Problem with zfs.ko: lockstat_enabled symbol

[Guido Falsi]

On 12/09/20 13:18, Eric McCorkle wrote:
> I recently updated my other laptop, and now I'm getting a problem
> loading zfs.ko at boot, relating to the lockstat_enabled symbol not
> being defined (this happens during kernel boot and prevents mounting
> root, so I can't get an exact trace)
> 
> Looking at the new kernel, it seems that only zfs.ko contains the symbol
> lockstat_enabled (notably, kernel does not).  In my old kernel, zfs.ko
> does not contain a reference to that symbol.
> 
> Has anyone else seen this?  Is there a workaround, or was this a one-off
> bug?
> 

I was getting this too, should be fixed by r365466.

It can also be fixed by adding "options KDTRACE_HOOKS" to your kernel
config, so that symbol gets defined.

-- 
Guido Falsi <mad at madpilot.net>