Hello Guix!
We often get evaluation errors for ‘core-updates’, where the build log
reveals that this is due to a build timeout while building the Guix
instance that will be used for the evaluation. Example:
--8<---------------cut here---------------start------------->8---
building of `/gnu/store/x9dyzywwmsp8vmpvpx54yhcnz7rqin0l-asciidoc-9.1.0.drv'
timed out after 3600 seconds of silence
cannot build derivation
`/gnu/store/bl7aq8999lmp6flbyw3k656m522jmcl3-git-2.39.1.drv': 1 dependencies
couldn't be built
cannot build derivation
`/gnu/store/ldajjyvb4np1zq9l9s09j0dpsbpscpan-gnulib-2022-12-06-1.440b528.drv':
1 dependencies couldn't be built
cannot build derivation
`/gnu/store/fdks470j7xjw3dc6fiyw15hdsxj6cdbc-guile-gnutls-3.7.11.drv': 1
dependencies couldn't be built
cannot build derivation
`/gnu/store/71pl6a38bd0b81qgi45wz2ymvlv0x7xn-guix-cli-core.drv': 1 dependencies
couldn't be built
[...]
cannot build derivation
`/gnu/store/m7r73wypxhhmv8cqza1x8g2zyq9k1xpg-profile.drv': 1 dependencies
couldn't be built
[...]
ERROR:
1. &store-protocol-error:
message: "build of
`/gnu/store/m7r73wypxhhmv8cqza1x8g2zyq9k1xpg-profile.drv' failed"
status: 101
--8<---------------cut here---------------end--------------->8---
(From <https://ci.guix.gnu.org/eval/233402/log/raw>.)
Likewise for the ‘guile’ jobset:
--8<---------------cut here---------------start------------->8---
exporting path `/gnu/store/m2hyx7qk2j1bsvpj1qv89701klv8kqkk-guix-command'
exporting path
`/gnu/store/vlm7401d5jvna6j7qdxhcr581cd8g8vh-guix-daemon-1.4.0-4.01fd830'
exporting path `/gnu/store/zv3c0anfj085d2lyxh4g4aahhczmcaj8-guix-daemon'
exporting path `/gnu/store/f26rw4haizf2h126k9ja9wk31cm49mj0-guix-17bd02433'
exporting path `/gnu/store/wc736va72zl2zz36817ahf3kc5fkfr69-inferior-script.scm'
building of `/gnu/store/yq9r44lic8cn4nphksbi5s3ppwfcsh1n-guile.drv' timed out
after 3600 seconds of silence
cannot build derivation
`/gnu/store/nrcsvww8j24rjzyin90w76qgbkgphhvp-profile.drv': 1 dependencies
couldn't be built
Backtrace:
In ice-9/boot-9.scm:
1752:10 12 (with-exception-handler _ _ #:unwind? _ # _)
In unknown file:
11 (apply-smob/0 #<thunk 7fd8cbe13340>)
In ice-9/boot-9.scm:
724:2 10 (call-with-prompt _ _ #<procedure default-prompt-handle?>)
In ice-9/eval.scm:
619:8 9 (_ #(#(#<directory (guile-user) 7fd8cbe16c80>)))
In cuirass/ui.scm:
104:10 8 (run-cuirass-command _ . _)
In cuirass/scripts/evaluate.scm:
105:27 7 (cuirass-evaluate _)
In ice-9/boot-9.scm:
1752:10 6 (with-exception-handler _ _ #:unwind? _ # _)
In guix/store.scm:
658:37 5 (thunk)
2123:25 4 (run-with-store #<store-connection 256.99 7fd8cad09dc0> ?)
