iPhone crashing with panic-full dumpes

My iPhone crashes constantly and I see many panic-full entries in Analytics. I've tried to read the file but can't tell what may be causing the crash.

"panicString" : "panic(cpu 2 caller 0xfffffff018433f68): ANS2 Recoverable Panic - assert failed: [15395]:HIX 3 time out with CSTS read failure before FA dump MSP 0 for segIdx 0xc24, nandOp=11 - Timer(11)\nassert failed: [15395]:HIX 3 time out with CSTS read failure before FA dump MSP 0 for segIdx 0xc24, nandOp=11\nRTKit: RTKit_iOS-1827.102.1.release - Client: t8015.release-AppleStorageProcessorANS2-1274.100.6~730~1274.100.6~730\n!UUID: e8346eb6-1b6e-33f3-8fa8-8eca5825c258\nTime: 0x0000000a5c5501a7\n\nFaulting task 11 Call Stack: 0x0000000000011ef0 0x0000000000011a04 0x00000000000118bc 0x0000000000013694 0x0000000000014ab0 0x00000000000149cc 0x000000000009fdb4 0x000000000003ed54 0x000000000002df6c 0x00000000000099b8 000000000000000000\n\nMarin ASC Async error info: \nl2c_err_sts 0x10001bfc00000000, l2c_err_adr 000000000000000000, l2c_err_inf 000000000000000000\nlsu_err_sts 000000000000000000, fed_err_sts 000000000000000000, mmu_err_sts 000000000000000000\n\nMailbox (0): (0)\n Inbox AKF_KIC_INBOX_CTRL = 0x00021101, AKF_KIC_MAILBOX_SET = 0x00001101\n Outbox AKF_AP_OUTBOX_CTRL = 0x00022201, AKF_AP_MAILBOX_SET = 0x00000000\n\n dir endpoint timestamp msg\n ====

iPhone 8, iOS 15

Posted on Aug 10, 2022 9:57 PM

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3 replies

Missy5937

Community Specialist

Aug 12, 2022 5:24 PM in response to agentpink000

Hello agentpink000,

If the iPhone continues to restart as mentioned, then you might want to try restoring so you have a fresh copy of the iOS on your device. It might be a good idea to test the device as new for a while, once restored. This will help you determine if it had something to do with the iOS. If the issue doesn't return until after a backup has been restored, you can assume its unusable data contained in your backup.

How to back up your iPhone, iPad, and iPod touch - Apple Support

Restore your iPhone, iPad, or iPod to factory settings - Apple Support

If you need additional help, speaking with Apple Support is your best option. You can contact them at Get Support.

Best wishes.

Matthew_J5

Community Specialist

Aug 12, 2022 12:02 PM in response to agentpink000

Hi there agentpink000,

Thank you for posting to Apple Support Communities.

We're happy to help. We understand that your iPhone doesn't start up correctly. Are you able to connect it to a computer to see if that helps? See here: If your iPhone won't turn on or is frozen

If you're still having an issue, contact Apple Support: Contact Apple Support

Take care.

agentpink000 Author

Level 1

4 points

Aug 12, 2022 5:16 PM in response to Matthew_J5

The phone starts and works. It just randomly crashes and restarts. After a crash, or potentially multiple crashes in quick succession, I look in Analytics and see panic-full dumps. The content above is the panic failure message in those panic-full dumps.

The crashes happen at random, may happen a few times a day or not happen for a few days. But every time the panic-full dump is the same.

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iPhone crashing with panic-full dumpes