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Fix reset crashkernel output#147

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licliu wants to merge 3 commits intorhkdump:mainfrom
licliu:fix-reset-crashkernel-output
Open

Fix reset crashkernel output#147
licliu wants to merge 3 commits intorhkdump:mainfrom
licliu:fix-reset-crashkernel-output

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@licliu licliu commented Mar 5, 2026

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Summary of Changes

Hello, I'm Gemini Code Assist1! I'm currently reviewing this pull request and will post my feedback shortly. In the meantime, here's a summary to help you and other reviewers quickly get up to speed!

This pull request refines the messaging and logging within the kdump utility scripts. The primary goal is to standardize warning outputs by removing redundant prefixes and centralizing the 'WARNING:' prefix logic within the dwarn function itself. Additionally, it improves the clarity of the reset_crashkernel function's output, providing more informative feedback to the user regarding crashkernel configuration changes and reboot requirements.

Highlights

  • Standardized Warning Output: Removed redundant 'WARNING:' and 'Notice:' prefixes from calls to the dwarn function across various scripts, ensuring a consistent warning message format.
  • Refactored Warning Function: The dwarn function in kdump-logger.sh was modified to explicitly prepend 'WARNING:' to its log messages, centralizing the warning prefix logic.
  • Removed Redundant Alias: The dwarning alias function was removed, streamlining the warning mechanism by consolidating its functionality into dwarn.
  • Improved reset_crashkernel Output: Enhanced the reset_crashkernel function in kdump-lib.sh to provide more precise feedback, including an informational message when no crashkernel update is required and a clearer separation of the reboot prompt.

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Changelog
  • dracut/99earlykdump/early-kdump.sh
    • Removed 'WARNING: ' prefix from a dwarn message related to fadump support.
  • kdump-lib.sh
    • Removed 'Warning: ' prefix from dwarn messages regarding elf32-core-headers and dracut arguments.
    • Removed 'WARNING: ' prefix from dwarn messages concerning fadump parameters and raw dump target warnings.
    • Removed 'Warning: ' prefix from a dwarn message about encrypted devices in the dump path.
    • Modified reset_crashkernel to add an info message when no crashkernel update is needed and to restructure the reboot warning message.
    • Removed 'Notice: ' prefix from dwarn messages related to vmcore creation status.
  • kdump-logger.sh
    • Removed the dwarning alias function and its unset call.
    • Modified the dwarn function to explicitly prepend 'WARNING:' to its log messages.
  • kdumpctl
    • Removed 'Tips: ' prefix from a dwarn message about early kdump initramfs rebuild.
    • Removed 'WARNING: ' prefix from dwarn messages related to backup failures, checksum mismatches, raw dump target opalcore capture, missing SSH keys, and deprecated 'default' option.
  • mkdumprd
    • Removed 'Warning: ' prefix from dwarn messages about insufficient space for vmcore and non-makedumpfile core collectors.
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Code Review

This pull request primarily refactors how warning messages are logged for consistency, by centralizing the "WARNING:" prefix within the dwarn function. This is a good cleanup that improves code maintainability. Additionally, the output logic of the reset_crashkernel function is improved to provide clearer and more accurate feedback to the user. I have one minor suggestion to improve a new log message.

licliu added 3 commits March 5, 2026 14:28
Print informative output when no change is needed. Only show reboot
message when memory requirements are satisfied.

Signed-off-by: Lichen Liu <lichliu@redhat.com>
The dwarning() is not called anywhere; remove it to simplify the code.

Signed-off-by: Lichen Liu <lichliu@redhat.com>
Currently, callers of dwarn() manually prepend prefixes like "WARNING:",
"Warning:", or "Notice:". This leads to inconsistent output and
redundant string management.

Update dwarn() in kdump-logger.sh to automatically include the
"WARNING:" prefix. All existing calls to dwarn() have been updated
to remove manual prefixes, ensuring a consistent log format across
kdumpctl, mkdumprd, and early-kdump.

Signed-off-by: Lichen Liu <lichliu@redhat.com>
@licliu licliu force-pushed the fix-reset-crashkernel-output branch from 31403fa to f17b90e Compare March 5, 2026 06:29
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