Kernel Panic (idle state)

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Kernel Panic (idle state)

Post by BrianDieckman » Fri Sep 28, 2012 12:28 pm

Hello!

First, thanks for update 1.1.1 It fixed my zpool create issue (two drives had existing GPT slices)

My panic happened in an apparently idle state. There was no scrub or other activity that I know of going on. After the panic, I used the ZEVO Preferences pane to Validate the Data: 0 errors encountered, Automatically repaired 702 KB.

First some system information:
Host: Intel Xserve (Early 2008) running Snow Leopard Server
Enclosure: Two Xserve RAID devices, both configured with controller A (upper) with drives 1-7 as Enhanced JBOD. These 14 500GB drives are in a RAIDZ(2) array.

Here's the details of the panic:

Code: Select all
Interval Since Last Panic Report:  1930429 sec
Panics Since Last Report:          2
Anonymous UUID:                    4A0E941A-70AD-4451-AA87-4AAB37B91A49

Fri Sep 28 10:01:12 2012
panic(cpu 3 caller 0xffffff7f80d980da): "zio_notify_parent: zero io_children [0, 0], err 0, 0xffffff8126dbd360 0 0xffffff8126dbd5e8\n"@/staging/zevo/src/uts/common/fs/zfs/zio.c:478
Backtrace (CPU 3), Frame : Return Address
0xffffff80d850bd70 : 0xffffff8000204d15
0xffffff80d850be70 : 0xffffff7f80d980da
0xffffff80d850bec0 : 0xffffff7f80d96d31
0xffffff80d850bef0 : 0xffffff7f80d94369
0xffffff80d850bf30 : 0xffffff7f80d04c39
0xffffff80d850bfa0 : 0xffffff80002c8527
      Kernel Extensions in backtrace (with dependencies):
         com.getgreenbytes.filesystem.zfs(2012.09.23)@0xffffff7f80cf7000->0xffffff7f80e36fff
            dependency: com.apple.iokit.IOStorageFamily(1.6.3)@0xffffff7f80884000

BSD process name corresponding to current thread: kernel_task

Mac OS version:
10K549

Kernel version:
Darwin Kernel Version 10.8.0: Tue Jun  7 16:32:41 PDT 2011; root:xnu-1504.15.3~1/RELEASE_X86_64
System model name: Xserve2,1 (Mac-F42289C8)

