LP2 causing kernel_task cpu% to go nuts

sune
Posts: 9
Joined: Fri Jan 06, 2017 11:32 pm

LP2 causing kernel_task cpu% to go nuts

Postby sune » Mon May 01, 2017 4:43 am

Hi
MacbookPro8,2
OS 10.12.4
LP2 with AUD Firewire Apollo8 as audio device (and using UAD plugins).
Something in this setup causes kernel_task to use 500+ % of cpu and slows the system down to VERY slow.
Quitting LP2 gets things back to normal.

Have been using exact same setup with the UAD, but using Dante as audio device, and that has been stabil and fine for months, which suggest something goes wrong when UAD Apollo is the audio device.

Any suggestions?
Thanks
Sune


Below is the diagnostics report from when this had occurred:

Date/Time: 2017-05-01 08:23:28.888239 +0800
OS Version: Mac OS X 10.12.4 (Build 16E195)
Architecture: x86_64
Report Version: 19

Command: LiveProfessor 2
Path: /Applications/LiveProfessor 2.app/Contents/MacOS/LiveProfessor 2
Version: 1.0.0 (1.0.0)
Parent: launchd [1]
PID: 621

Event: cpu usage
CPU: 90s cpu time over 160 seconds (56% cpu average), exceeding limit of 50% cpu over 180 seconds
Duration: 160.19s
Steps: 158

