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boot: drop pci=realloc from default/toram GRUB entries, fold into troubleshooting entry

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pci=realloc was forcing a full PCI resource reallocation on every default
and toram boot, added as a GPU BAR workaround for BIOS without Above 4G
Decoding. On a dense NVMe-backplane server it exhausted MMIO32 space and
silently dropped 4 of 6 NVMe controllers from the OS even though the BIOS
and lspci both saw them fine. It now only applies to the no-GUI/gsp-off
troubleshooting entry, alongside a bible-local ADR for the two prior
rounds of SAT/blackbox durability work.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
This commit is contained in:
Mikhail Chusavitin
2026-07-28 09:34:25 +03:00
co-authored by Claude Sonnet 5
parent 781cf5dcbf
commit e036a9c7b8
8 changed files with 274 additions and 8 deletions
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bible-local/decisions/README.md
+3
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@@ -8,3 +8,6 @@ One file per decision, named `YYYY-MM-DD-short-topic.md`.
| 2026-04-01 | Treat memtest as explicit ISO content | active |
| 2026-04-29 | Treat embedded submodules as read-only | active |
| 2026-06-12 | Skip PCIe link-speed warnings for disabled devices | active |
| 2026-07-27 | Split the NVIDIA Bandwidth SAT into per-socket passes before the all-GPU pass | active |
| 2026-07-27 | Stream SAT job output live to disk and kick blackbox sync on job completion | active |
| 2026-07-28 | Move pci=realloc out of the default/toram/no-GUI GRUB entries | active |