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Time Machine stalls, never completes the backup

mangomac

mangomac

macrumors newbie
Original poster
Dec 3, 2023
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2
Long time listener, first time caller.

I haven't seen a post like this so I thought I'd add a new thread. I'm wondering if anyone else has experienced this issue:
  • I had not been using Time Machine on this specific laptop prior to this issue, but I have used Time Machine on other Macs before and am familiar with it
  • Time machine successfully erases, formats, and begins its first backup - understood that the first one takes longer than usual
  • It seems to work through to about 50-60% of the data, then just stalls
    • The application appears to be "in progress" but it never gets past this point
  • Same behavior on both a 4 TB HDD (plenty of space), and currently a 1 TB SSD (should be plenty of space)
    • My internal drive is 746.53 GB full - I also don't need a lot of historical snapshots
  • Context:
    • I used to have Acronis Cyber Protect installed - that's completely removed, no other anti-virus installed right now
    • I have music production software and licensing software such as Waves, Antares, Ominsphere, Ableton, iLok - curious if the licensing checks are blocking something
      • There hasn't been any issue with this same software on other Macs, though
    • "Auto update" is turned off; I trigger it manually but it does the same thing either way
    • I've excluded large folders and cloud folders (Google Drive etc.) from the backup

01 - Example of stalled progress
1702314822207.png


02 - ETA is inaccurate; it says X minutes remaining all night (8+ hours); Amount copied is inaccurate (66.3% should be ~494 GB)
Screenshot 2023-12-11 at 9.14.37 AM.png


03 - Storage report shows a good chunk of the data copied over; this could be from several attempts that all stalled
Screenshot 2023-12-11 at 10.14.44 AM.png


04 - Laptop Specs
MacOS Venture 13.6.1
2021 14" Apple M1 Macbook Pro
16GB RAM / 1TB SSD
Backup drive: Samsung T5 SSD, formatted APFS GUID Partition Map - plugged directly into laptop (USB-C to USB-C)

Any help or links appreciated. Thank you in advance.
 
MBAir2010

MBAir2010

macrumors 604
May 30, 2018
6,975
6,354
there
I would contact apple support.
both of my macs (Monterey to Sonoma) have no problem time machining on a western digital MNVe blade.
 
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TriciaMacMillan

TriciaMacMillan

macrumors 6502
Nov 10, 2021
251
149
Shortly after the backup fails, enter this in terminal and post any errors from the output:

Code: 
 log show --style syslog --last 30m --predicate 'senderImagePath contains[cd] "TimeMachine"' --info --debug
 
mangomac

mangomac

macrumors newbie
Original poster
Dec 3, 2023
4
2
TriciaMacMillan said:
Shortly after the backup fails, enter this in terminal and post any errors from the output:

Code: 
 log show --style syslog --last 30m --predicate 'senderImagePath contains[cd] "TimeMachine"' --info --debug
Click to expand...

Thank you, here's what I got. Will do some independent research on these codes as well.

Ex. 01
Code: 
2023-12-11 14:30:39.627283-0800  localhost backupd[285]: (TimeMachine) [com.apple.TimeMachine:General] com.apple.backupd.sandbox.xpc: connection invalid
^This code comes back about every minute or so.

Ex. 02
Code: 
2023-12-11 14:36:45.832093-0800  localhost backupd-helper[191]: (TimeMachine) [com.apple.TimeMachine:PowerManagement] TMPowerState: 2

2023-12-11 14:36:45.834413-0800  localhost backupd-helper[191]: (TimeMachine) [com.apple.TimeMachine:General] Skipping scheduled Time Machine backup: Automatic backups disabled

2023-12-11 14:36:45.861788-0800  localhost backupd[285]: (TimeMachine) [com.apple.TimeMachine:LocalThinning] Starting age based thinning of Time Machine local snapshots on disk '/System/Volumes/Update/mnt1'

2023-12-11 14:36:45.863028-0800  localhost backupd[285]: (TimeMachine) [com.apple.TimeMachine:LocalThinning] Starting age based thinning of Time Machine local snapshots on disk '/System/Volumes/Data'

2023-12-11 14:36:45.864717-0800  localhost backupd[285]: (TimeMachine) [com.apple.TimeMachine:General] Failed to wait for snapshot deletion to complete on disk '/System/Volumes/Update/mnt1', error: Error Domain=NSPOSIXErrorDomain Code=1 "Operation not permitted"

2023-12-11 14:36:45.875397-0800  localhost backupd[285]: (TimeMachine) [com.apple.TimeMachine:General] com.apple.backupd.xpc: connection invalid
These appeared all together at 14:36, then more of the first code.