System uptime in nanoseconds: 82650218978443
unloaded kexts:
com.apple.iokit.IOAHCIFamily   2.0.6 (addr 0xffffff7f80994000, size 0x28672) - last unloaded 100892015805
loaded kexts:
com.aladdin.kext.aksfridge   1.0.2
com.sns.driver.SnsiSCSI   5.1.0
com.sns.driver.Xtarget   1.1.1
com.getgreenbytes.driver.zfs   2012.09.14
com.getgreenbytes.filesystem.zfs   2012.09.23
com.sns.driver.SNSArchitectureModel   1.1.3
com.apple.filesystems.afpfs   9.7.1 - last loaded 20391517597035
com.apple.nke.asp_tcp   5.0
com.apple.filesystems.autofs   2.1.0
com.apple.driver.AppleHWSensor   1.9.3d0
com.apple.Dont_Steal_Mac_OS_X   7.0.0
com.apple.iokit.CHUDUtils   364
com.apple.driver.AppleUpstreamUserClient   3.5.7
com.apple.iokit.CHUDProf   366
com.apple.driver.AppleMCCSControl   1.0.20
com.apple.driver.AppleIntelPenrynProfile   17.1
com.apple.kext.ATIFramebuffer   6.3.6
com.apple.driver.AudioIPCDriver   1.1.6
com.apple.ATIRadeonX1000   6.3.6
com.apple.driver.AppleSEP   1.4.2
com.apple.driver.AppleMCEDriver   1.1.9
com.apple.driver.AppleBMC   2.0.2
com.apple.driver.Apple16X50ACPI   3.0
com.apple.driver.ACPI_SMC_PlatformPlugin   4.7.0a1
com.apple.driver.AppleLPC   1.5.1
com.apple.driver.AppleIntel8254XEthernet   2.1.3b1
com.apple.driver.AppleRAID   4.0.6
com.apple.iokit.SCSITaskUserClient   2.6.8
com.apple.driver.AppleFWOHCI   4.7.3
com.apple.driver.AppleUSBHub   4.2.4
com.apple.BootCache   31.1
com.apple.AppleFSCompression.AppleFSCompressionTypeZlib   1.0.0d1
com.apple.driver.AppleLSIFusionMPT   2.5.0
com.apple.driver.AppleUSBEHCI   4.2.4
com.apple.driver.AppleEFINVRAM   1.4.0
com.apple.driver.AppleIntelPIIXATA   2.5.1
com.apple.driver.AppleUSBUHCI   4.2.0
com.apple.driver.AppleRTC   1.3.1
com.apple.driver.AppleACPIButtons   1.3.6
com.apple.driver.AppleHPET   1.5
com.apple.driver.AppleSMBIOS   1.7
com.apple.driver.AppleACPIEC   1.3.6
com.apple.driver.AppleAPIC   1.4
com.apple.driver.AppleIntelCPUPowerManagementClient   142.6.0
com.apple.security.sandbox   1
com.apple.security.quarantine   0
com.apple.nke.applicationfirewall   2.1.14
com.apple.driver.AppleIntelCPUPowerManagement   142.6.0
com.apple.driver.AppleProfileReadCounterAction   17
com.apple.driver.AppleProfileTimestampAction   10
com.apple.driver.AppleProfileThreadInfoAction   14
com.apple.driver.AppleProfileRegisterStateAction   10
com.apple.driver.AppleProfileKEventAction   10
com.apple.driver.AppleProfileCallstackAction   20
com.apple.iokit.IOSurface   74.2
com.apple.iokit.IOBluetoothSerialManager   2.4.5f3
com.apple.iokit.CHUDKernLib   365
com.apple.iokit.IOAudioFamily   1.8.3fc2
com.apple.kext.OSvKernDSPLib   1.3
com.apple.iokit.IONDRVSupport   2.2.1
com.apple.iokit.IOFireWireIP   2.0.3
com.apple.iokit.AppleProfileFamily   41.4
com.apple.driver.Apple16X50Serial   3.0
com.apple.iokit.IOSerialFamily   10.0.3
com.apple.driver.AppleSMC   3.1.0d5
com.apple.driver.IOPlatformPluginFamily   4.7.0a1
com.apple.kext.ATI1300Controller   6.3.6
com.apple.kext.ATISupport   6.3.6
com.apple.iokit.IOGraphicsFamily   2.2.1
com.apple.iokit.IONetworkingFamily   1.10
com.apple.driver.XsanFilter   402.1
com.apple.iokit.IOSCSIBlockCommandsDevice   2.6.8
com.apple.iokit.IOSCSIMultimediaCommandsDevice   2.6.8
com.apple.iokit.IOBDStorageFamily   1.6
com.apple.iokit.IODVDStorageFamily   1.6
com.apple.iokit.IOCDStorageFamily   1.6.1
com.apple.iokit.IOATAPIProtocolTransport   2.5.1
com.apple.iokit.IOFireWireFamily   4.2.6
com.apple.iokit.IOUSBUserClient   4.2.4
com.apple.iokit.IOSCSIParallelFamily   2.1.1
com.apple.iokit.IOSCSIArchitectureModelFamily   2.6.8
com.apple.iokit.IOATAFamily   2.5.1
com.apple.iokit.IOUSBFamily   4.2.4
com.apple.driver.AppleEFIRuntime   1.4.0
com.apple.driver.AppleKeyswitch   1.0.5f4
com.apple.iokit.IOHIDFamily   1.6.6
com.apple.iokit.IOSMBusFamily   1.1
com.apple.security.TMSafetyNet   6
com.apple.kext.AppleMatch   1.0.0d1
com.apple.driver.DiskImages   289.1
com.apple.iokit.IOStorageFamily   1.6.3
com.apple.driver.AppleACPIPlatform   1.3.6
com.apple.iokit.IOPCIFamily   2.6.5
com.apple.iokit.IOACPIFamily   1.3.0
Model: Xserve2,1, BootROM XS21.006C.B06, 8 processors, Quad-Core Intel Xeon, 3 GHz, 8 GB, SMC 1.26f3
Graphics: ATI Radeon X1300, ATY,RadeonX1300, PCIe, 64 MB
Memory Module: global_name
Network Service: Ethernet 1, Ethernet, en0
PCI Card: ATY,RadeonX1300, sppci_displaycontroller, Mezzanine
PCI Card: Apple 2 Port 4Gbps Fibre Channel Card, sppci_fibrechannel, Slot-1
PCI Card: Apple 2 Port 4Gbps Fibre Channel Card, sppci_fibrechannel, Slot-1
PCI Card: pci1000,646, sppci_fibrechannel, Slot-2@5,0,0
PCI Card: pci1000,646, sppci_fibrechannel, Slot-2@5,0,1
PCI Card: pci1000,646, sppci_fibrechannel, Slot-2@6,0,0
PCI Card: pci1000,646, sppci_fibrechannel, Slot-2@6,0,1
Parallel ATA Device: MATSHITADVD-R   UJ-85J
Fibre Channel Device: SCSI Target Device @ 0
Fibre Channel Device: SCSI Target Device @ 0
Fibre Channel Device: SCSI Target Device @ 0
Fibre Channel Device: SCSI Target Device @ 0
USB Device: Frontpanel Controller, 0x05ac  (Apple Inc.), 0x8261, 0x3d100000 / 2
BrianDieckman Offline


