| From: | Daniel Gustafsson <dgustafsson(at)postgresql(dot)org> |
|---|---|
| To: | pgsql-committers(at)lists(dot)postgresql(dot)org |
| Subject: | pgsql: Fix integer underflow in shared memory debugging |
| Date: | 2024-02-29 11:45:25 |
| Message-ID: | E1rfeqr-001Nvg-Ja@gemulon.postgresql.org |
| Views: | Whole Thread | Raw Message | Download mbox | Resend email |
| Thread: | |
| Lists: | pgsql-committers |
Fix integer underflow in shared memory debugging
dsa_dump would print a large negative number instead of zero for
segment bin 0. Fix by explicitly checking for underflow and add
special case for bin 0. Backpatch to all supported versions.
Author: Ian Ilyasov <ianilyasov(at)outlook(dot)com>
Reviewed-by: Robert Haas <robertmhaas(at)gmail(dot)com>
Discussion: https://postgr.es/m/GV1P251MB1004E0D09D117D3CECF9256ECD502@GV1P251MB1004.EURP251.PROD.OUTLOOK.COM
Backpatch-through: v12
Branch
------
REL_12_STABLE
Details
-------
https://git.postgresql.org/pg/commitdiff/24dc4afebd5a82f30aed6bd18d48ff42ef787410
Modified Files
--------------
src/backend/utils/mmgr/dsa.c | 10 +++++++---
1 file changed, 7 insertions(+), 3 deletions(-)
| From | Date | Subject | |
|---|---|---|---|
| Next Message | Dean Rasheed | 2024-02-29 11:52:05 | pgsql: Remove field UpdateContext->updated in nodeModifyTable.c |
| Previous Message | Daniel Gustafsson | 2024-02-29 11:45:01 | pgsql: Fix integer underflow in shared memory debugging |