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0fc2f533a9
Previously, if memory context logging was triggered repeatedly and rapidly while a previous request was still being processed, it could result in recursive calls to ProcessLogMemoryContextInterrupt(). This could lead to infinite recursion and potentially crash the process. This commit adds a guard to prevent such recursion. If ProcessLogMemoryContextInterrupt() is already in progress and logging memory contexts, subsequent calls will exit immediately, avoiding unintended recursive calls. While this scenario is unlikely in practice, it's not impossible. This change adds a safety check to prevent such failures. Back-patch to v14, where memory context logging was introduced. Reported-by: Robert Haas <robertmhaas@gmail.com> Author: Fujii Masao <masao.fujii@gmail.com> Reviewed-by: Atsushi Torikoshi <torikoshia@oss.nttdata.com> Reviewed-by: Robert Haas <robertmhaas@gmail.com> Reviewed-by: Artem Gavrilov <artem.gavrilov@percona.com> Discussion: https://postgr.es/m/CA+TgmoZMrv32tbNRrFTvF9iWLnTGqbhYSLVcrHGuwZvCtph0NA@mail.gmail.com Backpatch-through: 14 |
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