Bug 242369

Summary:

tmpfs + union_fs panic: lockmgr_xlock_hard: recursing on non recursive lockmgr

Product:

Base System

Reporter:

mr.xanto

Component:

kern

Assignee:

freebsd-fs (Nobody) <fs>

Status:

New ---

Severity:

Affects Only Me

CC:

chris

Priority:

---

Keywords:

crash

Version:

12.1-RELEASE

Hardware:

Any

OS:

Any

Attachments:

Description	Flags
panic screen	none

Description mr.xanto 2019-12-02 14:00:59 UTC

Created attachment 209607 [details]
panic screen

12.1 Release panic with mounted unionfs with tmpfs.

How-to repeat:
1) Boot with FreeBSD-12.1-RELEASE-amd64-bootonly.iso in live-cd mode.
2) mount -t tmpfs -o rw,size=512M tmpfs /net
3) mount_unionfs /net/ /usr/
4) mount_unionfs /net/ /var/
5) mount_unionfs /net/ /tmp/
6) dhclient em0

There is record of the panic: https://yadi.sk/i/O7NLAgjwVN61oA