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Date:      Thu, 7 Nov 2024 15:03:43 -0500
From:      Mark Johnston <markj@freebsd.org>
To:        Oleksandr Kryvulia <shuriku@shurik.kiev.ua>
Cc:        FreeBSD Current <freebsd-current@freebsd.org>
Subject:   Re: panic after a97f683fe3c425
Message-ID:  <Zy0dH7SbNC4JOywC@nuc>
In-Reply-To: <95a67972-ea73-4821-bbec-3c8857b1f2f4@shurik.kiev.ua>
References:  <95a67972-ea73-4821-bbec-3c8857b1f2f4@shurik.kiev.ua>

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On Thu, Nov 07, 2024 at 09:43:50PM +0200, Oleksandr Kryvulia wrote:
> Hi, @current
> 
> My laptop now panics while boot with [1].
> git bisect shows a97f683fe3c425b425cf8cc466319f54ea957c20 as offending
> commit.
> 
> [1] https://imgur.com/a/Pb6eakW

I believe the patch below will fix the problem.

diff --git a/sys/amd64/vmm/vmm.c b/sys/amd64/vmm/vmm.c
index 77e0adda86f5..9569f8ace909 100644
--- a/sys/amd64/vmm/vmm.c
+++ b/sys/amd64/vmm/vmm.c
@@ -513,8 +513,9 @@ static moduledata_t vmm_kmod = {
  *
  * - VT-x initialization requires smp_rendezvous() and therefore must happen
  *   after SMP is fully functional (after SI_SUB_SMP).
+ * - vmm device initialization requires an initialized devfs.
  */
-DECLARE_MODULE(vmm, vmm_kmod, SI_SUB_SMP + 1, SI_ORDER_ANY);
+DECLARE_MODULE(vmm, vmm_kmod, MAX(SI_SUB_SMP, SI_SUB_DEVFS) + 1, SI_ORDER_ANY);
 MODULE_VERSION(vmm, 1);
 
 static void



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