Re: Panic

From	David <BD@invalid.email>
Newsgroups	uk.comp.sys.mac
Subject	Re: Panic
Date	2025-02-16 19:40 +0000
Message-ID	<m1et8iF5v3qU2@mid.individual.net> (permalink)
References	<m1erjiF63suU1@mid.individual.net>

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On 16/02/2025 19:11, TimS wrote:
> Had a restart during the night, apparently a panic:
> 
> {"roots_installed":0,"caused_by":"bridgeos","macos_version":"Mac OS X 14.7.2
> (23H311)","os_version":"Bridge OS 9.2
> (22P2093)","macos_system_state":"running","incident_id":"93C0F739-D5AA-44DF-8
> 4DD-1B212E24D149","bridgeos_roots_installed":0,"bug_type":"210","timestamp":"
> 2025-02-16 02:06:36.00 +0000"}
> {
>    "build" : "Bridge OS 9.2 (22P2093)",
>    "product" : "iBridge2,5",
>    "socId" : "8012",
>    "socRevision" : "10",
>    "incident" : "93C0F739-D5AA-44DF-84DD-1B212E24D149",
>    "crashReporterKey" : "c0dec0dec0dec0dec0dec0dec0dec0dec0de0001",
>    "kernel" : "Darwin Kernel Version 24.2.0: Fri Nov 15 17:52:09 PST 2024;
> root:xnu-11215.61.3~3\/RELEASE_ARM64_T8010",
>    "date" : "2025-02-16 02:06:36.25 +0000",
>    "panicString" : "panic(cpu 0 caller 0xfffffff00c783ce0): SEP Panic:
> :SEPD\/intr: 0x0000b702 0x00028a0b 0x000096cd 0x00004a6d 0x00000000 0x00000000
> 0x00000000 0x00000000 [rngi]\n\nPanic app vers: 2772.60.32\nPanic app UUID:
> EE047CAA-D981-3F78-A606-4603BA710C63\nShared cache vers: 2772.60.32\nShared
> cache UUID: 9F98912F-5A70-3D5C-ACDE-64D578C7CFD6\nRoot task tag:
> (root@zkcpm.p1l.plx.sd.apple.com)\nRoot task build time: Nov 15 2024
> 17:57:05\nRoot task vers: AppleSEPOS-2772.60.32\nRoot task UUID:
> 623C4B68-BD95-3C6C-8899-4965A2FBD2DF\n\nFirmware type: UNKNOWN SEPOS\nSEP
> state: 6\nPM state: 2\nBoot state: 32\nMailbox status:\nIDLE_STATUS:
> 0x00000068\nMAILBOX_SET: 0x00000110\nMAILBOX_CLR: 0x00000110\nINBOX_CTRL:
> 0x00021101\nOUTBOX_CTRL: 0x00020001\n\nMailbox entries:\nUnavailable\nMailbox
> queue pointers: 13\/13 -1\/-1 -1\/-1 -1\/-1 -1\/-1 -1\/-1 -1\/-1 -1\/-1 23\/23
> -1\/-1 8\/8 -1\/-1 -1\/-1 -1\/-1 -1\/-1 -1\/-1 1\/1 -1\/-1 3\/3 17\/17 13\/13
> -1\/-1 -1\/-1 -1\/-1 26\/26 -1\/-1 -1\/-1 -1\/-1 -1\/-1 -1\/-1 -1\/-1
> -1\/-1\nTZ0 explicitly set 1 size 0xed8000\n\nDebugger message: panic\nMemory
> ID: 0xff\nOS release type: User\nOS version: 22P2093\nmacOS version:
> 23H311\nKernel version: Darwin Kernel Version 24.2.0: Fri Nov 15 17:52:09 PST
> 2024;
> 
> ... and a lot more. Any of it mean anything to anyone? Any more it that it
> might be useful to post (there's 136k of stuff in total, so BBEdit says)?
> Anything I could search for in BBedit that might be indicative?
> 
> This is a 2018 Intel Mini.

That panic report suggests a **BridgeOS-related kernel panic**. BridgeOS 
runs on the T2 security chip in Intel Macs, handling things like Touch 
ID, Secure Boot, and SSD encryption. Crashes involving BridgeOS can 
sometimes cause spontaneous reboots, especially on Macs with T2 chips 
(like the 2018 Mac mini).

