--- Begin Message ---
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Subject: |
Offloading + timeout + --keep-going leads to assertion failure |
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Date: |
Mon, 04 Nov 2019 21:45:47 +0100 |
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User-agent: |
Gnus/5.13 (Gnus v5.13) Emacs/26.3 (gnu/linux) |
Hello,
An offloaded build that times out in the presence of ‘--keep-going’
leads to an assertion failure. To reproduce, set up offloading and run
something like this:
--8<---------------cut here---------------start------------->8---
$ guix build vim --no-substitutes --timeout=5 --keep-going
The following derivation will be built:
/gnu/store/5mnnym9xwl145s1b88aqfmrka810w9ci-vim-8.1.0644.drv
process 4277 acquired build slot '/var/guix/offload/localhost:2222/0'
load on machine 'localhost' is 0.04 (normalized: 0.01)
building /gnu/store/5mnnym9xwl145s1b88aqfmrka810w9ci-vim-8.1.0644.drv...
sending 1 store item (48 MiB) to 'localhost'...
exporting path
`/gnu/store/mlwyk5vcja0gqm20xxj8mwgf0fbqv8cz-vim-8.1.0644-checkout'
building of `/gnu/store/5mnnym9xwl145s1b88aqfmrka810w9ci-vim-8.1.0644.drv'
timed out after 5 seconds
build of /gnu/store/5mnnym9xwl145s1b88aqfmrka810w9ci-vim-8.1.0644.drv failed
View build log at
'/var/log/guix/drvs/5m/nnym9xwl145s1b88aqfmrka810w9ci-vim-8.1.0644.drv.bz2'.
guix build: error: corrupt input while restoring archive from #<closed: file
7ff2769cdc40>
--8<---------------cut here---------------end--------------->8---
The last error is due to premature EOF on the client socket: the child
‘guix-daemon’ process crashed, and thus ‘guix build’ gets EPIPE on its
client socket. Here’s how the ‘guix-daemon’ process crashed:
--8<---------------cut here---------------start------------->8---
$ tail -3 /var/log/guix-daemon.log
accepted connection from pid 4270, user ludo
accepted connection from pid 4277, user root
guix-daemon: nix/libstore/build.cc:3448: void nix::Worker::run(const Goals&):
Assertion `!settings.keepGoing || children.empty()' failed.
--8<---------------cut here---------------end--------------->8---
In Cuirass, this manifests itself with EPIPE while writing to the client
socket:
--8<---------------cut here---------------start------------->8---
2019-11-04T20:11:26 fatal: uncaught exception 'system-error' in
'restart-builds' fiber!
2019-11-04T20:11:26 exception arguments: ("fport_write" "~A" ("Broken pipe")
(32))
In ice-9/boot-9.scm:
829:9 5 (catch _ _ #<procedure 7f79d663c320 at cuirass/utils.s?> ?)
751:25 4 (dispatch-exception 0 system-error ("fport_write" "~A" ?))
In cuirass/utils.scm:
183:8 3 (_ _ "fport_write" "~A" ("Broken pipe") (32))
In ice-9/boot-9.scm:
829:9 2 (catch #t #<procedure 7f79cc7e41c0 at cuirass/utils.sc?> ?)
In cuirass/utils.scm:
184:22 1 (_)
In unknown file:
0 (make-stack #t)
ERROR: In procedure make-stack:
In procedure fport_write: Broken pipe
--8<---------------cut here---------------end--------------->8---
This bug is almost certainly a consequence of commit
ada9a19a2dca74feafcf24df1152abd685d4142f.
To be continued…
Ludo’.
--- End Message ---
--- Begin Message ---
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Subject: |
Re: bug#38062: Offloading + timeout + --keep-going leads to assertion failure |
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Date: |
Mon, 04 Nov 2019 23:38:12 +0100 |
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User-agent: |
Gnus/5.13 (Gnus v5.13) Emacs/26.3 (gnu/linux) |
Hi,
Ludovic Courtès <address@hidden> skribis:
> An offloaded build that times out in the presence of ‘--keep-going’
> leads to an assertion failure. To reproduce, set up offloading and run
> something like this:
>
> $ guix build vim --no-substitutes --timeout=5 --keep-going
> The following derivation will be built:
> /gnu/store/5mnnym9xwl145s1b88aqfmrka810w9ci-vim-8.1.0644.drv
> process 4277 acquired build slot '/var/guix/offload/localhost:2222/0'
> load on machine 'localhost' is 0.04 (normalized: 0.01)
> building /gnu/store/5mnnym9xwl145s1b88aqfmrka810w9ci-vim-8.1.0644.drv...
> sending 1 store item (48 MiB) to 'localhost'...
> exporting path
> `/gnu/store/mlwyk5vcja0gqm20xxj8mwgf0fbqv8cz-vim-8.1.0644-checkout'
> building of `/gnu/store/5mnnym9xwl145s1b88aqfmrka810w9ci-vim-8.1.0644.drv'
> timed out after 5 seconds
> build of /gnu/store/5mnnym9xwl145s1b88aqfmrka810w9ci-vim-8.1.0644.drv failed
> View build log at
> '/var/log/guix/drvs/5m/nnym9xwl145s1b88aqfmrka810w9ci-vim-8.1.0644.drv.bz2'.
> guix build: error: corrupt input while restoring archive from #<closed: file
> 7ff2769cdc40>
>
>
> The last error is due to premature EOF on the client socket: the child
> ‘guix-daemon’ process crashed, and thus ‘guix build’ gets EPIPE on its
> client socket. Here’s how the ‘guix-daemon’ process crashed:
>
> $ tail -3 /var/log/guix-daemon.log
> accepted connection from pid 4270, user ludo
> accepted connection from pid 4277, user root
> guix-daemon: nix/libstore/build.cc:3448: void nix::Worker::run(const Goals&):
> Assertion `!settings.keepGoing || children.empty()' failed.
Fixed by af73beeba1fc9effab60b11aea1d7ed8c24e7367.
I’ll update the ‘guix’ package soonish.
Ludo’.
--- End Message ---