On 10/13/22 07:40, Zhiquan Li wrote: > There is already a signal-based ABI to tell userspace about > machine checks. But, SGX does not use that ABI. Today, the > kernel delivers a generic SIGBUS if a machine check occurs when > accessing SGX memory. Userspace can not differentiate that > SIGBUS from <a recoverable machine check error>, I wanted an example here of a SIGBUS that can occur from sources *OTHER* than a recoverable machine check.