 
Posts: 17
Joined: Tue Sep 25, 2012 2:11 pm

Re: Kernel Panic (idle state)

Post by BrianDieckman » Mon Oct 01, 2012 7:48 am

Another kernel panic this weekend. This one occurred during a backup from a network drive (to the only zpool on the machine)

Code: Select all
Interval Since Last Panic Report:  2150879 sec
Panics Since Last Report:          3
Anonymous UUID:                    4A0E941A-70AD-4451-AA87-4AAB37B91A49

Sun Sep 30 12:23:05 2012
panic(cpu 5 caller 0xffffff7f80d980da): "zio_notify_parent: zero io_children [0, 0], err 0, 0xffffff80d16b23f8 0 0xffffff80d16b2680\n"@/staging/zevo/src/uts/common/fs/zfs/zio.c:478
Backtrace (CPU 5), Frame : Return Address
0xffffff80b1a6bd70 : 0xffffff8000204d15
0xffffff80b1a6be70 : 0xffffff7f80d980da
0xffffff80b1a6bec0 : 0xffffff7f80d96d31
0xffffff80b1a6bef0 : 0xffffff7f80d94369
0xffffff80b1a6bf30 : 0xffffff7f80d04c39
0xffffff80b1a6bfa0 : 0xffffff80002c8527
      Kernel Extensions in backtrace (with dependencies):
         com.getgreenbytes.filesystem.zfs(2012.09.23)@0xffffff7f80cf7000->0xffffff7f80e36fff
            dependency: com.apple.iokit.IOStorageFamily(1.6.3)@0xffffff7f80884000

BSD process name corresponding to current thread: kernel_task

Mac OS version:
10K549

Kernel version:
Darwin Kernel Version 10.8.0: Tue Jun  7 16:32:41 PDT 2011; root:xnu-1504.15.3~1/RELEASE_X86_64
System model name: Xserve2,1 (Mac-F42289C8)

