Kernel panics

[timelessbeing]

2019 16" Macbook Pro
MacOS 11.0.1

Anybody else getting kernel panics every week? Happens under low load just browing the web. It's getting annoying. Never had a Macbook that was this bad.

 

[MacBird]

Can you see the crash log, it normally shows the culprit. I had plenty of Kernel panics after installing Big Sur, which were due to Cylance software. After uninstalling it no problems anymore.

 

[timelessbeing]

Yes I kept the logs, but they are a mess. Where should I look?

I don't run any antivirus SW.

 

[MacBird]

In the second 'paragraph' there should be one or more processes that caused the Kernel panic.

This is what I saw:

Kernel Extensions in backtrace:

com.Cylance.CyOpticsMacOSDriver(1.0)[E2BCF4C8-1F52-3A63-B6B6-823198A9C57E]@0xffffff7fa6381000->0xffffff7fa6387fff

Process name corresponding to current thread: spindump

 

[timelessbeing]

this is the first page of two logs: (after that it just lists loaded extensions)

panic(cpu 6 caller 0xffffff80067efa76): Kernel trap at 0xffffff8006c18cfe, type 14=page fault, registers:
CR0: 0x0000000080010033, CR2: 0x0000000000000000, CR3: 0x000000034938c13c, CR4: 0x00000000003626e0
RAX: 0x0000000000000000, RBX: 0xffffff86bdd0cb80, RCX: 0x0000000000000000, RDX: 0x0000000001000000
RSP: 0xffffffb0f5e23ec0, RBP: 0xffffffb0f5e23f40, RSI: 0xffffff86d27033d0, RDI: 0x0000000000000000
R8:  0x0000000000000000, R9:  0x0000000000000000, R10: 0x0000000000000000, R11: 0x0000000000000000
R12: 0xffffff86d2703300, R13: 0xffffff86d87fcea0, R14: 0x000000000000000d, R15: 0xffffff86d27033d0
RFL: 0x0000000000010246, RIP: 0xffffff8006c18cfe, CS:  0x0000000000000008, SS:  0x0000000000000010
Fault CR2: 0x0000000000000000, Error code: 0x0000000000000000, Fault CPU: 0x6, PL: 0, VF: 0

Backtrace (CPU 6), Frame : Return Address
0xffffffb0f5e238e0 : 0xffffff80066bc66d
0xffffffb0f5e23930 : 0xffffff80067ff073
0xffffffb0f5e23970 : 0xffffff80067ef6aa
0xffffffb0f5e239c0 : 0xffffff8006661a2f
0xffffffb0f5e239e0 : 0xffffff80066bbf0d
0xffffffb0f5e23b00 : 0xffffff80066bc1f8
0xffffffb0f5e23b70 : 0xffffff8006ebee1a
0xffffffb0f5e23be0 : 0xffffff80067efa76
0xffffffb0f5e23d60 : 0xffffff80067ef75d
0xffffffb0f5e23db0 : 0xffffff8006661a2f
0xffffffb0f5e23dd0 : 0xffffff8006c18cfe
0xffffffb0f5e23f40 : 0xffffff8006d69ceb
0xffffffb0f5e23fa0 : 0xffffff80066621f6

Process name corresponding to current thread: plugin-container
Boot args: chunklist-security-epoch=0 -chunklist-no-rev2-dev chunklist-security-epoch=0 -chunklist-no-rev2-dev

Mac OS version:
20B29

Kernel version:
Darwin Kernel Version 20.1.0: Sat Oct 31 00:07:11 PDT 2020; root:xnu-7195.50.7~2/RELEASE_X86_64
Kernel UUID: 84C6DC45-6B02-335F-9439-5D2A9BC385A4
KernelCache slide: 0x0000000006400000
KernelCache base:  0xffffff8006600000
Kernel slide:      0x0000000006410000
Kernel text base:  0xffffff8006610000
__HIB  text base: 0xffffff8006500000
System model name: MacBookPro16,1 (Mac-E1008331FDC96864)
System shutdown begun: NO
Hibernation exit count: 1

System uptime in nanoseconds: 411238530290052
Last Sleep:           absolute           base_tsc          base_nano
  Uptime  : 0x00017604ee84159f
  Sleep   : 0x00016ebc2a57ffc7 0x0005b57edb3be958 0x00016eb3e694e9b0
  Wake    : 0x00016ebc5d869752 0x0005b594e0b2de1a 0x00016ebc3cbdcf1e
last started kext at 356509086564866: >usb.!UHub    1.2 (addr 0xffffff8009449000, size 176128)
last stopped kext at 308635357403028: >usb.!UUserHCI    1 (addr 0xffffff7fa61ef000, size 98304)

