Why is zfs panicking? thanks

[kocoman1]

System information

Type	Version/Name
Distribution Name
Distribution Version
Linux Kernel
Architecture
ZFS Version
SPL Version

Describe the problem you're observing

Describe how to reproduce the problem

Include any warning/errors/backtraces from the system logs

panic(cpu 2 caller 0xffffff800c04c32a): Kernel trap at 0xffffff7f8e993d26, type 14=page fault, registers:
CR0: 0x000000008001003b, CR2: 0x0000000000000000, CR3: 0x0000000012f0b000, CR4: 0x00000000000406e0
RAX: 0x0000000000000000, RBX: 0xffffff8119614a78, RCX: 0x0000000000000000, RDX: 0x0000000003000000
RSP: 0xffffff913d4bbf30, RBP: 0xffffff913d4bbfa0, RSI: 0xffffff8119614aa0, RDI: 0x0000000000000000
R8:  0x0000000000000000, R9:  0x0000000000989680, R10: 0x0000000000000000, R11: 0x0000007735c182d9
R12: 0x0000000000000a85, R13: 0xffffff8128146898, R14: 0x0000000000000000, R15: 0x00000e1dc19b333f
RFL: 0x0000000000010202, RIP: 0xffffff7f8e993d26, CS:  0x0000000000000008, SS:  0x0000000000000000
Fault CR2: 0x0000000000000000, Error code: 0x0000000000000002, Fault CPU: 0x2, PL: 0, VF: 1

Backtrace (CPU 2), Frame : Return Address
0xffffff913d4bb850 : 0xffffff800bf215cd mach_kernel : _handle_debugger_trap + 0x49d
0xffffff913d4bb8a0 : 0xffffff800c05a3c5 mach_kernel : _kdp_i386_trap + 0x155
0xffffff913d4bb8e0 : 0xffffff800c04bf7e mach_kernel : _kernel_trap + 0x4ee
0xffffff913d4bb930 : 0xffffff7f90273a7d as.vit9696.VirtualSMC : __ZN18VirtualSMCProvider10kernelTrapI22x86_saved_state_1010_tEEvPT_Pm + 0x46d
0xffffff913d4bb9d0 : 0xffffff800bec7a40 mach_kernel : _return_from_trap + 0xe0
0xffffff913d4bb9f0 : 0xffffff800bf20c97 mach_kernel : _DebuggerTrapWithState + 0x17
0xffffff913d4bbaf0 : 0xffffff800bf21087 mach_kernel : _panic_trap_to_debugger + 0x227
0xffffff913d4bbb40 : 0xffffff800c6c2c7c mach_kernel : _panic + 0x54
0xffffff913d4bbbb0 : 0xffffff800c04c32a mach_kernel : _sync_iss_to_iks + 0x2aa
0xffffff913d4bbd30 : 0xffffff800c04c028 mach_kernel : _kernel_trap + 0x598
0xffffff913d4bbd80 : 0xffffff7f90273a7d as.vit9696.VirtualSMC : __ZN18VirtualSMCProvider10kernelTrapI22x86_saved_state_1010_tEEvPT_Pm + 0x46d
0xffffff913d4bbe20 : 0xffffff800bec7a40 mach_kernel : _return_from_trap + 0xe0
0xffffff913d4bbe40 : 0xffffff7f8e993d26 net.lundman.spl : _taskq_thread + 0xf8
0xffffff913d4bbfa0 : 0xffffff800bec713e mach_kernel : _call_continuation + 0x2e
      Kernel Extensions in backtrace:
         as.vit9696.VirtualSMC(1.1.4)[D51ACAF0-8CAA-3DC2-8260-C51D354709DF]@0xffffff7f90264000->0xffffff7f9028afff
            dependency: as.vit9696.Lilu(1.4.5)[04010205-4C3D-3B04-BAF5-48AA69FE71F2]@0xffffff7f90081000
            dependency: com.apple.iokit.IOACPIFamily(1.4)[9D1FF279-C4A2-3344-902F-E0B22B508689]@0xffffff7f8cca1000
         net.lundman.spl(1.9.4)[F4C8FC99-7C45-3C5A-BE70-A23D3A03170D]@0xffffff7f8e986000->0xffffff7f8fb7bfff

BSD process name corresponding to current thread: kernel_task
Boot args: msgbuf=393216 -radvesa npci=0x2000 -v debug=0x100 keepsyms=1 

Mac OS version:
19E287

Kernel version:
Darwin Kernel Version 19.4.0: Wed Mar  4 22:28:40 PST 2020; root:xnu-6153.101.6~15/RELEASE_X86_64
Kernel UUID: AB0AA7EE-3D03-3C21-91AD-5719D79D7AF6
Kernel slide:     0x000000000bc00000
Kernel text base: 0xffffff800be00000
__HIB  text base: 0xffffff800bd00000
System model name: iMacPro1,1 (Mac-7BA5B2D9E42DDD94)
System shutdown begun: NO
Panic diags file available: YES (0x0)

