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kristof461

macrumors regular
Original poster
Oct 4, 2023
209
69
I started to have some kernel panics after 18.0.1 update. First one few days ago and today another one. Apple told me to visit authorized service but on the other hand I saw on Reddit that someone was told that Apple is aware and this is known issue with iPhone 16 line. Did you experience any kernel problems?
 
No kernel panics at all on my 16 Pro Max on 18.0.1. Can you post some of them here to see if there's anything specific showing?
 
Second one looks exactly the same
 

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No kernel panics at all on my 16 Pro Max on 18.0.1. Can you post some of them here to see if there's anything specific showing?
Check your settings because kernel restarts your phone but back to everything you had opened on your phone so you can’t even notice that. Yes it asks about password not Face ID but still you don’t have to see that.
 
I’ve never had an issue with iOS 18. Just after 18.0.1. But still even in your case there is possibility that it can be hardware issue

For one single isolated panic I doubt it. I've had similar ones over the past years. As long as they don't repeat regularly, I'm good.
 
Check my previous post. https://forums.macrumors.com/threads/sudden-reboot-during-standby-with-panic-log-file.2440117/

It looks like a widespread problem.

I did a lot a research and found that many users are reporting this.

I hope that the incoming iOS 18.1will address the problem, a wrote to macrumors staff also to point out this issue.
To be honest I didn’t find so many reports. Someone one Reddit said that got info from Apple that is is soft issue. I hope so.
 
I called Apple once again and they told me that this is clearly software issue not hardware. Still they suggest to visit them. I am just wondering what they can do what I can’t. Reinstall system of dfu clean install? Just curious if it is worth to „waste” my time to go there. What do you think?
Edit. I asked ChatGPT and he said that this kernel panic is related to WiFi so maybe it is hardware issue. Even if hardware diagnosis didnt say anything.
 
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I called Apple once again and they told me that this is clearly software issue not hardware. Still they suggest to visit them. I am just wondering what they can do what I can’t. Reinstall system of dfu clean install? Just curious if it is worth to „waste” my time to go there. What do you think?
Edit. I asked ChatGPT and he said that this kernel panic is related to WiFi so maybe it is hardware issue. Even if hardware diagnosis didnt say anything.

don't trust chatGPT or automated Panic Analyzer software, they're not fully reliable in my opinion.

My advice is to wait until October 28, when iOS 18.1 will likely be released, and perform a DFU restore, installing each app individually without importing any backups.

Both I and a friend of mine who has the same issue spoke with Apple engineers during a call where they performed a remote diagnostic, and the engineers told both of us that they are aware of the problem.

It’s strange that you haven’t found anything online, as there are numerous reports.
 
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don't trust chatGPT or automated Panic Analyzer software, they're not fully reliable in my opinion.

My advice is to wait until October 28, when iOS 18.1 will likely be released, and perform a DFU restore, installing each app individually without importing any backups.

Both I and a friend of mine who has the same issue spoke with Apple engineers during a call where they performed a remote diagnostic, and the engineers told both of us that they are aware of the problem.

It’s strange that you haven’t found anything online, as there are numerous reports.
Polish apple support doesn't know anything about this issue. I can perform DFU restore but on the other hand that's Apple's issue and I won't accept solution like this. In the past sometimes I set my iPhone as new but this time I used usb c to usb c transfer and I really understand people who don't want to do anything complicated. We shouldn't accept. Apple and other companies have to aware and develop and then release good reliable and completed softwares

I found just few threads about this topic and there are maybe only 3/4 people talking about it. So it doesn’t look like a wide spread discussion
 
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Setting it up as new won't help, neither will DFU restore or any of that. If it's a bug, it will be fixed with an upgrade. If it's a hardware defect, well then it's that. But going to the store won't help: just wait for 18.1 and see how it goes.
 
Setting it up as new won't help, neither will DFU restore or any of that. If it's a bug, it will be fixed with an upgrade. If it's a hardware defect, well then it's that. But going to the store won't help: just wait for 18.1 and see how it goes.
There is possibility that something was installed not properly on my iPhone. On the other hand under one thread on Reddit people with exchanged iPhones 16 still have the same issue.
Two restarts in one week isn’t that big problem and as you said. I will wait probably.
 
There is possibility that something was installed not properly on my iPhone. On the other hand under one thread on Reddit people with exchanged iPhones 16 still have the same issue.
Two restarts in one week isn’t that big problem and as you said. I will wait probably.

No, it's very unlikely if not almost impossible that iOS wasn't installed properly. This was also confirmed by Apple several times. It's just some hocus pocus that some people like to do and they feel better after a DFU restore, but in the end it's really not worth it.

And an app shouldn't be able to trigger the issue, as it's related the wifi kernel module.
 
