9b4cbaa9c3
If this exception is coming from userspace, send the appropriate SIGBUS to the process. If it's coming from the kernel this is still fatal, but we can give a better panic message. Typical misaligned loads/stores are emulated by the SBI firmware, and require no intervention from our kernel. The notable exception here is misaligned access with atomic instructions. These can generate the exception and panic seen in the PR. With this, we now handle all defined exception types. PR: 266109 MFC after: 1 week Found by: syzkaller Reported by: P1umer <p1umer1337@gmail.com> Differential Revision: https://reviews.freebsd.org/D36876 |
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