System uptime in nanoseconds: 15773832300059
last loaded kext at 14463807127: org.virtualbox.kext.VBoxNetAdp	6.1.4 (addr 0xffffff7f90492000, size 28672)
last unloaded kext at 190856079786: >!AHPET	1.8 (addr 0xffffff7f8e3c0000, size 20480)
loaded kexts:
org.virtualbox.kext.VBoxNetAdp	6.1.4
org.virtualbox.kext.VBoxNetFlt	6.1.4
org.virtualbox.kext.VBoxUSB	6.1.4
org.virtualbox.kext.VBoxDrv	6.1.4
com.paragon-software.filesystems.extfs	30.3.11
com.nomachine.driver.nxau	4.1.b2
com.objective-see.lulu	1.2.3
net.lundman.zfs	1.9.4
net.lundman.spl	1.9.4
com.insanelymac.RealtekRTL8111	2.2.2
as.vit9696.VirtualSMC	1.1.4
as.vit9696.WhateverGreen	1.4.0
as.vit9696.!AALC	1.5.0
as.vit9696.Lilu	1.4.5
com.rehabman.driver.USBInjectAll	0.7.1
@fileutil	20.036.15
@filesystems.autofs	3.0
@AGDCPluginDisplayMetrics	5.1.16
>!AUpstreamUserClient	3.6.8
>!AMCCSControl	1.11
>!AHV	1
|IOUserEthernet	1.0.1
|IO!BSerialManager	7.0.4f6
>pmtelemetry	1
@Dont_Steal_Mac_OS_X	7.0.0
>!A!ISlowAdaptiveClocking	4.0.0
>ACPI_SMC_PlatformPlugin	1.0.0
>!A!IMCEReporter	115
|SCSITaskUserClient	422.101.1
@private.KextAudit	1.0
>!AVirtIO	1.0
@filesystems.hfs.kext	522.100.5
@!AFSCompression.!AFSCompressionTypeDataless	1.0.0d1
@BootCache	40
@!AFSCompression.!AFSCompressionTypeZlib	1.0.0
@filesystems.apfs	1412.101.1
>!AAHCIPort	341.0.2
>!AACPIButtons	6.1
>!ARTC	2.0
>!ASMBIOS	2.1
>!AAPIC	1.7
$!AImage4	1
@nke.applicationfirewall	303
$TMSafetyNet	8
@!ASystemPolicy	2.0.0
>!A!ICPUPowerManagement	222.0.0
|EndpointSecurity	1
|IOUSBUserClient	900.4.2
@kext.triggers	1.0
>usb.networking	5.0.0
>usb.!UHostCompositeDevice	1.2
>!ASMBus!C	1.0.18d1
|IOSMBus!F	1.1
|IOAVB!F	840.3
>!ASSE	1.0
|IO!B!F	7.0.4f6
|IO!BPacketLogger	7.0.4f6
@!AGPUWrangler	5.1.16
|IOSlowAdaptiveClocking!F	1.0.0
>IOPlatformPluginLegacy	1.0.0
>IOPlatformPlugin!F	6.0.0d8
|IONDRVSupport	575.1
@kext.AMDSupport	3.0.8
@!AGraphicsDeviceControl	5.1.16
|IOGraphics!F	575.1
@plugin.IOgPTPPlugin	840.3
|IOEthernetAVB!C	1.1.0
|IOSkywalk!F	1
|IOAHCISerialATAPI	268
|IOAudio!F	300.2
@vecLib.kext	1.2.0
|IOSerial!F	11
|IOSurface	269.11
@filesystems.hfs.encodings.kext	1
|IOAHCIBlock!S	316.100.5
>usb.!UOHCIPCI	1.2
>usb.!UOHCI	1.2
>usb.!UEHCI	1.2
|IOAHCI!F	290.0.1
>usb.!UHostPacketFilter	1.0
|IOUSB!F	900.4.2
>!AEFINVRAM	2.1
>!AEFIRuntime	2.1
|IOHID!F	2.0.0
$quarantine	4
$sandbox	300.0
@kext.!AMatch	1.0.0d1
>DiskImages	493.0.0
>!AFDEKeyStore	28.30
>!AEffaceable!S	1.0
>!AKeyStore	2
>!UTDM	489.101.1
|IOSCSIBlockCommandsDevice	422.101.1
>!ACredentialManager	1.0
>KernelRelayHost	1
>!ASEPManager	1.0.1
>IOSlaveProcessor	1
|IOUSBMass!SDriver	157.101.3
|IOSCSIArchitectureModel!F	422.101.1
|IO!S!F	2.1
|IOUSBHost!F	1.2
>!UHostMergeProperties	1.2
>usb.!UCommon	1.0
>!ABusPower!C	1.0
|CoreAnalytics!F	1
>!AMobileFileIntegrity	1.0.5
@kext.CoreTrust	1
|IOTimeSync!F	840.3
|IONetworking!F	3.4
|IOReport!F	47
>!AACPIPlatform	6.1
>!ASMC	3.1.9
>watchdog	1
|IOPCI!F	2.9
|IOACPI!F	1.4
@kec.pthread	1
@kec.corecrypto	1.0
@kec.Libm	1

[lundman]

0xffffff913d4bbe20 : 0xffffff800bec7a40 mach_kernel : _return_from_trap + 0xe0
0xffffff913d4bbe40 : 0xffffff7f8e993d26 net.lundman.spl : _taskq_thread + 0xf8

The taskqs are about to start working on a task, but dies (before|as-it) calling it. Not something I've seen before, taskq code is from Solaris, and you are running 1.9.4 which is rather stable. That is a bit of a mystery. I don't know what as.vit9696. are, but they are also involved.

[kocoman1]

I used ubuntu as zfs originally, but it always reboot itself on high loads, can't find the logs to determine why. so I used osx to test it out, (then windows later to see if there is a BSOD with debug info) the vit9696 is opencore for hacktonishes.

Would compliing the latest maczfs help? or enable verbose debugging? I did that with ubuntu (install latest zfs) but its still crashes, tried to limit cpu to 2 still not work. Is there any way I can limit the speed of the zfs? maybe cpu overheating? psu problem?

Thanks