diff options
| author | Mark Johnston <markj@FreeBSD.org> | 2026-09-29 19:45:25 +0000 |
|---|---|---|
| committer | Mark Johnston <markj@FreeBSD.org> | 2026-09-29 20:01:45 +0000 |
| commit | da0764f23554ef446003b5f2ab4e535a3329b0ab (patch) | |
| tree | ad2b336a37cf10997858581778ccb88215f040bd /sys/conf | |
| parent | eaba5142bdefd6b5b249793f6f8ec3528afb12e3 (diff) | |
vm_swapout: Restore handling of RLIMIT_RSS
In commit 13a1129d700c, I removed the mechanism by which the pagedaemon
signals the swapout thread when page reclamation is unable to keep up
with demand. This is because the swapout thread's main action in this
case is to swap out sleeping processes, but we removed this support.
However, it had the secondary effect of causing the swapout thread to
enforce RLIMIT_RSS when racct is not enabled. Without it, if
racct_enabled is false, nothing ever kicks the swapout thread.
Restore the old behaviour of trying to enforce RLIMIT_RSS when the page
daemon is unable to keep up with demand. I'm not at all convinced this
is a good way to implement the limit, but the change wasn't intentional,
so let's restore it for now.
Fixes: 13a1129d700c ("vm: Remove kernel stack swapping support, part 1")
Reviewed by: olce, kib
MFC after: 2 weeks
Differential Revision: https://reviews.freebsd.org/D56142
Diffstat (limited to 'sys/conf')
| -rw-r--r-- | sys/conf/files | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/sys/conf/files b/sys/conf/files index 495881e7ae0c..9dc3d34f3bd6 100644 --- a/sys/conf/files +++ b/sys/conf/files @@ -5413,7 +5413,7 @@ vm/vm_pager.c standard vm/vm_phys.c standard vm/vm_radix.c standard vm/vm_reserv.c standard -vm/vm_swapout.c optional racct +vm/vm_swapout.c standard vm/vm_unix.c standard vm/vnode_pager.c standard xen/features.c optional xenhvm |