I am having similar issues where i'm getting emails about tailwatch_d failing every hour. When looking in services it shows it's not running (shows in red in whm).
I have restarted cpanel, updated and restarted cpanel, gone thru the logs on the server and found an error that i have since fixed and then updated and restarted cpanel but i'm still receiving the emails every hour and tailwatch_d is still not running properly.
I am receiving this error in the tailwatch_d logs still also
2009-10-01 23:35:03 UTC [Cpanel::TailWatch::Utils::Stop] 2009-10-01 23:35:03 UTC [main] Could not stop current process '3577'
2009-10-01 23:35:03 UTC [Cpanel::TailWatch::ChkServd] Opened /usr/local/cpanel/logs/tailwatchd_log in append mode
2009-10-01 23:35:03 UTC [Cpanel::TailWatch::ChkServd] Opening /var/log/chkservd.log in append mode
2009-10-01 23:44:11 UTC [Cpanel::TailWatch::ChkServd] Opened /usr/local/cpanel/logs/tailwatchd_log in append mode
2009-10-01 23:44:11 UTC [Cpanel::TailWatch::ChkServd] Opening /var/log/chkservd.log in append mode
2009-10-01 23:44:13 UTC [main] [STOP ??] 3577
this started shortly after running an update in cpanel after changing from release to current update settings. Rolling back cpanel to release was tried also but hasn't fixed the issue (i don't think the error and the version of cpanel are related but only a coincedence that this started showing up after an update).
I have searched the forums and tried everything i've found (pretty much what's listed above) and i'm not finding it's fixing the issue. I'm getting my logs from today from the server right now to see if the error messages have changed (changed from the entries that were showing last night) and if i find new error messages I will post them.
Does anyone here have any tips or ideas as to what else I should try to fix this issue?