GNU bug report logs - #67041
[cuirass] cuirass-web crash

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From: help-debbugs <at> gnu.org (GNU bug Tracking System)
To: Ludovic Courtès <ludo <at> gnu.org>
Cc: tracker <at> debbugs.gnu.org
Subject: bug#64276: closed ([Cuirass] Continuation barrier while serving
 HTTP requests)
Date: Thu, 23 Nov 2023 11:44:02 +0000

[Message part 1 (text/plain, inline)]

Your message dated Thu, 23 Nov 2023 12:43:45 +0100
with message-id <87bkbkd79q.fsf <at> gnu.org>
and subject line Re: bug#67041: [cuirass] cuirass-web crash
has caused the debbugs.gnu.org bug report #67041,
regarding [Cuirass] Continuation barrier while serving HTTP requests
to be marked as done.

(If you believe you have received this mail in error, please contact
help-debbugs <at> gnu.org.)


-- 
67041: https://debbugs.gnu.org/cgi/bugreport.cgi?bug=67041
GNU Bug Tracking System
Contact help-debbugs <at> gnu.org with problems

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From: Ludovic Courtès <ludovic.courtes <at> inria.fr>
To: bug-guix <at> gnu.org
Subject: [Cuirass] Continuation barrier while serving HTTP requests
Date: Sat, 24 Jun 2023 22:59:00 +0200

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’.

[Message part 3 (message/rfc822, inline)]

From: Ludovic Courtès <ludo <at> gnu.org>
To: Maxim Cournoyer <maxim.cournoyer <at> gmail.com>
Cc: guix-sysadmin <guix-sysadmin <at> gnu.org>, 67041-done <at> debbugs.gnu.org
Subject: Re: bug#67041: [cuirass] cuirass-web crash
Date: Thu, 23 Nov 2023 12:43:45 +0100

Ludovic Courtès <ludo <at> gnu.org> skribis:

> This is fixed by Cuirass commit
> 7c697ad7f15c13264615d2b6c9165b21abaf61dd.

Included in the ‘cuirass’ package update in Guix commit
300e9ad43d1f7a10013aa0724ed3aeb7d93500c1, now deployed on berlin and its
x86 build nodes.

Ludo'.

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