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Kernel crash when LP Security Violation Interrupt enabled

Question asked by Ethan Yang on Sep 13, 2016
Latest reply on Sep 13, 2016 by igorpadykov

Hi,

 

We faced a issue with secvio.c in the caam module.

The “snvs_secvio_install_handler” function used to register call back for interrupt.

Then the LP security violation interrupt was enabled as below.
val = 0x80000000;
writel(val, snvs_base + SNVS_HPSICR);
This causes to crash the driver as soon as a tamper is triggered.

 

Full crash log file is attached.

 

 

Regards,

Ethan

Original Attachment has been moved to: crashlog.txt.zip

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