Bug 221221 - netboot: shutting down netbooted machine hangs at "syncing disks... 1 1 1 1 1"
Summary: netboot: shutting down netbooted machine hangs at "syncing disks... 1 1 1 1 1"
Status: Closed Overcome By Events
Alias: None
Product: Base System
Classification: Unclassified
Component: kern (show other bugs)
Version: 11.1-STABLE
Hardware: Any Any
: --- Affects Only Me
Assignee: freebsd-bugs (Nobody)
URL:
Keywords:
Depends on:
Blocks:
 
Reported: 2017-08-04 15:18 UTC by Martin Birgmeier
Modified: 2020-05-31 11:10 UTC (History)
0 users

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Description Martin Birgmeier 2017-08-04 15:18:39 UTC 
Scenario:
- netboot installation upgraded from releng/11.0 to releng/11.1
- booted in latest VirtualBox
- shutdown -p now

Result:
- the shutdown hangs at "syncing disks... 1 1 1 1"
- the value 0 is never reached
- the process eventually times out

Expected result:
- Syncing disks should reach 0 remaining dirty blocks
Comment 1 Andriy Gapon freebsd_committer freebsd_triage 2020-05-31 11:06:29 UTC 
FWIW, I saw this problem multiple times.
I think that it happened when I mounted some local filesystem while having root on NFS.
Never got around to debugging it, though.
Comment 2 Martin Birgmeier 2020-05-31 11:10:27 UTC 
Thank you, this is an interesting pointer... will check it next time around.

-- Martin