Bug 253854 - The dumpon service doesn't (start and) set up dump devices anymore
Summary: The dumpon service doesn't (start and) set up dump devices anymore
Status: Closed FIXED
Alias: None
Product: Base System
Classification: Unclassified
Component: conf (show other bugs)
Version: CURRENT
Hardware: Any Any
: --- Affects Only Me
Assignee: freebsd-bugs (Nobody)
URL:
Keywords:
Depends on:
Blocks:
 
Reported: 2021-02-25 19:27 UTC by vidwer+fbsdbugs
Modified: 2021-02-26 22:28 UTC (History)
2 users (show)

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Description vidwer+fbsdbugs 2021-02-25 19:27:01 UTC
Userland is built from git hash 8f3c71c85e.

The setting 'dumpdev="AUTO"' exists in /etc/rc.conf yet after booting 'sysctl kern.shutdown.dumpdevname' is empty.

Manually running 'service dumpon start' does populate this sysctl.

After manually starting dumpon, I can force a crash to DDB, using the documented hotkey combination.
Comment 1 vidwer+fbsdbugs 2021-02-26 13:32:58 UTC
My first thought was to revert to the commit prior to "git: 77e1ccbee3ed - main - rc: implement parallel boot": "git: f3f7b0dc065c - main - lib/msun/ctrig_test: Print the mismatched values on failure"

https://cgit.freebsd.org/src/commit/?id=77e1ccbee3ed6c837929e4e232fd07f95bfc8294
https://cgit.freebsd.org/src/commit/?id=f3f7b0dc065ce30f29b221788c58079d78931a77

That did not help. The next commit candidate to revert to would be svn commit r366856.
Comment 2 vidwer+fbsdbugs 2021-02-26 22:28:07 UTC
Updating /usr/src/ to git commit https://cgit.freebsd.org/src/commit/?id=763db58932874bb47fc6f9322ab81cc947f80991 will set 'kern.shutdown.dumpdevname' again.