Support fork in LiteBox userland - #1483

Merged

Weidong Cui (wdcui) merged 21 commits into

uliteboxfrom

wdcui/ulitebox/fork

Oct 3, 2026

Commits on Oct 3, 2026

Continue fork children in fresh runners from a parent snapshot

Weidong Cui (wdcui)
and
Copilot
committed
3c510ce
Address fork review findings

Weidong Cui (wdcui)
and
Copilot
committed
c94672b
Keep guest placement clear of host mappings and drop the fork option

Weidong Cui (wdcui)
and
Copilot
committed
ac363d2
Keep fork image restore next to the image writer

Weidong Cui (wdcui)
and
Copilot
committed
c6e8c4c
Speed up fork image restore and guest file loading

Weidong Cui (wdcui)
and
Copilot
committed
590160e
Pause sibling threads while forking a multi-threaded process

Weidong Cui (wdcui)
and
Copilot
committed
c3e18e5
Fix fork review findings and speed up the image transfer

Weidong Cui (wdcui)
and
Copilot
committed
e3b7fb6
Fix second-round fork review findings and send 1 MiB image writes

Weidong Cui (wdcui)
and
Copilot
committed
c9f6262
Keep mremap growth from merging areas and race concurrent forks in tests

Weidong Cui (wdcui)
and
Copilot
committed
a38d512
Pass the seccomp scope when continuing a forked child

Weidong Cui (wdcui)
and
Copilot
committed
ea3a623
Document that a partial host mremap move ends in the copy fallback's panic

Weidong Cui (wdcui)
and
Copilot
committed
26c0424
Copy instead of failing when a host mapping holds the mremap destination

Weidong Cui (wdcui)
and
Copilot
committed
9dc9a2f
Explain why fork does not copy vector state yet

Weidong Cui (wdcui)
and
Copilot
committed
7f9f7a1
Raise file reads and writes to 16 shared-buffer slots

Weidong Cui (wdcui)
and
Copilot
committed
5cb94c0
Drop the redundant program startup dispatch test

Weidong Cui (wdcui)
and
Copilot
committed
67e71ce
Drop the wait timeout test and its mock clock helper

Weidong Cui (wdcui)
and
Copilot
committed
f0bb112
Drop the single-variant child start source and its wire tag

Weidong Cui (wdcui)
and
Copilot
committed
205659a
Drop process image transfer tests covered by runner tests

Weidong Cui (wdcui)
and
Copilot
committed
8af4f3d
Trim the slot merge test to its range checks

Weidong Cui (wdcui)
and
Copilot
committed
d6b038a
Name the runner image constructor after the launcher method

Weidong Cui (wdcui)
and
Copilot
committed
38b1762
Drop the pending child image drop test covered by the budget test

Weidong Cui (wdcui)
and
Copilot
committed
9d8748e

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Support fork in LiteBox userland - #1483

Support fork in LiteBox userland#1483
Weidong Cui (wdcui) merged 21 commits into
uliteboxfrom
wdcui/ulitebox/fork

Commits on Oct 3, 2026

Continue fork children in fresh runners from a parent snapshot

Address fork review findings

Keep guest placement clear of host mappings and drop the fork option

Keep fork image restore next to the image writer

Speed up fork image restore and guest file loading

Pause sibling threads while forking a multi-threaded process

Fix fork review findings and speed up the image transfer

Fix second-round fork review findings and send 1 MiB image writes

Keep mremap growth from merging areas and race concurrent forks in tests

Pass the seccomp scope when continuing a forked child

Document that a partial host mremap move ends in the copy fallback's panic

Copy instead of failing when a host mapping holds the mremap destination

Explain why fork does not copy vector state yet

Raise file reads and writes to 16 shared-buffer slots

Drop the redundant program startup dispatch test

Drop the wait timeout test and its mock clock helper

Drop the single-variant child start source and its wire tag

Drop process image transfer tests covered by runner tests

Trim the slot merge test to its range checks

Name the runner image constructor after the launcher method

Drop the pending child image drop test covered by the budget test