System uptime in nanoseconds: 155254423526307
unloaded kexts:
com.apple.driver.AppleUSBComposite   3.9.0 (addr 0xffffff7f809a1000, size 0x16384) - last unloaded 53806475161929
loaded kexts:
com.aladdin.kext.aksfridge   1.0.2
com.sns.driver.SnsiSCSI   5.1.0
com.sns.driver.Xtarget   1.1.1
com.getgreenbytes.driver.zfs   2012.09.14
com.getgreenbytes.filesystem.zfs   2012.09.23
com.sns.driver.SNSArchitectureModel   1.1.3
com.apple.filesystems.afpfs   9.7.1 - last loaded 53602956277271
com.apple.nke.asp_tcp   5.0
com.apple.filesystems.autofs   2.1.0
com.apple.driver.AppleHWSensor   1.9.3d0
com.apple.Dont_Steal_Mac_OS_X   7.0.0
com.apple.iokit.CHUDUtils   364
com.apple.driver.AppleUpstreamUserClient   3.5.7
com.apple.iokit.CHUDProf   366
com.apple.driver.AppleMCCSControl   1.0.20
com.apple.driver.AppleIntelPenrynProfile   17.1
com.apple.kext.ATIFramebuffer   6.3.6
com.apple.driver.AudioIPCDriver   1.1.6
com.apple.ATIRadeonX1000   6.3.6
com.apple.driver.AppleSEP   1.4.2
com.apple.driver.AppleMCEDriver   1.1.9
com.apple.driver.AppleBMC   2.0.2
com.apple.driver.Apple16X50ACPI   3.0
com.apple.driver.ACPI_SMC_PlatformPlugin   4.7.0a1
com.apple.driver.AppleLPC   1.5.1
com.apple.driver.AppleIntel8254XEthernet   2.1.3b1
com.apple.driver.AppleRAID   4.0.6
com.apple.iokit.SCSITaskUserClient   2.6.8
com.apple.driver.AppleFWOHCI   4.7.3
com.apple.driver.AppleUSBHub   4.2.4
com.apple.driver.AppleUSBEHCI   4.2.4
com.apple.driver.AppleLSIFusionMPT   2.5.0
com.apple.driver.AppleEFINVRAM   1.4.0
com.apple.BootCache   31.1
com.apple.AppleFSCompression.AppleFSCompressionTypeZlib   1.0.0d1
com.apple.driver.AppleIntelPIIXATA   2.5.1
com.apple.driver.AppleUSBUHCI   4.2.0
com.apple.driver.AppleACPIButtons   1.3.6
com.apple.driver.AppleRTC   1.3.1
com.apple.driver.AppleHPET   1.5
com.apple.driver.AppleSMBIOS   1.7
com.apple.driver.AppleACPIEC   1.3.6
com.apple.driver.AppleAPIC   1.4
com.apple.driver.AppleIntelCPUPowerManagementClient   142.6.0
com.apple.security.sandbox   1
com.apple.security.quarantine   0
com.apple.nke.applicationfirewall   2.1.14
com.apple.driver.AppleIntelCPUPowerManagement   142.6.0
com.apple.driver.AppleProfileReadCounterAction   17
com.apple.driver.AppleProfileTimestampAction   10
com.apple.driver.AppleProfileThreadInfoAction   14
com.apple.driver.AppleProfileRegisterStateAction   10
com.apple.driver.AppleProfileKEventAction   10
com.apple.driver.AppleProfileCallstackAction   20
com.apple.iokit.IOSurface   74.2
com.apple.iokit.IOBluetoothSerialManager   2.4.5f3
