Kernel Panics after installing OpenCore. Help needed

Hi there. I'm suffering from Kernel Panics after finally migrating from Clover to OpenCore. I'll try to explain all the details here:


  • Gigabyte z87x D3H
  • i5 4670k Haswell, 16GB RAM (tested several times during the years without issue)
  • Radeon 580 8GB and iGPU enabled.
  • iMac 14,2
  • 1 SSD for MacOS Catalina, with OpenCore 0.62 installed with the official guide from this sub (Dortania), following the guide and the Haswell recommendations to the point.
  • 1 HDD for Windows 10
  • All of the hibernation features are disabled.
  • Used Onyx to clean all system caches to clean any potential issue from MacOS.
  • The KP happens after resume from sleep. The screen freezes, it doesn't restart.

The last two kernel panic reports I had since I installed OpenCore look a bit different than the previous ones I had from Clover, I'll paste the last one here:

panic(cpu 0 caller 0xffffff8008e469aa): Kernel trap at 0xffffff8008e28b94, type 13=general protection, registers: CR0: 0x000000008001003b, CR2: 0x00000001c8fc0240, CR3: 0x0000000280a83012, CR4: 0x00000000001626e0 RAX: 0x000000000042f5fe, RBX: 0x0000000000000000, RCX: 0x0000000000000000, RDX: 0xffffff802b0f3320 RSP: 0xffffff922cfe2fc0, RBP: 0xffffff922cfe3030, RSI: 0x0000000000000000, RDI: 0xffffff802b0f3320 R8: 0x0000000000000060, R9: 0x0000000000010114, R10: 0x0000000000000b58, R11: 0xfffffe8b7541a000 R12: 0x8a00000000000000, R13: 0xffffff922cfe3110, R14: 0x0000000000335419, R15: 0x0000000000000000 RFL: 0x0000000000010246, RIP: 0xffffff8008e28b94, CS: 0x0000000000000008, SS: 0x0000000000000010 Fault CR2: 0x00000001c8fc0240, Error code: 0x0000000000000000, Fault CPU: 0x0, PL: 1, VF: 0 Backtrace (CPU 0), Frame : Return Address 0xffffff8008b51220 : 0xffffff8008d1a65d mach_kernel : _handle_debugger_trap + 0x49d 0xffffff8008b51270 : 0xffffff8008e54a75 mach_kernel : _kdp_i386_trap + 0x155 0xffffff8008b512b0 : 0xffffff8008e465fe mach_kernel : _kernel_trap + 0x4ee 0xffffff8008b51300 : 0xffffff8008cc0a40 mach_kernel : _return_from_trap + 0xe0 0xffffff8008b51320 : 0xffffff8008d19d27 mach_kernel : _DebuggerTrapWithState + 0x17 0xffffff8008b51420 : 0xffffff8008d1a117 mach_kernel : _panic_trap_to_debugger + 0x227 0xffffff8008b51470 : 0xffffff80094c1a6c mach_kernel : _panic + 0x54 0xffffff8008b514e0 : 0xffffff8008e469aa mach_kernel : _sync_iss_to_iks + 0x2aa 0xffffff8008b51660 : 0xffffff8008e466a8 mach_kernel : _kernel_trap + 0x598 0xffffff8008b516b0 : 0xffffff8008cc0a40 mach_kernel : _return_from_trap + 0xe0 0xffffff8008b516d0 : 0xffffff8008e28b94 mach_kernel : _phys_attribute_clear + 0x134 0xffffff922cfe3030 : 0xffffff8008ddf377 mach_kernel : _upl_commit_range + 0xf57 0xffffff922cfe3340 : 0xffffff80092b7937 mach_kernel : _ubc_upl_commit_range + 0x77 0xffffff922cfe3380 : 0xffffff8008f69a1f mach_kernel : _cluster_read_ext + 0x28df 0xffffff922cfe3500 : 0xffffff8008f67a8f mach_kernel : _cluster_read_ext + 0x94f 0xffffff922cfe3750 : 0xffffff7f8c4b5f7c : _apfs_nstream_read + 0x1db 0xffffff922cfe3800 : 0xffffff7f8c4b6737 : _apfs_inode_getxattr + 0x1b5 0xffffff922cfe3950 : 0xffffff7f8c4b6512 : _apfs_vnop_getxattr + 0xae 0xffffff922cfe3980 : 0xffffff8008fb019a mach_kernel : _VNOP_GETXATTR + 0x5a 0xffffff922cfe39f0 : 0xffffff7f8b5874d7 : _compression_decode_buffer + 0xb81 0xffffff922cfe3a50 : 0xffffff7f8b5877ff : _compression_decode_buffer + 0xea9 0xffffff922cfe3b20 : 0xffffff7f8b58716f : _compression_decode_buffer + 0x819 0xffffff922cfe3bb0 : 0xffffff8008fc4a78 mach_kernel : _decmpfs_pagein_compressed + 0xd18 0xffffff922cfe3c00 : 0xffffff8008fc4e92 mach_kernel : _decmpfs_read_compressed + 0x3b2 0xffffff922cfe3d00 : 0xffffff7f8c4be8da : _apfs_vnop_read + 0x2cf 0xffffff922cfe3d80 : 0xffffff8008f9dfa3 mach_kernel : _utf8_normalizestr + 0x573 0xffffff922cfe3e30 : 0xffffff80092a0ce2 mach_kernel : _preparefileread + 0x282 0xffffff922cfe3ee0 : 0xffffff80092a0e6e mach_kernel : _pread_nocancel + 0x8e 0xffffff922cfe3f40 : 0xffffff8009384be7 mach_kernel : _unix_syscall64 + 0x287 0xffffff922cfe3fa0 : 0xffffff8008cc1206 mach_kernel : _hndl_unix_scall64 + 0x16 Kernel Extensions in backtrace:[449653CC-9494-3AB1-B621-D4BBB695CC10]@0xffffff7f8c47f000->0xffffff7f8c5bafff dependency:[1984287F-ABE7-3770-9FD9-61565B55E332]@0xffffff7f89d46000 dependency:[C2105304-AC59-36D5-8B54-FFD784D63A8B]@0xffffff7f89c9e000 dependency:[CB3CB8CA-881A-37F3-A96B-8063CAF0476D]@0xffffff7f89a80000[D6A33859-09C3-3849-A440-0BDB06F50D43]@0xffffff7f8b580000->0xffffff7f8b58cfff BSD process name corresponding to current thread: firefox Boot args: keepsyms=1 debug=0x100 swd_panic=1 chunklist-security-epoch=0 -chunklist-no-rev2-dev Mac OS version: 19H2 Kernel version: Darwin Kernel Version 19.6.0: Mon Aug 31 22:12:52 PDT 2020; root:xnu-6153.141.2~1/RELEASE_X86_64 Kernel UUID: (HIDDEN) Kernel slide: 0x0000000008a00000 Kernel text base: 0xffffff8008c00000 __HIB text base: 0xffffff8008b00000 System model name: iMac14,2 (Mac-HIDDEN) System shutdown begun: NO Panic diags file available: YES (0x0) System uptime in nanoseconds: 27681924549616 

The time the process corresponding to the thread was Firefox, but it's a different one each time, so I don't think it's because of Firefox.

Any help will be VERY much appreciated

submitted by /u/Almarma
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