arm64: Raise a SIGILL if we fail reading an insn
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Authored by andrew on Tue, May 6, 5:03 PM.

Details

Reviewers

manu
harry.moulton_arm.com

Group Reviewers

arm64

Summary

When reading an instruction we may fail if another thread is unmapping
a page while the current thread is executing from it. In this case
raise a SIGILL rather than panicing the kernel.

Diff Detail

Repository

rG FreeBSD src repository

Lint

Lint Skipped

Unit

Tests Skipped

Build Status

Buildable 63952
Build 60836: arc lint + arc unit

Event Timeline

andrew created this revision.Tue, May 6, 5:03 PM

Herald added a reviewer: manu. · View Herald TranscriptTue, May 6, 5:03 PM

Herald added subscribers: emaste, imp. · View Herald Transcript

andrew requested review of this revision.Tue, May 6, 5:03 PM

Harbormaster completed remote builds in B63952: Diff 154964.Tue, May 6, 5:03 PM

andrew added a child revision: D50204: arm64: Remove an old workaround.Tue, May 6, 5:03 PM

harry.moulton_arm.com accepted this revision.Fri, May 9, 3:24 PM

This revision is now accepted and ready to land.Fri, May 9, 3:24 PM

Revision Contents
Changeset List

Path

Size

sys/

arm64/

undefined.c

3 lines

Diff 154964

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sys/arm64/arm64/undefined.c

arm64: Raise a SIGILL if we fail reading an insnAcceptedPublicActions