panic(cpu 4 caller 0xffffff801f8bffa6): "os_refcnt: underflow (rc=0xffffff86d3fc1314)\n"@/AppleInternal/BuildRoot/Library/Caches/com.apple.xbs/Sources/xnu/xnu-7195.50.7/libkern/os/refcnt.c:46
Backtrace (CPU 4), Frame : Return Address
0xffffffb11650bb40 : 0xffffff801f0bc66d
0xffffffb11650bb90 : 0xffffff801f1ff073
0xffffffb11650bbd0 : 0xffffff801f1ef6aa
0xffffffb11650bc20 : 0xffffff801f061a2f
0xffffffb11650bc40 : 0xffffff801f0bbf0d
0xffffffb11650bd60 : 0xffffff801f0bc1f8
0xffffffb11650bdd0 : 0xffffff801f8bee1a
0xffffffb11650be40 : 0xffffff801f8bffa6
0xffffffb11650be50 : 0xffffff801f61748f
0xffffffb11650beb0 : 0xffffff801f619100
0xffffffb11650bf40 : 0xffffff801f769ceb
0xffffffb11650bfa0 : 0xffffff801f0621f6

Process name corresponding to current thread: plugin-container
Boot args: chunklist-security-epoch=0 -chunklist-no-rev2-dev chunklist-security-epoch=0 -chunklist-no-rev2-dev

Mac OS version:
20B29

Kernel version:
Darwin Kernel Version 20.1.0: Sat Oct 31 00:07:11 PDT 2020; root:xnu-7195.50.7~2/RELEASE_X86_64
Kernel UUID: 84C6DC45-6B02-335F-9439-5D2A9BC385A4
KernelCache slide: 0x000000001ee00000
KernelCache base:  0xffffff801f000000
Kernel slide:      0x000000001ee10000
Kernel text base:  0xffffff801f010000
__HIB  text base: 0xffffff801ef00000
System model name: MacBookPro16,1 (Mac-E1008331FDC96864)
System shutdown begun: NO
Hibernation exit count: 0

System uptime in nanoseconds: 518503114205845
Last Sleep:           absolute           base_tsc          base_nano
  Uptime  : 0x0001d79369efef35
  Sleep   : 0x0001d2cadadbff68 0x0008ecb3a7c657e8 0x0001ccd3a7c6eaf2
  Wake    : 0x0001d2cb0cfe4637 0x0008fc3a62f09d30 0x0001d2caec20a5dc
last started kext at 517358341127170: >usb.cdc.acm    5.0.0 (addr 0xffffff7fbe75d000, size 8192)
last stopped kext at 517706632626049: >!UMergeNub    900.4.2 (addr 0xffffff8021e7f000, size 4096)

 

[MacBird]

Just did a quick search and it seems to be related to Power Nap being enabled. It's a problem people had in Catalina.

Kernel Panics in New MacBook Pro 16"âââSolution is Here

This article is based on macOS Catalina

canartuc.medium.com

 

[timelessbeing]

all three times I was using it standalone. No external monitor. And it wasn't sleeping. I was using it.

 

[timelessbeing]

For completeness, these are the symptoms:

• The display will momentarily freeze
• cooling fans suddenly kick on at full speed for a second
• black screen saying "you need to restart the computer"
• computer reboots itself and presents kernel panic report.

 

[Brian33]

In both of your crash logs, the process name that was running at the time of the kernel panic was ‘plugin-container’. I believe this is associated with your web browser, because I have seen that while running Firefox.

I know that doesn’t seem to help much, but if you are using any browser extensions, you might want to try disabling them.

Another idea is to do your browsing with a different browser for a while, and see if you still get crashes.

 

[timelessbeing]

I do use FF with several plugins. Wish there was a way to narrow it down better.

 

[MacBird]

You could disable one extension at a time and see which one causes the problems. Is there an improvement after installing Firefox 84?

 

[timelessbeing]

Hard to say because I'm not sure when it was updated. Guess I'll wait and see.

 

[timelessbeing]

Haven't had a browser panic in a while. So now I have sleep panics for a change!

