23 24 25 26 27 28 29 30)) 222:29 12 (map1 (22 23 24 25 26 27 28 29 30)) 222:29 11 (map1 (23 24 25 26 27 28 29 30)) 222:29 10 (map1 (24 25 26 27 28 29 30)) 222:29 9 (map1 (25 26 27 28 29 30)) 222:29 8 (map1 (26 27 28 29 30)) 222:29 7 (map1 (27 28 29 30)) 222:29 6 (map1 (28 29 30)) 222:29 5 (map1 (29 30)) 222:17 4 (map1 (30)) In fibers/internal.scm: 149:14 3 (make-scheduler #:parallelism _ #:prompt-tag _) In fibers/epoll.scm: 94:31 2 (epoll-create #:close-on-exec? _ #:maxevents _) 53:14 1 (make-wake-pipe) In unknown file: 0 (pipe) ERROR: In procedure pipe: In procedure pipe: Too many open files FAIL: tests/basic.scm