In cuirass/scripts/evaluate.scm:
87:8 3 (_ _)
In guix/store.scm:
1995:38 2 (_ #<store-connection 256.99 7fd8a33e6d70>)
1421:15 1 (_ #<store-connection 256.99 7fd8a33e6d70> _ _)
In ice-9/boot-9.scm:
1685:16 0 (raise-exception _ #:continuable? _)
ice-9/boot-9.scm:1685:16: In procedure raise-exception:
ERROR:
1. &store-protocol-error:
message: "build of
`/gnu/store/nrcsvww8j24rjzyin90w76qgbkgphhvp-profile.drv' failed"
status: 101
--8<---------------cut here---------------end--------------->8---
Building this particular derivation is quick though:
--8<---------------cut here---------------start------------->8---
$ time guix build /gnu/store/yq9r44lic8cn4nphksbi5s3ppwfcsh1n-guile.drv --check
The following derivation will be built:
/gnu/store/yq9r44lic8cn4nphksbi5s3ppwfcsh1n-guile.drv
building /gnu/store/yq9r44lic8cn4nphksbi5s3ppwfcsh1n-guile.drv...
(repl-version 0 1 1)
(values (value
"/gnu/store/rgk1sc2zvllf7cgbyj5g28b9v2x6nvn3-guile/share/guile/site/3.0"))
successfully built /gnu/store/yq9r44lic8cn4nphksbi5s3ppwfcsh1n-guile.drv
successfully built /gnu/store/yq9r44lic8cn4nphksbi5s3ppwfcsh1n-guile.drv
/gnu/store/rgk1sc2zvllf7cgbyj5g28b9v2x6nvn3-guile
real 0m1.253s
user 0m0.751s
sys 0m0.034s
--8<---------------cut here---------------end--------------->8---
So the problem must be elsewhere.
One thing is that this particular .drv is quite big:
--8<---------------cut here---------------start------------->8---
$ guix size /gnu/store/yq9r44lic8cn4nphksbi5s3ppwfcsh1n-guile.drv
store item total self
/gnu/store/wjr1sqxci75jfkvwzmmvlgypkyp3fvqi-guix-17bd024 105.0
105.0 42.9%
/gnu/store/6b3fp2kwqxw7cvnh6jz9g49n9k2n5avy-guix-packages-base-source 36.2
36.2 14.8%
/gnu/store/h3hjni2bd8f5kbn8w0g2xx2jnagfynnr-guile-e2ed33e 29.0
29.0 11.8%
/gnu/store/gfb26xn5f2qyrxzv847cd6iql6h8igh0-packages 23.1
23.1 9.4%
/gnu/store/dj8rq4jd8qgk4k1hzg8djcvi6hlbdb7m-doc 22.3
22.3 9.1%
/gnu/store/a5z192qxni40ly92cknwxkpnxc8zxfgf-guix 7.8
7.8 3.2%
/gnu/store/f8wg2y3rrh4dgi6znjrv8a1l4ymkc7rb-guix-packages-source 2.8
2.8 1.2%
/gnu/store/8iwm8x6472xnf7g6hfxzw029gxm1qbkq-guix-system-source 2.5
2.5 1.0%
/gnu/store/2dxbf11shgvs1cgvzz6wpnfra97f0sfw-guix-extra-source 2.5
2.5 1.0%
/gnu/store/q57az26zdgafic5b8xsbxlh4iwddvr86-doc 2.1
2.1 0.9%
[…]
/gnu/store/0mxnx8l4fgigvd7gakwdk6hc6im4wnai-disarchive-mirrors 0.0
0.0 0.0%
total: 244.8 MiB
--8<---------------cut here---------------end--------------->8---
Merely transferring it for offloading takes time; depending on machine
load, perhaps it can hit the 1h max-silent timeout? That’d mean the
throughput is below 70 KiB/s. Plausible?
The closure of
/gnu/store/x9dyzywwmsp8vmpvpx54yhcnz7rqin0l-asciidoc-9.1.0.drv is
3.0 MiB and it builds in 4 seconds, so there must be something else
going on, perhaps a bug in libssh/Guile-SSH leading to stale
connections?
Thoughts?
Ludo’.