Ex. 03
Code: 
2023-12-11 14:54:37.698649-0800  localhost backupd-helper[191]: (TimeMachine) [com.apple.TimeMachine:BackupScheduling] Running for notifyd event com.apple.mobile.keybagd.lock_status

2023-12-11 14:54:37.723578-0800  localhost backupd-helper[191]: (TimeMachine) [com.apple.TimeMachine:PowerManagement] TMPowerState: 2

2023-12-11 14:54:37.723587-0800  localhost backupd-helper[191]: (TimeMachine) [com.apple.TimeMachine:BackupScheduling] Triggered for screen unlock!

2023-12-11 14:54:39.862638-0800  localhost backupd[285]: (TimeMachine) [com.apple.TimeMachine:General] com.apple.backupd.sandbox.xpc: connection invalid

2023-12-11 14:54:47.702518-0800  localhost backupd-helper[191]: (TimeMachine) [com.apple.TimeMachine:BackupScheduling] Running for notifyd event com.apple.mobile.keybagd.lock_status

2023-12-11 14:54:47.704757-0800  localhost backupd-helper[191]: (TimeMachine) [com.apple.TimeMachine:PowerManagement] TMPowerState: 2

2023-12-11 14:54:47.704764-0800  localhost backupd-helper[191]: (TimeMachine) [com.apple.TimeMachine:BackupScheduling] Triggered for screen unlock!

2023-12-11 14:54:47.705564-0800  localhost backupd-helper[191]: (TimeMachine) [com.apple.TimeMachine:BackupScheduling] Running for notifyd event com.apple.mobile.keybagd.lock_status

2023-12-11 14:54:47.706203-0800  localhost backupd-helper[191]: (TimeMachine) [com.apple.TimeMachine:PowerManagement] TMPowerState: 2

2023-12-11 14:54:47.706208-0800  localhost backupd-helper[191]: (TimeMachine) [com.apple.TimeMachine:BackupScheduling] Triggered for screen unlock!

2023-12-11 14:54:47.706794-0800  localhost backupd-helper[191]: (TimeMachine) [com.apple.TimeMachine:BackupScheduling] Running for notifyd event com.apple.mobile.keybagd.lock_status

2023-12-11 14:54:47.709592-0800  localhost backupd-helper[191]: (TimeMachine) [com.apple.TimeMachine:PowerManagement] TMPowerState: 2

2023-12-11 14:54:47.709598-0800  localhost backupd-helper[191]: (TimeMachine) [com.apple.TimeMachine:BackupScheduling] Triggered for screen unlock!
These appeared as a block, then more of the first code.

Ex. 04
Code: 
2023-12-11 14:57:18.284274-0800  localhost backupd-helper[191]: (TimeMachine) [com.apple.TimeMachine:BackupScheduling] Running for notifyd event com.apple.mobile.keybagd.lock_status

2023-12-11 14:57:18.285446-0800  localhost backupd-helper[191]: (TimeMachine) [com.apple.TimeMachine:PowerManagement] TMPowerState: 2

2023-12-11 14:57:18.285459-0800  localhost backupd-helper[191]: (TimeMachine) [com.apple.TimeMachine:BackupScheduling] Triggered for screen unlock!

2023-12-11 14:57:18.297169-0800  localhost backupd-helper[191]: (TimeMachine) [com.apple.TimeMachine:BackupScheduling] Running for notifyd event com.apple.mobile.keybagd.lock_status

2023-12-11 14:57:18.297248-0800  localhost backupd-helper[191]: (TimeMachine) [com.apple.TimeMachine:PowerManagement] TMPowerState: 2

2023-12-11 14:57:18.297254-0800  localhost backupd-helper[191]: (TimeMachine) [com.apple.TimeMachine:BackupScheduling] Triggered for screen unlock!

2023-12-11 14:57:18.420677-0800  localhost backupd-helper[191]: (TimeMachine) [com.apple.TimeMachine:BackupScheduling] Running for notifyd event com.apple.mobile.keybagd.lock_status

2023-12-11 14:57:18.420852-0800  localhost backupd-helper[191]: (TimeMachine) [com.apple.TimeMachine:PowerManagement] TMPowerState: 2

2023-12-11 14:57:18.420864-0800  localhost backupd-helper[191]: (TimeMachine) [com.apple.TimeMachine:BackupScheduling] Triggered for screen unlock!
Same here, then more of the first code.
 
Last edited:
mangomac

mangomac

macrumors newbie
Original poster
Dec 3, 2023
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2
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mangomac

mangomac

macrumors newbie
Original poster
Dec 3, 2023
4
2
jagooch said:
Did you ever figure out what was wrong?
Click to expand...

I didn't have time to diagnose it further but yes, as of today, I am successfully backing up without issue.

I installed a few macOS updates and I'm currently running Ventura 13.6.6. My SSD is formatted as APFS GUID Partition Map.

I am not sure what ended up fixing it.
 
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