Page MenuHomeFreeBSD
Differential D45578

arm64 pmap: Release PTP reference on leaf ptpage allocation failure
ClosedPublic
Actions

Authored by bnovkov on Jun 13 2024, 4:28 PM.
Tags
None
Referenced Files
F151429131: D45578.diff
Wed, Apr 8, 8:43 AM
Unknown Object (File)
Tue, Apr 7, 1:48 AM
Unknown Object (File)
Sat, Apr 4, 3:51 PM
Unknown Object (File)
Sat, Apr 4, 11:51 AM
Unknown Object (File)
Sat, Apr 4, 11:27 AM
Unknown Object (File)
Sat, Apr 4, 3:11 AM
Unknown Object (File)
Wed, Mar 25, 9:41 AM
Unknown Object (File)
Wed, Mar 25, 2:03 AM
View All 85 Files
Subscribers
emaste
imp

Details

Reviewers
markj
alc
kib
andrew
manu
Commits
rG5d4545a2270e: arm64 pmap: Release PTP reference on leaf ptpage allocation failure
Summary

808f5ac fixed an edge case invloving mlock() and superpage creation
by creating and inserting a leaf pagetable page for mlock'd superpages.
However, the code does not properly release the reference to the
pagetable page in the error handling path.
This commit fixes the issue by adding calls to 'pmap_abort_ptp'
in the error handling path.

Diff Detail

Repository
rG FreeBSD src repository
Lint
Lint Skipped
Unit
Tests Skipped
Build Status
Buildable 58166
Build 55054: arc lint + arc unit

Revision Contents
Changeset List

PathSize
sys/
arm64/
arm64/
2 lines

Diff 139807

View Options

sys/arm64/arm64/pmap.c

Loading...