[Bug 259034] emulators/virtualbox-ose FreeBSD guest panics 14.0-CURRENT host

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=259034

            Bug ID: 259034
           Summary: emulators/virtualbox-ose FreeBSD guest panics
                    14.0-CURRENT host
           Product: Ports & Packages
           Version: Latest
          Hardware: Any
                OS: Any
            Status: New
          Severity: Affects Only Me
          Priority: ---
         Component: Individual Port(s)
          Assignee: vbox@FreeBSD.org
          Reporter: truckman@FreeBSD.org
          Assignee: vbox@FreeBSD.org
             Flags: maintainer-feedback?(vbox@FreeBSD.org)

Created attachment 228550
  --> https://bugs.freebsd.org/bugzilla/attachment.cgi?id=228550&action=edit
patch to avoid virtualbox host epoch panic

If a 14.0-CURRENT FreeBSD guest does any network I/O, it causes this
epoch-related panic on the 14.0-CURRENT FreeBSD host.

panic: Assertion in_epoch(net_epoch_preempt) failed at
/usr/src/sys/net/netisr.c:1110
cpuid = 8
time = 1628234931
KDB: stack backtrace:
db_trace_self_wrapper() at db_trace_self_wrapper+0x2b/frame 0xfffffe01a42b31c0
vpanic() at vpanic+0x187/frame 0xfffffe01a42b3220
panic() at panic+0x43/frame 0xfffffe01a42b3280
netisr_dispatch_src() at netisr_dispatch_src+0x3c2/frame 0xfffffe01a42b32e0
ether_input() at ether_input+0x9d/frame 0xfffffe01a42b3340
vboxNetFltPortOsXmit() at vboxNetFltPortOsXmit+0x241/frame 0xfffffe01a42b33e0
vboxNetFltPortXmit() at vboxNetFltPortXmit+0x145/frame 0xfffffe01a42b3420
__stop_set_sysuninit_set() at 0xffffffff832c9bbe/frame 0xfffffe01a42b3510
__stop_set_sysuninit_set() at 0xffffffff832c514a/frame 0xfffffe01a42b35b0
__stop_set_sysuninit_set() at 0xffffffff832c47d6/frame 0xfffffe01a42b3650
__stop_set_sysuninit_set() at 0xffffffff831d8bbc/frame 0xfffffe01a42b36a0
supdrvIOCtlInnerUnrestricted() at supdrvIOCtlInnerUnrestricted+0x14a1/frame
0xfffffe01a42b3710
VBoxDrvFreeBSDIOCtl() at VBoxDrvFreeBSDIOCtl+0xcc/frame 0xfffffe01a42b3780
VBoxDrvFreeBSDIOCtlSMAP() at VBoxDrvFreeBSDIOCtlSMAP+0x30/frame
0xfffffe01a42b3800
devfs_ioctl() at devfs_ioctl+0xcd/frame 0xfffffe01a42b3850
vn_ioctl() at vn_ioctl+0x131/frame 0xfffffe01a42b3960
devfs_ioctl_f() at devfs_ioctl_f+0x1e/frame 0xfffffe01a42b3980
kern_ioctl() at kern_ioctl+0x202/frame 0xfffffe01a42b39f0
sys_ioctl() at sys_ioctl+0x124/frame 0xfffffe01a42b3ac0
amd64_syscall() at amd64_syscall+0x12e/frame 0xfffffe01a42b3bf0
fast_syscall_common() at fast_syscall_common+0xf8/frame 0xfffffe01a42b3bf0
--- syscall (54, FreeBSD ELF64, sys_ioctl), rip = 0x80038856a, rsp =
0x7fffd9a9dcf8, rbp = 0x7fffd9a9dd00 ---
KDB: enter: panic

This is an old stack trace, so the addresses have likely changed.


The guest network configuration in VirtualBox:

Bridged Adapter
igb0
Paravirtualized Network (virtio-net)

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