Strange case of logd process crashing every 10 - 15 minutes

Ok - I have fixed this problem by going into recovery mode, erasing the hard drive and then re-installing the OS. I haven't restored from backup as that'd probably reintroduce the problem. I'm now just copying across the files I need from my backup drive and re-installing all required apps.

I dunno what cause this problem, but it seemed to start around the time I upgraded to Mojave - possibly related to incomplete / incorrect conversion to APFS (I have an iMac with a fusion drive).

Thanks for your help Leroy :)

Yeh there’s a few, I pick on it because it’s crashing constantly the others are one off crashes. Also I uninstalled those apps to see if it changed anything, it didn’t.

Ive been keeping the activity monitor and console open for days to see what happens when the system locks up, every single time it coincides with a logd crash.

As I mentioned in my original post I’ve booted into Safe mode and tried using another user account, neither resolved the problem, still constant logd crashes.

OK, I did the OS reinstall from the Recovery, didn't work - I stil have the logd crashes. Started crashing again once every 10 minutes or so as soon the installation was complete.

Would doing a complete clean install of everything help do you think? Wipe the hard disk, re-install OS and restore from backup?

Thanks Leroy.

I'm gonna try to get through work this week with the constant freezing and then try to a clean install next weekend.

Is it best to do the clean install using Recovery and erasing the drive in Disk Utility then reinstalling the OS or is it better to use a bootable USB installer or are they both basically the same?

I'm thinking I'll do some testing on the clean install then try restoring some files I need (not system files), then doing fresh installs of all the apps I need (not restoring them from the backup but re-downloading fresh installs). Hopefully that way if the problem is resolved with the clean install it won't be reintroduced as I add back files / apps I need.

I don't know if you'll be able to make any sense of this, but I've added the few seconds before the crash from the system.log file - I know this says the libdispatch is crashing, but the crash log for the logd crash says it crashed at the exact same time, so maybe logd is failing as a result of the libdispatch problem...

There are A LOT of entries referring to a bug in libdispatch in the system log, I don't know if that significant or not.

I'd love to hear you thoughts

Error

Ah ok, I didnt realise I could reinstall OS without wiping data - thanks Leroy, I will try this as soon as I can and report back.

Thanks Leroy,

Yeh I also suspected HD or memory issues, but I've run multiple scans on both and they report they're fine. I ran Disk Utility in recovery mode several times and I've run memtest and the built-in hardware diagnostics - all find no errors.

I had a look in the log/DiagnosticReports folder for for kernel panic logs, didn't find any - just heaps of logd crash logs, quite a few shutdownStall logs, some .userspace_watchdog_timeout.spin logs and quite a few .awd files :(