Process:               Core Shell [75570]
Path:                  /Applications/Setapp/Core Shell.app/Contents/MacOS/Core Shell
Identifier:            io.coressh.shell-setapp
Version:               2.7 (3104)
Code Type:             X86-64 (Native)
Parent Process:        ??? [1]
Responsible:           Core Shell [75570]
User ID:               501

Date/Time:             2021-04-25 14:28:47.397 +0800
OS Version:            macOS 11.2.3 (20D91)
Report Version:        12
Bridge OS Version:     5.2 (18P4347)
Anonymous UUID:        119A425B-BA71-25C3-60C4-8629DFAA75CB

Sleep/Wake UUID:       095E9478-2352-4A80-87C7-10ADDD182BF2

Time Awake Since Boot: 2500000 seconds

System Integrity Protection: enabled

Crashed Thread:        0  Dispatch queue: com.apple.main-thread

Exception Type:        EXC_BAD_INSTRUCTION (SIGILL)
Exception Codes:       0x0000000000000001, 0x0000000000000000
Exception Note:        EXC_CORPSE_NOTIFY

Termination Signal:    Illegal instruction: 4
Termination Reason:    Namespace SIGNAL, Code 0x4
Terminating Process:   exc handler [75570]

log.txt (95.4 KB)

Thank you very much for the crash log.

Will try to fix it in next update.

Kindly Regards,


Including this report, we have four similar bug reports:

All these issues have same termination reason:

Termination Reason:    Namespace SIGNAL, Code 0x4

and happen on macOS 11 or later, have no obvious clue in code base, very weird.

In topic Core Shell crashes on opening on MacOS Big Sur, @cseils reported that issue gone after reset the SMC on his Mac.

In topic Crash on boot, @C_Eddie said that this has been fixed in version 3. But in Core Tunnel will not start, @srowe is out of luck.

It's very likely an issue of Mac (or macOS) itself, I suggest you rest the SMC of your Mac:

  • For Mac with Apple Silicon, shut down your computer, wait 5 minutes, then power on the computer.
  • For other Mac computers, see the Apple Support article How to reset the SMC of your Mac.

Please let me know if you still face this issue after reset the SMC.