[El-errata] ELBA-2024-12428 Oracle Linux 8 dtrace bug fix update

Tue Jun 11 15:51:10 UTC 2024

Oracle Linux Bug Fix Advisory ELBA-2024-12428

http://linux.oracle.com/errata/ELBA-2024-12428.html

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

aarch64:
dtrace-2.0.1-1.el8.aarch64.rpm
dtrace-devel-2.0.1-1.el8.aarch64.rpm
dtrace-testsuite-2.0.1-1.el8.aarch64.rpm

SRPMS:
http://oss.oracle.com/ol8/SRPMS-updates//dtrace-2.0.1-1.el8.src.rpm

Description of changes:

[2.0.1-1]
- Implement FBT probes with fentry/fexit tracepoints
- Provide argument info for FBT probes.
- Provide pre-generated translator files sets. [Orabug: 36504847]

[2.0.0-1.14]
- Implement provider: io.  (Eugene Loh, Kris Van Hees)
- Implement actions: print().  (Alan Maguire)
- Implement subroutines: link_ntop(), cleanpath().  (Eugene Loh)
- Implement options: -xcpu, -xaggpercpu.  (Eugene Loh)
- Improve providers: pid (offset-based probes) and rawtp (arg info).
- Improve options: -xlockmem (improve default).  (Eugene Loh)
- Ensure USDT probes can survive dtprobed restarts.  (Nick Alcock)
- Improve USDT probe creation/deletion.  (Nick Alcock)
- Improve support for DTrace with upstream kernels.  (Nick Alcock)
- Improve support for compiling DTrace in older environments.  (Kris Van Hees)
- Add support for aggregations of stacks.  (Eugene Loh)
- Improve lexer parsing (top-level wildcard ambiguities and numerals).
  (Nick Alcock)
- Fix END probe execution with multiple tracers.  (Nick Alcock)
- Preemptive BPF program execution for DTrace probes is not allowed.
- Buffer overrun fix for systems with non-sequential online CPU ids.
  (Kris Van Hees, Nick Alcock) [Orabug: 36356681]
- Various bug fixes.  (Nick Alcock, Eugene Loh, Kris Van Hees)
- Various testsuite fixes and improvements.
  (Nick Alcock, Eugene Loh, Kris Van Hees)
- Various code improvements.  (Nick Alcock, Eugene Loh, Kris Van Hees)
  [Orabug: 36329725]

[2.0.0-1.13.2]
- Support using DTrace with upstream kernels.
- Implement provider: ip.
- Implement actions: trunc(), pcap().
- Implement subroutines: inet_ntoa6().
- Implement subroutines: inet_ntop(). (Eugene Loh)
- Support modules.builtin.ranges for builtin module-symbol association.
- Provide a BTF-to-CTF convertor to provide (limited) kernel type information
  when CTF is not available.
- Remove dependency on waitfd(). (Nick Alcock)
- Various testsuite fixes and improvements.
  (Nick Alcock, Eugene Loh, Kris Van Hees)
- Various code improvements. (Nick Alcock, Eugene Loh, Kris Van Hees)

[2.0.0-1.13.1]
- Restart dtprobed when upgrading DTrace.
- Report and clean up orphaned tracing events after each test.

[2.0.0-1.13]
- Full support for is-enabled USDT probes. (Nick Alcock)
- Report error on programs that exceed aggsize or dynvarsize.
- Support for drop counters for principal, speculation, and aggregation buffers
  and for dynamic variables.
- Implement probe: proc:::signal-clear.
- Implement provider: sched (partial implementation).
- Implement provider: lockstat (for kernels >= 5.10.0 and UEK6 with fix).
- Support NULL strings. (Eugene Loh)
- Support uregs[] on older kernels. (Eugene Loh)
- New option: lonknommap. (Nick Alcock)
- Support for USDT probes in programs in different fs namespaces. (Nick Alcock)
- Support for USDT probes in non-PIE executables. (Nick Alcock)
- Fix dtprobed to support DOF that exceeds 64KiB. (Nick Alcock)
  [Orabug: 35411920]
- Do not modify input files with dtrace -G if unchanged. (Steven Sistare)
  [Orbug: 35417184]
- Various testsuite fixes and improvements.
  (Nick Alcock, Eugene Loh, Kris Van Hees) [Orabug: 35435195]
- Various code improvements.  (Nick Alcock, Eugene Loh, Kris Van Hees)
  [Orabug: 35435195]