com.apple.iokit.CHUDKernLib   365
com.apple.iokit.IOAudioFamily   1.8.3fc2
com.apple.kext.OSvKernDSPLib   1.3
com.apple.iokit.IONDRVSupport   2.2.1
com.apple.iokit.IOFireWireIP   2.0.3
com.apple.iokit.AppleProfileFamily   41.4
com.apple.driver.Apple16X50Serial   3.0
com.apple.iokit.IOSerialFamily   10.0.3
com.apple.driver.AppleSMC   3.1.0d5
com.apple.driver.IOPlatformPluginFamily   4.7.0a1
com.apple.kext.ATI1300Controller   6.3.6
com.apple.kext.ATISupport   6.3.6
com.apple.iokit.IOGraphicsFamily   2.2.1
com.apple.iokit.IONetworkingFamily   1.10
com.apple.driver.XsanFilter   402.1
com.apple.iokit.IOSCSIBlockCommandsDevice   2.6.8
com.apple.iokit.IOSCSIMultimediaCommandsDevice   2.6.8
com.apple.iokit.IOBDStorageFamily   1.6
com.apple.iokit.IODVDStorageFamily   1.6
com.apple.iokit.IOCDStorageFamily   1.6.1
com.apple.iokit.IOFireWireFamily   4.2.6
com.apple.iokit.IOATAPIProtocolTransport   2.5.1
com.apple.iokit.IOUSBUserClient   4.2.4
com.apple.iokit.IOSCSIParallelFamily   2.1.1
com.apple.iokit.IOSCSIArchitectureModelFamily   2.6.8
com.apple.iokit.IOATAFamily   2.5.1
com.apple.iokit.IOUSBFamily   4.2.4
com.apple.driver.AppleEFIRuntime   1.4.0
com.apple.driver.AppleKeyswitch   1.0.5f4
com.apple.iokit.IOHIDFamily   1.6.6
com.apple.iokit.IOSMBusFamily   1.1
com.apple.security.TMSafetyNet   6
com.apple.kext.AppleMatch   1.0.0d1
com.apple.driver.DiskImages   289.1
com.apple.iokit.IOStorageFamily   1.6.3
com.apple.driver.AppleACPIPlatform   1.3.6
com.apple.iokit.IOPCIFamily   2.6.5
com.apple.iokit.IOACPIFamily   1.3.0
Model: Xserve2,1, BootROM XS21.006C.B06, 8 processors, Quad-Core Intel Xeon, 3 GHz, 8 GB, SMC 1.26f3
Graphics: ATI Radeon X1300, ATY,RadeonX1300, PCIe, 64 MB
Memory Module: global_name
Network Service: Ethernet 1, Ethernet, en0
PCI Card: ATY,RadeonX1300, sppci_displaycontroller, Mezzanine
PCI Card: Apple 2 Port 4Gbps Fibre Channel Card, sppci_fibrechannel, Slot-1
PCI Card: Apple 2 Port 4Gbps Fibre Channel Card, sppci_fibrechannel, Slot-1
PCI Card: pci1000,646, sppci_fibrechannel, Slot-2@5,0,0
PCI Card: pci1000,646, sppci_fibrechannel, Slot-2@5,0,1
PCI Card: pci1000,646, sppci_fibrechannel, Slot-2@6,0,0
PCI Card: pci1000,646, sppci_fibrechannel, Slot-2@6,0,1
Parallel ATA Device: MATSHITADVD-R   UJ-85J
Fibre Channel Device: SCSI Target Device @ 0
Fibre Channel Device: SCSI Target Device @ 0
Fibre Channel Device: SCSI Target Device @ 0
Fibre Channel Device: SCSI Target Device @ 0
USB Device: Frontpanel Controller, 0x05ac  (Apple Inc.), 0x8261, 0x3d100000 / 2
BrianDieckman Offline


