I noticed this backtrace: --8<---------------cut here---------------start------------->8--- 2023-06-21 18:28:27 GET /eval/6436191 2023-06-21 18:28:27 In cuirass/http.scm: 2023-06-21 18:28:27 978:25 11 (url-handler _ _) 2023-06-21 18:28:27 202:16 10 (evaluation-html-page ((#:id . 6436191) (# . 0) (. #) ?) ?) 2023-06-21 18:28:27 In cuirass/logging.scm: 2023-06-21 18:28:27 110:18 9 (call-with-time-logging "builds request" #<procedure 7f?>) 2023-06-21 18:28:27 In ice-9/boot-9.scm: 2023-06-21 18:28:27 1752:10 8 (with-exception-handler _ _ #:unwind? _ # _) 2023-06-21 18:28:27 In cuirass/utils.scm: 2023-06-21 18:28:27 124:24 7 (_) 2023-06-21 18:28:27 In cuirass/database.scm: 2023-06-21 18:28:27 1305:2 6 (_ _) 2023-06-21 18:28:27 1245:28 5 (proc _) 2023-06-21 18:28:27 In ice-9/boot-9.scm: 2023-06-21 18:28:27 1685:16 4 (raise-exception _ #:continuable? _) 2023-06-21 18:28:27 In cuirass/utils.scm: 2023-06-21 18:28:27 121:12 3 (_ #<&compound-exception components: (#<&error> #<&orig?>) 2023-06-21 18:28:27 In fibers/operations.scm: 2023-06-21 18:28:27 155:10 2 (perform-operation _) 2023-06-21 18:28:27 In fibers/scheduler.scm: 2023-06-21 18:28:27 386:6 1 (suspend-current-task _) 2023-06-21 18:28:27 In ice-9/boot-9.scm: 2023-06-21 18:28:27 1685:16 0 (raise-exception _ #:continuable? _) 2023-06-21 18:28:27 Attempt to suspend fiber within continuation barrier --8<---------------cut here---------------end--------------->8---
Apparently the starting point is ‘db-get-builds’ throwing an exception, and later on ‘call-with-resource-from-pool’ being unable to suspend as it calls ‘put-message’ to return the resource to the pool. This is with Cuirass commit c74d60d194b4036f5f649ce8b6481b51d8061d89 (the resource pool was introduced earlier, in commit 425ede115e05c5b9864e1c443ade8019fa659c67). Ludo’.
