Author: kib
Date: Fri May 17 17:11:01 2019
New Revision: 347931
URL: https://svnweb.freebsd.org/changeset/base/347931
Log:
Free microcode memory later.
With lockless DI, pmap_remove() requires operational thread lock,
which is initialized at SI_SUB_RUN_QUEUE for thread0. Move it even
later where APs are started, the moment after which other boot memory
like trampoline stacks is already being freed.
Reported by: gtetlow
Sponsored by: The FreeBSD Foundation
MFC after: 30 days
Modified:
head/sys/x86/x86/ucode.c
Modified: head/sys/x86/x86/ucode.c
==============================================================================
--- head/sys/x86/x86/ucode.c Fri May 17 17:05:16 2019 (r347930)
+++ head/sys/x86/x86/ucode.c Fri May 17 17:11:01 2019 (r347931)
@@ -260,7 +260,7 @@ restart:
goto restart;
}
}
-SYSINIT(ucode_release, SI_SUB_KMEM + 1, SI_ORDER_ANY, ucode_release, NULL);
+SYSINIT(ucode_release, SI_SUB_SMP + 1, SI_ORDER_ANY, ucode_release, NULL);
void
ucode_load_ap(int cpu)
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