Hardware model: MacBookPro8,2
Active cpus: 8

Fan speed: 6204 rpm


Powerstats for: LiveProfessor 2 [621]
UUID: 5A9330CA-4BB5-39E4-AC89-761B3A1FA8CC
Start time: 2017-05-01 08:23:29 +0800
End time: 2017-05-01 08:26:09 +0800
Microstackshots: 158 samples (100%)
Primary state: 87 samples Non-Frontmost App, User mode, Effective Thread QoS Unspecified, Requested Thread QoS Unspecified, Override Thread QoS Unspecified
User Activity: 0 samples Idle, 158 samples Active
Power Source: 0 samples on Battery, 158 samples on AC
150 ??? (libsystem_pthread.dylib + 12545) [0x7fffdb88a101]
150 ??? (libsystem_pthread.dylib + 14587) [0x7fffdb88a8fb]
150 ??? (libsystem_pthread.dylib + 14767) [0x7fffdb88a9af]
150 ??? (CoreAudio + 237475) [0x7fffc5630fa3]
150 ??? (CoreAudio + 238180) [0x7fffc5631264]
110 ??? (CoreAudio + 243918) [0x7fffc56328ce]
110 ??? (LiveProfessor 2 + 1813583) [0x102cf8c4f]
98 ??? (LiveProfessor 2 + 1813910) [0x102cf8d96]
98 ??? (LiveProfessor 2 + 1792371) [0x102cf3973]
98 ??? (LiveProfessor 2 + 106052) [0x102b57e44]
98 ??? (LiveProfessor 2 + 2234975) [0x102d5fa5f]
98 ??? (LiveProfessor 2 + 118746) [0x102b5afda]
98 ??? (LiveProfessor 2 + 119348) [0x102b5b234]
96 ??? (LiveProfessor 2 + 111714) [0x102b59462]
91 ??? (LiveProfessor 2 + 66936) [0x102b4e578]
91 ??? (LiveProfessor 2 + 374735) [0x102b997cf]
91 ??? (LiveProfessor 2 + 2143000) [0x102d49318]
91 AudioUnitRender + 218 (AudioToolbox) [0x7fffc49e42c7]
67 ??? (<1775B027-8076-CA24-407D-201B88662506> + 215376) [0x10b60c950]
67 ??? (<1775B027-8076-CA24-407D-201B88662506> + 186332) [0x10b6057dc]
67 ??? (<1775B027-8076-CA24-407D-201B88662506> + 167395) [0x10b600de3]
66 ??? (<1775B027-8076-CA24-407D-201B88662506> + 155063) [0x10b5fddb7]
66 ??? (<1775B027-8076-CA24-407D-201B88662506> + 201035) [0x10b60914b]
66 ??? (<1775B027-8076-CA24-407D-201B88662506> + 156359) [0x10b5fe2c7]
66 ??? (<1775B027-8076-CA24-407D-201B88662506> + 223238) [0x10b60e806]
36 ??? (<1775B027-8076-CA24-407D-201B88662506> + 232555) [0x10b610c6b]
8 ??? (<1775B027-8076-CA24-407D-201B88662506> + 205311) [0x10b60a1ff]
2 <Frontmost App>
6 ??? (<1775B027-8076-CA24-407D-201B88662506> + 205307) [0x10b60a1fb]
2 <Frontmost App>
3 ??? (<1775B027-8076-CA24-407D-201B88662506> + 205323) [0x10b60a20b]
1 <Frontmost App>
2 ??? (<1775B027-8076-CA24-407D-201B88662506> + 207972) [0x10b60ac64]
2 ??? (<1775B027-8076-CA24-407D-201B88662506> + 208855) [0x10b60afd7]
2 <Frontmost App>
1 ??? (<1775B027-8076-CA24-407D-201B88662506> + 207821) [0x10b60abcd]
1 ??? (<1775B027-8076-CA24-407D-201B88662506> + 205299) [0x10b60a1f3]
1 ??? (<1775B027-8076-CA24-407D-201B88662506> + 205354) [0x10b60a22a]
1 ??? (<1775B027-8076-CA24-407D-201B88662506> + 205315) [0x10b60a203]
1 ??? (<1775B027-8076-CA24-407D-201B88662506> + 206775) [0x10b60a7b7]
1 ??? (<1775B027-8076-CA24-407D-201B88662506> + 207705) [0x10b60ab59]
1 ??? (<1775B027-8076-CA24-407D-201B88662506> + 207689) [0x10b60ab49]
1 ??? (<1775B027-8076-CA24-407D-201B88662506> + 206894) [0x10b60a82e]
1 ??? (<1775B027-8076-CA24-407D-201B88662506> + 206849) [0x10b60a801]
