Bug 177658 - [ufs] FreeBSD panics after get full filesystem with ufs snapshot
Summary: [ufs] FreeBSD panics after get full filesystem with ufs snapshot
Status: Open
Alias: None
Product: Base System
Classification: Unclassified
Component: kern (show other bugs)
Version: Unspecified
Hardware: Any Any
: Normal Affects Only Me
Assignee: freebsd-bugs (Nobody)
URL:
Keywords:
Depends on:
Blocks:
 
Reported: 2013-04-05 18:10 UTC by Jose G. Juanino
Modified: 2017-12-31 22:27 UTC (History)
0 users

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Description Jose G. Juanino 2013-04-05 18:10:00 UTC 
Reproducible panic: FreeBSD panics after get full filesystem with a ufs
snapshot.

kernel and userland is standard, with no tweaks, only in /boot/loader.conf:

geom_concat_load="YES"

(the affected filesystem is gconcated of several partitions).

In sysctl.conf, I have:

kern.ipc.somaxconn=256
kern.maxfiles=25000

How-To-Repeat: In a ufs filesystem with soft updates and some snapshot taken previously,
do some heavy write activity.  The snapshot will grow a lot; if that
snapshot fill up the filesystem you will get a panic.  Full backtrace in
http://pastebin.com/MZP2Femp .

This PR is pretty similar to kern/162362.
Comment 1 Jose G. Juanino 2013-04-05 22:22:20 UTC 
There is a typo  in the link: it should be
http://pastebin.com/MZP2Femp<http://pastebin.com/MZP2Femp.>
Comment 2 Jose G. Juanino 2013-04-05 22:35:31 UTC 
Sorry, I am not very smart today: take out the final point in the link:

http://pastebin.com/MZP2Femp
Comment 3 Mark Linimon freebsd_committer freebsd_triage 2013-04-07 00:05:32 UTC 
Responsible Changed
From-To: freebsd-bugs->freebsd-fs

Over to maintainer(s).
Comment 4 Eitan Adler freebsd_committer freebsd_triage 2017-12-31 07:59:37 UTC 
For bugs matching the following criteria:

Status: In Progress Changed: (is less than) 2014-06-01

Reset to default assignee and clear in-progress tags.

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