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Date:      Mon, 04 Dec 2017 00:49:58 +0100
From:      Dave Cottlehuber <dch@skunkwerks.at>
To:        freebsd-current@freebsd.org
Subject:   panic: Lock PFil shared rmlock not read locked @ /usr/src/sys/net/pfil.c:116 prior to r326363
Message-ID:  <1512344998.2249959.1192664520.6B278E9D@webmail.messagingengine.com>

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I'm seeing this repeatedly in the last ~ 2 weeks,  present in r326363
and typically panics 1-15m post boot since this weekend's update.  I'm
currently bisecting my way back; it looks like its not in r325755, but I
can't be sure for a few more hours.

https://s3.amazonaws.com/uploads.hipchat.com/8784/2508819/MGim1y8pQt1o1xK/IMG_2698.JPG

# uname -a
FreeBSD wintermute.skunkwerks.at 12.0-CURRENT FreeBSD 12.0-CURRENT #2
r326363+fcb3a5a8a12d(master): Wed Nov 29 11:37:17 UTC 2017    
root@wintermute:/usr/obj/usr/src/amd64.amd64/sys/GENERIC  amd64

# dmesg

https://gist.github.com/dch/68dd6f8d44dd76c558908e71dc3e1f87#file-dmesg-log
+ other logs in same gist

Suggestions how to get from X to debugger would help, as would setting
up serial console over ipmi - this is a supermicro motherboard.

A+
Dave



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