[Bug 256916] panic: recent 14-current sometimes panics.

From: <bugzilla-noreply_at_freebsd.org>
Date: Sat, 17 Jul 2021 06:35:09 +0000
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=256916

--- Comment #8 from Masachika ISHIZUKA <ish_at_amail.plala.or.jp> ---
Created attachment 226501
  --> https://bugs.freebsd.org/bugzilla/attachment.cgi?id=226501&action=edit
core.txt.9

Today, it panicked again on 14-current n247746-16789751091.
It seems that filename completion of tcsh over nfs access sometimes trigger to
panic.

# cat info.last 
Dump header from device: /dev/gpt/fbswap
  Architecture: amd64
  Architecture Version: 2
  Dump Length: 889782272
  Blocksize: 512
  Compression: none
  Dumptime: 2021-07-17 14:53:00 +0900
  Hostname: carrot.ish.org
  Magic: FreeBSD Kernel Dump
  Version String: FreeBSD 14.0-CURRENT #2 master-n247746-16789751091-dirty: Mon
Jul  5 16:39:40 JST 2021
    ishizuka_at_okra.ish.org:/usr/obj/usr/src/amd64.amd64/sys/SG_UDF2
  Panic String: lookup: encountered unexpected nul; string [tmp]

  Dump Parity: 1107811191
  Bounds: 9
  Dump Status: good

The above panic strings string [foo] is sub directory name of nfs access.
ex. tmp: /media/tmp
    video: /media/video
    mail: /var/hoge/mail
    sys: /usr/src/sys

vmcore was stored in https://www.ish.org/files/vmcore-n247746.9.xz .

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Received on Sat Jul 17 2021 - 06:35:09 UTC

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