[3.10] bpo-45521: Fix a bug in the obmalloc radix tree code. (GH-29051) #29122
Conversation
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters. Learn more about bidirectional Unicode characters
MAP_BOT_LENGTH was incorrectly used to compute MAP_TOP_MASK instead of MAP_TOP_LENGTH. On 64-bit machines, the error causes the tree to hold 46-bits of virtual addresses, rather than the intended 48-bits. (cherry picked from commit 311910b) Co-authored-by: Neil Schemenauer <nas-github@arctrix.com>
| @nascheme: Status check is done, and it's a success ✅ . |
3 similar comments
| @nascheme: Status check is done, and it's a success ✅ . |
| @nascheme: Status check is done, and it's a success ✅ . |
| @nascheme: Status check is done, and it's a success ✅ . |
Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment
4 participants
Add this suggestion to a batch that can be applied as a single commit. This suggestion is invalid because no changes were made to the code. Suggestions cannot be applied while the pull request is closed. Suggestions cannot be applied while viewing a subset of changes. Only one suggestion per line can be applied in a batch. Add this suggestion to a batch that can be applied as a single commit. Applying suggestions on deleted lines is not supported. You must change the existing code in this line in order to create a valid suggestion. Outdated suggestions cannot be applied. This suggestion has been applied or marked resolved. Suggestions cannot be applied from pending reviews. Suggestions cannot be applied on multi-line comments. Suggestions cannot be applied while the pull request is queued to merge. Suggestion cannot be applied right now. Please check back later.
MAP_BOT_LENGTH was incorrectly used to compute MAP_TOP_MASK instead of
MAP_TOP_LENGTH. On 64-bit machines, the error causes the tree to hold
46-bits of virtual addresses, rather than the intended 48-bits.
(cherry picked from commit 311910b)
Co-authored-by: Neil Schemenauer nas-github@arctrix.com
https://bugs.python.org/issue45521