On Fri, Feb 05, 2021 at 12:58:34AM +0200, Konstantin Belousov wrote: > On Thu, Feb 04, 2021 at 01:34:13PM -0800, Matthew Macy wrote: > > On Thu, Feb 4, 2021 at 1:31 PM Alan Somers <asom...@freebsd.org> wrote: > > > > > > After upgrading a machine to FreeBSD, 12.2, it hit the following panic on > > > its first reboot. I suspect that a few other servers have hit this too, > > > but since it happens before swap is mounted there are no core dumps, and > > > they usually reboot immediately. The code in question hasn't changed > > > since > > > 2018. The panic happened in cmci_monitor at line 930. Does anybody have > > > any suggestions for how I could debug further? I can't readily reproduce > > > it, and I can't dump core, but I'd like to investigate it any way I can. > > > The server in question has dual Xeon Gold 6142 CPUs. > > > > Try this. > > I think that there is no other dependencies in the startup order, but > cannot know it for sure. > > commit 19584e3d3e9606d591fa30999b370ed758960e8c > Author: Konstantin Belousov <k...@freebsd.org> > Date: Fri Feb 5 00:56:09 2021 +0200 > > x86: init mca before APs are started
APs only call mca_init() after they have been released by the BSP though, and that happens later in SI_SUB_SMP. > diff --git a/sys/x86/x86/mca.c b/sys/x86/x86/mca.c > index 03100e77d455..e2bf2673cf69 100644 > --- a/sys/x86/x86/mca.c > +++ b/sys/x86/x86/mca.c > @@ -1371,7 +1371,7 @@ mca_init_bsp(void *arg __unused) > > mca_init(); > } > -SYSINIT(mca_init_bsp, SI_SUB_CPU, SI_ORDER_ANY, mca_init_bsp, NULL); > +SYSINIT(mca_init_bsp, SI_SUB_CPU, SI_ORDER_SECOND, mca_init_bsp, NULL); > > /* Called when a machine check exception fires. */ > void > _______________________________________________ > freebsd-stable@freebsd.org mailing list > https://lists.freebsd.org/mailman/listinfo/freebsd-stable > To unsubscribe, send any mail to "freebsd-stable-unsubscr...@freebsd.org" _______________________________________________ freebsd-stable@freebsd.org mailing list https://lists.freebsd.org/mailman/listinfo/freebsd-stable To unsubscribe, send any mail to "freebsd-stable-unsubscr...@freebsd.org"
