Subject: bug#64197: Segmentation fault while building ‘guix-cli-core.drv’

From: Ludovic Courtès <[email-masked]>
Date: Wed, 21 Jun 2023 15:59:51 +0200

Hi!

Christopher Baines <[email-masked]> skribis:

> Looking at the logs on beid, I see this:
>
> Jun 19 14:54:08 localhost vmunix: [4845598.954703] GC-marker-1[27719]: segfault at 170 ip 00007ffff7e19a25 sp 00007ffff6ad6c70 error 4 in libgc.so.1.5.1[7ffff7e1
> 2000+1c000] likely on CPU 15 (core 15, socket 0)
> Jun 19 14:54:08 localhost vmunix: [4845598.954734] Code: 00 00 00 00 00 49 89 f9 48 89 c8 41 54 41 81 e1 ff 0f 00 00 55 48 89 fd 83 e7 0f 53 4c 89 c9 48 89 f3 48
>  8b 70 30 48 c1 e9 04 <0f> b7 34 4e 49 89 f2 49 09 fa 75 4f 48 8d 4c 08 40 0f b6 31 40 84

Ouch, that’s new, isn’t it?

Could you dig when these failures started appearing?

Seems it didn’t happen on ci.guix at:

  https://ci.guix.gnu.org/jobset/master
  https://ci.guix.gnu.org/jobset/guix

This reminds me of the other GC marker bug you reported.  Is there
anything that could lead to different behaviors?

Thanks,
Ludo’.