[Bug 217708] panic: pfs_add_node() homonymous siblings in sys/fs/pseudofs/pseudofs.c

[bugzilla-noreply at freebsd.org]

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=217708

            Bug ID: 217708
           Summary: panic: pfs_add_node() homonymous siblings in
                    sys/fs/pseudofs/pseudofs.c
           Product: Base System
           Version: CURRENT
          Hardware: Any
                OS: Any
            Status: New
          Severity: Affects Only Me
          Priority: ---
         Component: kern
          Assignee: freebsd-bugs at FreeBSD.org
          Reporter: dch at skunkwerks.at

Dump header from device: /dev/gpt/swap
  Architecture: amd64
  Architecture Version: 2
  Dump Length: 1084706816
  Blocksize: 512
  Dumptime: Sat Mar 11 17:47:10 2017
  Hostname: akai.skunkwerks.at
  Magic: FreeBSD Kernel Dump
  Version String: FreeBSD 12.0-CURRENT #4 r314337+3d00b61e5dbd(drm-next): Sat
Mar  4 19:50:38 UTC 2017
    root at akai:/usr/obj/usr/src/sys/GENERIC
  Panic String: pfs_add_node(): homonymous siblings
  Dump Parity: 1512531746
  Bounds: 3
  Dump Status: good

This occurs repeatedly:

- under X11 session using i3 window manager
- starting a linux binary successfully
- getting i3 to transfer it to a window that is not active
- system is 12-CURRENT 3d00b61e5dbd from drm-next branch 

Coredump available on request, I can surely do more debugging when given some
directions.

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