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Date:      Thu, 15 Oct 2015 15:23:07 +0200
From:      "Ranjan1018 ." <214748mv@gmail.com>
To:        FreeBSD CURRENT <freebsd-current@freebsd.org>
Subject:   Panic running "/etc/rc.d/netif restart" with LAGG(4) on 11.0-CURRENT
Message-ID:  <CACyC=qa_f7br8W6bMtENWVStdMdx9eYRdzRkJ2QyEYfk0j3ktA@mail.gmail.com>

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My laptop is running:
# uname -a
FreeBSD ativ 11.0-CURRENT FreeBSD 11.0-CURRENT #8 r289136M: Sun Oct 11
14:08:51 CEST 2015     root@ativ:/usr/obj/usr/src/sys/GENERIC  amd64

In /etc/rc.conf I have:
# LAGG
ifconfig_re0="ether 18:67:b0:7d:c1:3b up"
wlans_ath0="wlan0"
ifconfig_wlan0="WPA"
cloned_interfaces="lagg0"
ifconfig_lagg0="laggproto failover laggport re0 laggport wlan0 DHCP"

Running the command:
# /etc/rc.d/netif restart
a kernel panic will happen.

# cat /var/run/panicmail.0
Dump header from device: /dev/gpt/swap
  Architecture: amd64
  Architecture Version: 2
  Dump Length: 402313216
  Blocksize: 512
  Dumptime: Wed Oct 14 23:39:24 2015
  Hostname: ativ
  Magic: FreeBSD Kernel Dump
  Version String: FreeBSD 11.0-CURRENT #8 r289136M: Sun Oct 11 14:08:51
CEST 2015
    root@ativ:/usr/obj/usr/src/sys/GENERIC
  Panic String: page fault
  Dump Parity: 2234708060
  Bounds: 0
  Dump Status: good

