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| author | Andreas Kling <kling@serenityos.org> | 2022-08-18 20:59:04 +0200 |
|---|---|---|
| committer | Andreas Kling <kling@serenityos.org> | 2022-08-18 20:59:04 +0200 |
| commit | e1476788adfd79e9e3f54afba33645c370a82ec5 (patch) | |
| tree | c253aae0486a0925364637969133ff4f66fcca87 /Kernel/Syscalls | |
| parent | 81ee870c9be0a97fbb889d16789a19f9d52a773e (diff) | |
| download | serenity-e1476788adfd79e9e3f54afba33645c370a82ec5.zip | |
Kernel: Make sys$anon_create() allocate physical pages immediately
This fixes an issue where a sharing process would map the "lazy
committed page" early and then get stuck with that page even after
it had been replaced in the VMObject by a page fault.
Regressed in 27c1135d307efde8d9baef2affb26be568d50263, which made it
happen every time with the backing bitmaps used for WebContent.
Diffstat (limited to 'Kernel/Syscalls')
| -rw-r--r-- | Kernel/Syscalls/anon_create.cpp | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/Kernel/Syscalls/anon_create.cpp b/Kernel/Syscalls/anon_create.cpp index 2c57148f1e..334e7e9797 100644 --- a/Kernel/Syscalls/anon_create.cpp +++ b/Kernel/Syscalls/anon_create.cpp @@ -26,7 +26,7 @@ ErrorOr<FlatPtr> Process::sys$anon_create(size_t size, int options) return EINVAL; auto new_fd = TRY(allocate_fd()); - auto vmobject = TRY(Memory::AnonymousVMObject::try_create_purgeable_with_size(size, AllocationStrategy::Reserve)); + auto vmobject = TRY(Memory::AnonymousVMObject::try_create_purgeable_with_size(size, AllocationStrategy::AllocateNow)); auto anon_file = TRY(AnonymousFile::try_create(move(vmobject))); auto description = TRY(OpenFileDescription::try_create(move(anon_file))); |