From 095756741b482f9a6d81762f175617386e5a53d8 Mon Sep 17 00:00:00 2001
From: ludamad <domuradical@gmail.com>
Date: Wed, 25 Feb 2026 13:54:07 -0500
Subject: [PATCH 01/16] dbg

---
 bootstrap.sh | 1 +
 1 file changed, 1 insertion(+)

diff --git a/bootstrap.sh b/bootstrap.sh
index a241ff273bfd..d285e8982683 100755
--- a/bootstrap.sh
+++ b/bootstrap.sh
@@ -694,6 +694,7 @@ case "$cmd" in
     barretenberg/cpp/bootstrap.sh build
     ;;
   "ci-barretenberg")
+    export BUILD_SYSTEM_DEBUG=1
     export CI=1
     export USE_TEST_CACHE=1
     export AVM=0

From e7c6775e78504222f9bea0739a53c4ab63c6161b Mon Sep 17 00:00:00 2001
From: ludamad <domuradical@gmail.com>
Date: Wed, 25 Feb 2026 14:08:37 -0500
Subject: [PATCH 02/16] -

---
 barretenberg/cpp/bootstrap.sh | 3 +++
 bootstrap.sh                  | 2 +-
 2 files changed, 4 insertions(+), 1 deletion(-)

diff --git a/barretenberg/cpp/bootstrap.sh b/barretenberg/cpp/bootstrap.sh
index b2c78fd1eba2..32c10853f481 100755
--- a/barretenberg/cpp/bootstrap.sh
+++ b/barretenberg/cpp/bootstrap.sh
@@ -287,6 +287,7 @@ function build_release_dir {
 export -f build_preset build_native_objects build_cross_objects build_native build_cross build_ios build_android build_asan_fast build_wasm build_wasm_threads build_gcc_syntax_check_only build_fuzzing_syntax_check_only build_smt_verification inject_version
 
 function build {
+  set -x
   echo_header "bb cpp build"
 
   if [ "$CI_FULL" -eq 1 ]; then
@@ -408,6 +409,7 @@ function test_cmds {
 
 # This is not called in ci. It is just for a developer to run the tests.
 function test {
+  set -x
   echo_header "bb test"
   test_cmds | filter_test_cmds | parallelize
 }
@@ -501,6 +503,7 @@ case "$cmd" in
     build
     ;;
   "ci")
+    set -x
     build
     test
     ;;
diff --git a/bootstrap.sh b/bootstrap.sh
index d285e8982683..47f27638d9c1 100755
--- a/bootstrap.sh
+++ b/bootstrap.sh
@@ -694,7 +694,7 @@ case "$cmd" in
     barretenberg/cpp/bootstrap.sh build
     ;;
   "ci-barretenberg")
-    export BUILD_SYSTEM_DEBUG=1
+    set -x
     export CI=1
     export USE_TEST_CACHE=1
     export AVM=0

From 6a83bd1538ea10165ed70a0729ad6d108203cff3 Mon Sep 17 00:00:00 2001
From: ludamad <domuradical@gmail.com>
Date: Wed, 25 Feb 2026 14:41:11 -0500
Subject: [PATCH 03/16] fix(ci3): emit sentinel to prevent SIGPIPE when all
 tests are cached

When all tests are filtered by filter_cached_test_cmd, parallelize
receives empty stdin causing GNU parallel to exit and the upstream
pipeline to receive SIGPIPE (exit 141). Emit a trailing empty line
as a sentinel; run_test_cmd already handles empty commands with an
early exit 0, and parallelize already excludes them from the count.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
---
 ci3/filter_cached_test_cmd | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/ci3/filter_cached_test_cmd b/ci3/filter_cached_test_cmd
index 04f288c05c92..73251f8c2feb 100755
--- a/ci3/filter_cached_test_cmd
+++ b/ci3/filter_cached_test_cmd
@@ -38,3 +38,9 @@ else
   # Noop.
   cat
 fi
+
+# Always emit an empty sentinel line so that 'parallelize' always receives at least one
+# line of input. Without this, when all tests are cache-filtered out, GNU parallel receives
+# empty stdin and the upstream pipeline gets SIGPIPE (exit 141). run_test_cmd handles
+# empty commands with an early exit 0, and parallelize already excludes them from the count.
+echo ""