Backtrace:
Reading symbols from /boot/kernel/zfs.ko...Reading symbols from
/usr/lib/debug//boot/kernel/zfs.ko.debug...done.
done.
Loaded symbols for /boot/kernel/zfs.ko
Reading symbols from /boot/kernel/opensolaris.ko...Reading symbols from
/usr/lib/debug//boot/kernel/opensolaris.ko.debug...done.
done.
Loaded symbols for /boot/kernel/opensolaris.ko
Reading symbols from /boot/kernel/fdescfs.ko...Reading symbols from
/usr/lib/debug//boot/kernel/fdescfs.ko.debug...done.
done.
Loaded symbols for /boot/kernel/fdescfs.ko
Reading symbols from /boot/kernel/tmpfs.ko...Reading symbols from
/usr/lib/debug//boot/kernel/tmpfs.ko.debug...done.
done.
Loaded symbols for /boot/kernel/tmpfs.ko
Reading symbols from /boot/kernel/i915kms.ko...Reading symbols from
/usr/lib/debug//boot/kernel/i915kms.ko.debug...done.
done.
Loaded symbols for /boot/kernel/i915kms.ko
Reading symbols from /boot/kernel/drm2.ko...Reading symbols from
/usr/lib/debug//boot/kernel/drm2.ko.debug...done.
done.
Loaded symbols for /boot/kernel/drm2.ko
Reading symbols from /boot/kernel/iicbus.ko...Reading symbols from
/usr/lib/debug//boot/kernel/iicbus.ko.debug...done.
done.
Loaded symbols for /boot/kernel/iicbus.ko
Reading symbols from /boot/kernel/iic.ko...Reading symbols from
/usr/lib/debug//boot/kernel/iic.ko.debug...done.
done.
Loaded symbols for /boot/kernel/iic.ko
Reading symbols from /boot/kernel/iicbb.ko...Reading symbols from
/usr/lib/debug//boot/kernel/iicbb.ko.debug...done.
done.
Loaded symbols for /boot/kernel/iicbb.ko
Reading symbols from /boot/kernel/coretemp.ko...Reading symbols from
/usr/lib/debug//boot/kernel/coretemp.ko.debug...done.
done.
Loaded symbols for /boot/kernel/coretemp.ko
Reading symbols from /boot/modules/acpi_call.ko...done.
Loaded symbols for /boot/modules/acpi_call.ko
Reading symbols from /boot/kernel/if_lagg.ko...Reading symbols from
/usr/lib/debug//boot/kernel/if_lagg.ko.debug...done.
done.
Loaded symbols for /boot/kernel/if_lagg.ko
Reading symbols from /boot/modules/cuse4bsd.ko...done.
Loaded symbols for /boot/modules/cuse4bsd.ko
Reading symbols from /boot/kernel/ng_ubt.ko...Reading symbols from
/usr/lib/debug//boot/kernel/ng_ubt.ko.debug...done.
done.
Loaded symbols for /boot/kernel/ng_ubt.ko
Reading symbols from /boot/kernel/netgraph.ko...Reading symbols from
/usr/lib/debug//boot/kernel/netgraph.ko.debug...done.
done.
Loaded symbols for /boot/kernel/netgraph.ko
Reading symbols from /boot/kernel/ng_hci.ko...Reading symbols from
/usr/lib/debug//boot/kernel/ng_hci.ko.debug...done.
done.
Loaded symbols for /boot/kernel/ng_hci.ko
Reading symbols from /boot/kernel/ng_bluetooth.ko...Reading symbols from
/usr/lib/debug//boot/kernel/ng_bluetooth.ko.debug...done.
done.
Loaded symbols for /boot/kernel/ng_bluetooth.ko
Reading symbols from /boot/modules/vboxnetflt.ko...done.
Loaded symbols for /boot/modules/vboxnetflt.ko
Reading symbols from /boot/modules/vboxdrv.ko...done.
Loaded symbols for /boot/modules/vboxdrv.ko
Reading symbols from /boot/kernel/ng_ether.ko...Reading symbols from
/usr/lib/debug//boot/kernel/ng_ether.ko.debug...done.
done.
Loaded symbols for /boot/kernel/ng_ether.ko
Reading symbols from /boot/modules/vboxnetadp.ko...done.
Loaded symbols for /boot/modules/vboxnetadp.ko
Reading symbols from /boot/kernel/linux.ko...Reading symbols from
/usr/lib/debug//boot/kernel/linux.ko.debug...done.
done.
Loaded symbols for /boot/kernel/linux.ko
Reading symbols from /boot/kernel/linux_common.ko...Reading symbols from
/usr/lib/debug//boot/kernel/linux_common.ko.debug...done.
done.
Loaded symbols for /boot/kernel/linux_common.ko
Reading symbols from /boot/kernel/fuse.ko...Reading symbols from
/usr/lib/debug//boot/kernel/fuse.ko.debug...done.
done.
Loaded symbols for /boot/kernel/fuse.ko
Reading symbols from /boot/kernel/linprocfs.ko...Reading symbols from
/usr/lib/debug//boot/kernel/linprocfs.ko.debug...done.
done.
Loaded symbols for /boot/kernel/linprocfs.ko
Reading symbols from /boot/kernel/if_tap.ko...Reading symbols from
/usr/lib/debug//boot/kernel/if_tap.ko.debug...done.
done.
Loaded symbols for /boot/kernel/if_tap.ko
Reading symbols from /boot/kernel/autofs.ko...Reading symbols from
/usr/lib/debug//boot/kernel/autofs.ko.debug...done.
done.
Loaded symbols for /boot/kernel/autofs.ko
Reading symbols from /boot/kernel/smbfs.ko...Reading symbols from
/usr/lib/debug//boot/kernel/smbfs.ko.debug...done.
done.
Loaded symbols for /boot/kernel/smbfs.ko
Reading symbols from /boot/kernel/libiconv.ko...Reading symbols from
/usr/lib/debug//boot/kernel/libiconv.ko.debug...done.
done.
Loaded symbols for /boot/kernel/libiconv.ko
Reading symbols from /boot/kernel/libmchain.ko...Reading symbols from
/usr/lib/debug//boot/kernel/libmchain.ko.debug...done.
done.
Loaded symbols for /boot/kernel/libmchain.ko
#0  doadump (textdump=1) at pcpu.h:221
    in pcpu.h
(kgdb) #0  doadump (textdump=1) at pcpu.h:221
#1  0xffffffff80a21ed5 in kern_reboot (howto=260)
    at /usr/src/sys/kern/kern_shutdown.c:364
#2  0xffffffff80a224ab in vpanic (fmt=<value optimized out>,
    ap=<value optimized out>) at /usr/src/sys/kern/kern_shutdown.c:757
#3  0xffffffff80a224f3 in panic (fmt=0x0)
    at /usr/src/sys/kern/kern_shutdown.c:688
#4  0xffffffff80e68c11 in trap_fatal (frame=<value optimized out>,
    eva=<value optimized out>) at /usr/src/sys/amd64/amd64/trap.c:834
#5  0xffffffff80e68e1d in trap_pfault (frame=0xfffffe011a031680,
    usermode=<value optimized out>) at /usr/src/sys/amd64/amd64/trap.c:684
#6  0xffffffff80e6854f in trap (frame=0xfffffe011a031680)
    at /usr/src/sys/amd64/amd64/trap.c:435
#7  0xffffffff80e48907 in calltrap ()
    at /usr/src/sys/amd64/amd64/exception.S:234
#8  0xffffffff82711985 in lagg_port_lladdr (lp=0x0,
    lladdr=0xfffffe011a031792 "")
    at /usr/src/sys/modules/if_lagg/../../net/if_lagg.c:627
#9  0xffffffff82711f58 in lagg_port_destroy ()
    at /usr/src/sys/modules/if_lagg/../../net/if_lagg.c:919
#10 0xffffffff8270f38a in lagg_clone_destroy (ifp=<value optimized out>)
    at /usr/src/sys/modules/if_lagg/../../net/if_lagg.c:543
#11 0xffffffff80b00dbc in if_clone_destroyif (ifc=0xfffff80003f1b780,
    ifp=<value optimized out>) at /usr/src/sys/net/if_clone.c:719
#12 0xffffffff80b00bce in if_clone_destroy (name=<value optimized out>)
    at /usr/src/sys/net/if_clone.c:284
#13 0xffffffff80a813d0 in kern_ioctl (td=0xfffff800635f7000,
    fd=<value optimized out>, com=18446741879417673618,
    data=0xfffffe011a0318f0 "lagg0") at file.h:324
#14 0xffffffff80a8112e in sys_ioctl (td=0xfffff800635f7000,
    uap=0xfffffe011a031a40) at /usr/src/sys/kern/sys_generic.c:723
#15 0xffffffff80e693ce in amd64_syscall (td=0xfffff800635f7000, traced=0)
    at subr_syscall.c:140
#16 0xffffffff80e48beb in Xfast_syscall ()
    at /usr/src/sys/amd64/amd64/exception.S:394
#17 0x00000008011ebdfa in ?? ()
Current language:  auto; currently minimal
(kgdb)


Regards,
Maurizio



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