swh:1:snp:49cd9498d6cccc5e78252c27dcb645bcf7bf0c91
- v6.1-rc6
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- v5.12
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- v5.11
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- v5.1
- v5.0-rc8
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- v4.1
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- v3.10
- v3.1-rc9
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- v3.1-rc7
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- v3.1-rc5
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- v3.1
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- v3.0-rc6
- v3.0-rc5
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- v3.0
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- v2.6.39
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- v2.6.38
- v2.6.37-rc8
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- v2.6.37
- v2.6.36-rc8
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- v2.6.31-rc9
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- v2.6.31
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- v2.6.12
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Tip revision: 1ea6b8f48918282bdca0b32a34095504ee65bab5 authored by Linus Torvalds on 08 November 2011, 00:16:02 UTC
Linux 3.2-rc1
Linux 3.2-rc1
Tip revision: 1ea6b8f
Kconfig.debug
menu "Kernel hacking"
source "lib/Kconfig.debug"
config DEBUG_RODATA
bool "Write protect kernel read-only data structures"
depends on DEBUG_KERNEL
help
Mark the kernel read-only data as write-protected in the pagetables,
in order to catch accidental (and incorrect) writes to such const
data. This option may have a slight performance impact because a
portion of the kernel code won't be covered by a TLB anymore.
If in doubt, say "N".
config DEBUG_STRICT_USER_COPY_CHECKS
bool "Strict copy size checks"
depends on DEBUG_KERNEL && !TRACE_BRANCH_PROFILING
---help---
Enabling this option turns a certain set of sanity checks for user
copy operations into compile time failures.
The copy_from_user() etc checks are there to help test if there
are sufficient security checks on the length argument of
the copy operation, by having gcc prove that the argument is
within bounds.
If unsure, or if you run an older (pre 4.4) gcc, say N.
endmenu