1 ??? (<1775B027-8076-CA24-407D-201B88662506> + 205889) [0x10b60a441]
1 ??? (<1775B027-8076-CA24-407D-201B88662506> + 208842) [0x10b60afca]
1 <Frontmost App>
1 ??? (<1775B027-8076-CA24-407D-201B88662506> + 206143) [0x10b60a53f]
1 <Frontmost App>
1 ??? (<1775B027-8076-CA24-407D-201B88662506> + 206788) [0x10b60a7c4]
1 <Frontmost App>
1 ??? (<1775B027-8076-CA24-407D-201B88662506> + 205412) [0x10b60a264]
1 <Frontmost App>
1 ??? (<1775B027-8076-CA24-407D-201B88662506> + 206874) [0x10b60a81a]
1 <Frontmost App>
10 ??? (<1775B027-8076-CA24-407D-201B88662506> + 233225) [0x10b610f09]
2 ??? (<1775B027-8076-CA24-407D-201B88662506> + 220391) [0x10b60dce7]
2 <Frontmost App>
1 ??? (<1775B027-8076-CA24-407D-201B88662506> + 220498) [0x10b60dd52]
1 ??? (<1775B027-8076-CA24-407D-201B88662506> + 220239) [0x10b60dc4f]
1 ??? (<1775B027-8076-CA24-407D-201B88662506> + 220419) [0x10b60dd03]
1 ??? (<1775B027-8076-CA24-407D-201B88662506> + 220487) [0x10b60dd47]
1 ??? (<1775B027-8076-CA24-407D-201B88662506> + 220259) [0x10b60dc63]
1 ??? (<1775B027-8076-CA24-407D-201B88662506> + 220479) [0x10b60dd3f]
1 <Frontmost App>
1 ??? (<1775B027-8076-CA24-407D-201B88662506> + 220483) [0x10b60dd43]
1 <Frontmost App>
1 ??? (<1775B027-8076-CA24-407D-201B88662506> + 220415) [0x10b60dcff]
1 <Frontmost App>
9 ??? (<1775B027-8076-CA24-407D-201B88662506> + 231355) [0x10b6107bb]
2 ??? (<1775B027-8076-CA24-407D-201B88662506> + 220259) [0x10b60dc63]
1 ??? (<1775B027-8076-CA24-407D-201B88662506> + 220479) [0x10b60dd3f]
1 ??? (<1775B027-8076-CA24-407D-201B88662506> + 220447) [0x10b60dd1f]
1 ??? (<1775B027-8076-CA24-407D-201B88662506> + 220196) [0x10b60dc24]
1 ??? (<1775B027-8076-CA24-407D-201B88662506> + 220431) [0x10b60dd0f]
1 ??? (<1775B027-8076-CA24-407D-201B88662506> + 220372) [0x10b60dcd4]
1 ??? (<1775B027-8076-CA24-407D-201B88662506> + 220407) [0x10b60dcf7]
1 ??? (<1775B027-8076-CA24-407D-201B88662506> + 220296) [0x10b60dc88]
1 <Frontmost App>
2 ??? (<1775B027-8076-CA24-407D-201B88662506> + 229177) [0x10b60ff39]
2 ??? (<1775B027-8076-CA24-407D-201B88662506> + 231836) [0x10b61099c]
1 <Frontmost App>
2 ??? (<1775B027-8076-CA24-407D-201B88662506> + 231606) [0x10b6108b6]
1 ??? (<1775B027-8076-CA24-407D-201B88662506> + 229432) [0x10b610038]
1 ??? (<1775B027-8076-CA24-407D-201B88662506> + 231866) [0x10b6109ba]
1 ??? (<1775B027-8076-CA24-407D-201B88662506> + 231846) [0x10b6109a6]
1 <Frontmost App>
1 ??? (<1775B027-8076-CA24-407D-201B88662506> + 229373) [0x10b60fffd]
1 <Frontmost App>
1 ??? (<1775B027-8076-CA24-407D-201B88662506> + 231150) [0x10b6106ee]
1 <Frontmost App>
1 ??? (<1775B027-8076-CA24-407D-201B88662506> + 160474) [0x10b5ff2da]
18 ??? (<3720A27F-6D0F-3FA8-8DB2-47DA9AB16545> + 2478007) [0x110068fb7]
18 ??? (<3720A27F-6D0F-3FA8-8DB2-47DA9AB16545> + 2616885) [0x11008ae35]
18 ??? (<3720A27F-6D0F-3FA8-8DB2-47DA9AB16545> + 2552114) [0x11007b132]
18 ??? (<3720A27F-6D0F-3FA8-8DB2-47DA9AB16545> + 2607304) [0x1100888c8]
18 ??? (<3720A27F-6D0F-3FA8-8DB2-47DA9AB16545> + 4196038) [0x11020c6c6]
