3
2
Having kernel IO errors in the console, extremely slow boots, and reproducible freezes.
Tech Specs:
- Macbook Pro Early 2008
- 4 GB ram
- 500 GB Seagate Momentus XT HDD/SSD hybrid drive (installed late 2010)
- Up to date firmware (SD24) a couple weeks after installation (no problems since, until now)
- OS X 10.6.6
- BootCamp Windows 7 Ultimate 64bit
I have a small portion of the console output here (drop box link to .rtf)
Windows 7 Partition works fine. Boots normal, operates normal.
I get the line kernel disk0s2: I/O error
a lot. It is reproducible on:
- Right click on anything on the dock (~5-10s hang, no beachball)
- Wrench icon in Chrome (latest version) (~45-60s hang, no menu, beachball, then ~20-40s hang, menu open, no beachball)
- Resolution change or external monitor connected (dvi-vga, been using it for > a year) (~20-30s hang on blue screen, then ~10-40s hang on desktop, readjusting sizes)
- Choosing a space from Spaces (~1-6s hang)
It also happens other times, that I'm sure have a pattern, I just haven't seen yet, but I don't think it is random.
What I have tried:
- Using Disk Utility from within OS X to verify the partition, check/repair permissions
- no major problems found
- Using Disk utility from the snow leopard disk to repair the partition
- no problems found
- do a disk check from within windows 7
- Using OnyX to clear system/user cache
- No effect
- Using OnyX to check S.M.A.R.T status
- Verified
- Using OnyX to verify disk
- No problems found
- Using original system disks to perform "Apple Hardware Diagnostics" (quick and extended)
- No problems found
Any ideas? I haven't yet tried reinstalling OSX. I have fairly up to date backups (time machine in OS X and manual in Windows 7) - but I'd prefer to not have to format the hard drive.
Edit: Boot time is ~4-10 minutes for OS X. Still ~1 minute for Windows
Edit 2: Forgot to mention - spotlight is slow, or non functioning. This may be due to the disk scans and such. OnyX has an option to re index that I haven't had a chance to try yet.
Update did a restore from a time machine backup from before the issues, now it won't boot at all. Hangs at apple loading logo for 30+ minutes.
Update 2: Did a "fresh install" of system files over my existing partition. I assumed this would erase everything. Fortunately (though I don't know how) when it booted (in < 1m) after the install, my files were there from the restore point I tried in update 1. No more errors, and it's running fine. I think it had to be some system file(s) corrupted, causing it.
Although you ran quite a few diagnoses, have you tried another disk, e.g. if you still have the previous HDD? Restore OS X from Time Machine on it and see if the problem persists. – Daniel Beck – 2011-02-15T13:55:34.057
@Daniel Beck For restoring from Time Machine, do you mean format the partition, reinstall and restore? Would that require cloning/restoring the windows partition as well? – xdumaine – 2011-02-15T14:00:00.523
I mean restore from Time Machine during OS X setup. IIRC you can restore the whole system, without installing it first. But I wouldn't count on old data to still exist afterwards. You can restore without your Windows partition. – Daniel Beck – 2011-02-15T14:02:25.047
I'll give that a try later. I'm at work, now. – xdumaine – 2011-02-15T14:14:22.307
I believe this belongs to http://apple.stackexchange.com/
– Brave Newbie – 2011-02-15T14:32:53.833@Qosmo are there defined rules to this? I think it is still relevant on SuperUser. either way, a vote to move/migrate seems worthy, but I don't think it warrants a down vote - I still need the question answered, and I think I gave good details and formed it as a good question. – xdumaine – 2011-02-15T15:19:01.143
@Qosmo you might want to check out this meta.superuser question
– xdumaine – 2011-02-15T15:54:16.057@Qosmo You're wrong. We accept Mac and OS X questions anyway, and have quite a few users on this site (me included) that are happy to answer them. – Daniel Beck – 2011-02-15T15:57:48.227
Hey, just trying to help. Seems idiotic to make a Apple website answering computer software and hardware questions when SU answers them. I believe I'm not far from the truth. I said I believe it belongs there, I didn't said it was forbidden here. In fact I'm against those stupid Apple/Linux/Ubuntu fanboy branches when it could be all answered here, that's why we have tags. ( Oh I wanted to favorite, sorry Rovi :( ) – Brave Newbie – 2011-02-15T17:26:58.240
@Daniel Beck update: did a restore from time machine, now it won't boot. Hangs at apple logo loading for 30+ minutes. – xdumaine – 2011-02-16T00:27:53.693
@rovi I suggested to restore the backup to another disk. Although you seem to have your answer now -- sounds very much like the disk, no matter what your tools say. – Daniel Beck – 2011-02-16T06:50:55.997