 
Posts: 17
Joined: Tue Sep 25, 2012 2:11 pm

Re: Kernel Panic (idle state)

Post by grahamperrin » Mon Oct 01, 2012 2:52 pm

If it helps: the line number 478, indicated by the panic file, seems to fall under the following heading/comment (in source):

/*
* ==========================================================================
* I/O parent/child relationships and pipeline interlocks
grahamperrin Offline

User avatar
 
Posts: 1596
Joined: Fri Sep 14, 2012 10:21 pm
Location: Brighton and Hove, United Kingdom

Re: Kernel Panic (idle state)

Post by BrianDieckman » Mon Oct 01, 2012 4:47 pm

That does help, Grahm. Thank you for that.

In looking at the logs for the two Xserve RAID units that make up this zpool, I'm seeing multiple Fibre LIP and Link Down messages The times aren't matching up exactly but they're within a minute of eachother. Now I just need to figure out chicken or egg!

Another issue for me to chase is the date/times on the logs on one of the units are way off. (June of 1985!)

I'll remedy those issues and see what happens.

-Brian

P.S. Another panic this afternoon at 2:46pm. Here's the code for that one.

Code: Select all
Interval Since Last Panic Report:  2175192 sec
Panics Since Last Report:          4
Anonymous UUID:                    4A0E941A-70AD-4451-AA87-4AAB37B91A49

Mon Oct  1 14:46:54 2012
panic(cpu 2 caller 0xffffff7f80d980da): "zio_notify_parent: zero io_children [0, 0], err 0, 0xffffff80dbd03900 0 0xffffff80dbd03b88\n"@/staging/zevo/src/uts/common/fs/zfs/zio.c:478
Backtrace (CPU 2), Frame : Return Address
0xffffff80b064bd70 : 0xffffff8000204d15
0xffffff80b064be70 : 0xffffff7f80d980da
0xffffff80b064bec0 : 0xffffff7f80d96d31
0xffffff80b064bef0 : 0xffffff7f80d94369
0xffffff80b064bf30 : 0xffffff7f80d04c39
0xffffff80b064bfa0 : 0xffffff80002c8527
      Kernel Extensions in backtrace (with dependencies):
         com.getgreenbytes.filesystem.zfs(2012.09.23)@0xffffff7f80cf7000->0xffffff7f80e36fff
            dependency: com.apple.iokit.IOStorageFamily(1.6.3)@0xffffff7f80884000

BSD process name corresponding to current thread: kernel_task

Mac OS version:
10K549

Kernel version:
Darwin Kernel Version 10.8.0: Tue Jun  7 16:32:41 PDT 2011; root:xnu-1504.15.3~1/RELEASE_X86_64
System model name: Xserve2,1 (Mac-F42289C8)

