vm: enable memory advice syscalls - #33
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Node/V8 actions fail inside the VM with: ```text # Fatal error in , line 0 # Check failed: 0 == ret. ``` A direct guest probe identifies the missing kernel operations: ```text madvise-normal: result=-1 errno=38 (ENOSYS) madvise-dontneed: result=-1 errno=38 (ENOSYS) madvise-free: result=-1 errno=38 (ENOSYS) ``` The compact kernels use `allnoconfig`, and Linux gates these operations on `CONFIG_ADVISE_SYSCALLS`. Enable it in both ARM64 and x86_64 kernels. The repaired ARM64 guest supports all three advice modes, runs ordinary V8 JIT and WebAssembly without special Node flags, and successfully builds and verifies a complete Vite application. Both architecture configurations resolve with memory-advice syscalls enabled.
This was referenced Sep 14, 2026
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Sep 14, 2026
Enable CONFIG_ADVISE_SYSCALLS in the ARM64 and x86_64 VM kernels. The compact kernels use allnoconfig, which otherwise disables madvise and fadvise. Node/V8 requires madvise and fails when it returns ENOSYS. Apply the configuration change from PR #33. Validation: bazel build and bazel test //... passed with --config=remote and Linux-glibc target and host platforms (78 targets, 2 tests). The macOS Virtualization.framework suite passed with tools/e2e.sh vm.
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Node/V8 actions fail inside the VM with:
A direct guest probe identifies the missing kernel operations:
The compact kernels use
allnoconfig, and Linux gates these operations onCONFIG_ADVISE_SYSCALLS. Enable it in both ARM64 and x86_64 kernels.The repaired ARM64 guest supports all three advice modes, runs ordinary
V8 JIT and WebAssembly without special Node flags, and successfully builds
and verifies a complete Vite application. Both architecture configurations
resolve with memory-advice syscalls enabled.