[Bug 294184] Invoking IPv6 network device address event may sleep with 1 sleep inhibitors

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D294184

John F. Carr <[email protected]> changed:

           What    |Removed                     |Added
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                 CC|                            |[email protected]

--- Comment #2 from John F. Carr <[email protected]> ---
I saw the same error after plugging a cable into a system that was already
connected by 802.11.  Three seconds after the log messages about DHCP assig=
ning
an address on the wired interface I saw a pair of identical messages:

Invoking IPv6 network device address event may sleep with 1 sleep inhibitors
stack backtrace:
#0 0xffffffff80c9c1fc at witness_debugger+0x6c
#1 0xffffffff80c9daec at witness_warn+0x4bc
#2 0xffffffff80e777e4 at in6_update_ifa+0xc64
#3 0xffffffff80ea6b8c at in6_ifadd+0x31c
#4 0xffffffff80ea2bd3 at nd6_ra_input+0x1583
#5 0xffffffff80e71231 at icmp6_input+0x5b1
#6 0xffffffff80e8c6d1 at ip6_input+0xbc1
#7 0xffffffff80d9aecf at netisr_dispatch_src+0xbf
#8 0xffffffff80d7bb9a at ether_demux+0x17a
#9 0xffffffff80d7d188 at ether_nh_input+0x3e8
#10 0xffffffff80d9aecf at netisr_dispatch_src+0xbf
#11 0xffffffff80d7c009 at ether_input+0xe9
#12 0xffffffff80d9625f at iflib_rxeof+0x8ef
#13 0xffffffff80d905c5 at _task_fn_rx+0x85
#14 0xffffffff80c71648 at gtaskqueue_run_locked+0x1a8
#15 0xffffffff80c71363 at gtaskqueue_thread_loop+0xd3
#16 0xffffffff80bc9be2 at fork_exit+0x82
#17 0xffffffff8118578e at fork_trampoline+0xe

The rc.conf lines for the network interfaces are:

ifconfig_em0=3D"DHCP"
ifconfig_em0_ipv6=3D"inet6 accept_rtadv"
wlans_iwm0=3D"wlan0"
ifconfig_wlan0=3D"WPA DHCP"

My kernel is based on 954001a9dd363da9184706657eb34f9622bb220f.

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