Summary: | panic: dead bo 0xfffff8000a838b48 | ||
---|---|---|---|
Product: | Base System | Reporter: | Peter Holm <pho> |
Component: | kern | Assignee: | Jason A. Harmening <jah> |
Status: | New --- | ||
Severity: | Affects Only Me | CC: | cem, jah |
Priority: | --- | Keywords: | stress2 |
Version: | CURRENT | ||
Hardware: | Any | ||
OS: | Any |
Description
Peter Holm
2019-02-05 08:12:26 UTC
A commit references this bug: Author: pho Date: Tue Feb 5 08:15:20 UTC 2019 New revision: 343768 URL: https://svnweb.freebsd.org/changeset/base/343768 Log: PR: 235513 Sponsored by: Dell EMC Isilon Changes: user/pho/stress2/misc/devfs4.sh Peter added a test-case but that doesn't fix the underlying problem. It looks like we already claim to support forcible devfs unmount, mostly for jails it seems. This particular panic is from a longstanding KASSERT, so at least the case of INVARIANTS + devfs forced unmount hasn't been well tested. I'll poke at this and see if I can tease out some useful fix. Probably not, given the foot-shooting nature of the problem, but at least I might learn something about the buffer cache. |