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charset=UTF-8 Content-Transfer-Encoding: quoted-printable On Mon, 23 May 2022 16:10:04 +0200 Maxime Devos wrote: > Denis 'GNUtoo' Carikli schreef op ma 23-05-2022 om 15:40 [+0200]: > > Hi, > >=20 > > I've now made some free space. So we have: > > - 1GiB of RAM and 16GiB of swap: > > =C2=A0 > # cat /proc/swaps=20 > > =C2=A0 > > > Filename Type > > Size Used Priority > > =C2=A0 > /dev/mmcblk0p1=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0= =C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2= =A0=C2=A0=C2=A0=C2=A0=C2=A0 > > partition 16777212 16384 -2 >=20 > Could you check if it OOMs (with "sudo dmesg")? > There were some problems in the past (maybe present too?) on i?86 with > too much memory usage, I've looked rapidly and I didn't see any OOMs. I've now used dmesg -c and I'll launch the following command: > guix pull --commit=3Df0e9048e98f0789aa98de88984f4ee0fc9687f52 -M 1 -c 1 And I'll see if it fails in the same way. I also use a custom kernel and while I'm confident that the code modifications have no impact here, I'm unsure if there are compilation options related to OOM messages or not. And here I probably lack some knowledge but I was under the impression that swap was handled transparently by the kernel (through page tables, virtual memory, and so on), so applications should not notice the difference apart from the huge performance drop. Though one issue could be that maybe for some reason the process wants to use more than 3GiB of memory and at least i686 processes are limited to 4GiB if you use an x86_64 kernel and about 3GiB if you use an i686 kernel. So maybe it's somehow similar for armv7h? I also use Guix on an i686 installation of Parabola on my x86 laptop, and I had issues with that in the past but recently I didn't notice issues so at least if they are still there they are less frequent. Maybe the difference is that on this ARM computer, I installed Guix 1.3.0 recently, and I didn't manage to do a guix pull that work yet, so there is more diff between the current state (1.3.0) and where it wants to go (close to HEAD on the master branch). As of why a bigger diff would increase the probability of it failing I've no idea. What I could do could be to try to reproduce on an i686 Parabola VM, this way it would be easier for people to reproduce. Though it's not possible yet to pacstrap Parabola installations from Guix (I've some WIP code for that but I need to fix bugs in it before being able to send it). Denis. --Sig_/sUT5Khzi/i9GVEB9iIu...m Content-Type: application/pgp-signature Content-Description: OpenPGP digital signature -----BEGIN PGP SIGNATURE----- iQIzBAEBCAAdFiEEeC+d2+Nrp/PU3kkGX138wUF34mMFAmKLxKUACgkQX138wUF3 4mMScxAApLHWhwGgrxwDhnp7EsaLE3kzuoZT25MPU4oY1q1Pl8ZkUt9ImRrklurN lltJH0pKNPUKOyPdn7Rn6gjlSYKuKm+Z5t8fBm/JNL/VoQcNuN0ipW5yPBcRK25S 8ZvXFNVwGG9EKuK6ebmVTL+1XMziIzGtIe3u5DKRboq18qZv5pcDEFgmYurvildF svm1tNFDxD5L0Fyhsmu+2FFn8HH6Gho73yeCTR3ZaBEpehBKNrU/asfVE6ua3+CT 2t+0SqAfuxlfSHcQyeOoc4s+A7SqwxWXUAIcqmvyMMAElho5i2O4f/4LN3PHUt20 JRGN8BUYv98rS+VCCryFBYsqafEUVaoc/foLGvclRuAg52SfYm/rd8wFNG3mIeaB famWqmkO8XOkdHlNC1wisGX/nwEMK+fpFgTaOKyKs+xod8X3arazJwIIkR0vhGWt YeMBbjzAgctDl4L1djcJ5LQ7q2sw4vm3OVA7fqO9JUm3/uhnsDS74nNOTqbyWfAn 3xQIkevWFy8iuaGDdJkH8TKKpk9GVXRxnpOVv06vmu+tgs2ACDudSE2GW8f+Dk8a YdXmnbwjQ3oy/aPiiD/zqX2KxsVRqeBMKYb1OpUxhmCOrXSVijP5719gZeR2+PCs ivQQadsa+eoyAo2hueKFquYmML9s249slpxl+GIxoJY7L1xDZO0= =qDpb -----END PGP SIGNATURE----- --Sig_/sUT5Khzi/i9GVEB9iIu...m--