18 ??? (<3720A27F-6D0F-3FA8-8DB2-47DA9AB16545> + 4197322) [0x11020cbca]
18 ??? (<3720A27F-6D0F-3FA8-8DB2-47DA9AB16545> + 627003) [0x10fea513b]
5 ??? (<3720A27F-6D0F-3FA8-8DB2-47DA9AB16545> + 2459501) [0x11006476d]
2 ??? (<3720A27F-6D0F-3FA8-8DB2-47DA9AB16545> + 2470548) [0x110067294]
2 ??? (<3720A27F-6D0F-3FA8-8DB2-47DA9AB16545> + 2470618) [0x1100672da]
2 <Frontmost App>
1 ??? (<3720A27F-6D0F-3FA8-8DB2-47DA9AB16545> + 2470660) [0x110067304]
1 <Frontmost App>
2 ??? (<3720A27F-6D0F-3FA8-8DB2-47DA9AB16545> + 2783850) [0x1100b3a6a]
2 ??? (<3720A27F-6D0F-3FA8-8DB2-47DA9AB16545> + 2354734) [0x11004ae2e]
2 ??? (<3720A27F-6D0F-3FA8-8DB2-47DA9AB16545> + 2381848) [0x110051818]
1 ??? (<3720A27F-6D0F-3FA8-8DB2-47DA9AB16545> + 4468504) [0x11024ef18]
1 ??? (<3720A27F-6D0F-3FA8-8DB2-47DA9AB16545> + 4468432) [0x11024eed0]
1 <Frontmost App>
1 ??? (<3720A27F-6D0F-3FA8-8DB2-47DA9AB16545> + 2309110) [0x11003fbf6]
1 ??? (<3720A27F-6D0F-3FA8-8DB2-47DA9AB16545> + 2314268) [0x11004101c]
1 ??? (<3720A27F-6D0F-3FA8-8DB2-47DA9AB16545> + 2926706) [0x1100d6872]
1 ??? (<3720A27F-6D0F-3FA8-8DB2-47DA9AB16545> + 2326130) [0x110043e72]
1 ??? (<3720A27F-6D0F-3FA8-8DB2-47DA9AB16545> + 3018294) [0x1100ece36]
1 ??? (<3720A27F-6D0F-3FA8-8DB2-47DA9AB16545> + 2309332) [0x11003fcd4]
1 ??? (<3720A27F-6D0F-3FA8-8DB2-47DA9AB16545> + 2326024) [0x110043e08]
1 ??? (<3720A27F-6D0F-3FA8-8DB2-47DA9AB16545> + 2269800) [0x110036268]
1 <Frontmost App>
1 ??? (<3720A27F-6D0F-3FA8-8DB2-47DA9AB16545> + 2459425) [0x110064721]
1 <Frontmost App>
1 ??? (<3720A27F-6D0F-3FA8-8DB2-47DA9AB16545> + 2987887) [0x1100e576f]
1 <Frontmost App>
4 ??? (<4D10D979-7763-3F2E-9674-738258C1C501> + 92588) [0x10602b9ac]
4 ??? (<4D10D979-7763-3F2E-9674-738258C1C501> + 125254) [0x106033946]
4 ??? (<4D10D979-7763-3F2E-9674-738258C1C501> + 108980) [0x10602f9b4]
4 ??? (<4D10D979-7763-3F2E-9674-738258C1C501> + 115898) [0x1060314ba]
4 ??? (<4D10D979-7763-3F2E-9674-738258C1C501> + 81458) [0x106028e32]
4 ??? (<B3729E7F-AE0A-3A53-A2A5-EDA38A9DEA41> + 189950) [0x1063145fe]
4 ??? (<D6B6BE25-8313-353C-B493-44570EABC121> + 31589) [0x1060a4b65]
4 ??? (<D6B6BE25-8313-353C-B493-44570EABC121> + 30187) [0x1060a45eb]
4 ??? (<D6B6BE25-8313-353C-B493-44570EABC121> + 31029) [0x1060a4935]
4 ??? (<8A2B5636-5072-362F-93AE-DB62124EF4A9> + 83446) [0x10612a5f6]
4 ??? (<8A2B5636-5072-362F-93AE-DB62124EF4A9> + 52442) [0x106122cda]
4 ??? (<8A2B5636-5072-362F-93AE-DB62124EF4A9> + 119616) [0x106133340]
4 ??? (<8A2B5636-5072-362F-93AE-DB62124EF4A9> + 119749) [0x1061333c5]
4 ??? (IOKit + 26169) [0x7fffc7a45639]
4 ??? (IOKit + 25714) [0x7fffc7a45472]
4 ??? (IOKit + 527646) [0x7fffc7abfd1e]
4 ??? (libsystem_kernel.dylib + 74570) [0x7fffdb79834a]
3 <Frontmost App, Kernel mode>
1 <Kernel mode>
1 CallComponent + 148 (CarbonCore) [0x7fffc69ad710]
1 ??? (<8FE4A474-F027-30E2-91C5-4F06E0C76BAC> + 92604) [0x10f0a09bc]
1 ??? (<8FE4A474-F027-30E2-91C5-4F06E0C76BAC> + 125270) [0x10f0a8956]
1 ??? (<8FE4A474-F027-30E2-91C5-4F06E0C76BAC> + 108996) [0x10f0a49c4]
1 ??? (<8FE4A474-F027-30E2-91C5-4F06E0C76BAC> + 115914) [0x10f0a64ca]