From b63677c6454feee70dcbf63e7836112d56803c0b Mon Sep 17 00:00:00 2001
From: ludamad <domuradical@gmail.com>
Date: Wed, 25 Feb 2026 15:00:03 -0500
Subject: [PATCH 04/16] fix(ci3): handle SIGPIPE in bb test when all tests are
 cached

test_cmds_native runs each test binary with --gtest_list_tests to
enumerate tests, which takes real time across 50+ binaries. When all
tests are cache-hits, the downstream (parallelize) exits early, and
test_cmds_native's echo calls receive SIGPIPE (exit 141).

Fix by using set +o pipefail + PIPESTATUS to distinguish SIGPIPE from
test_cmds (exit 141, expected when all cached) from genuine failures.
Revert the earlier sentinel approach which didn't address the root cause.

The root-level CI avoids this by writing tests to a file (test_engine),
so test_cmds never pipes to a reader that can exit early.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
---
 barretenberg/cpp/bootstrap.sh | 15 +++++++++++++++
 ci3/filter_cached_test_cmd    |  6 ------
 2 files changed, 15 insertions(+), 6 deletions(-)

diff --git a/barretenberg/cpp/bootstrap.sh b/barretenberg/cpp/bootstrap.sh
index 32c10853f481..8334fe232e9b 100755
--- a/barretenberg/cpp/bootstrap.sh
+++ b/barretenberg/cpp/bootstrap.sh
@@ -411,7 +411,22 @@ function test_cmds {
 function test {
   set -x
   echo_header "bb test"
+  # test_cmds_native runs each test binary with --gtest_list_tests to enumerate tests.
+  # When all tests are cache-hits, the downstream (parallelize) exits early, causing
+  # test_cmds_native's echo calls to receive SIGPIPE (exit 141). This is expected and OK.
+  # We use set +o pipefail + PIPESTATUS to distinguish this from genuine failures.
+  set +o pipefail
   test_cmds | filter_test_cmds | parallelize
+  local -a ps=("${PIPESTATUS[@]}")
+  set -o pipefail
+  # ps[0]=test_cmds, ps[1]=filter_test_cmds, ps[2]=parallelize
+  if [ "${ps[0]}" -ne 0 ] && [ "${ps[0]}" -ne 141 ]; then
+    echo "test_cmds failed (exit ${ps[0]})"
+    exit "${ps[0]}"
+  fi
+  if [ "${ps[2]}" -ne 0 ]; then
+    exit "${ps[2]}"
+  fi
 }
 
 function build_bench {
diff --git a/ci3/filter_cached_test_cmd b/ci3/filter_cached_test_cmd
index 73251f8c2feb..04f288c05c92 100755
--- a/ci3/filter_cached_test_cmd
+++ b/ci3/filter_cached_test_cmd
@@ -38,9 +38,3 @@ else
   # Noop.
   cat
 fi
-
-# Always emit an empty sentinel line so that 'parallelize' always receives at least one
-# line of input. Without this, when all tests are cache-filtered out, GNU parallel receives
-# empty stdin and the upstream pipeline gets SIGPIPE (exit 141). run_test_cmd handles
-# empty commands with an early exit 0, and parallelize already excludes them from the count.
-echo ""

From 872f43c05e08df07ef273b40e13d53b3df2de6c1 Mon Sep 17 00:00:00 2001
From: ludamad <domuradical@gmail.com>
Date: Wed, 25 Feb 2026 15:12:02 -0500
Subject: [PATCH 05/16] fix(ci3): buffer test_cmds to file to avoid SIGPIPE
 when all cached

test_cmds_native runs each binary with --gtest_list_tests to enumerate
tests. When all tests are cached, the downstream exits early and
test_cmds_native receives SIGPIPE (exit 141).

