I have the same on a 2019 Macook Air (Retina), 10.15.2 (19C57
Sleep Wake failure in EFI
Failure code:: 0xffffffff 0x0000001f
Please IGNORE the below stackshot
================================================================
Date/Time: 2019-12-26 15:14:12 +0100
OS Version: ??? ??? (Build ???)
Architecture: x86_64
Report Version: 29
Data Source: Stackshots
Shared Cache: 0x10cf4000 A9017781-3D05-3E5B-B9CE-DDD70DF7E523
Event: Sleep Wake Failure
Duration: 0.00s
Steps: 1
Boot args: chunklist-security-epoch=0 -chunklist-no-rev2-dev
Time Awake Since Boot: 18s
Process: swd [299]
Architecture: x86_64
Footprint: 420 KB
Start time: 2019-12-26 15:14:12 +0100
End time: 2019-12-26 15:14:12 +0100
Num samples: 1 (1)
Thread 0x9fb 1 sample (1) priority 3 (base 4)
<thread QoS background (requested background), thread darwinbg, process darwinbg, IO tier 2>
1 start + 1 (libdyld.dylib + 108541) [0x7fff73f0b7fd] 1
1 ??? [0x101c33454] 1
1 ??? [0x101c331dd] 1
1 __stack_snapshot_with_config + 10 (libsystem_kernel.dylib + 136138) [0x7fff7406c3ca] 1
*1 ??? [0xffffff80002e3206] 1
*1 ??? [0xffffff800099acba] 1
*1 ??? [0xffffff80008b3bc1] 1
*1 ??? [0xffffff8000306467] (running) 1
Binary Images:
0x7fff73ef1000 - 0x7fff73f26fff libdyld.dylib (733.8) <8E2D3DED-0756-37A0-9D55-B9264CA020B4> /usr/lib/system/libdyld.dylib
0x7fff7404b000 - 0x7fff74077fff libsystem_kernel.dylib (6153.61.1) <90F8650F-D3A9-38B3-BB8C-B5D3686393BC> /usr/lib/system/libsystem_kernel.dylib
Model: MacBookAir8,2, BootROM 1037.60.58.0.0 (iBridge: 17.16.12551.0.0,0), 2 processors, Dual-Core Intel Core i5, 1.6 GHz, 8 GB, SMC
Graphics: kHW_IntelUHDGraphics617Item, Intel UHD Graphics 617, spdisplays_builtin
Memory Module: BANK 0/DIMM0, 4 GB, LPDDR3, 2133 MHz, 0x80AD, 0x483943434E4E4E435054414C42522D4E5644
Memory Module: BANK 1/DIMM0, 4 GB, LPDDR3, 2133 MHz, 0x80AD, 0x483943434E4E4E435054414C42522D4E5644
AirPort: spairport_wireless_card_type_airport_extreme (0x14E4, 0x843), wl0: Nov 8 2019 11:47:53 version 9.112.2.1.32.5.37 FWID 01-a63bbadf
Bluetooth: Version 7.0.2f4, 3 services, 27 devices, 1 incoming serial ports
Network Service: Wi-Fi, AirPort, en0
USB Device: USB3.0 Hub
USB Device: Mass Storage Device
USB Device: USB 3.0 Bus
USB Device: USB2.0 Hub
USB Device: Plantronics Savi 7xx-M
USB Device: USB 2.0 BILLBOARD
USB Device: USB Billboard Device
USB Device: Apple T2 Bus
USB Device: Apple Internal Keyboard / Trackpad
USB Device: Headset
USB Device: Ambient Light Sensor
USB Device: FaceTime HD Camera (Built-in)
USB Device: Apple T2 Controller
Thunderbolt Bus: MacBook Air, Apple Inc., 47.1