1 ??? (<8FE4A474-F027-30E2-91C5-4F06E0C76BAC> + 81474) [0x10f09de42]
1 ??? (<CCCE41AC-6E26-3E13-B6F3-89C5805BFB46> + 193822) [0x10f14151e]
1 ??? (<D6B6BE25-8313-353C-B493-44570EABC121> + 31589) [0x1060a4b65]
1 ??? (<D6B6BE25-8313-353C-B493-44570EABC121> + 30187) [0x1060a45eb]
1 ??? (<D6B6BE25-8313-353C-B493-44570EABC121> + 31446) [0x1060a4ad6]
1 ??? (<D6B6BE25-8313-353C-B493-44570EABC121> + 76288) [0x1060afa00]
1 <Frontmost App>
2 ??? (LiveProfessor 2 + 67172) [0x102b4e664]
2 ??? (LiveProfessor 2 + 8130) [0x102b3ffc2]
1 ??? (LiveProfessor 2 + 66610) [0x102b4e432]
1 ??? (LiveProfessor 2 + 72961) [0x102b4fd01]
1 ??? (LiveProfessor 2 + 73464) [0x102b4fef8]
1 ??? (LiveProfessor 2 + 1755692) [0x102ceaa2c]
1 ??? (LiveProfessor 2 + 1771725) [0x102cee8cd]
1 ??? (LiveProfessor 2 + 124874) [0x102b5c7ca]
1 ??? (LiveProfessor 2 + 120937) [0x102b5b869]
1 ??? (LiveProfessor 2 + 1755303) [0x102cea8a7]
1 ??? (libvDSP.dylib + 774586) [0x7fffc31771ba]
1 ??? (LiveProfessor 2 + 66541) [0x102b4e3ed]
1 ??? (LiveProfessor 2 + 1773492) [0x102ceefb4]
1 ??? (LiveProfessor 2 + 2224179) [0x102d5d033]
1 calloc + 30 (libsystem_malloc.dylib) [0x7fffdb7f5d7f]
1 malloc_zone_calloc + 87 (libsystem_malloc.dylib) [0x7fffdb7f543e]
1 szone_malloc_should_clear + 1577 (libsystem_malloc.dylib) [0x7fffdb7f390b]
2 ??? (LiveProfessor 2 + 111451) [0x102b5935b]
2 ??? (LiveProfessor 2 + 1755117) [0x102cea7ed]
2 _platform_bzero$VARIANT$Base + 59 (libsystem_platform.dylib) [0x7fffdb884cab]
2 <Frontmost App>
7 ??? (LiveProfessor 2 + 1813792) [0x102cf8d20]
2 <Frontmost App>
3 ??? (LiveProfessor 2 + 1814003) [0x102cf8df3]
1 ??? (LiveProfessor 2 + 1813794) [0x102cf8d22]
1 <Frontmost App>
1 ??? (LiveProfessor 2 + 1813626) [0x102cf8c7a]
1 <Frontmost App>
16 ??? (CoreAudio + 239824) [0x7fffc56318d0]
16 ??? (CoreAudio + 252070) [0x7fffc56348a6]
15 ??? (CoreAudio + 252213) [0x7fffc5634935]
14 ??? (libsystem_kernel.dylib + 74570) [0x7fffdb79834a]
8 <Frontmost App, Kernel mode>
6 <Kernel mode>
1 ??? (libsystem_kernel.dylib + 71575) [0x7fffdb797797]
1 ??? (CoreAudio + 252217) [0x7fffc5634939]
8 ??? (CoreAudio + 241462) [0x7fffc5631f36]
7 ??? (CoreAudio + 252528) [0x7fffc5634a70]
3 _platform_bzero$VARIANT$Base + 51 (libsystem_platform.dylib) [0x7fffdb884ca3]
3 <Frontmost App>
2 _platform_bzero$VARIANT$Base + 48 (libsystem_platform.dylib) [0x7fffdb884ca0]
2 _platform_bzero$VARIANT$Base + 55 (libsystem_platform.dylib) [0x7fffdb884ca7]
1 ??? (CoreAudio + 252518) [0x7fffc5634a66]
6 ??? (CoreAudio + 240679) [0x7fffc5631c27]
6 ??? (CoreAudio + 251971) [0x7fffc5634843]
3 <Frontmost App, Kernel mode>
1 <Frontmost App>
4 ??? (CoreAudio + 240340) [0x7fffc5631ad4]
2 ??? (CoreAudio + 8339) [0x7fffc55f9093]
1 ??? (CoreAudio + 7990) [0x7fffc55f8f36]
1 ??? (libsystem_pthread.dylib + 5146) [0x7fffdb88841a]
1 ??? (CoreAudio + 251930) [0x7fffc563481a]
1 ??? (CoreAudio + 241121) [0x7fffc5631de1]
1 ??? (CoreAudio + 241036) [0x7fffc5631d8c]
1 ??? (libsystem_kernel.dylib + 91570) [0x7fffdb79c5b2]
1 ??? (CoreAudio + 241009) [0x7fffc5631d71]
