Hi Reuben,
I hope you don't mind me copying the dovecot list again.
dovecot: Aug 21 04:08:22 Error: IMAP(reuben): inotify_rm_watch() failed: Invalid argument
Odd.
This is with a 2.6.13-rc6-mm1 release. I've posted to LKML because there is also a kernel stack produced at one point which looks inotify related (but the messages above are contant). See http://www.ussg.iu.edu/hypermail/linux/kernel/0508.2/1180.html and the followup from akpm.
Thanks for the link. I don't think akpm is right, unless something is really odd here. Could you add debugging output for me please?
Maybe something like (this is not a patch you can apply, look at line 164 in src/lib/ioloop-notify-inotify.c)
ctx->inotify_fd = inotify_init();- i_warning("inotify_init returned fd %d", ctx->inotify_fd); if (ctx->inotify_fd == -1) {
and line 106: IN_CLOSE | IN_MODIFY);
- i_warning("inotify_add_watch returned %d", watchdescriptor); if (watchdescriptor < 0) { and line 145: }
- inotify_rm_watch("removing wd %d from inotify fd %d", io->notify_context, ctx->inotify_fd); if (inotify_rm_watch(ctx->inotify_fd, io->notify_context) < 0)
Or something similar.
If that doesn't help and output looks consistent (we're not removing a watch descriptor from a wrong fd etc.), can you try removing the fd_close_on_exec call please (line 171)? I don't know if that could cause trouble (I don't even think that the imap binary ever forks) but you never know.
johannes