[El-errata] ELBA-2021-9468 Oracle Linux 8 dtrace bug fix update

Errata Announcements for Oracle Linux el-errata at oss.oracle.com
Thu Sep 30 07:30:34 PDT 2021

Oracle Linux Bug Fix Advisory ELBA-2021-9468


The following updated rpms for Oracle Linux 8 have been uploaded to the Unbreakable Linux Network:



Description of changes:

- Consolidated developent of newly ported features. [Orabug: 33334517]
- Implement argument retrieval for SDT probes. [Orabug: 33072438]
- Introduce 'bpflog' runtime option to request BPF verifier log.
- Implementation improvements for memry copy operations.
- Fix type alignment handling for enums.
- Fix ERROR-in-BEGIN probe handling.
- Transition from variable-length string size to 2-byte string size.
- Fix size of string data in the trace output buffer.
- Fix data size for value copy.
- Add support for strjoin() subroutine.
- Add support for substr() subroutine.

- Consolidated developent of newly ported features. [Orabug: 33037106]
- Implement built-in variables: probeprov, probemod, probefunc, probename.
- Implement built-in variables: caller, stackdepth, ucaller, ustackdepth,
  errno, walltimestamp.  (Eugene Loh)
- Implement actions: stack(), ustack(). (Eugene Loh)
- Implement subroutine: strlen().
- Implement option: -Z (partial). (Eugene Loh)
- Added support for string constants and string values.
- Added support for strings to trace().
- Fixed storage size determination for global and local variables.
- Improved storage layout for global and local variables.
- Mark aggregation actions as non-data recording actions.  (Eugene Loh)
- Load string constant table into the 'strtab' BPF map.
- Load probe description data into the 'probes' BPF map.
- Consolidate all string hash functions into a single hash function.
- Implement variable length integer support.
- Store the length of each string as a variable length integer inline with its
  character stream.
- Improve memcpy() internal BPF function.
- Testsuite improvements.  (Eugene Loh)

More information about the El-errata mailing list