System uptime in nanoseconds: 94699780407490
unloaded kexts:
com.apple.iokit.IOAHCIFamily   2.0.6 (addr 0xffffff7f80994000, size 0x28672) - last unloaded 101961836675
loaded kexts:
com.aladdin.kext.aksfridge   1.0.2
com.sns.driver.SnsiSCSI   5.1.0
com.sns.driver.Xtarget   1.1.1
com.getgreenbytes.driver.zfs   2012.09.14
com.getgreenbytes.filesystem.zfs   2012.09.23
com.sns.driver.SNSArchitectureModel   1.1.3
com.apple.filesystems.afpfs   9.7.1 - last loaded 32855506890622
com.apple.nke.asp_tcp   5.0
com.apple.filesystems.autofs   2.1.0
com.apple.driver.AppleHWSensor   1.9.3d0
com.apple.Dont_Steal_Mac_OS_X   7.0.0
com.apple.iokit.CHUDUtils   364
com.apple.driver.AppleUpstreamUserClient   3.5.7
com.apple.iokit.CHUDProf   366
com.apple.driver.AppleMCCSControl   1.0.20
com.apple.driver.AppleIntelPenrynProfile   17.1
com.apple.kext.ATIFramebuffer   6.3.6
com.apple.driver.AudioIPCDriver   1.1.6
com.apple.ATIRadeonX1000   6.3.6
com.apple.driver.AppleSEP   1.4.2
com.apple.driver.AppleMCEDriver   1.1.9
com.apple.driver.AppleBMC   2.0.2
com.apple.driver.Apple16X50ACPI   3.0
com.apple.driver.ACPI_SMC_PlatformPlugin   4.7.0a1
com.apple.driver.AppleLPC   1.5.1
com.apple.driver.AppleIntel8254XEthernet   2.1.3b1
com.apple.driver.AppleRAID   4.0.6
com.apple.iokit.SCSITaskUserClient   2.6.8
com.apple.driver.AppleFWOHCI   4.7.3
com.apple.driver.AppleUSBHub   4.2.4
com.apple.BootCache   31.1
com.apple.driver.AppleUSBEHCI   4.2.4
com.apple.driver.AppleLSIFusionMPT   2.5.0
com.apple.driver.AppleEFINVRAM   1.4.0
com.apple.AppleFSCompression.AppleFSCompressionTypeZlib   1.0.0d1
com.apple.driver.AppleIntelPIIXATA   2.5.1
com.apple.driver.AppleUSBUHCI   4.2.0
com.apple.driver.AppleACPIButtons   1.3.6
com.apple.driver.AppleRTC   1.3.1
com.apple.driver.AppleHPET   1.5
com.apple.driver.AppleSMBIOS   1.7
com.apple.driver.AppleACPIEC   1.3.6
com.apple.driver.AppleAPIC   1.4
com.apple.driver.AppleIntelCPUPowerManagementClient   142.6.0
com.apple.security.sandbox   1
com.apple.security.quarantine   0
com.apple.nke.applicationfirewall   2.1.14
com.apple.driver.AppleIntelCPUPowerManagement   142.6.0
com.apple.driver.AppleProfileReadCounterAction   17
com.apple.driver.AppleProfileTimestampAction   10
com.apple.driver.AppleProfileThreadInfoAction   14
com.apple.driver.AppleProfileRegisterStateAction   10
com.apple.driver.AppleProfileKEventAction   10
com.apple.driver.AppleProfileCallstackAction   20
com.apple.iokit.IOSurface   74.2
com.apple.iokit.IOBluetoothSerialManager   2.4.5f3
com.apple.iokit.CHUDKernLib   365
com.apple.iokit.IOAudioFamily   1.8.3fc2
com.apple.kext.OSvKernDSPLib   1.3
com.apple.iokit.IONDRVSupport   2.2.1
com.apple.iokit.IOFireWireIP   2.0.3
com.apple.iokit.AppleProfileFamily   41.4
com.apple.driver.Apple16X50Serial   3.0
com.apple.iokit.IOSerialFamily   10.0.3
com.apple.driver.AppleSMC   3.1.0d5
com.apple.driver.IOPlatformPluginFamily   4.7.0a1
com.apple.kext.ATI1300Controller   6.3.6
com.apple.kext.ATISupport   6.3.6
com.apple.iokit.IOGraphicsFamily   2.2.1
com.apple.iokit.IONetworkingFamily   1.10
com.apple.driver.XsanFilter   402.1
com.apple.iokit.IOSCSIBlockCommandsDevice   2.6.8
com.apple.iokit.IOSCSIMultimediaCommandsDevice   2.6.8
com.apple.iokit.IOBDStorageFamily   1.6
com.apple.iokit.IODVDStorageFamily   1.6
com.apple.iokit.IOCDStorageFamily   1.6.1
com.apple.iokit.IOFireWireFamily   4.2.6
com.apple.iokit.IOATAPIProtocolTransport   2.5.1
com.apple.iokit.IOUSBUserClient   4.2.4
com.apple.iokit.IOSCSIParallelFamily   2.1.1
com.apple.iokit.IOSCSIArchitectureModelFamily   2.6.8
com.apple.iokit.IOATAFamily   2.5.1
com.apple.iokit.IOUSBFamily   4.2.4
com.apple.driver.AppleEFIRuntime   1.4.0
com.apple.driver.AppleKeyswitch   1.0.5f4
com.apple.iokit.IOHIDFamily   1.6.6
com.apple.iokit.IOSMBusFamily   1.1
com.apple.security.TMSafetyNet   6
com.apple.kext.AppleMatch   1.0.0d1
com.apple.driver.DiskImages   289.1
com.apple.iokit.IOStorageFamily   1.6.3
com.apple.driver.AppleACPIPlatform   1.3.6
com.apple.iokit.IOPCIFamily   2.6.5
com.apple.iokit.IOACPIFamily   1.3.0
Model: Xserve2,1, BootROM XS21.006C.B06, 8 processors, Quad-Core Intel Xeon, 3 GHz, 8 GB, SMC 1.26f3
Graphics: ATI Radeon X1300, ATY,RadeonX1300, PCIe, 64 MB
Memory Module: global_name
Network Service: Ethernet 1, Ethernet, en0
PCI Card: ATY,RadeonX1300, sppci_displaycontroller, Mezzanine
PCI Card: Apple 2 Port 4Gbps Fibre Channel Card, sppci_fibrechannel, Slot-1
PCI Card: Apple 2 Port 4Gbps Fibre Channel Card, sppci_fibrechannel, Slot-1
PCI Card: pci1000,646, sppci_fibrechannel, Slot-2@5,0,0
PCI Card: pci1000,646, sppci_fibrechannel, Slot-2@5,0,1
PCI Card: pci1000,646, sppci_fibrechannel, Slot-2@6,0,0
PCI Card: pci1000,646, sppci_fibrechannel, Slot-2@6,0,1
Parallel ATA Device: MATSHITADVD-R   UJ-85J
Fibre Channel Device: SCSI Target Device @ 0
Fibre Channel Device: SCSI Target Device @ 0
Fibre Channel Device: SCSI Target Device @ 0
Fibre Channel Device: SCSI Target Device @ 0
USB Device: Frontpanel Controller, 0x05ac  (Apple Inc.), 0x8261, 0x3d100000 / 2
BrianDieckman Offline


