I can't give you great instructions because I don't have any panic logs of my 
own so that I could tell you for sure where to find them.

Open Console, click one by one on all the folders and subfolders in the 
left-hand column (the system-y ones, at any rate, you can skip stuff like 
Microsoft) looking in the center column for any that start with "panic" and 
have the right date and time on them. I expect you'll find them somewhere under 
either /Library/Logs or /var/log. Keep in mind that folders that have 
subfolders also have logs directly inside them, so don't miss clicking directly 
on them.

If you find an appropriate panic log, right-click on it, choose Reveal in 
Finder, then copy it to a cloud-accessible location.


> On Mar 3, 2021, at 12:19 PM, Jeff Weinberger <[email protected]> wrote:
> 
> 
> 
> On Wed, Mar 3, 2021 at 1:49 PM Macs R We <[email protected] 
> <mailto:[email protected]>> wrote:
> Most direct thing to do is log into the account that doesn't crash, go into 
> Console, find the panic log from that crash, and make it available somewhere 
> where we can look at it.
> 
> Happy to, but pardon my ignorance here. I posted messages from the system 
> log, but don't know where to find the panic log. If you can help point me 
> there, I'll post it .If it helps I'm on an iMac (late 2015) running 
> MacOS11.1. Thank you!
>  
> 
> I do like the technique of booting from a drive with a virgin OS on it.  I 
> keep one of those, most people don't.
> 
> I don't, sadly. I"m hesitant to erase my internal drive because the data loss 
> (even with time machine) would be tough, but if nothing else works....
>  
> 
>> On Mar 3, 2021, at 11:40 AM, Jeff Weinberger <[email protected] 
>> <mailto:[email protected]>> wrote:
>> 
>> 
>> 
>> On Wed, Mar 3, 2021 at 1:17 PM Matt Penna <[email protected] 
>> <mailto:[email protected]>> wrote:
>> Whenever I encounter such a problem, my first steps are to run Apple 
>> Hardware Test (AHT), and if that shows no problems (it’s far from 
>> foolproof), try a completely clean install of the OS to a blank drive. See 
>> if you can get any clues from either of these steps.
>> 
>> If you need AHT for your Mac, you can find it for many different Mac models 
>> here on GitHub:
>> 
>> https://github.com/upekkha/AppleHardwareTest 
>> <https://github.com/upekkha/AppleHardwareTest>
>> 
>> Let us know how it goes.
>> 
>> You mentioned that occasionally your Mac refuses to start up. Can you 
>> describe the crashes you’re seeing? Are you getting the gray screen with a 
>> message that you need to restart your computer, or is it just a reboot with 
>> no warning?
>> 
>> It actually crashes when I try to log in to my user account. It starts up 
>> slowly, but does start, then I log in and I get the grey screen that says I 
>> need to reboot.
>> 
>> I am able to log into an alternate user account, so I don't think it's 
>> hardware...but I'll give that a try.
>> 
>> Thanks!
>>  
>> 
>>      Matt
>> 
>> 
>>> On Mar 3, 2021, at 12:56 PM, Jeff Weinberger <[email protected] 
>>> <mailto:[email protected]>> wrote:
>>> 
>>> Thank you for your help with SIMBL I removed all traces I could find of it 
>>> and it no longer appears in logs, crash reports, 'find' commands, etc.
>>> 
>>> May I impose on your collective expertise to help diagnose the ongoing 
>>> crashes?
>>> 
>>> But the system crashes have not stopped. I have identified that it is the 
>>> user account (I am the only user of the system, so having my user account 
>>> is kind of important). I only have two use accounts: 1) mine and 2) a test 
>>> account just in case there's a problem with mine - which there is.
>>> 
>>> Every time I restart and then login to my account my Mac crashes. When I 
>>> log in to the test account, it is very slow, but successfully logs in and I 
>>> can do some testing. 
>>> 
>>> I noticed some issues with one of my two external drives, so I have 
>>> disconnected it. The crashes continue. 
>>> 
>>> I see from the log files that "cloudd" (the iCloud daemon) crashes very 
>>> frequently. I don't know if this is relevant.
>>> 
>>> Any help is appreciated!
>>> 
>>> Here is the system.log file leading up to the last crash:
>>> 
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