Cheule
Level 1 (68 points)

Q: USB bus freezing on Mac Pro late 2013

This problem has been plaguing me for almost 2 years.  Here is a link to a discussion to an old discussion about my problem, in which I thought I had finally fixed it, then the issue came back a month or so later ( Mac Pro Late 2013 USB problems / freezing ) .

 

Basically, I have intermittent USB bus freezes.  Sometimes once a week, sometimes 3-5 times a day.  Each freeze forces me to do a reboot.  I've had this happen right in the middle of work, which is infuriating.

 

As detailed in the old discussion thread, I tried installing a fresh OS, and it seemed to work for a spell, but in the end wasn't the solution.  Here's a list of common troubleshooting steps I've tried:

 

-New OS install after formatting HD

-Fresh user account with no 3rd party software installation

-pulling USB devices off the bus until I have nothing left but a keyboard and HD*  (I'll detail this more below)

-Resetting the PRAM, PMU, EFI and anything else I can think of.

-RAM tests

 

Since the USB bus was what was freezing, and the thunderbolt and BT buses were unaffected, I assumed it was a bad USB device.  So I've tried all manner of combinations of using USB hubs, not using hubs, removing non-essential USB devices etc. The only devices I had to have on, was a keyboard (but I've got 3 different ones, and have had bus crashes with all 3) and a G-Tech USB 3.0 HD.  The reason I am not really able to not remove the USB HD, is because my user folder is split between the built in 256MB SSD and the external USB drive (2TB).  I mean, I *could* boot without it attached, but it would be a very boring experience, because no relevant files would be available.  So I've been reticent to try that.

 

However, recently I got the idea that if I had the console open during a USB freeze, maybe I could capture some meaningful info.  I think I did, but when reading this log, I realize I'm at the limit of my knowledge.  It's a bit confusing to me.  My assumption is that the relevant info to the USB freeze is around 9/5/15 9:30am - 9:31am in the log.

 

Can someone with more knowledge than me please look at this log and tell me what their diagnosis would be?  If any additional info is needed, please ask and I'll be glad to post it.

 

System specs:

Late 2013 Mac Pro (MacPro6,1)

12GB RAM, 3.7GHz quad core

OS X 10.10.5 Yosemite

 

Log:

 