### **Possible Causes**
1. **BridgeOS Bug or Corruption**
    - The panic mentions *Bridge OS 9.2 (22P2093)*, which is likely an 
update from macOS Sonoma (14.x).
    - A corrupted BridgeOS update can sometimes cause recurring crashes.

2. **T2 Chip Issues**
    - If the T2 firmware or SEP (Secure Enclave Processor) has problems, 
it may panic and reboot the Mac.
    - "SEP Panic" suggests an issue with the Secure Enclave.

3. **Hardware Issues**
    - If the Mac has a failing SSD (since T2 is involved in SSD 
encryption), it could trigger panics.
    - Failing power delivery or overheating components can also cause 
instability.

4. **macOS Sonoma 14.7.2 Issues**
    - If the system recently updated, the update itself might be the cause.
    - You could check the system logs in Console.app to see if there 
were update failures.

---

### **What to Check Next**
1. **Run Apple Diagnostics**
    - Restart and hold **D** to run Apple Diagnostics.
    - See if it reports any hardware issues.

2. **Reset SMC & NVRAM**
    - Since the Mac mini has a T2 chip, reset the SMC:
      1. Shut down the Mac.
      2. Unplug the power for 30 seconds.
      3. Plug it back in and wait 5 seconds before turning it on.
    - Reset NVRAM:
      1. Restart and immediately hold **Option + Command + P + R** for 
~20 seconds.

3. **Check for Firmware Updates**
    - Open **System Settings → General → Software Update** and ensure no 
updates are pending.

4. **Look for Repeating Panic Messages**
    - Open **BBEdit** (or Console.app) and search for:
      - `"panicString"` → This shows the root cause.
      - `"BridgeOS"` or `"SEPD"` → If repeated, it's likely a T2 issue.

5. **Boot into Safe Mode**
    - Restart and hold **Shift** until you see the login screen.
    - If the issue doesn't happen in Safe Mode, it could be a software 
conflict.

6. **Reinstall macOS (Without Erasing Data)**
    - Boot into **macOS Recovery** (Cmd+R on startup).
    - Reinstall macOS over the existing installation.

---

### **If the Panics Continue…**
- Consider **disabling Secure Boot** temporarily:
   - Boot into macOS Recovery.
   - Open **Startup Security Utility** and set it to **"No Security"**.
   - Restart and see if the panics persist.

- If **hardware diagnostics show errors**, you might need Apple support 
or a T2 chip replacement.

Does the Mac mini keep restarting randomly, or was it just this one time?

Thread

Panic TimS <tim@streater.me.uk> - 2025-02-16 19:11 +0000
  Re: Panic David <BD@invalid.email> - 2025-02-16 19:40 +0000
    Re: Panic TimS <tim@streater.me.uk> - 2025-02-16 22:04 +0000
      Re: Panic David <BD@invalid.email> - 2025-02-16 23:31 +0000
      Re: Panic Alan B <alanrichardbarker@gmail.com.invalid> - 2025-02-17 07:07 +0000
        Re: Panic Jaimie Vandenbergh <jaimie@usually.sessile.org> - 2025-02-17 10:31 +0000
          Re: Panic Theo <theom+news@chiark.greenend.org.uk> - 2025-02-17 11:11 +0000
            Re: Panic TimS <tim@streater.me.uk> - 2025-02-17 17:01 +0000
              Re: Panic Theo <theom+news@chiark.greenend.org.uk> - 2025-02-18 10:54 +0000
                Re: Panic TimS <tim@streater.me.uk> - 2025-02-18 22:17 +0000
                Re: Panic David <BD@changed.today> - 2025-02-18 22:27 +0000
          Re: Panic Alan B <alanrichardbarker@gmail.com.invalid> - 2025-02-17 19:17 +0000
        Re: Panic TimS <tim@streater.me.uk> - 2025-02-17 17:03 +0000
          Re: Panic David <BD@invalid.email> - 2025-02-17 18:35 +0000
          Re: Panic Alan B <alanrichardbarker@gmail.com.invalid> - 2025-02-17 19:04 +0000

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