Print registers on an arm64 spinlock data abort
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Authored by andrew on May 23 2023, 9:30 AM.

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emaste

imp

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kib
manu

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arm64

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rG0731b0a9f1f9: Print registers on an arm64 spinlock data abort

Summary

When checking if the spinlock count is correct in a data abort we can
panic without printing the registers. These are useful to debug the
abort, e.g. by giving the fault address register.

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rG FreeBSD src repository

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Event Timeline

andrew created this revision.May 23 2023, 9:30 AM

Herald added a reviewer: manu. · View Herald TranscriptMay 23 2023, 9:30 AM

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

andrew requested review of this revision.May 23 2023, 9:30 AM

Harbormaster completed remote builds in B51631: Diff 122273.May 23 2023, 9:30 AM

kib accepted this revision.May 23 2023, 9:37 AM

kib added inline comments.

sys/arm64/arm64/trap.c
332	print the spinlock nest counter as well, perhaps?

This revision is now accepted and ready to land.May 23 2023, 9:37 AM

Closed by commit rG0731b0a9f1f9: Print registers on an arm64 spinlock data abort (authored by andrew). · Explain WhyMay 24 2023, 4:20 PM

This revision was automatically updated to reflect the committed changes.

andrew added a commit: rG0731b0a9f1f9: Print registers on an arm64 spinlock data abort.

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sys/

arm64/

trap.c

10 lines

Diff 122379

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