Kernel crash on hibernate wakeup

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Kernel crash on hibernate wakeup

Postby rameshprusty » Sat Mar 09, 2019 12:55 am

HI,

We have a product which hooks system calls. On mojave when system goes to hibernate mode and if our hooks are enable system crashing with SIP enamble.If i disable SIP then everything working fine.
On hibernate mode OSX writes all the RAM data to a file called speepimage and on wakeup it will read from the data from the file and loads it to RAM. So while are hooks and SIP enabled OSX not able to write to the file while entering to hibernation mode. So when wakeup it reads from the sleepimage file which has old data, then the system crashes due to page fault as this not the update data.

Please let me know if anyone has any idea about the crash on SIP enabled.

Thanks,
Ramesh
rameshprusty
 
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