kernelbuilder / builds / 2b8cae4259cc

linux 6.6.74 x86_64kvm_guestboot OK

+CHECKPOINT_RESTORE +CRYPTO_USER_API +CRYPTO_USER_API_SKCIPHER +MEMCG +NET_SCH_ETS +PACKET +RANDOMIZE_BASE +SYSVIPC +UNIX98_PTYS +USER_NS · 2026-10-18 12:57 UTC · 2841 objects · 8m26s · 3.8/4 cores busy

bzImage 13.0 MB modules.tar.zst 79 kB vmlinux (ELF, PVH) 50.9 MB .config 140 kB build log rebuild with changes

CONFIG_PACKET was already on in the base config
CONFIG_RANDOMIZE_BASE was already on in the base config
CONFIG_SYSVIPC was already on in the base config
CONFIG_UNIX98_PTYS was already on in the base config
toolchain: building the compiler image with apt (no vertex cache yet)
seed: none at kbuild-seed/linux-6.6.74-x86_64-901358ea19930336.tzst
seed: pushed kbuild-seed/linux-6.6.74-x86_64-901358ea19930336.tzst (384M)
boot test: OK via firecracker/kvm in 1s -- KERNELBUILDER_BOOT_OK Linux version 6.6.74 (builder@linux) (gcc (Ubuntu 13.3.0-6ubuntu2~24.04.1) 13.

Timeline

start container7s
hydrate cache11s
extract source10s
configure + validate5s
compile7m01s
push cache45s
upload5s
finalize1s

Config vs kvm_guest base 16 options differ

option	base	this build
`CHECKPOINT_RESTORE`	`n`	`y`	requested
`CRYPTO_USER_API`	`-`	`y`	requested
`CRYPTO_USER_API_SKCIPHER`	`n`	`y`	requested
`MEMCG`	`n`	`y`	requested
`NET_SCH_ETS`	`n`	`y`	requested
`USER_NS`	`n`	`y`	requested
`CGROUP_WRITEBACK`	`-`	`y`	dependency
`CRYPTO_ANUBIS`	`-`	`n`	dependency
`CRYPTO_ARC4`	`-`	`n`	dependency
`CRYPTO_KHAZAD`	`-`	`n`	dependency
`CRYPTO_SEED`	`-`	`n`	dependency
`CRYPTO_TEA`	`-`	`n`	dependency
`CRYPTO_USER_API_ENABLE_OBSOLETE`	`-`	`y`	dependency
`MEM_SOFT_DIRTY`	`-`	`n`	dependency
`MEMCG_KMEM`	`-`	`y`	dependency
`PROC_CHILDREN`	`n`	`y`	dependency

Spec

The normalized build spec: POST /api/build with this body (plus the page's CSRF token) returns job 2b8cae4259cc again without rebuilding.

{
  "version": "6.6.74",
  "arch": "x86_64",
  "base": "kvm_guest",
  "modules": "base",
  "enable": [
    "CONFIG_CHECKPOINT_RESTORE",
    "CONFIG_CRYPTO_USER_API",
    "CONFIG_CRYPTO_USER_API_SKCIPHER",
    "CONFIG_MEMCG",
    "CONFIG_NET_SCH_ETS",
    "CONFIG_PACKET",
    "CONFIG_RANDOMIZE_BASE",
    "CONFIG_SYSVIPC",
    "CONFIG_UNIX98_PTYS",
    "CONFIG_USER_NS"
  ],
  "disable": [],
  "extra": ""
}