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bug#41077: [feature/native-comp] virtual memory exhausted (was: bug#4107
From: |
Kévin Le Gouguec |
Subject: |
bug#41077: [feature/native-comp] virtual memory exhausted (was: bug#41077: [feature/native-comp] Segfaults when compiling ELC+ELN) |
Date: |
Wed, 06 May 2020 16:15:17 +0200 |
User-agent: |
Gnus/5.13 (Gnus v5.13) Emacs/28.0.50 (gnu/linux) |
Andrea Corallo <akrl@sdf.org> writes:
> All versions should work but at this point I'd go for releases/gcc-10 or
> releases/gcc-9.3.0
Thanks, I went with 9.3.0. Now the "ELC+ELN" steps start smoothly,
unfortunately I don't think the little buster can finish the job :(
I first ran a -j2 build which crashed after 14 hours while compiling
char-fold.elc. I didn't get anything more precise than "virtual memory
exhausted: Cannot allocate memory" on the console.
Thinking it might help to compile only one file at a time, after
removing the temporary files related to char-fold.el[1], I started a -j1
build which picked up where the previous build left off, i.e. with
char-fold.elc.
Unfortunately that file alone seems to be too much for my system to
handle; compilation ended with the same "virtual memory exhausted" error
after less than an hour and a half.
I recorded some information related to memory usage during this second
run (cf. attached graph[2]). My takeway is that at some point, the
compilation process's memory usage skyrockets, until the system's memory
(2GB RAM + 2GB swap) is completely exhausted.
I haven't reopened/created a new issue because I'm not sure there's a
way forward; let me know if you'd like me to perform some more in-depth
profiling.
[1] lisp/char-fold.elc… and lisp/eln-i686-pc-linux-gnu-…/char-fold….eln.
[2] The graph shows:
- the VSZ of the process using the most virtual memory,
- the RSS of the process using the most virtual memory,
- the "available" column shown by free(1) on the "Mem:" line,
- the "used" column shown by free(1) on the "Swap:" line,
- the name of the process using the most virtual memory.
Measurements were taken every minute. I can upload the sources for
this graph (measurement script, measurements, and plotting script)
if that helps.
memory.png
Description: PNG image
- bug#41077: [feature/native-comp] Segfaults when compiling ELC+ELN, Kévin Le Gouguec, 2020/05/04
- bug#41077: [feature/native-comp] Segfaults when compiling ELC+ELN, Andrea Corallo, 2020/05/04
- bug#41077: [feature/native-comp] Segfaults when compiling ELC+ELN, Andrea Corallo, 2020/05/04
- bug#41077: [feature/native-comp] Segfaults when compiling ELC+ELN, Kévin Le Gouguec, 2020/05/04
- bug#41077: [feature/native-comp] Segfaults when compiling ELC+ELN, Andrea Corallo, 2020/05/04
- bug#41077: [feature/native-comp] virtual memory exhausted (was: bug#41077: [feature/native-comp] Segfaults when compiling ELC+ELN),
Kévin Le Gouguec <=
- Message not available
- bug#41077: [feature/native-comp] virtual memory exhausted, Andrea Corallo, 2020/05/06
- bug#41077: [feature/native-comp] virtual memory exhausted, Kévin Le Gouguec, 2020/05/10
- bug#41077: [feature/native-comp] virtual memory exhausted, Andrea Corallo, 2020/05/10
- bug#41077: [feature/native-comp] virtual memory exhausted, Kévin Le Gouguec, 2020/05/10
- bug#41077: [feature/native-comp] virtual memory exhausted, Andrea Corallo, 2020/05/10
- bug#41077: [feature/native-comp] virtual memory exhausted, Kévin Le Gouguec, 2020/05/11
- bug#41077: [feature/native-comp] virtual memory exhausted, Andrea Corallo, 2020/05/11