[2.0.0-1.12]
- Fix evaluation order of bcopy() arguments and lift non-alloca restriction
  on the source address. (Eugene Loh, Kris Van Hees)
- Implement actions: clear(), tracemem(). (Kris Van Hees, Eugene Loh)
- Implement subroutines: copyout(), copyinstr(). (Kris Van Hees, Eugene Loh)
- Implement options: switchrate, aggrate.
- Implement provider: cpc. (Eugene Loh)
- Implement provider: proc.
- Implement built-in variable: uregs. (Eugene Loh)
- Increase strtab maximum size.
- Support using indirect load instructions for pointers to alloca()'d and
  DTrace managed memory. (Kris Van Hees, Eugene Loh)
- Fix arg0 and arg1 for profile-* and tick-* probes. (Eugene Loh)
- Implement runtime bounds checking for scalar array access. (Eugene Loh)
- Updated manpage and moved to dtrace.8.
- Support arbitrary address pointers for basename(), dirname(), strchr(),
  strrchr(), and inet_ntoa(). (Eugene Loh) [Orabug: 34857846]
- Add runtime bounds checking for scalar array access. (Eugene Loh)
  [Orabug: 35045463]
- Various testsuite fixes and improvements. [Orabug: 34829509]
- Various code improvements. [Orabug: 34829509]

[2.0.0-1.11.1]
- Support both libfuse 2 and libfuse 3.

[2.0.0-1.11]
- Add initial support for USDT. (Nick Alcock, Kris Van Hees)
- Add support for aggregation keys. (Eugene Loh, Kris Van Hees)
- Add support for copyin(), copyinto(), and copyinstr().
- Add support for built-in variable args[] and sdt probe arg types.
- Fix arg handling for various probes. (Eugene Loh)
- Add basic support for setopt().
- Add -xlockmem, with useful error message. (Eugene Loh)
- Fix -xverbose, -xcpp, and -xctfpath
- Fix handling of multiple args after --. (Nick Alcock)
- Have the pid provider ignore compiler-generated internal function names.
- Fix various bugs with typecasting and internal integer storage. (Eugene Loh)
- Fix access to scalars in kernel space.
- Fix libproc search of rtld_global due to glibc changes. (Nick Alcock)
  [Orabug: 32856318]
- Truly decouple per-CPU BPF agg maps with a "map of maps."
- Unused dual aggregation copies (DT_AGG_NUM_COPIES) have been removed.
  (Eugene Loh)
- Various testsuite fixes and improvements. [Orabug: 34251899]
- Various code improvements. [Orabug: 34251899]

[2.0.0-1.10]
- Add support for associative arrays.
- Add support for allcoa() and bcopy(). (Nick Alcock)
- Add support for inet_ntoa(), progenyof(), getmajor(), getminor(),
  mutex_owned(), mutex_owner(), mutex_type_adaptive(), mutex_type_spin(),
  rw_read_held(), rw_write_held(), and rw_iswriter(). (Eugene Loh)
- Improved fault handling. (Nick Alcock, Kris Van Hees)
- Various disassembler improvements, esp. annotations.
- Strings are no longer stored using a length prefix.
- The trace() action now supports arrays, structs, and unions.
- Various testsuite fixes and improvements. [Orabug: 34112342]
- Various code improvements. [Orabug: 34112342]

[2.0.0-1.9.1]
- Add support for UEK7. [Orabug: 33806867]

[2.0.0-1.9]
- Add support for strtok(). (Eugene Loh)
- Implement TLS (thread-local storage) variables.
- Add support for basename(), dirname(). (Eugene Loh)
- Generic hash table improvements and consistent use of htabs. (Nick Alcock)
- CTF improvements in view of better kernel support. (Nick Alcock)
- Add support for ftruncate(). (Eugene Loh)
- Add support for rand(). (Eugene Loh)
- Fix string constant handling for strings longer than strsize.
- Optimization of substr(), strjoin(), and storing strings in the trace buffer.
- Various string handling fixes and improvements. (Eugene Loh, Kris Van Hees)
  [Orabug: 33651682]
- Various testsuite fixes and improvements. [Orabug: 33651682]
- Various code improvements. [Orabug: 33651682]

[2.0.0-1.8]
- Support running dtrace under valgrind. (Nick Alcock) [Orabug: 32760574]
- Implementation of speculative tracing. (Nick Alcock)
- Add support for string comparison. (Eugene Loh)
- Add support for strchr(), strrchr(), index(), rindex(), strstr(), lltostr().
  (Eugene Loh)
- Add support for symbols in compressed kernel modules. (Nick Alcock)
- Add support for htonl, htonll, htons, ntohl, ntohll, ntohs. (Eugene Loh)
- Various testsuite fixes and improvements. [Orabug: 33474154]
- Various code improvements. [Orabug: 33474154]

[2.0.0-1.7]
- Implement argument retrieval for SDT probes.
- 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.

[2.0.0-1.6]
- Consolidated development 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)