I can confirm this using zsh 4.3.17 in Ubuntu Precise, using your config. I am adding a full test case to the description.
** Changed in: zsh (Ubuntu) Importance: Undecided => Medium ** Changed in: zsh (Ubuntu) Status: New => Triaged ** Description changed: $ apt-cache policy zsh zsh: Installed: 4.3.6-4ubuntu1 Candidate: 4.3.6-4ubuntu1 Version table: When using auto completion to list files in directories with certain characters, zsh enters a loop and uses 100% CPU(50% to be precise as I have 2 cores) for a while, almost 30 seconds on Desktop I haven't exactly found out the problematic characters but I've got a reproducible case. - To reproduce do the following: + TEST CASE: + $ cd /tmp + $ wget https://bugs.launchpad.net/ubuntu/+source/zsh/+bug/351129/+attachment/1058927/+files/.zshrc + $ export ZDOTDIR=/tmp + $ zsh $ mkdir 2k5\ Express\ line+SPs $ 2k5\ Express\ line+SPs/<tab> This should show files inside the empty folder you have just created but instead zsh enters a loop and locks the CPU for a while. ** Changed in: zsh (Ubuntu) Importance: Medium => Low -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/351129 Title: Problem in completion with certain characters in folder name To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/zsh/+bug/351129/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs