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Differential D52342

arm64: enable bloating kernel with ext errors strings
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Authored by emaste on Sep 2 2025, 4:45 PM.
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imp
kib
siva

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andrew
manu
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arm64
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rG3296fda0c309: arm64: enable bloating kernel with ext errors strings
Summary
Chase commit 8e8d3068dcbe ("amd64 GENERIC: enable bloating kernel with
ext errors strings") from amd64.  In general we would like to keep
GENERIC kernel options in sync between the Tier-1 architectures.

Ref: rG:8e8d3068dcbe

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rG FreeBSD src repository
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Event Timeline

emaste created this revision.Sep 2 2025, 4:45 PM
Herald added a reviewer: andrew. · View Herald TranscriptSep 2 2025, 4:45 PM
Herald added a reviewer: andrew. · View Herald Transcript
Herald added a reviewer: manu. · View Herald Transcript
emaste requested review of this revision.Sep 2 2025, 4:45 PM
emaste added subscribers: asomers, kib, siva.
emaste added a comment.Sep 2 2025, 5:58 PM

As an aside, I compared non-device-specific options in sys/amd64/conf/GENERIC and sys/arm64/conf/std.arm64. Aside from this BLOAT_KERNEL_WITH_EXTERR the following differences exist:

arm64 only

  • CC_CUBIC
  • VFP
  • LINUX_BOOT_ABI
  • PERTHREAD_SSP
  • Commented-out sanitizer support e.g. KCOV

amd64 only

  • COMPAT_FREEBSD4 through COMPAT_FREEBSD10
  • NETGDB
  • IOMMU
  • COMPAT_LINUXKPI
andrew accepted this revision.Sep 2 2025, 7:23 PM
In D52342#1195108, @emaste wrote:

As an aside, I compared non-device-specific options in sys/amd64/conf/GENERIC and sys/arm64/conf/std.arm64. Aside from this BLOAT_KERNEL_WITH_EXTERR the following differences exist:

arm64 only

  • CC_CUBIC
  • VFP
  • LINUX_BOOT_ABI
  • PERTHREAD_SSP

These 3 are arm64 specific

  • Commented-out sanitizer support e.g. KCOV

amd64 only

  • COMPAT_FREEBSD4 through COMPAT_FREEBSD10

No need for these as neither arm64 nor armv7 were supported until 11.0 and 12.0 respectively.

  • NETGDB
  • IOMMU

IOMMU needs work before we can enable it by default on arm64.

  • COMPAT_LINUXKPI
This revision is now accepted and ready to land.Sep 2 2025, 7:23 PM
Closed by commit rG3296fda0c309: arm64: enable bloating kernel with ext errors strings (authored by emaste). · Explain WhySep 2 2025, 7:31 PM
This revision was automatically updated to reflect the committed changes.
emaste added a commit: rG3296fda0c309: arm64: enable bloating kernel with ext errors strings.
Herald added a subscriber: imp. · View Herald TranscriptSep 2 2025, 7:31 PM

Revision Contents
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PathSize
sys/
arm64/
conf/
1 line

Diff 161390

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sys/arm64/conf/std.arm64

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