【macOS Sequoia】M2 MacBook Airで遭遇した不具合・問題と対策

panic(cpu 1 caller 0xfffffe001e36d0d0): DCP PANIC – ASSERT!AppleDCPDPTXPowerController.cpp:564 No device added after powering on the rails. HPD=0 – dcpav(27)
ASSERT!AppleDCPDPTXPowerController.cpp:564 No device added after powering on the rails. HPD=0
RTKit: RTKit-2758.40.19.release – Client: AppleDCP-811.40.8~1973-ipad14dcp.RELEASE
!UUID: a1000010-2140-1ed5-a178-80d201401ed5
ASLR slide: 0x00000000002d8000

panic(cpu 4 caller 0xfffffe0027a461d0): DCP PANIC – ASSERT!AppleDCPDPTXPowerController.cpp:561 No device added after powering on the rails. HPD=0 – dcpav(27)
ASSERT!AppleDCPDPTXPowerController.cpp:561 No device added after powering on the rails. HPD=0
RTKit: RTKit-2758.1.1.release – Client: AppleDCP-811.1.1~754-ipad14dcp.RELEASE
!UUID: a1000010-2140-1ed5-a178-80d201401ed5
ASLR slide: 0x00000000001bc000

2度目の発生です。M2搭載のMacで報告が上がっている現象のようです。DCPはDisplay Co-Processorの略語らしい。ディスプレイ周りの不具合なのかなぁ。

macOS 15.1にアップデートします。

panic(cpu 1 caller 0xfffffe001fa3a1d0): DCP PANIC – ASSERT!AppleDCPDPTXPowerController.cpp:561 No device added after powering on the rails. HPD=0 – dcpav(27)
ASSERT!AppleDCPDPTXPowerController.cpp:561 No device added after powering on the rails. HPD=0
RTKit: RTKit-2758.1.1.release – Client: AppleDCP-811.1.1~754-ipad14dcp.RELEASE

DCP PANICって何？

panic(cpu 0 caller 0xfffffe002c643de0): busy timeout[0], (60s): multiple entries holding the registry busy, IOKit termination queue depth 0: ‘AppleAPFSMediaBSDClient’ (1,1810001), ‘AppleAPFSVolumeBSDClient’ (1,1810001) @IOService.cpp:5811
Debugger message: panic

panic(cpu 0 caller 0xfffffe001300fde0): busy timeout[0], (60s): multiple entries holding the registry busy, IOKit termination queue depth 0: ‘AppleAPFSMediaBSDClient’ (1,1810001), ‘AppleAPFSVolumeBSDClient’ (1,1810001) @IOService.cpp:5811
Debugger message: panic

今回で2度目ですAPFS周りに何か深刻な問題を抱えている気配がありますね・・・

panic(cpu 1 caller 0xfffffe002bf27de0): busy timeout[0], (60s): multiple entries holding the registry busy, IOKit termination queue depth 0: ‘AppleAPFSMediaBSDClient’ (1,1810001), ‘AppleAPFSVolumeBSDClient’ (1,1810001) @IOService.cpp:5811
Debugger message: panic