9/5/15 9:24:33.000 AMkernel[0][0xffffff804f578500][free]()
9/5/15 9:24:56.121 AMcom.apple.backupd[2385]Copied 3121 items (189.6 MB) from volume Valhalla. Linked 3470.
9/5/15 9:26:01.822 AMcom.apple.usbmuxd[79]_SendAttachNotification Device 90:8d:6c:43:7c:32@fe80::928d:6cff:fe43:7c32._apple-mobdev2._tcp.local. has already appeared on interface 4. Suppressing duplicate attach notification.
9/5/15 9:26:04.135 AMcom.apple.xpc.launchd[1](com.apple.xpc.launchd.domain.pid.MediaLibraryService.2752) Path not allowed in target domain: type = pid, path = /Library/Frameworks/iTunesLibrary.framework/Versions/A/XPCServices/com.apple.iT unesLibraryService.xpc error = 147: The specified service did not ship in the requestor's bundle, origin = /System/Library/Frameworks/MediaLibrary.framework/Versions/A/XPCServices/com.ap ple.MediaLibraryService.xpc
9/5/15 9:26:04.137 AMcom.apple.xpc.launchd[1](com.apple.xpc.launchd.domain.pid.MediaLibraryService.2752) Path not allowed in target domain: type = pid, path = /Library/Frameworks/iTunesLibrary.framework/Versions/A/XPCServices/com.apple.iT unesLibraryService.xpc error = 147: The specified service did not ship in the requestor's bundle, origin = /System/Library/Frameworks/MediaLibrary.framework/Versions/A/XPCServices/com.ap ple.MediaLibraryService.xpc
9/5/15 9:26:04.521 AMcom.apple.SecurityServer[80]Session 100076 created
9/5/15 9:26:10.224 AMcom.apple.MediaLibraryService[2752]unhandled sortKeyPath: basicProperties.ImportGroup for album: <AP2012_RKAlbum: 0x7fa1c04e7750 > modelId = 259, uuid = 'allPhotosAlbum' name='allPhotosAlbum', displayName='Photos'
9/5/15 9:27:03.242 AMcom.apple.iCloudHelper[2756]objc[2756]: Class FALogging is implemented in both /System/Library/PrivateFrameworks/FamilyCircle.framework/Versions/A/FamilyCircl e and /System/Library/PrivateFrameworks/FamilyNotification.framework/Versions/A/Famil yNotification. One of the two will be used. Which one is undefined.
9/5/15 9:27:03.259 AMcom.apple.xpc.launchd[1](com.apple.imfoundation.IMRemoteURLConnectionAgent) The _DirtyJetsamMemoryLimit key is not available on this platform.
9/5/15 9:27:03.686 AMCalendarAgent[284][com.apple.calendar.store.log.caldav.coredav] [Refusing to parse response to PROPPATCH because of content-type: [text/html; charset=UTF-8].]
9/5/15 9:27:03.818 AMCalendarAgent[284][com.apple.calendar.store.log.caldav.coredav] [Refusing to parse response to PROPPATCH because of content-type: [text/html; charset=UTF-8].]
9/5/15 9:27:04.019 AMCalendarAgent[284][com.apple.calendar.store.log.caldav.coredav] [Refusing to parse response to PROPPATCH because of content-type: [text/html; charset=UTF-8].]
9/5/15 9:27:04.147 AMCalendarAgent[284][com.apple.calendar.store.log.caldav.coredav] [Refusing to parse response to PROPPATCH because of content-type: [text/html; charset=UTF-8].]
9/5/15 9:29:06.990 AMiTunes[2727]Entered:_AMMuxedDeviceDisconnected, mux-device:1
9/5/15 9:29:06.990 AMiTunes[2727]Entered:__thr_AMMuxedDeviceDisconnected, mux-device:1
9/5/15 9:29:06.990 AMiTunes[2727]tid:21bd3 - Mux ID not found in mapping dictionary
9/5/15 9:29:06.990 AMiTunes[2727]tid:21bd3 - Can't handle disconnect with invalid ecid
9/5/15 9:30:42.000 AMkernel[0]**** [IOBluetoothHostControllerUSBTransport][InterruptReadHandler] -- Received kIOUSBPipeStalled error - retrying: 1
9/5/15 9:30:51.000 AMkernel[0][[0xffffff8048b9d000]  OpCode 0x200E (LE Create Connection Cancel) from: blued (85)  Synchronous  status: 0x00 (kIOReturnSuccess) state: 2 (BUSY) timeout: 6543] Bluetooth warning: An HCI Req timeout occurred.
9/5/15 9:30:51.000 AMkernel[0]**** [IOBluetoothHostControllerUSBTransport][ClearFeatureInterruptEndpointHalt] -- successfully posting another read for the mInt0InterruptPipe -- this = 0xffffff80460dd800
9/5/15 9:30:53.000 AMkernel[0]**** [IOBluetoothHostControllerUSBTransport][InterruptReadHandler] -- Received kIOUSBPipeStalled error - retrying: 1
9/5/15 9:31:02.000 AMkernel[0]**** [IOBluetoothHostControllerUSBTransport][ClearFeatureInterruptEndpointHalt] -- successfully posting another read for the mInt0InterruptPipe -- this = 0xffffff80460dd800
9/5/15 9:31:02.000 AMkernel[0]**** [IOBluetoothHostControllerUSBTransport][InterruptReadHandler] -- Received kIOUSBPipeStalled error - retrying: 1
9/5/15 9:31:07.000 AMkernel[0][0xffffff8039812e00](1)/(5) Device not responding
9/5/15 9:31:07.000 AMkernel[0][[0xffffff8052afa000]  OpCode 0x200E (LE Create Connection Cancel) from: blued (85)  Synchronous  status: 0x00 (kIOReturnSuccess) state: 2 (BUSY) timeout: 6543] Bluetooth warning: An HCI Req timeout occurred.
9/5/15 9:31:09.067 AMspindump[549]Saved spin report for iTunes version 12.2.2 (12.2.2.25) to /Library/Logs/DiagnosticReports/iTunes_2015-09-05-093109_Mac-Pro.spin
9/5/15 9:31:11.000 AMkernel[0]**** [IOBluetoothHostControllerUSBTransport][ClearFeatureInterruptEndpointHalt] -- successfully posting another read for the mInt0InterruptPipe -- this = 0xffffff80460dd800
9/5/15 9:31:12.000 AMkernel[0]**** [IOBluetoothHostControllerUSBTransport][InterruptReadHandler] -- Received kIOUSBPipeStalled error - retrying: 1
9/5/15 9:31:22.000 AMkernel[0]**** [IOBluetoothHostControllerUSBTransport][ClearFeatureInterruptEndpointHalt] -- successfully posting another read for the mInt0InterruptPipe -- this = 0xffffff80460dd800
9/5/15 9:31:22.000 AMkernel[0]**** [IOBluetoothHostControllerUSBTransport][InterruptReadHandler] -- Received kIOUSBPipeStalled error - retrying: 1
9/5/15 9:31:26.000 AMkernel[0]disk1s2: device/channel is not attached.
9/5/15 9:31:26.000 AMkernel[0]disk1s2: device/channel is not attached.
9/5/15 9:31:26.000 AMkernel[0]disk1s2: device/channel is not attached.
9/5/15 9:31:26.000 AMkernel[0]disk1s2: device/channel is not attached.
9/5/15 9:31:26.000 AMkernel[0]disk1s2: device/channel is not attached.
9/5/15 9:31:26.000 AMkernel[0]jnl: disk1s2: do_jnl_io: strategy err 0xdisk1s2: device/channel is not attached.
9/5/15 9:31:26.000 AMkernel[0]6
9/5/15 9:31:26.000 AMkernel[0]jnl: disk1s2: write_journal_header: error writing the journal header!
9/5/15 9:31:26.000 AMkernel[0]disk1s2: device/channel is not attached.
9/5/15 9:31:26.000 AMkernel[0]disk1s2: media is not present.
9/5/15 9:31:26.739 AMcom.apple.backupd[2385]Error: (-36) SrcErr:YES Copying /Volumes/Midgard/Users/seanb/Desktop/100MEDIA/DJI_0001.MOV to (null)
9/5/15 9:31:26.000 AMkernel[0]disk1s2: media is not present.
9/5/15 9:31:26.000 AMkernel[0]disk1s2: media is not present.
9/5/15 9:31:26.000 AMkernel[0]disk1s2: media is not present.
9/5/15 9:31:26.000 AMkernel[0]en2: BSSID changed to 90:72:40:23:98:23
9/5/15 9:31:26.000 AMkernel[0]en2: channel changed to 157,80
9/5/15 9:31:26.000 AMkernel[0]disk1s2: media is not present.
9/5/15 9:31:26.000 AMkernel[0]disk1s2: media is not present.
9/5/15 9:31:26.000 AMkernel[0]disk1s2: media is not present.
9/5/15 9:31:26.000 AMkernel[0]disk1s2: media is not present.
9/5/15 9:31:26.929 AMmdworker[2740]BUG in libdispatch client: kevent[EVFILT_VNODE] delete: "No such file or directory" - 0x2
9/5/15 9:31:26.955 AMmdworker[2732]BUG in libdispatch client: kevent[EVFILT_VNODE] delete: "No such file or directory" - 0x2
9/5/15 9:31:26.955 AMmdworker[2739]BUG in libdispatch client: kevent[EVFILT_VNODE] delete: "No such file or directory" - 0x2
9/5/15 9:31:26.955 AMmdworker[2719]BUG in libdispatch client: kevent[EVFILT_VNODE] delete: "No such file or directory" - 0x2
9/5/15 9:31:27.973 AMcom.apple.SecurityServer[80]Killing auth hosts
9/5/15 9:31:27.973 AMcom.apple.SecurityServer[80]Session 100062 destroyed
9/5/15 9:31:27.975 AMcom.apple.SecurityServer[80]Killing auth hosts
9/5/15 9:31:27.975 AMcom.apple.SecurityServer[80]Session 100058 destroyed
9/5/15 9:31:27.975 AMcom.apple.SecurityServer[80]Killing auth hosts
9/5/15 9:31:27.975 AMcom.apple.SecurityServer[80]Session 100067 destroyed
9/5/15 9:31:27.000 AMkernel[0]disk1s2: media is not present.
9/5/15 9:31:27.000 AMkernel[0]disk1s2: media is not present.
9/5/15 9:31:27.000 AMkernel[0]hfs: unmount initiated on Midgard on device disk1s2
9/5/15 9:31:27.000 AMkernel[0]jnl: disk1s2: close: journal 0xffffff8039303a80, is invalid.  aborting outstanding transactions
9/5/15 9:31:28.000 AMkernel[0][[0xffffff805a9ab000]  OpCode 0x200E (LE Create Connection Cancel) from: blued (85)  Synchronous  status: 0x00 (kIOReturnSuccess) state: 2 (BUSY) timeout: 6543] Bluetooth warning: An HCI Req timeout occurred.
9/5/15 9:31:29.000 AMkernel[0]IO80211AWDLPeerManager::setAwdlOperatingMode Setting the AWDL operation mode from AUTO to SUSPENDED
9/5/15 9:31:29.000 AMkernel[0]IO80211AWDLPeerManager::setAwdlSuspendedMode() Suspending AWDL, enterQuietMode(true)
9/5/15 9:31:29.000 AMkernel[0]ARPT: 23423.671870: MacAuthEvent en2   Auth result for: 90:72:40:23:98:23  MAC AUTH succeeded
9/5/15 9:31:29.000 AMkernel[0]AirPort: RSN handshake complete on en2
9/5/15 9:31:29.000 AMkernel[0]IO80211AWDLPeerManager::setAwdlOperatingMode Setting the AWDL operation mode from SUSPENDED to AUTO
9/5/15 9:31:29.000 AMkernel[0]IO80211AWDLPeerManager::setAwdlAutoMode Resuming AWDL
9/5/15 9:31:29.000 AMkernel[0]wl0: Roamed or switched channel, reason #0, bssid 90:72:40:23:98:23, last RSSI 0
9/5/15 9:31:29.000 AMkernel[0]en2: BSSID changed to 90:72:40:23:98:23
9/5/15 9:31:29.000 AMkernel[0]en2: channel changed to 157,80
9/5/15 9:31:29.000 AMkernel[0]en2::IO80211Interface::postMessage bssid changed
9/5/15 9:31:32.000 AMkernel[0]**** [IOBluetoothHostControllerUSBTransport][ClearFeatureInterruptEndpointHalt] -- successfully posting another read for the mInt0InterruptPipe -- this = 0xffffff80460dd800
9/5/15 9:31:32.000 AMkernel[0]**** [IOBluetoothHostControllerUSBTransport][InterruptReadHandler] -- Received kIOUSBPipeStalled error - retrying: 1
9/5/15 9:31:32.301 AMcom.apple.backupd[2385]Copied 8 items (383.8 MB) from volume Midgard. Linked 15.
9/5/15 9:31:33.000 AMkernel[0]USBF:    23428.392    The IOUSBFamily is having trouble enumerating a USB device that has been plugged in.  It will keep retrying.  (Port 1 of Hub at 0x21000000)
9/5/15 9:31:34.000 AMkernel[0]USBF:    23428.692    The IOUSBFamily was not able to enumerate a device.
9/5/15 9:31:34.201 AMcom.apple.backupd[2385]Backup canceled.
9/5/15 9:31:34.274 AMmdworker[2712](ImportBailout.Error:1325) Asked to exit for Diskarb
9/5/15 9:31:34.275 AMmdworker[2739](ImportBailout.Error:1325) Asked to exit for Diskarb
9/5/15 9:31:34.275 AMmdworker[2724](ImportBailout.Error:1325) Asked to exit for Diskarb
9/5/15 9:31:34.274 AMmdworker[2719](ImportBailout.Error:1325) Asked to exit for Diskarb
9/5/15 9:31:34.277 AMmdworker[2725](ImportBailout.Error:1325) Asked to exit for Diskarb
9/5/15 9:31:34.277 AMmdworker[2732](ImportBailout.Error:1325) Asked to exit for Diskarb
9/5/15 9:31:34.281 AMmdworker[2757](ImportBailout.Error:1325) Asked to exit for Diskarb
9/5/15 9:31:34.283 AMmdworker[2740](ImportBailout.Error:1325) Asked to exit for Diskarb
9/5/15 9:31:34.000 AMkernel[0][[0xffffff805a9ab000]  OpCode 0x2012 (LE Remove Device From White List) from: blued (85)  Synchronous  status: 0x00 (kIOReturnSuccess) state: 2 (BUSY) timeout: 6543] Bluetooth warning: An HCI Req timeout occurred.
9/5/15 9:31:35.000 AMkernel[0]hfs: unmount initiated on Time Machine Backups on device disk5s2
9/5/15 9:31:36.801 AMphotolibraryd[418]BUG in libdispatch client: kevent[EVFILT_VNODE] delete: "No such file or directory" - 0x2
9/5/15 9:31:36.801 AMfilecoordinationd[316]BUG in libdispatch client: kevent[EVFILT_VNODE] delete: "No such file or directory" - 0x2
9/5/15 9:31:36.862 AMcom.apple.backupd[2385]Ejected Time Machine disk image: /Volumes/Andromeda Backup/Mac Pro.sparsebundle
9/5/15 9:31:36.000 AMkernel[0]AFP_VFS afpfs_unmount: /Volumes/Andromeda Backup, flags 0, pid 2769
9/5/15 9:31:37.000 AMkernel[0]ASP_TCP Disconnect: triggering reconnect by bumping reconnTrigger from curr value 0 on so 0xffffff803ea89b88
9/5/15 9:31:37.000 AMkernel[0]ASP_TCP Detach: Reply queue not empty?
9/5/15 9:31:37.832 AMcom.apple.backupd[2385]Ejected Time Machine network volume.
9/5/15 9:31:41.000 AMkernel[0][[0xffffff805a9ab000]  OpCode 0x200D (LE Create Connection) from: blued (85)  Synchronous  status: 0x00 (kIOReturnSuccess) state: 2 (BUSY) timeout: 6543] Bluetooth warning: An HCI Req timeout occurred.
9/5/15 9:31:42.000 AMkernel[0]**** [IOBluetoothHostControllerUSBTransport][ClearFeatureInterruptEndpointHalt] -- successfully posting another read for the mInt0InterruptPipe -- this = 0xffffff80460dd800
9/5/15 9:31:44.000 AMkernel[0]**** [IOBluetoothHostControllerUSBTransport][InterruptReadHandler] -- Received kIOUSBPipeStalled error - retrying: 1
9/5/15 9:31:52.000 AMkernel[0][[0xffffff805ad33000]  OpCode 0x2014 (LE Set Host Channel Classification) from: blued (85)  Synchronous  status: 0x00 (kIOReturnSuccess) state: 2 (BUSY) timeout: 6543] Bluetooth warning: An HCI Req timeout occurred.
9/5/15 9:31:54.000 AMkernel[0]USBF:    23449.404    The IOUSBFamily is having trouble enumerating a USB device that has been plugged in.  It will keep retrying.  (Port 1 of Hub at 0x21000000)
9/5/15 9:31:54.000 AMkernel[0]**** [IOBluetoothHostControllerUSBTransport][ClearFeatureInterruptEndpointHalt] -- successfully posting another read for the mInt0InterruptPipe -- this = 0xffffff80460dd800
9/5/15 9:31:55.000 AMkernel[0]**** [IOBluetoothHostControllerUSBTransport][InterruptReadHandler] -- Received kIOUSBPipeStalled error - retrying: 1
9/5/15 9:31:55.000 AMkernel[0]USBF:    23449.705    The IOUSBFamily was not able to enumerate a device.
9/5/15 9:32:00.000 AMkernel[0]USBF:    23455.409    The IOUSBFamily is having trouble enumerating a USB device that has been plugged in.  It will keep retrying.  (Port 1 of Hub at 0x21000000)
9/5/15 9:32:01.000 AMkernel[0]USBF:    23455.710    The IOUSBFamily was not able to enumerate a device.
9/5/15 9:32:05.000 AMkernel[0][[0xffffff805ad33000]  OpCode 0x200D (LE Create Connection) from: blued (85)  Synchronous  status: 0x00 (kIOReturnSuccess) state: 2 (BUSY) timeout: 6543] Bluetooth warning: An HCI Req timeout occurred.
9/5/15 9:32:05.000 AMkernel[0]**** [IOBluetoothHostControllerUSBTransport][ClearFeatureInterruptEndpointHalt] -- successfully posting another read for the mInt0InterruptPipe -- this = 0xffffff80460dd800
9/5/15 9:32:05.747 AMspindump[549]Saved spin report for MacID version 1.2.2 (2) to /Library/Logs/DiagnosticReports/MacID_2015-09-05-093205_Mac-Pro.spin
9/5/15 9:32:05.000 AMkernel[0]**** [IOBluetoothHostControllerUSBTransport][InterruptReadHandler] -- Received kIOUSBPipeStalled error - retrying: 1
9/5/15 9:32:06.000 AMkernel[0]USBF:    23461.414    The IOUSBFamily is having trouble enumerating a USB device that has been plugged in.  It will keep retrying.  (Port 1 of Hub at 0x21000000)
9/5/15 9:32:07.000 AMkernel[0]USBF:    23461.937    The IOUSBFamily was not able to enumerate a device.
9/5/15 9:32:13.000 AMkernel[0]USBF:    23468.420    The IOUSBFamily is having trouble enumerating a USB device that has been plugged in.  It will keep retrying.  (Port 1 of Hub at 0x21000000)
9/5/15 9:32:14.000 AMkernel[0]USBF:    23468.720    The IOUSBFamily was not able to enumerate a device.
9/5/15 9:32:16.000 AMkernel[0]**** [IOBluetoothHostControllerUSBTransport][ClearFeatureInterruptEndpointHalt] -- successfully posting another read for the mInt0InterruptPipe -- this = 0xffffff80460dd800
9/5/15 9:32:16.000 AMkernel[0]**** [IOBluetoothHostControllerUSBTransport][InterruptReadHandler] -- Received kIOUSBPipeStalled error - retrying: 1
9/5/15 9:32:19.000 AMkernel[0]USBF:    23474.424    The IOUSBFamily is having trouble enumerating a USB device that has been plugged in.  It will keep retrying.  (Port 1 of Hub at 0x21000000)
9/5/15 9:32:20.000 AMkernel[0]USBF:    23474.725    The IOUSBFamily was not able to enumerate a device.
9/5/15 9:32:22.000 AMkernel[0][[0xffffff8051abd000]  OpCode 0x200E (LE Create Connection Cancel) from: blued (85)  Synchronous  status: 0x00 (kIOReturnSuccess) state: 2 (BUSY) timeout: 6543] Bluetooth warning: An HCI Req timeout occurred.
9/5/15 9:32:25.000 AMkernel[0]USBF:    23480.429    The IOUSBFamily is having trouble enumerating a USB device that has been plugged in.  It will keep retrying.  (Port 1 of Hub at 0x21000000)
9/5/15 9:32:26.000 AMkernel[0]USBF:    23480.730    The IOUSBFamily was not able to enumerate a device.
9/5/15 9:32:27.000 AMkernel[0]**** [IOBluetoothHostControllerUSBTransport][ClearFeatureInterruptEndpointHalt] -- successfully posting another read for the mInt0InterruptPipe -- this = 0xffffff80460dd800
9/5/15 9:32:27.000 AMkernel[0]**** [IOBluetoothHostControllerUSBTransport][InterruptReadHandler] -- Received kIOUSBPipeStalled error - retrying: 1
9/5/15 9:32:31.000 AMkernel[0]USBF:    23486.434    The IOUSBFamily is having trouble enumerating a USB device that has been plugged in.  It will keep retrying.  (Port 1 of Hub at 0x21000000)
9/5/15 9:32:32.000 AMkernel[0]USBF:    23487.357    The IOUSBFamily was not able to enumerate a device.
9/5/15 9:32:32.000 AMkernel[0]### ERROR: opCode = 0x0406 (Disconnect) -- send request failed (err=0x0010 (kBluetoothHCIErrorHostTimeout))
9/5/15 9:32:32.000 AMkernel[0][0xffffff804f8d1800][free]()

