[Bug 256278] [panic] main-n247019-aa462cab60c page fault while in kernel mode

From: <bugzilla-noreply_at_freebsd.org>
Date: Mon, 31 May 2021 02:43:36 UTC 
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=256278

            Bug ID: 256278
           Summary: [panic] main-n247019-aa462cab60c page fault while in
                    kernel mode
           Product: Base System
           Version: CURRENT
          Hardware: Any
                OS: Any
            Status: New
          Severity: Affects Only Me
          Priority: ---
         Component: kern
          Assignee: bugs@FreeBSD.org
          Reporter: ish@amail.plala.or.jp

Created attachment 225392
  --> https://bugs.freebsd.org/bugzilla/attachment.cgi?id=225392&action=edit
core.txt.0

It occured when I wanted to play an mp4 file with mpv.
I can play most files with mpv, but some files make core dump.
I can play all files with mpv on 14.0-CURRENT main-n246500-d1cb8d11b0c.

% cat /var/crash/info.last 
Dump header from device: /dev/gpt/fbswap
  Architecture: amd64
  Architecture Version: 2
  Dump Length: 504762368
  Blocksize: 512
  Compression: none
  Dumptime: 2021-05-31 01:28:29 +0900
  Hostname: carrot.ish.org
  Magic: FreeBSD Kernel Dump
  Version String: FreeBSD 14.0-CURRENT #38 main-n247019-aa462cab60c-dirty: Sat
May 29 18:26:04 JST 2021
    ishizuka@okra.ish.org:/usr/obj/usr/src/amd64.amd64/sys/GENERIC
  Panic String: page fault
  Dump Parity: 781310293
  Bounds: 0
  Dump Status: good

vmcore was stored to https://www.ish.org/files/vmcore.0-d1cb8d11b0c.xz

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