Hi
I am sure that crashes was caused by SMAP as I am faced with them too.
I have made following patch to fix panic (attached)
Apply it to portstree and rebuild emulators/virtualbox-ose-kmod
P.S. It is POC so no arch/SMAP autodetection
On 8/7/18 6:14 PM, AN wrote:
> Update:
>
> I found the revision:
> https://svnweb.freebsd.org/base?view=revision&revision=336876
>
> Use SMAP on amd64.
>
> Could this possibly cause VBox to crash and reboot the system? Is
> there a sysctl to disable?
>
> Thanks
>
> On Tue, Aug 7, 2018 at 10:46 AM, AN <a.n...@ieee.org> wrote:
>> I recently started having severe instability on a workstation with
>> VirtualBox. I'm not sure if it was caused by the recent large ports
>> update, or a recent commit that affected SMAP. I can't seem to find
>> that revision, would someone please post it and also the workaround to
>> disable it, I would like to try it after work and see if disabling it
>> allows VBox to work. Is anyone else seeing this effect with Vbox?
>>
>> What I'm seeing is that as soon as a VM is started it reboots the
>> host, totally reproducible every time. I tried to rebuild VBox and
>> kmod, and also some qt5 ports but still not working. Any help is
>> appreciated, thanks for reading.
>>
>> Regards
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Index: emulators/virtualbox-ose/files/patch-smap
===================================================================
--- emulators/virtualbox-ose/files/patch-smap (nonexistent)
+++ emulators/virtualbox-ose/files/patch-smap (working copy)
@@ -0,0 +1,36 @@
+--- src/VBox/HostDrivers/Support/freebsd/SUPDrv-freebsd.c.orig 2018-08-08 22:32:59.741196000 +0300
++++ src/VBox/HostDrivers/Support/freebsd/SUPDrv-freebsd.c 2018-08-08 22:52:49.842726000 +0300
+@@ -44,6 +44,7 @@
+ #include <sys/fcntl.h>
+ #include <sys/conf.h>
+ #include <sys/uio.h>
++#include <machine/cpufunc.h>
+
+ #include "../SUPDrvInternal.h"
+ #include <VBox/version.h>
+@@ -310,6 +311,9 @@ static int VBoxDrvFreeBSDIOCtl(struct cd
+ {
+ PSUPDRVSESSION pSession;
+ devfs_get_cdevpriv((void **)&pSession);
++ int rc;
++
++ stac();
+
+ /*
+ * Deal with the fast ioctl path first.
+@@ -318,9 +322,13 @@ static int VBoxDrvFreeBSDIOCtl(struct cd
+ || ulCmd == SUP_IOCTL_FAST_DO_HM_RUN
+ || ulCmd == SUP_IOCTL_FAST_DO_NOP)
+ && pSession->fUnrestricted == true)
+- return supdrvIOCtlFast(ulCmd, *(uint32_t *)pvData, &g_VBoxDrvFreeBSDDevExt, pSession);
++ rc = supdrvIOCtlFast(ulCmd, *(uint32_t *)pvData, &g_VBoxDrvFreeBSDDevExt, pSession);
++ else
++ rc = VBoxDrvFreeBSDIOCtlSlow(pSession, ulCmd, pvData, pTd);
+
+- return VBoxDrvFreeBSDIOCtlSlow(pSession, ulCmd, pvData, pTd);
++ clac();
++
++ return rc;
+ }
+
+
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