01420: pmwiki-2.2.98 to pmwiki-2.2.99 upgarade "Cannot acquire lockfile"
I tried to upgrade my local testing installation from pmwiki-2.2.98 to pmwiki-2.2.102 , and I got a "Cannot acquire lockfile" message.
So, I downgraded to version 101, then to 100, to 99. The problem was there in all above cases. Then I downgraded to version 98, and the wiki "came back". Most likely, something has changed between version 98 and 99, and this causes the problem.
The way I did the up/downgrade was by, simply, extracting the .zip file.Then I copied all the new version's files and folders and pasted them over my wiki installation (replace all files and folders). I don't know if that makes any difference.
I also checked the ChangeLog, and Release Notes, but since I don't know php, I couldn't see anything that would help me.
My system is Mageia 6 x64, with php 5.6.31
Indeed, nothing in PmWiki apparently changed that would relate to the lock file, or to file permissions, between 2.2.98 and 2.2.102. Have you read Troubleshooting#flock and ErrorMessages#flock? This may have been a temporary problem, deleting a wiki.d/.flock file may have fixed it. --Petko September 09, 2017, at 09:28 PM