Page MenuHomeFreeBSD
Differential D15085

vm: uma_core: Test that uk_free_slab isn't empty before fetching the first element
AbandonedPublic
Actions

Authored by manu on Apr 16 2018, 11:53 AM.
Tags
None
Referenced Files
Unknown Object (File)
Dec 23 2023, 3:10 AM
Unknown Object (File)
Dec 27 2022, 11:30 AM
Subscribers
imp

Details

Reviewers
jeff
kib
Summary

This is a direct commit to 11 this part of the code was fixed in
r327900 by jeff@




Sponsored By: Gandi.net

Reported by: Fatih Acar <fatih@gandi.net>
Diff Detail
Repository 
rS FreeBSD src repository - subversion 
Lint 
Lint Skipped
 
Unit 
Tests Skipped
 
Event Timeline
manu created this revision.Apr 16 2018, 11:53 AM
Herald added a subscriber: imp.  ·  View Herald TranscriptApr 16 2018, 11:53 AM
kib added inline comments.Apr 16 2018, 12:34 PM
sys/vm/uma_core.c


2314
Note this test.  It means that there must be an item free in slabs.  So there must be either a partially filled slab, or completely free slab.
manu added inline comments.Apr 16 2018, 12:57 PM
sys/vm/uma_core.c


2314
Then something else is happening because I've hit this code where LIST_FIRST at line 2318 returns NULL.

Unfortunately I don't know how to reproduce this panic ...
manu added a comment.Jan 16 2020, 9:28 PM
No plan to update this now.
manu abandoned this revision.Jan 16 2020, 9:29 PM
Revision Contents
Changeset List
PathSize
sys/
vm/
10 lines
Diff 41506
View Options
sys/vm/uma_core.c
Loading...