Mac Pro, OS X Yosemite (10.10.5)

Posted on Sep 5, 2015 10:21 AM

by Cheule,Solvedanswer
Cheule Cheule
Level 1 (68 points)
A:

In the end, it was hardware.  Apple replaced the CPU riser card as well as the I/O back panel (which basically constitutes what a motherboard would be in a older Mac Pro).  No changes to the software at all, no peripheral changes, and now the machine behaves perfectly.

Posted on Dec 5, 2015 10:03 AM

Close
Cheule

Q: USB bus freezing on Mac Pro late 2013

  • All replies
  • Helpful answers

  • by Cheule,

    Cheule Cheule Sep 5, 2015 10:33 AM in response to Cheule
    Level 1 (68 points)
    Sep 5, 2015 10:33 AM in response to Cheule

    I just noticed this in the log:

     

    9/5/15 10:12:03.000 AM kernel[0]: ECC Memory Errors detected on DIMM 3: Data Read (H/A Data Read). (CH 0, BSMA = 0x7:0xcc10010000010090:0x24406eee86:0x35bcc54c0)

    9/5/15 10:12:03.000 AM kernel[0]: ECC Memory Errors detected on DIMM 3: Memory Read (Correctable Memory Read, DQ 59,58,57,56). (CH 0, BSMA = 0x9:0xc8110c4e00800090:0xc900000400401c8c:0x37bffff40)

    9/5/15 10:12:03.000 AM kernel[0]: ECC Memory Errors detected on DIMM 2: Memory Scrubbing (Correctable Patrol Scrub, ECC CB 3,2,1,0). (CH 2, BSMA = 0xb:0xcc008210000800c2:0x90000000000208c:0x22e835640)

    9/5/15 10:19:41.196 AM com.apple.xpc.launchd[1]: (com.apple.imfoundation.IMRemoteURLConnectionAgent) The _DirtyJetsamMemoryLimit key is not available on this platform.

    9/5/15 10:22:03.000 AM kernel[0]: ECC Memory Errors detected on DIMM 3: Data Read (H/A Data Read). (CH 0, BSMA = 0x7:0xcc141b0000010090:0x1406eee86:0x36255e380)

    9/5/15 10:22:03.000 AM kernel[0]: ECC Memory Errors detected on DIMM 3: Memory Read (Correctable Memory Read, DQ 59,58,57,56). (CH 0, BSMA = 0x9:0xc812acce00800090:0xc900000400401c8c:0x37bffff40)

    9/5/15 10:22:03.000 AM kernel[0]: ECC Memory Errors detected on DIMM 2: Memory Scrubbing (Correctable Patrol Scrub, ECC CB 3,2,1,0). (CH 2, BSMA = 0xb:0xcc005650000800c2:0x90000000000208c:0x3734b4e40)

    9/5/15 10:22:03.000 AM kernel[0]: ECC memory error rate threshold exceeded too many times. Disabling error reporting until next restart.