Write test commands to a temp file first (analogous to how the root-level
build_and_test uses test_engine with a file). Writing to a file is immune
to SIGPIPE regardless of when the downstream reader exits.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
---
 barretenberg/cpp/bootstrap.sh | 23 +++++++----------------
 1 file changed, 7 insertions(+), 16 deletions(-)

diff --git a/barretenberg/cpp/bootstrap.sh b/barretenberg/cpp/bootstrap.sh
index 8334fe232e9b..1acbc4fc6c51 100755
--- a/barretenberg/cpp/bootstrap.sh
+++ b/barretenberg/cpp/bootstrap.sh
@@ -411,22 +411,13 @@ function test_cmds {
 function test {
   set -x
   echo_header "bb test"
-  # test_cmds_native runs each test binary with --gtest_list_tests to enumerate tests.
-  # When all tests are cache-hits, the downstream (parallelize) exits early, causing
-  # test_cmds_native's echo calls to receive SIGPIPE (exit 141). This is expected and OK.
-  # We use set +o pipefail + PIPESTATUS to distinguish this from genuine failures.
-  set +o pipefail
-  test_cmds | filter_test_cmds | parallelize
-  local -a ps=("${PIPESTATUS[@]}")
-  set -o pipefail
-  # ps[0]=test_cmds, ps[1]=filter_test_cmds, ps[2]=parallelize
-  if [ "${ps[0]}" -ne 0 ] && [ "${ps[0]}" -ne 141 ]; then
-    echo "test_cmds failed (exit ${ps[0]})"
-    exit "${ps[0]}"
-  fi
-  if [ "${ps[2]}" -ne 0 ]; then
-    exit "${ps[2]}"
-  fi
+  # Write test commands to a temp file first to avoid SIGPIPE: test_cmds_native runs
+  # each binary with --gtest_list_tests (slow), and if all tests are cached the downstream
+  # exits before enumeration completes. Writing to a file is immune to this.
+  local cmds_file=$(mktemp)
+  trap "rm -f $cmds_file" RETURN
+  test_cmds > $cmds_file
+  cat $cmds_file | filter_test_cmds | parallelize
 }
 
 function build_bench {

From 1588f35b4ae0d18f6841729dc189f6afbd27c0d2 Mon Sep 17 00:00:00 2001
From: ludamad <domuradical@gmail.com>
Date: Wed, 25 Feb 2026 15:15:29 -0500
Subject: [PATCH 06/16] dbg: add set -x to parallelize to trace why it exits
 early

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
---
 barretenberg/cpp/bootstrap.sh | 8 +-------
 ci3/parallelize               | 1 +
 2 files changed, 2 insertions(+), 7 deletions(-)

diff --git a/barretenberg/cpp/bootstrap.sh b/barretenberg/cpp/bootstrap.sh
index 1acbc4fc6c51..32c10853f481 100755
--- a/barretenberg/cpp/bootstrap.sh
+++ b/barretenberg/cpp/bootstrap.sh
@@ -411,13 +411,7 @@ function test_cmds {
 function test {
   set -x
   echo_header "bb test"
-  # Write test commands to a temp file first to avoid SIGPIPE: test_cmds_native runs
-  # each binary with --gtest_list_tests (slow), and if all tests are cached the downstream
-  # exits before enumeration completes. Writing to a file is immune to this.
-  local cmds_file=$(mktemp)
-  trap "rm -f $cmds_file" RETURN
-  test_cmds > $cmds_file
-  cat $cmds_file | filter_test_cmds | parallelize
+  test_cmds | filter_test_cmds | parallelize
 }
 
 function build_bench {
diff --git a/ci3/parallelize b/ci3/parallelize
index 8fc7db08092e..2e7929dd36ac 100755
--- a/ci3/parallelize
+++ b/ci3/parallelize
@@ -3,6 +3,7 @@
 # Commands are read from stdin.
 NO_CD=1 source $(git rev-parse --show-toplevel)/ci3/source
 
+set -x
 [ "${STRICT_SCHEDULING:-0}" -eq 1 ] && exec parallelize_strict "$@"
 
 cd $root

From 97f763af465b5b8750895a301bc9e4ee7c39cc4e Mon Sep 17 00:00:00 2001
From: ludamad <domuradical@gmail.com>
Date: Wed, 25 Feb 2026 15:33:31 -0500
Subject: [PATCH 07/16] dbg: add set -x to filter_cached_test_cmd to find early
 exit cause

