The branch main has been updated by kib:

URL: 
https://cgit.FreeBSD.org/src/commit/?id=1322760fd1274930cbb61048d9a6ba3bc1782b2a

commit 1322760fd1274930cbb61048d9a6ba3bc1782b2a
Author:     Konstantin Belousov <[email protected]>
AuthorDate: 2026-01-23 16:15:09 +0000
Commit:     Konstantin Belousov <[email protected]>
CommitDate: 2026-01-29 18:11:56 +0000

    sys: enable both SCHED_ULE and SCHED_4BSD for some configs
    
    Globally enable both schedulers for LINT.
    Enable both schedulers for GENERIC on amd64.
    
    Reviewed by:    olce
    Tested by:      pho
    Sponsored by:   The FreeBSD Foundation
    MFC after:      1 week
    Differential revision:  https://reviews.freebsd.org/D54831
---
 sys/amd64/conf/GENERIC | 1 +
 sys/conf/NOTES         | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/sys/amd64/conf/GENERIC b/sys/amd64/conf/GENERIC
index 1003572805fb..c390ff7596b6 100644
--- a/sys/amd64/conf/GENERIC
+++ b/sys/amd64/conf/GENERIC
@@ -24,6 +24,7 @@ makeoptions   DEBUG=-g                # Build kernel with 
gdb(1) debug symbols
 makeoptions    WITH_CTF=1              # Run ctfconvert(1) for DTrace support
 
 options        SCHED_ULE               # ULE scheduler
+options        SCHED_4BSD              # Original 4.xBSD scheduler
 options        NUMA                    # Non-Uniform Memory Architecture 
support
 options        PREEMPTION              # Enable kernel thread preemption
 options        EXTERR_STRINGS
diff --git a/sys/conf/NOTES b/sys/conf/NOTES
index 6d3ea088b819..1f734a700cd1 100644
--- a/sys/conf/NOTES
+++ b/sys/conf/NOTES
@@ -210,7 +210,7 @@ options     ROOTDEVNAME=\"ufs:da0s2e\"
 #
 options        SCHED_4BSD
 options        SCHED_STATS
-#options       SCHED_ULE
+options        SCHED_ULE
 
 #####################################################################
 # SMP OPTIONS:

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