| 10 Mar 2026 |
 Puna | i think at that point you're just reinventing assertOneOf, but without the multi-line printing 😅 | 06:39:14 |
 amaan | true...then that's fine | 06:39:24 |
| amaan | (i do like the presentation a little bit more but it's nbd) | 06:40:02 |
| amaan | ok, just pushed that | 06:41:54 |
| Puna | seems fine to me, but it's not my package. maybe someone else here who has an opinion on exposing jemalloc's page size setting like this?
https://github.com/NixOS/nixpkgs/pull/498442 | 07:54:27 |
 Alyssa Ross | IMO we should always use the highest possible page size for jemalloc | 11:08:36 |
| Alyssa Ross | so this is a good change | 11:08:41 |
| Puna | kernel apparently also has a setting for 256k page size, CONFIG_PPC_256K_PAGES for POWER. says it needs patched binutils though. | 11:27:53 |
| Puna | not something i wanna test 😅 | 11:28:07 |
|  Aelin joined the room. | 16:11:19 |
| Aelin | I've never seen a 256k page size POWER system, 64k is the standard nowadays so that change is very reasonable | 16:12:34 |
| Aelin | so, ppc64 VMs are special because they basically scan all disks (which should use MBR, but SLOF can also handle GPT) for a ppc prep boot partition, which is the partition that GRUB is installed to | 16:14:24 |
| Aelin | the prep boot partition needs to be marked as bootable | 16:14:34 |
| Aelin | this is entirely unlike any physical ppc64 hardware which in OPAL just all use petitboot to my knowledge | 16:15:05 |
| 11 Mar 2026 |
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