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
---
 ci3/filter_cached_test_cmd | 3 +++
 ci3/parallelize            | 1 -
 2 files changed, 3 insertions(+), 1 deletion(-)

diff --git a/ci3/filter_cached_test_cmd b/ci3/filter_cached_test_cmd
index 04f288c05c92..b9bb9e04db46 100755
--- a/ci3/filter_cached_test_cmd
+++ b/ci3/filter_cached_test_cmd
@@ -29,11 +29,14 @@ function process_batch {
 export -f process_batch
 
 if [ "${USE_TEST_CACHE:-0}" -eq 1 ] && [ "$CI_REDIS_AVAILABLE" -eq 1 ]; then
+  set -x
   exec 3> >(cache_log "Skipped tests")
   # Process stdin in batches of 50.
   parallel --pipe -N50 --keep-order process_batch
+  echo "parallel exit: $?"
   exec 3>&-
   wait
+  echo "wait exit: $?"
 else
   # Noop.
   cat
diff --git a/ci3/parallelize b/ci3/parallelize
index 2e7929dd36ac..8fc7db08092e 100755
--- a/ci3/parallelize
+++ b/ci3/parallelize
@@ -3,7 +3,6 @@
 # Commands are read from stdin.
 NO_CD=1 source $(git rev-parse --show-toplevel)/ci3/source
 
-set -x
 [ "${STRICT_SCHEDULING:-0}" -eq 1 ] && exec parallelize_strict "$@"
 
 cd $root

From 5f8b444a524bef2f71350fdb9c7eeb2ced11f419 Mon Sep 17 00:00:00 2001
From: ludamad <domuradical@gmail.com>
Date: Wed, 25 Feb 2026 16:03:18 -0500
Subject: [PATCH 08/16] dbg: capture parallel --pipe exit code in
 filter_cached_test_cmd

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
---
 ci3/filter_cached_test_cmd | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/ci3/filter_cached_test_cmd b/ci3/filter_cached_test_cmd
index b9bb9e04db46..ba7892dcafad 100755
--- a/ci3/filter_cached_test_cmd
+++ b/ci3/filter_cached_test_cmd
@@ -32,8 +32,10 @@ if [ "${USE_TEST_CACHE:-0}" -eq 1 ] && [ "$CI_REDIS_AVAILABLE" -eq 1 ]; then
   set -x
   exec 3> >(cache_log "Skipped tests")
   # Process stdin in batches of 50.
-  parallel --pipe -N50 --keep-order process_batch
+  set +e
+  parallel --pipe -N50 --keep-order process_batch 2>&1
   echo "parallel exit: $?"
+  set -e
   exec 3>&-
   wait
   echo "wait exit: $?"

From b889ee9bf75a21802e965eecca70cbba197056bf Mon Sep 17 00:00:00 2001
From: ludamad <domuradical@gmail.com>
Date: Wed, 25 Feb 2026 22:07:53 -0500
Subject: [PATCH 09/16] probe

---
 barretenberg/cpp/bootstrap.sh | 5 ++++-
 ci3/parallelize               | 4 ++--
 2 files changed, 6 insertions(+), 3 deletions(-)

diff --git a/barretenberg/cpp/bootstrap.sh b/barretenberg/cpp/bootstrap.sh
index 32c10853f481..75301b43767e 100755
--- a/barretenberg/cpp/bootstrap.sh
+++ b/barretenberg/cpp/bootstrap.sh
@@ -503,9 +503,12 @@ case "$cmd" in
     build
     ;;
   "ci")
-    set -x
     build
+    set -x
+    set +e
     test
+    echo $!
+    set -e
     ;;
   "hash")
     echo $hash
diff --git a/ci3/parallelize b/ci3/parallelize
index 8fc7db08092e..381e37cf737a 100755
--- a/ci3/parallelize
+++ b/ci3/parallelize
@@ -54,7 +54,7 @@ echo "Completed run of $(tail -n+2 joblog.txt | grep -v "''" | wc -l) tests in $
 
