[Bug 272828] Intel XL710 : kernel panic with SRVIO - intel-ixl-kmod-1.12.40

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=272828

--- Comment #4 from Santiago Martinez <sm@codenetworks.net> ---
BT output:

0  __curthread () at /usr/src/sys/amd64/include/pcpu_aux.h:55
#1  doadump (textdump=<optimized out>) at /usr/src/sys/kern/kern_shutdown.c:396
#2  0xffffffff807b871a in kern_reboot (howto=260) at
/usr/src/sys/kern/kern_shutdown.c:484
#3  0xffffffff807b8bbe in vpanic (fmt=<optimized out>,
ap=ap@entry=0xfffffe05db485730) at /usr/src/sys/kern/kern_shutdown.c:923
#4  0xffffffff807b89f3 in panic (fmt=<unavailable>) at
/usr/src/sys/kern/kern_shutdown.c:847
#5  0xffffffff80ba3127 in trap_fatal (frame=0xfffffe05db485820, eva=124) at
/usr/src/sys/amd64/amd64/trap.c:942
#6  0xffffffff80ba317f in trap_pfault (frame=0xfffffe05db485820,
usermode=false, signo=<optimized out>, ucode=<optimized out>) at
/usr/src/sys/amd64/amd64/trap.c:761
#7  <signal handler called>
#8  if_getcapenable (ifp=0x0) at /usr/src/sys/net/if.c:4171
#9  0xffffffff822406d4 in ixl_reconfigure_filters () from
/home/smartinez/ixl-1.12.40/src/if_ixl.ko
#10 0xffffffff82266c0c in ixl_vf_setup_vsi () from
/home/smartinez/ixl-1.12.40/src/if_ixl.ko
#11 0xffffffff8226671e in ixl_add_vf () from
/home/smartinez/ixl-1.12.40/src/if_ixl.ko
#12 0xffffffff8059fb22 in PCI_IOV_ADD_VF (dev=0xfffffe05d068c000, vfnum=0,
config=0xf8) at ./pci_iov_if.h:60
#13 pci_iov_enumerate_vfs (dinfo=<optimized out>, config=0xfffff8010b253740,
first_rid=<optimized out>, rid_stride=1) at /usr/src/sys/dev/pci/pci_iov.c:665
#14 pci_iov_config (cdev=<optimized out>, arg=<optimized out>) at
/usr/src/sys/dev/pci/pci_iov.c:761
#15 pci_iov_ioctl (dev=<optimized out>, cmd=<optimized out>, data=<optimized
out>, fflag=<optimized out>, td=<optimized out>) at
/usr/src/sys/dev/pci/pci_iov.c:986
#16 0xffffffff8064c7c6 in devfs_ioctl (ap=0xfffffe05db485ba8) at
/usr/src/sys/fs/devfs/devfs_vnops.c:944
#17 0xffffffff808ac104 in vn_ioctl (fp=0xfffff801629fa1e0,
com=18446735282067515392, data=0xfffffe05db485d50,
active_cred=0xfffff801de9ea700, td=0x10) at /usr/src/sys/kern/vfs_vnops.c:1697
#18 0xffffffff8064ce7e in devfs_ioctl_f (fp=0x0, com=18446735282067515392,
data=0xf8, cred=0xfffffe0670b10cc0, td=0x10) at
/usr/src/sys/fs/devfs/devfs_vnops.c:875
#19 0xffffffff8082719d in fo_ioctl (fp=0xfffff801629fa1e0,
com=18446735282067515392, data=0xf8, active_cred=0xfffffe0670b10cc0,
td=0xfffffe05d839e900) at /usr/src/sys/sys/file.h:361
#20 kern_ioctl (td=0x10, td@entry=0xfffffe05d839e900, fd=<optimized out>,
com=18446735282067515392, com@entry=2148560906, data=0xf8 <error: Cannot access
memory at address 0xf8>, 
    data@entry=0xfffffe05db485d50 "") at /usr/src/sys/kern/sys_generic.c:803
#21 0xffffffff80826e80 in sys_ioctl (td=0xfffffe05d839e900,
uap=0xfffffe05d839ece8) at /usr/src/sys/kern/sys_generic.c:711
#22 0xffffffff80ba3a1c in syscallenter (td=0xfffffe05d839e900) at
/usr/src/sys/amd64/amd64/../../kern/subr_syscall.c:190
#23 amd64_syscall (td=0xfffffe05d839e900, traced=0) at
/usr/src/sys/amd64/amd64/trap.c:1183
#24 <signal handler called>
#25 0x00000e55d9e4bb8a in ?? ()
Backtrace stopped: Cannot access memory at address 0xe55d67c9fe8

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