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| author | Konstantin Belousov <kib@FreeBSD.org> | 2023-10-10 00:02:06 +0000 |
|---|---|---|
| committer | Konstantin Belousov <kib@FreeBSD.org> | 2023-10-13 09:26:45 +0000 |
| commit | 39cddbd7a07c182c4f121bea5a6effa36862fc63 (patch) | |
| tree | addbcaeda729c598e40f172681355ed80f6414fc | |
| parent | ac63f7534d0102352bf993ebe2c748ce2ffd432e (diff) | |
| download | src-39cddbd7a07c182c4f121bea5a6effa36862fc63.tar.gz src-39cddbd7a07c182c4f121bea5a6effa36862fc63.zip | |
arm64: do not disable the kern.kstack_pages tunable on arm64
Add a comment explaining what is not quite correct with arm64 and riscv.
Reviewed by: jhb, markj
Sponsored by: The FreeBSD Foundation
MFC after: 1 week
Differential revision: https://reviews.freebsd.org/D42143
| -rw-r--r-- | sys/kern/subr_param.c | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/sys/kern/subr_param.c b/sys/kern/subr_param.c index f7d6cf848424..b7dbf606f492 100644 --- a/sys/kern/subr_param.c +++ b/sys/kern/subr_param.c @@ -170,9 +170,13 @@ init_param1(void) { TSENTER(); -#if !defined(__arm64__) + + /* + * arm64 and riscv currently hard-code the thread0 kstack size + * to KSTACK_PAGES, ignoring the tunable. + */ TUNABLE_INT_FETCH("kern.kstack_pages", &kstack_pages); -#endif + hz = -1; TUNABLE_INT_FETCH("kern.hz", &hz); if (hz == -1) |