Safety harnesses

Graham Perrin grahamperrin at
Fri Jun 18 01:47:57 UTC 2021

On 17/06/2021 20:57, Ronald F. Guilmette wrote:

> Graham Perrin<grahamperrin at>  wrote:
>> The surprise, to me, was losing fifty-something seconds' worth of data
>> in a kernel panic situation...
> In an ideal universe, the kernel never panics. …


tl;dr I was (originally) aiming to get backtraces for panics, intended 

The surprises with UFS were (originally) having no crash dumps after 
editing /etc/rc.conf to enable crash dumps; /usr/local/etc/sudoers empty 
after use of visudo; gdb not found after installing gdb; and so on. 
Eventually I discovered that all such losses were expected.

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