 # Process flake log (check thresholds and post PR comment in CI)
 if [ "$CI" -eq 1 ]; then
-  $root/scripts/process_flake_log.py "$FLAKES_FILE" --post-comment
+  $root/scripts/process_flake_log.py "$FLAKES_FILE" --post-comment || true
 else
-  $root/scripts/process_flake_log.py "$FLAKES_FILE"
+  $root/scripts/process_flake_log.py "$FLAKES_FILE" || true
 fi

From 89b38db346f78e6178f5d18ad11e877a7b9a0983 Mon Sep 17 00:00:00 2001
From: ludamad <domuradical@gmail.com>
Date: Wed, 25 Feb 2026 23:22:26 -0500
Subject: [PATCH 10/16] probe

---
 barretenberg/cpp/bootstrap.sh | 9 ++++-----
 ci3/filter_cached_test_cmd    | 2 --
 2 files changed, 4 insertions(+), 7 deletions(-)

diff --git a/barretenberg/cpp/bootstrap.sh b/barretenberg/cpp/bootstrap.sh
index 75301b43767e..256d5695743c 100755
--- a/barretenberg/cpp/bootstrap.sh
+++ b/barretenberg/cpp/bootstrap.sh
@@ -411,7 +411,10 @@ function test_cmds {
 function test {
   set -x
   echo_header "bb test"
-  test_cmds | filter_test_cmds | parallelize
+  test_cmds > /tmp/test_cmds
+  filter_test_cmds < /tmp/test_cmds > /tmp/out
+  echo "hi" ; cat /tmp/out ; echo "hey"
+  cat /tmp/out | parallelize
 }
 
 function build_bench {
@@ -504,11 +507,7 @@ case "$cmd" in
     ;;
   "ci")
     build
-    set -x
-    set +e
     test
-    echo $!
-    set -e
     ;;
   "hash")
     echo $hash
diff --git a/ci3/filter_cached_test_cmd b/ci3/filter_cached_test_cmd
index ba7892dcafad..c8c9d25423af 100755
--- a/ci3/filter_cached_test_cmd
+++ b/ci3/filter_cached_test_cmd
@@ -34,11 +34,9 @@ if [ "${USE_TEST_CACHE:-0}" -eq 1 ] && [ "$CI_REDIS_AVAILABLE" -eq 1 ]; then
   # Process stdin in batches of 50.
   set +e
   parallel --pipe -N50 --keep-order process_batch 2>&1
-  echo "parallel exit: $?"
   set -e
   exec 3>&-
   wait
-  echo "wait exit: $?"
 else
   # Noop.
   cat

From 526643e39e9e5964c260692d29bc530123b0a39e Mon Sep 17 00:00:00 2001
From: ludamad <domuradical@gmail.com>
Date: Thu, 26 Feb 2026 00:47:36 -0500
Subject: [PATCH 11/16] probe

---
 barretenberg/cpp/bootstrap.sh | 2 +-
 bootstrap.sh                  | 2 ++
 2 files changed, 3 insertions(+), 1 deletion(-)

diff --git a/barretenberg/cpp/bootstrap.sh b/barretenberg/cpp/bootstrap.sh
index 256d5695743c..ec3ce95b9fdb 100755
--- a/barretenberg/cpp/bootstrap.sh
+++ b/barretenberg/cpp/bootstrap.sh
@@ -287,7 +287,6 @@ function build_release_dir {
 export -f build_preset build_native_objects build_cross_objects build_native build_cross build_ios build_android build_asan_fast build_wasm build_wasm_threads build_gcc_syntax_check_only build_fuzzing_syntax_check_only build_smt_verification inject_version
 
 function build {
-  set -x
   echo_header "bb cpp build"
 
   if [ "$CI_FULL" -eq 1 ]; then
@@ -410,6 +409,7 @@ function test_cmds {
 # This is not called in ci. It is just for a developer to run the tests.
 function test {
   set -x
+  set -e
   echo_header "bb test"
   test_cmds > /tmp/test_cmds
   filter_test_cmds < /tmp/test_cmds > /tmp/out
diff --git a/bootstrap.sh b/bootstrap.sh
index 47f27638d9c1..4724ab760fe4 100755
--- a/bootstrap.sh
+++ b/bootstrap.sh
@@ -699,7 +699,9 @@ case "$cmd" in
     export USE_TEST_CACHE=1
     export AVM=0
     export AVM_TRANSPILER=0
+    set +e
     barretenberg/cpp/bootstrap.sh ci
+    echo $?
     ;;
   "ci-barretenberg-full")
     export CI=1

