On Fri, 23 Dec 2016 10:17:34 -0800 Adrian Chadd <adrian.ch...@gmail.com> wrote:
>
> On 20 December 2016 at 08:18, J.R. Oldroyd <f...@opal.com> wrote:
> > On Thu, 8 Dec 2016 17:19:26 -0500 "J.R. Oldroyd" <f...@opal.com> wrote:  
> >>
> >> On Thu, 08 Dec 2016 21:29:32 +0200 "Andriy Voskoboinyk" 
> >> <s3er...@gmail.com> wrote:  
> >> >
> >> > Thu, 08 Dec 2016 16:57:19 +0200 було написано J.R. Oldroyd 
> >> > <f...@opal.com>:
> >> >
> >> > Is there any additional output with
> >> > wlandebug_wlan0="scan+state+auth+assoc"
> >> > in /etc/rc.conf ?
> >> >  
> >>
> >> I have put that in and rebooted several times, all times OK.
> >> I will report back again in due course when it next hangs.
> >>
> >>       -jr
> >>  
> >
> > The boot hang occurred again today.  I noted the point of the hang and
> > rebooted; the log from the good boot with annotation of the previous hang
> > point is here [1].
> >
> >         -jr
> >
> > [1] http://opal.com/jr/freebsd/20161220-fbsd11.3-boot_hang_wlan_debug.txt
> > _______________________________________________
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> > https://lists.freebsd.org/mailman/listinfo/freebsd-wireless
> > To unsubscribe, send any mail to "freebsd-wireless-unsubscr...@freebsd.org" 
> >  
> 
> 
> can you compile with witness and invariants? I'd like to see if its
> locking related.
> 
> thanks
> 
> 
> -adrian
> 
> 

Hmm, maybe:

Dec 23 14:30:34 shibato kernel: wlan0: ieee80211_swscan_add_scan: chan  11g min 
dwell met (2146895553 > 2146895553)
Dec 23 14:30:34 shibato kernel: wlan0: scan_mindwell: called
Dec 23 14:30:34 shibato kernel: wlan0: scan_curchan_task: loop start; scandone=0
Dec 23 14:30:34 shibato kernel: wlan0: scan_curchan_task: chan  11g ->   7g 
[active, dwell min 20ms max 200ms]
Dec 23 14:30:34 shibato kernel: wlan0: scan_curchan: calling; maxdwell=200
Dec 23 14:30:34 shibato kernel: wlan0: scan_curchan_task: waiting
Dec 23 14:30:34 shibato kernel: re0: link state changed to UP
Dec 23 14:30:34 shibato kernel: lagg0: link state changed to UP
Dec 23 14:30:34 shibato kernel: lock order reversal:
Dec 23 14:30:34 shibato kernel: 1st 0xfffff800095d2208 if_lagg rmlock (if_lagg 
rmlock) @ /usr/src/sys/modules/if_lagg/../../net/if_lagg.c:1530
Dec 23 14:30:34 shibato kernel: 2nd 0xfffffe0000e10218 re0 (network driver) @ 
dev/re/if_re.c:3433
Dec 23 14:30:34 shibato kernel: stack backtrace:
Dec 23 14:30:34 shibato kernel: #0 0xffffffff80a98b60 at witness_debugger+0x70
Dec 23 14:30:34 shibato kernel: #1 0xffffffff80a98a54 at 
witness_checkorder+0xe54
Dec 23 14:30:34 shibato kernel: #2 0xffffffff80a1c794 at __mtx_lock_flags+0xa4
Dec 23 14:30:34 shibato kernel: #3 0xffffffff8078c279 at re_ioctl+0x3a9
Dec 23 14:30:34 shibato kernel: #4 0xffffffff8222428e at lagg_port_ioctl+0xde
Dec 23 14:30:34 shibato kernel: #5 0xffffffff80b20bbf at if_addmulti+0x39f
Dec 23 14:30:34 shibato kernel: #6 0xffffffff82224708 at 
lagg_ether_cmdmulti+0x158
Dec 23 14:30:34 shibato kernel: #7 0xffffffff822219dd at lagg_ioctl+0xdd
Dec 23 14:30:34 shibato kernel: #8 0xffffffff80b20bbf at if_addmulti+0x39f
Dec 23 14:30:34 shibato kernel: #9 0xffffffff80c35a97 at 
in6_mc_join_locked+0x1d7
Dec 23 14:30:34 shibato kernel: #10 0xffffffff80c35715 at in6_joingroup+0x75
Dec 23 14:30:34 shibato kernel: #11 0xffffffff80c2f9e9 at in6_update_ifa+0x1339
Dec 23 14:30:34 shibato kernel: #12 0xffffffff80c33eb3 at in6_ifattach+0x413
Dec 23 14:30:34 shibato kernel: #13 0xffffffff80b1fd84 at ifioctl+0xfe4
Dec 23 14:30:34 shibato kernel: #14 0xffffffff80a9d946 at kern_ioctl+0x246
Dec 23 14:30:34 shibato kernel: #15 0xffffffff80a9d691 at sys_ioctl+0x171
Dec 23 14:30:34 shibato kernel: #16 0xffffffff80e9d40b at amd64_syscall+0x2db
Dec 23 14:30:34 shibato kernel: #17 0xffffffff80e7d8ab at Xfast_syscall+0xfb
Dec 23 14:30:34 shibato kernel: wlan0: scan_curchan_task: loop start; scandone=0
Dec 23 14:30:34 shibato kernel: wlan0: scan_curchan_task: chan   7g ->  36a 
[active, dwell min 20ms max 200ms]
Dec 23 14:30:34 shibato kernel: wlan0: scan_curchan: calling; maxdwell=200
Dec 23 14:30:34 shibato kernel: wlan0: scan_curchan_task: waiting

This boot then continued normally, no hang.

        -jr

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