Answer to "iMac freezes up randomly, 1st core 99% kernel process"Okay, here is an update: a) Apple's support is very disappointing. It was escalated to a higher level and I worked directly with a person (contractor, but @apple.com address) who helped me over one call, assigned a case id and then completely disappeared after that, despite my followups. Maybe he gave up, but this was rather unprofessional considering Apple's reputation. b) Anyway, left to myself, I had a hunch that Safari was the problem child, because really most of what we do is browse. Naturally, my first instinct led me to keep clearing the caches - both Flash and otherwise. Instead of relying on my doing it manually, I created a LaunchDaemon that would run twice a day and remove everything. My system has since been *much* more stable. I have only rare beach balling issues, but again that may change. I've been observing this good behavior for the past 3-4 weeks. Here is my script that runs twice a day: (make sure you do a chmod a+x bin/cacheclean.sh) [Arjun@~]$ cat bin/cacheclean.sh rm -rf "...
Answer to "iMac freezes up randomly, 1st core 99% kernel process"Thank you for your response. I've been following this up aggressively and Apple has escalated me to their next level of support folks - I had a call this morning. I'll keep you posted with details as they progress. I video recorded what was going on when Apple kept telling me it was a 3rd party installed software problem - https://www.youtube.com/watch?v=kMy1Hxh8... . No, I haven't gotten around replacing either the HDD or memory yet - I hope apple just swaps my iMac - its an expensive paperweight for me right now.
Answer to "iMac freezes up randomly, 1st core 99% kernel process"was this problem resolved? I have exactly the same issue. All HW tests pass and I also got the logic board replaced. fresh reinstalled OS (after wiping full HDD) No cigar.