Bug 238883
| Summary: | Fatal double fault using unionfs to build www/node port (repeatable) | ||||||||
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| Product: | Base System | Reporter: | chadf | ||||||
| Component: | kern | Assignee: | freebsd-bugs (Nobody) <bugs> | ||||||
| Status: | New --- | ||||||||
| Severity: | Affects Only Me | CC: | hamiltcl | ||||||
| Priority: | --- | Keywords: | panic | ||||||
| Version: | 12.0-RELEASE | ||||||||
| Hardware: | amd64 | ||||||||
| OS: | Any | ||||||||
| Attachments: |
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Replaced nullfs with symlink and still panics. Removing nullfs Replaced nullfs with symlink and still panics. Removed nullfs reference from summary line and adding core.txt.5 attachment. Created attachment 205426 [details]
/var/crash/core.txt.5 file
The panic and any associated backtrace will be of more use than the core file. |
Created attachment 205420 [details] /var/crash/core.txt.4 file Repeatably able to panic kernel while building www/node ports while using nullfs and unionfs layered mounts for /usr/ports directory. To trigger, setup mounts as: /export/ports on /usr/ports (nullfs, local, read-only) <above>:/usr/src/local.ports on /usr/ports (unionfs, local) The /export/ports directory contains a master copy of the ports tree (ufs or zfs doesn't matter - haven't tried nfs). Then build www/node port: root@krash:~ # cd /usr/ports/www/node root@krash:/usr/ports/www/node # make ===> Building for node-12.4.0 . . . Wait for panic (may take awhile into build). After panic/reboot, restarting build panics again, almost immediately. I was able to recreate crash in a fresh virtualbox install. The .vdi file for that VM (in a quick to re-panic state) is available upon request (7.3GB uncompressed). /var/crash/core.txt file attached. vmcore file available (12MB compressed, unattached due to size).