Hi, all. I updated the patch for this bugfix, the previous one missed the modification of function InitAuxiliaryProcess, please check the new patch.
Thanks & Best Regard
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发件人：蔡梦娟(玊于) <mengjuan(dot)cmj(at)alibaba-inc(dot)com>
发送时间：2023年6月5日(星期一) 19:44
收件人：pgsql-hackers <pgsql-hackers(at)lists(dot)postgresql(dot)org>
抄 送：robertmhaas <robertmhaas(at)gmail(dot)com>
主 题：Fix missing initialization of delayChkptEnd
Hi, all
I got a coredump when testing with the REL_14_STABLE branch, which is as below:
I noticed that in commit 10520f4346876aad4941797c2255a21bdac74739, int delayChkpt has been changed back to bool delayChkpt + bool delayChkptEnd. However, the initialization to delayChkptEnd is missed in function InitProcess. When autovacuum_proc1 is in RelationTruncate, the delayChkptEnd will be set as true. If autovacuum_proc1 receives a cancel signal and handles it at this time, autovacuum_proc1 will exit without reseting delayChkptEnd in its error handling process. After that, if autovacuum_proc2 reuses this PGPROC structure, the above error will occur.
I add a patch to fix this bug in the attachment, hope you can check it.
Thanks & Best Regard