     

    Which worries me.  But I've done several multi-hour tests of the RAM, and it always passes.  Do I have bad RAM? Is that the cause of my USB problems or simply a red herring?

  • by lllaass,

    lllaass lllaass Sep 5, 2015 10:34 AM in response to Cheule
    Level 10 (189,435 points)
    Desktops
    Sep 5, 2015 10:34 AM in response to Cheule

    Try reseating the memory

  • by Cheule,

    Cheule Cheule Sep 5, 2015 11:50 AM in response to lllaass
    Level 1 (68 points)
    Sep 5, 2015 11:50 AM in response to lllaass

    That's a great suggestion, and one I've already tried twice.  The first time, I simply pulled it out, blew air on the sockets, reseated the DIMMs firmly.  The second time I even juggled them around, I.e. put DIMM 1 in DIMM 3's sockets etc.  Just to see if it would make any difference.

     

    I think the ECC memory errors in the log (since correctable) are just a Red Herring.  I mean, I can accept that memory errors could cause a USB freeze, but I'm unable to accept that memory problems would ONLY cause USB freezes.  The system is otherwise stable.  I've never had a kernel panic in 2 years.  And once the USB freezes, my BT trackpad still functions, so I'm able to properly shut down from the OS menus.  Just seems very targeted. I don't believe bad RAM would be so targeted at one system.

  • by lllaass,

    lllaass lllaass Sep 5, 2015 12:41 PM in response to Cheule
    Level 10 (189,435 points)
    Desktops
    Sep 5, 2015 12:41 PM in response to Cheule

    Try rearrranging the memory. It could be that there is a memory problem that is not corrected and since it is also the same bit the same data) USB info) could always be loaded in the same place.

    If you open System Profiler

    OS X: About System Information and System Profiler - Apple Support

    and look under memory it will say OK if it found not correctable errors. The at info is generated when you open Profiler so you have to open Profiler each time to get a new snapshot.

    ECC errors do not get better, just worse

     

    Yu can try a fresh instal of Yosemite and only restore data. Reinstall apps and other things

  • by Cheule,

    Cheule Cheule Sep 5, 2015 1:04 PM in response to lllaass
    Level 1 (68 points)
    Sep 5, 2015 1:04 PM in response to lllaass

    These are all good suggestions.

     

    At this moment, system profiler states that all three DIMMs (12GB total) are "Status: OK."  Additionally, every time I've attempted to run Apple Diagnostics (D on start), the system checked out OK.  Also, I've installed Memtest, the command line tool.  I've booted into Single User Mode, and run memtest for many hours, always coming up with no errors.

     

    I've run sys diagnostics just now, still says everything fine.  I'll run memtest again in a moment.

     

    The suggestion to install the OS fresh was a good one too.  One that if you read my original thread from almost a year ago, I thought had solved my problem.  But the USB issues came back shortly.  Then I reformatted my drive and tried a fresh install again, and the problem was present the same day.  So I concluded that it had no effect on the issue.

     

    I appreciate your time spent on this issue.

  • by Cheule,Solvedanswer

    Cheule Cheule Dec 5, 2015 10:03 AM in response to Cheule
    Level 1 (68 points)
    Dec 5, 2015 10:03 AM in response to Cheule

    In the end, it was hardware.  Apple replaced the CPU riser card as well as the I/O back panel (which basically constitutes what a motherboard would be in a older Mac Pro).  No changes to the software at all, no peripheral changes, and now the machine behaves perfectly.