panic(cpu 0 caller 0xffffff801f48915a): Sleep transition timed out after 180 seconds while entering darkwake on way to sleep. Suspected bundle: com.apple.iokit.IOUSBHostFamily. Thread 0x6287a.
Backtracing specified thread
Backtrace (CPU 0), Frame : Return Address
0xffffffb0e6c73848 : 0xffffff801ede768b
0xffffffb0e84f3920 : 0xffffff801ecdd912
0xffffffb0e84f3990 : 0xffffff801ecdc3af
0xffffffb0e84f39e0 : 0xffffff801eccc663
0xffffffb0e84f3a20 : 0xffffff801f415f4f
0xffffffb0e84f3a60 : 0xffffff801f417223
0xffffffb0e84f3aa0 : 0xffffff80219789aa
0xffffffb0e84f3c10 : 0xffffff8021b14451
0xffffffb0e84f3c90 : 0xffffff8021b5dc0f
0xffffffb0e84f3ce0 : 0xffffff8021977532
0xffffffb0e84f3d60 : 0xffffff801f418a5f
0xffffffb0e84f3dc0 : 0xffffff802197719b
0xffffffb0e84f3df0 : 0xffffff801f3fc1b1
0xffffffb0e84f3e60 : 0xffffff801f3fbf4a
0xffffffb0e84f3e80 : 0xffffff801ecfe6b5
0xffffffb0e84f3ef0 : 0xffffff801ecff5c4
0xffffffb0e84f3fa0 : 0xffffff801ec5e13e
      Kernel Extensions in backtrace:
         com.apple.iokit.IOUSBHostFamily(1.2)[A4EDF9D5-1A4C-35EA-A92E-88332B37F8D9]@0xffffff802195e000->0xffffff80219eafff
            dependency: com.apple.driver.AppleBusPowerController(1.0)[D1476993-053E-3169-BC6E-52C98F57801E]@0xffffff801ff8c000->0xffffff801ff8ffff
            dependency: com.apple.driver.AppleSMC(3.1.9)[D674490B-26E7-312B-9E8E-03250124CCC6]@0xffffff8020294000->0xffffff80202acfff
            dependency: com.apple.driver.usb.AppleUSBCommon(1.0)[6A5D1CE8-2016-3F4A-B7EB-C696354F9D15]@0xffffff80203e1000->0xffffff80203e4fff
            dependency: com.apple.driver.AppleUSBHostMergeProperties(1.2)[F2C4C493-4BFB-3427-AECB-8ED237D074F5]@0xffffff8021a59000->0xffffff8021a59fff
            dependency: com.apple.iokit.IOACPIFamily(1.4)[C8F0E837-965A-3EB4-B8F6-4C2142046028]@0xffffff80210d7000->0xffffff80210d8fff
         com.apple.driver.usb.AppleUSBXHCI(1.2)[97A712A5-EE33-39E3-A379-9B7F9E6C29B8]@0xffffff8021afc000->0xffffff8021b49fff
            dependency: com.apple.driver.usb.AppleUSBCommon(1.0)[6A5D1CE8-2016-3F4A-B7EB-C696354F9D15]@0xffffff80203e1000->0xffffff80203e4fff
            dependency: com.apple.iokit.IOACPIFamily(1.4)[C8F0E837-965A-3EB4-B8F6-4C2142046028]@0xffffff80210d7000->0xffffff80210d8fff
            dependency: com.apple.iokit.IOUSBHostFamily(1.2)[A4EDF9D5-1A4C-35EA-A92E-88332B37F8D9]@0xffffff802195e000->0xffffff80219eafff
         com.apple.driver.usb.AppleUSBXHCIPCI(1.2)[D951AB7B-3499-3186-92FB-99503DC6ACDB]@0xffffff8021b53000->0xffffff8021b7afff
            dependency: com.apple.driver.usb.AppleUSBCommon(1.0)[6A5D1CE8-2016-3F4A-B7EB-C696354F9D15]@0xffffff80203e1000->0xffffff80203e4fff
            dependency: com.apple.driver.usb.AppleUSBXHCI(1.2)[97A712A5-EE33-39E3-A379-9B7F9E6C29B8]@0xffffff8021afc000->0xffffff8021b49fff
            dependency: com.apple.iokit.IOACPIFamily(1.4)[C8F0E837-965A-3EB4-B8F6-4C2142046028]@0xffffff80210d7000->0xffffff80210d8fff
            dependency: com.apple.iokit.IOPCIFamily(2.9)[D0F1BFB8-C28E-3E70-891B-73B783189394]@0xffffff802162c000->0xffffff8021653fff
            dependency: com.apple.iokit.IOUSBHostFamily(1.2)[A4EDF9D5-1A4C-35EA-A92E-88332B37F8D9]@0xffffff802195e000->0xffffff80219eafff

Process name corresponding to current thread: kernel_task
Boot args: chunklist-security-epoch=0 -chunklist-no-rev2-dev

Mac OS version:
20C69

Kernel version:
Darwin Kernel Version 20.2.0: Wed Dec  2 20:39:59 PST 2020; root:xnu-7195.60.75~1/RELEASE_X86_64
Kernel UUID: 82E2050C-5936-3D24-AD3B-EC4EC5C09E11
KernelCache slide: 0x000000001ea00000
KernelCache base:  0xffffff801ec00000
Kernel slide:      0x000000001ea10000
Kernel text base:  0xffffff801ec10000
__HIB  text base: 0xffffff801eb00000
System model name: MacBookPro16,1 (Mac-E1008331FDC96864)
System shutdown begun: NO
Hibernation exit count: 0

System uptime in nanoseconds: 95646348432667
Last Sleep:           absolute           base_tsc          base_nano
  Uptime  : 0x000056fd669f579c
  Sleep   : 0x00001c94fbddfe1e 0x00006fd9bb07814e 0x0000194d0bda40bb
  Wake    : 0x00001c952d67d202 0x0000799c539d06d4 0x00001c950cb138bc
last started kext at 73290113810337: >usb.IOUSBHostHIDDevice    1.2 (addr 0xffffff8021bad000, size 40960)
last stopped kext at 55494250099057: >!UAudio    401.4 (addr 0xffffff7fbf10f000, size 307200)