Re: Vim freezes with 100% cpu usage on exit

Sometimes when I reattach to the tmux session after the virtual machine has been frozen for a long time vim freezes right away without consuming 100% cpu, it just stays frozen for about 5-10 minutes then comes back(but when I quit after that vim freezes again with 100% cpu).

I'm guessing vim is running some kind of periodic activity that goes crazy when the virtualbox daemon running in the vm  suddenly updates the hardware clock after a long time period.

At first I tought this had something to do with the CursorHold autocmd but after reading the documentation I saw it is only triggered after the user presses a key which doesn't apply in this case since the virtual machine is frozen.

This is really annoying me, I was hoping someone could give me hints on how to debug this issue.

On Sun, Mar 31, 2013 at 9:42 PM, Thiago Padilha <tpadilha84@gmail.com> wrote:

Hi

I'm experiencing a bug with vim inside virtualbox running ubuntu 12.04 LTS(which automatically installs guest additions). I noticed the bug happens with the following actions:

1 - I open vim inside a tmux session and start working on some project. I always have two files open in vertically split window(not sure if this is relevant)

2 - I detach the tmux session, save virtualbox state then shutdown my computer.

3 - Some time later(like 30 minutes) I turn my computer on, resume virtualbox and reattach to the tmux/vim session.

When I reattach, everything is working normally, except when I try to quit vim with :qa . When I do that, vim freezes and starts to consume 100% cpu until I send a SIGKILL.

This always happens with me. The vim version I'm using is the one that comes with ubuntu 12.04 LTS(7.3.429), but I also have tested with the latest build(875) and the problem persists. The ubuntu guest only contains the minimal install (console-only)

To whoever is interested in investigating this bug and fails to reproduce it: just ask and I will try to collect more info about my working environment.

Thanks in advance.

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