1 <Frontmost App>
1 ??? (CoreAudio + 252481) [0x7fffc5634a41]
1 <Frontmost App>
8 ??? (libdyld.dylib + 21045) [0x7fffdb671235]
8 ??? (LiveProfessor 2 + 2479253) [0x102d9b495]
8 ??? (LiveProfessor 2 + 2479329) [0x102d9b4e1]
8 ??? (LiveProfessor 2 + 2479450) [0x102d9b55a]
8 ??? (AppKit + 243627) [0x7fffc35ba7ab]
8 ??? (AppKit + 8136798) [0x7fffc3d4185e]
8 ??? (AppKit + 290340) [0x7fffc35c5e24]
8 ??? (HIToolbox + 199462) [0x7fffc502ab26]
5 ??? (HIToolbox + 199673) [0x7fffc502abf9]
5 ??? (HIToolbox + 200380) [0x7fffc502aebc]
5 ??? (CoreFoundation + 541988) [0x7fffc5aca524]
5 ??? (CoreFoundation + 543465) [0x7fffc5acaae9]
5 ??? (CoreFoundation + 671015) [0x7fffc5ae9d27]
5 ??? (CoreFoundation + 671159) [0x7fffc5ae9db7]
5 ??? (AppKit + 4688793) [0x7fffc39f7b99]
5 CA::Transaction::commit() + 475 (QuartzCore) [0x7fffcb9ad8a1]
5 CA::Context::commit_transaction(CA::Transaction*) + 160 (QuartzCore) [0x7fffcbab88f0]
5 CA::Transaction::run_commit_handlers(CATransactionPhase) + 46 (QuartzCore) [0x7fffcb9aedc6]
5 ??? (AppKit + 1660809) [0x7fffc3714789]
5 ??? (AppKit + 9395492) [0x7fffc3e74d24]
5 ??? (AppKit + 1662123) [0x7fffc3714cab]
5 ??? (AppKit + 1663898) [0x7fffc371539a]
5 ??? (AppKit + 1682088) [0x7fffc3719aa8]
5 ??? (AppKit + 1694369) [0x7fffc371caa1]
5 ??? (AppKit + 1695331) [0x7fffc371ce63]
5 ??? (AppKit + 1700713) [0x7fffc371e369]
5 ??? (LiveProfessor 2 + 3273586) [0x102e5d372]
5 ??? (LiveProfessor 2 + 3278335) [0x102e5e5ff]
5 ??? (LiveProfessor 2 + 3278575) [0x102e5e6ef]
5 ??? (LiveProfessor 2 + 3093409) [0x102e313a1]
5 ??? (LiveProfessor 2 + 2783036) [0x102de573c]
5 ??? (LiveProfessor 2 + 2781920) [0x102de52e0]
5 ??? (LiveProfessor 2 + 2783036) [0x102de573c]
5 ??? (LiveProfessor 2 + 2781920) [0x102de52e0]
5 ??? (LiveProfessor 2 + 2783036) [0x102de573c]
5 ??? (LiveProfessor 2 + 2781920) [0x102de52e0]
5 ??? (LiveProfessor 2 + 2783036) [0x102de573c]
5 ??? (LiveProfessor 2 + 2781920) [0x102de52e0]
5 ??? (LiveProfessor 2 + 2783036) [0x102de573c]
5 ??? (LiveProfessor 2 + 2781920) [0x102de52e0]
5 ??? (LiveProfessor 2 + 2783036) [0x102de573c]
5 ??? (LiveProfessor 2 + 2781920) [0x102de52e0]
5 ??? (LiveProfessor 2 + 2783036) [0x102de573c]
5 ??? (LiveProfessor 2 + 2781920) [0x102de52e0]
5 ??? (LiveProfessor 2 + 2783036) [0x102de573c]
5 ??? (LiveProfessor 2 + 2781920) [0x102de52e0]
5 ??? (LiveProfessor 2 + 2783036) [0x102de573c]
5 ??? (LiveProfessor 2 + 2781920) [0x102de52e0]
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5 ??? (LiveProfessor 2 + 2781920) [0x102de52e0]
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2 ??? (LiveProfessor 2 + 2783036) [0x102de573c]
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2 ??? (LiveProfessor 2 + 2957440) [0x102e10080]
2 ??? (LiveProfessor 2 + 2527538) [0x102da7132]
2 ??? (LiveProfessor 2 + 2527828) [0x102da7254]
2 ??? (LiveProfessor 2 + 2526340) [0x102da6c84]
2 ??? (LiveProfessor 2 + 2593131) [0x102db716b]
2 ??? (LiveProfessor 2 + 2749264) [0x102ddd350]
