MP 6,1 Big Sur - Kernel Panic: Sleep Wake failure in EFI

[John Boydon]

Hello all,
I have updated Catalina to Big Sur 11.1. After that I have got several kernel panics, all of them related to:

Sleep Wake failure in EFI
Failure code:: 0x00000000 0x0000001f

With Catalina these kind of problems never happened to me.

I have a MacPro6,1 12c, 64GB, D500 with Intel SSD 660p 2TB (SSDPEKNW020T8) and a Dell U3415W (3440x1440 60Hz) connected via TB.

The monitor is shared with a laptop via its internal KVM Switch. On mac, I use ddcctl to switch to the laptop.

So far the kernel panic only happen when I am "connected" to the laptop, if I invoke sleep manually from mac, then it wake up without problems.
I suppose that when I am "connected" to the laptop, the mac goes in sleep mode with no displays attached to it. May be this is the reason why I am not able to manually replicate the kernel panic.

Can somebody help me?

regards
john

 

[startergo]

I had that failure. I think it was related to the usb.

 

[Dayo]

I have updated Catalina to Big Sur 11.1. After that I have got several kernel panics, all of them related to:

Sleep Wake failure in EFI
Failure code:: 0x00000000 0x0000001f

What type of Mac do you have and how did you install BS?

 

[startergo]

What type of Mac do you have and how did you install BS?

MacPro6,1

 

[Dayo]

MacPro6,1

Thanks missed that. Wonder how BS was implemented though.

 

[startergo]

Thanks missed that. Wonder how BS was implemented though.

It is a supported model (I linked it above)

 

[Dayo]

It is a supported model (I linked it above)

The Trashcan is supported indeed. Was interested given the similar issue you had with 5,1 which was assumed to be to do with the USBMap Kext.

To @John Boydon ... no idea so far why this issue. Since your machine is supported, perhaps worth opening a ticket with Apple?

 

[startergo]

which was assumed to be to do with the USBMap Kext.

The only thing the kext does is to rename the USB device according to the model nomenclature (and add the original properties to it).

 

[John Boydon]

Hello all.
I performed a SMC reset, now the kernel panic cannot be reproduced.
Let hope that this solves the issue definitely, otherwise I will try to disable the standby (pmset -a standby 0).

Thanks to everyone!
john

 

[John Boydon]

Gosh !
Same kernel panic today.

 

[E__F__]

Just had this panic today. No external displays but had to uninstall and reinstall bootcamp last night due to a needing a clean install on windows. I'm on a MacBook Pro 16,1