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Fix race condition where heap_delete() fails to pin VM page.

author Jeff Davis <jdavis@postgresql.org>

2022年9月22日 17:58:49 +0000 (10:58 -0700)

committer Jeff Davis <jdavis@postgresql.org>

2022年9月22日 18:04:00 +0000 (11:04 -0700)

commit 163b0993a162ebae00fe5de8f593a5da28821a1b

tree c3ae00157bf9fedf60f36e20357b5a32e5d86bc2 tree

parent 790bf615ddba8a0ba3b870915d03438ce9cb7860 commit | diff

Fix race condition where heap_delete() fails to pin VM page.

Similar to 5f12bc94dc, the code must re-check PageIsAllVisible() after
buffer lock is re-acquired. Backpatching to the same version, 12.

Discussion: https://postgr.es/m/CAEP4nAw9jYQDKd_5Y+-s2E4YiUJq1vqiikFjYGpLShtp-K3gag@mail.gmail.com
Reported-by: Robins Tharakan
Reviewed-by: Robins Tharakan
Backpatch-through: 12

src/backend/access/heap/heapam.c diff | blob | blame | history

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