Hello there,
I have the same issue on my laptop. The latest occurence happened yesterday after I put it on sleep mode.
Mar 09 17:50:33 imap(emmanuel)<21422><28d7M5pMX/kAAAAAAAAAAAAAAAAAAAAB>: Info: Disconnected: Logged out in=34 out=583 deleted=0 expunged=0 trashed=0 hdr_count=0 hdr_bytes=0 body_count=0 body_bytes=0 Mar 09 17:55:50 imap(17031): Warning: Time moved forward by 287.719079 seconds Mar 09 17:55:50 imap(19306): Warning: Time moved forward by 287.717753 seconds Mar 09 17:56:20 master: Warning: Time moved forward by 287.716931 seconds - adjusting timeouts. Mar 09 18:19:31 imap(17031): Warning: Time moved forward by 1364.212831 seconds Mar 09 18:19:31 imap(19306): Warning: Time moved forward by 1364.213216 seconds Mar 09 18:35:27 master: Panic: file ./time-util.h: line 40 (timeval_add_usecs): assertion failed: (usecs >= 0)
system.log: Mar 9 17:55:39 ETC-EBT-MBA syslogd[157]: ASL Sender Statistics Mar 9 18:19:25 ETC-EBT-MBA syslogd[157]: ASL Sender Statistics Mar 9 18:35:20 ETC-EBT-MBA syslogd[157]: ASL Sender Statistics
Hope this helps.
Emmanuel