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2 TAttributes::ApplyFont(__CFDictionary const*, __CTFont const*, void const**) + 427 (CoreText) [0x7fffc7103b15]
2 TAttributes::CopyOfFontWithLigatureSetting(__CTFont const*, LigatureSetting) + 1090 (CoreText) [0x7fffc71042d6]
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2 TFont::SetExtras(__CTFontDescriptor const*) + 56 (CoreText) [0x7fffc70584b4]
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1 ??? (LiveProfessor 2 + 2606995) [0x102dba793]
1 CGContextClipToRects + 1 (CoreGraphics) [0x7fffc6198384]
1 <Frontmost App, Kernel mode, Effective Thread QoS User Interactive, Requested Thread QoS User Interactive>
2 ??? (LiveProfessor 2 + 2782561) [0x102de5561]
2 ??? (LiveProfessor 2 + 3128324) [0x102e39c04]
2 ??? (LiveProfessor 2 + 3128236) [0x102e39bac]
2 ??? (LiveProfessor 2 + 2606983) [0x102dba787]
2 ??? (LiveProfessor 2 + 2638826) [0x102dc23ea]
2 <Frontmost App, Kernel mode, Effective Thread QoS User Interactive, Requested Thread QoS User Interactive>
3 ??? (HIToolbox + 199921) [0x7fffc502acf1]
3 ??? (HIToolbox + 200380) [0x7fffc502aebc]
3 ??? (CoreFoundation + 541988) [0x7fffc5aca524]
2 ??? (CoreFoundation + 543465) [0x7fffc5acaae9]
2 ??? (CoreFoundation + 671015) [0x7fffc5ae9d27]
2 ??? (CoreFoundation + 671159) [0x7fffc5ae9db7]
2 ??? (AppKit + 4688793) [0x7fffc39f7b99]
2 CA::Transaction::commit() + 475 (QuartzCore) [0x7fffcb9ad8a1]
2 CA::Context::commit_transaction(CA::Transaction*) + 160 (QuartzCore) [0x7fffcbab88f0]
2 CA::Transaction::run_commit_handlers(CATransactionPhase) + 46 (QuartzCore) [0x7fffcb9aedc6]
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2 ??? (LiveProfessor 2 + 3278335) [0x102e5e5ff]
2 ??? (LiveProfessor 2 + 3278575) [0x102e5e6ef]
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2 ??? (LiveProfessor 2 + 2783036) [0x102de573c]
2 ??? (LiveProfessor 2 + 2781920) [0x102de52e0]
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2 ??? (LiveProfessor 2 + 2781920) [0x102de52e0]
2 ??? (LiveProfessor 2 + 2783036) [0x102de573c]
2 ??? (LiveProfessor 2 + 2781920) [0x102de52e0]
2 ??? (LiveProfessor 2 + 2783036) [0x102de573c]
2 ??? (LiveProfessor 2 + 2781920) [0x102de52e0]
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2 ??? (LiveProfessor 2 + 2781920) [0x102de52e0]
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2 ??? (LiveProfessor 2 + 2781920) [0x102de52e0]
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2 ??? (LiveProfessor 2 + 2781920) [0x102de52e0]
2 ??? (LiveProfessor 2 + 2783036) [0x102de573c]
2 ??? (LiveProfessor 2 + 2781920) [0x102de52e0]
1 ??? (LiveProfessor 2 + 2783036) [0x102de573c]
1 ??? (LiveProfessor 2 + 2781920) [0x102de52e0]
1 ??? (LiveProfessor 2 + 2782595) [0x102de5583]
1 ??? (LiveProfessor 2 + 2957440) [0x102e10080]
1 ??? (LiveProfessor 2 + 2527574) [0x102da7156]
1 ??? (LiveProfessor 2 + 2525207) [0x102da6817]
1 ??? (LiveProfessor 2 + 2614236) [0x102dbc3dc]
1 CGContextShowGlyphs + 467 (CoreGraphics) [0x7fffc623e63e]
1 draw_glyphs + 1114 (CoreGraphics) [0x7fffc623eb16]
1 ??? (AppKit + 2051503) [0x7fffc3773daf]