No, it's very unlikely if not almost impossible that iOS wasn't installed properly. This was also confirmed by Apple several times. It's just some hocus pocus that some people like to do and they feel better after a DFU restore, but in the end it's really not worth it.

And an app shouldn't be able to trigger the issue, as it's related the wifi kernel module.
I am with you about some hocus pocus tricks. Sometimes they are like a placebo effect. On the other hand some issues can be easily fixed with a restore. Still it is just a software. But I am not ok with „do dfu clean instal install apps one by one” that’s too much. If there is a problem it is not my responsibility to be a tester. Apple won’t pay or even won’t give me a discount.
For now I will check the second kernel panic with ChatGPT. I thought I’ve done it but I haven’t. Plus probably I will cancel tomorrow’s appointment. I guess authorized service will perform something like dfu and start to say about „set as new” crappy solution. I know how it works ;) that’s why I will wait for new update. Before that I reset network settings. Maybe it will help if WiFi is the problem.
 
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i ask to gpt the origin of the issue:
Possible Causes

This kind of issue could indicate either:

1. Software Issue: A bug in iOS related to the PCIe communication with the wireless hardware. Since you’re on iOS 18.0.1, this could potentially be resolved in a future software update (like iOS 18.1).
2. Hardware Issue: If this problem is persistent, it could be tied to a hardware malfunction involving the Wi-Fi or PCIe controller on the device, which might require a physical checkup.

Next Steps

• If this is a one-time occurrence, a software glitch might be responsible, and updating to the next version (iOS 18.1) could resolve it.
• If the issue keeps happening frequently, you should consider contacting Apple Support for a diagnostic, as this might point to a hardware failure.

The i submit the log of a friend that has my same issue, same iphone model and the answer is the same. I asked how is possible that 2 new devices shows this issue:

Given that both iPhones are new and are experiencing similar errors related to the PCIe interface and Wi-Fi module, this could suggest a widespread issue, either in software or hardware.



Here’s a breakdown of the likelihood for both possibilities:



1. Software Issue (More Likely)



iOS 18.0.1 is still a relatively new release, and it’s possible that a bug affecting the Wi-Fi or PCIe interface is present. Since multiple devices are showing the same issue, it increases the likelihood of a software-related bug.

• Apple engineers have been known to acknowledge such issues in newer software versions, and as mentioned earlier, this might be resolved with iOS 18.1 or a subsequent update.

• Panic logs related to networking interfaces (such as WLAN) can sometimes be triggered by incorrect handling of hardware in the operating system.



2. Hardware Issue (Less Likely but Possible)



• If this were an isolated case, it would lean more towards a potential hardware defect (e.g., faulty Wi-Fi module, issues with the PCIe connection on the motherboard).

• Since both devices are exhibiting similar behavior, it could suggest a flaw in a specific hardware batch, but it’s less likely unless Apple confirms a defective component.



Recommended Actions:



Wait for iOS 18.1: It’s worth waiting for the upgrade
 
My phone (16 PM) also reset itself once and I got a panic file but it looks a bit different than yours, it does not concern WiFi or PCI but the frame size?

"panicString" : "panic(cpu 1 caller 0xfffffff0356ff684): AOP PREFETCH ABORT pc=0x000000000237413c Exception class=0x20 (Instruction Abort from a lower Exception level), IL=1, iss=0x7 far=0x000000000237413c - intercompartment_server(7) - \nuser handlers:\n\nRTKit: RTKit-2758.2.1.release - Client: iphone17aop:RELEASE:AppleSPUFirmwareBuilder-632.0.7~17199\n!UUID: 64a35380-b128-349a-8ce1-47c28918f72d\nASLR slide: 0x0000000000257000\nTime: 0x0000031792895878\n\nFaulting task stack frame:\nWrong frame size for ARMv8. Got 840 bytes, expected 828\n pc=0x000000000237413c Exception class=0x20 (Instruction Abort from a lower Exception level), IL=1, iss=0x7
 
It's happened to my iPhone 16 (NOT pro) twice so far. I'm not going to post the panic logs, but it's basically the same as the ones above, so it's not restricted to the iPhone pros as the report suggests.
 
Is 18.0.1 a worse release than 18.0 for a lot of people?

Haven’t updated but it’s sounding like it :/
 
Today during night I had another kernel panic. Two weeks after previous one but I am still on 18.0.1
 
Today during night I had another kernel panic. Two weeks after previous one but I am still on 18.0.1

Did you notice because the phone asked you for the passcode when you used it after waking up?

Upgrade to iOS 18.1, they stated that the issue has been fixed.
 
Did you notice because the phone asked you for the passcode when you used it after waking up?

Upgrade to iOS 18.1, they stated that the issue has been fixed.
Exactly. Same as last two times I was asked about the password with because phone has restarted
 
iPhone 16PM, now on 18.1, and there are no panics in my Analytics logs. I’ve not noticed any unintended restarts since receiving the phone.
 
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