 
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Re: Kernel Panic (idle state)

Post by scasady » Tue Oct 02, 2012 9:37 am

I also got a similar panic (zio.c:478) with nothing in particular accessing the zfs disks.
This has happened a couple of times now.
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Re: Kernel Panic (idle state)

Post by dbrady » Tue Oct 02, 2012 9:47 am

How much memory do these machines have?
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Re: Kernel Panic (idle state)

Post by dbrady » Tue Oct 02, 2012 9:49 am

scasady wrote:I also got a similar panic (zio.c:478) with nothing in particular accessing the zfs disks.
This has happened a couple of times now.

Are you also on 10.6.8?
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Re: Kernel Panic (idle state)

Post by BrianDieckman » Tue Oct 02, 2012 1:51 pm

The Xserve in question has 8 GB of ram at the moment. I have 24 GB waiting for some down time to install. The only zpool configured is 6TB. (14x 500 GB in a raidz(2) configuration)
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Re: Kernel Panic (idle state)

Post by grahamperrin » Tue Oct 02, 2012 2:18 pm

BrianDieckman wrote:… 8 GB of ram … zpool configured is 6TB. (14x 500 GB in a raidz(2) configuration)


OK, so 8 is well above the 4 GB requirement for ZEVO Community Edition 1.1.1.

A parallel consideration: 1 GB of ARC for every TB of storage. I'm sort of out of my depth here, but I wonder whether 8 GB memory is sufficient for a 6 TB pool on the Apple OS.

Results of the following command may be useful:

zpool list

If insufficient memory is a factor – for either case in this topic – then 4GB RAM limitation? could be a good space to expand the discussion.
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Re: Kernel Panic (idle state)

Post by BrianDieckman » Tue Oct 02, 2012 2:23 pm

Code: Select all
usintha-svthgbackup:~ admin$ zpool list
NAME         SIZE   ALLOC    FREE     CAP  HEALTH  ALTROOT
Triage BU  6.36Ti   283Gi  6.09Ti      4%  ONLINE  -


I think in my case, the panics were simply due to half of the drives not being available. (When the FC Link went down) Handling that event more gracefully than a kernel panic would be nice but its understandable... I haven't looked at the code but I'm assuming that when a drive becomes unavailable there's a routine that determines if/how a rebuild would begin. A cursory check of the other drives in the zpool would result in massive errors with half the drives missing.
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