1 ??? (AppKit + 2035153) [0x7fffc376fdd1]
1 ??? (AppKit + 2036333) [0x7fffc377026d]
1 ??? (AppKit + 1497996) [0x7fffc36ecb8c]
1 SLSGetWindowSize + 35 (SkyLight) [0x7fffd7a08341]
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1 CGSCurrentProcessOwnsConnectionID + 1 (SkyLight) [0x7fffd7a78d42]
1 <Kernel mode, Effective Thread QoS User Interactive, Requested Thread QoS User Interactive>
1 ??? (LiveProfessor 2 + 2782981) [0x102de5705]
1 ??? (LiveProfessor 2 + 2606957) [0x102dba76d]
1 ??? (LiveProfessor 2 + 2608857) [0x102dbaed9]
1 CGContextGetClipBoundingBox + 43 (CoreGraphics) [0x7fffc60b30e1]
1 get_device_clip_bounding_box + 41 (CoreGraphics) [0x7fffc60b302b]
1 CGContextDelegateGetBounds + 28 (CoreGraphics) [0x7fffc5fdbe35]
1 ??? (AppKit + 5105465) [0x7fffc3a5d739]
1 ??? (AppKit + 1497996) [0x7fffc36ecb8c]
1 SLSGetWindowSize + 35 (SkyLight) [0x7fffd7a08341]
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1 window_update_rights_cache_if_not_owner + 17 (SkyLight) [0x7fffd79a6cc3]
1 (anonymous namespace)::Registry::is_known(unsigned int) const + 4 (SkyLight) [0x7fffd79580d2]
1 <Frontmost App, Kernel mode, Effective Thread QoS User Interactive, Requested Thread QoS User Interactive>
1 ??? (CoreFoundation + 544673) [0x7fffc5acafa1]
1 ??? (CoreFoundation + 579018) [0x7fffc5ad35ca]
1 ??? (CoreFoundation + 580509) [0x7fffc5ad3b9d]
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User avatar
nikolai
Posts: 1214
Joined: Fri Sep 04, 2009 1:05 pm
Location: Norway
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Re: LP2 causing kernel_task cpu% to go nuts

Postby nikolai » Wed May 03, 2017 7:32 am

Hei Sune
Yes it must be something specific for the Apollo. I think we have one that I could try to recreate this with.
One thing, though, we just discovered an issue in the latest version, if you go to the audio settings and change buffer size , or click reset device, not all processing cores are re-started. If you load a project (or click new), or restart the program it works like it should, don't know if this is related.
sune
Posts: 9
Joined: Fri Jan 06, 2017 11:32 pm

Re: LP2 causing kernel_task cpu% to go nuts

Postby sune » Wed May 03, 2017 9:19 pm

Update to previous post:

I found this blog that described a similar problem with the kernel_task process, and I followed the instructions to interrupt a certain kernel_task process that takes priority of a large portion of the cpu with the purpose to override other high cpu-consuming applications until the cpu temperature drops. So it's a temperature control thing, but it's very invasive and slows the system right down.
It's a little risky to mess with this, but I've been keeping an eye on the systems temperature (using "Macs Fan Control" app), and it's fine.
I guess theres some bad communication between LP2 and the UAD driver, but I don't know much about those things.
Anyways, it did the trick and everything has been running smoothly.
Here is the fix: http://www.rdoxenham.com/?p=259

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