From 8224dffb37d597560e7f8cf1bfb996d8091d5f80 Mon Sep 17 00:00:00 2001
From: ludamad <domuradical@gmail.com>
Date: Thu, 26 Feb 2026 01:10:18 -0500
Subject: [PATCH 12/16] probe

---
 barretenberg/cpp/bootstrap.sh | 14 ++++++++++++--
 ci3/filter_cached_test_cmd    |  4 ++++
 2 files changed, 16 insertions(+), 2 deletions(-)

diff --git a/barretenberg/cpp/bootstrap.sh b/barretenberg/cpp/bootstrap.sh
index ec3ce95b9fdb..c34555882ec9 100755
--- a/barretenberg/cpp/bootstrap.sh
+++ b/barretenberg/cpp/bootstrap.sh
@@ -409,12 +409,22 @@ function test_cmds {
 # This is not called in ci. It is just for a developer to run the tests.
 function test {
   set -x
-  set -e
   echo_header "bb test"
   test_cmds > /tmp/test_cmds
+  echo "test_cmds line count: $(wc -l < /tmp/test_cmds)"
+  set +e
   filter_test_cmds < /tmp/test_cmds > /tmp/out
-  echo "hi" ; cat /tmp/out ; echo "hey"
+  filter_exit=$?
+  set -e
+  echo "filter_test_cmds exit: $filter_exit"
+  echo "filter output line count: $(wc -l < /tmp/out)"
+  cat /tmp/out
+  set +e
   cat /tmp/out | parallelize
+  par_exit=$?
+  set -e
+  echo "parallelize exit: $par_exit"
+  [ $par_exit -ne 0 ] && exit $par_exit || true
 }
 
 function build_bench {
diff --git a/ci3/filter_cached_test_cmd b/ci3/filter_cached_test_cmd
index c8c9d25423af..a30785e4d947 100755
--- a/ci3/filter_cached_test_cmd
+++ b/ci3/filter_cached_test_cmd
@@ -34,9 +34,13 @@ if [ "${USE_TEST_CACHE:-0}" -eq 1 ] && [ "$CI_REDIS_AVAILABLE" -eq 1 ]; then
   # Process stdin in batches of 50.
   set +e
   parallel --pipe -N50 --keep-order process_batch 2>&1
+  par_exit=$?
+  echo "filter_cached_test_cmd: parallel --pipe exit=$par_exit" >&2
   set -e
   exec 3>&-
   wait
+  wait_exit=$?
+  echo "filter_cached_test_cmd: wait exit=$wait_exit" >&2
 else
   # Noop.
   cat

From 6a0edcdfe0f48925fd9900bedad23ab5f4d144af Mon Sep 17 00:00:00 2001
From: ludamad <domuradical@gmail.com>
Date: Thu, 26 Feb 2026 01:28:08 -0500
Subject: [PATCH 13/16] probe

---
 barretenberg/cpp/bootstrap.sh | 10 +++++++---
 1 file changed, 7 insertions(+), 3 deletions(-)

diff --git a/barretenberg/cpp/bootstrap.sh b/barretenberg/cpp/bootstrap.sh
index c34555882ec9..ec97b1f504dc 100755
--- a/barretenberg/cpp/bootstrap.sh
+++ b/barretenberg/cpp/bootstrap.sh
@@ -419,12 +419,16 @@ function test {
   echo "filter_test_cmds exit: $filter_exit"
   echo "filter output line count: $(wc -l < /tmp/out)"
   cat /tmp/out
+  set +o pipefail
   set +e
   cat /tmp/out | parallelize
-  par_exit=$?
+  pipe_exit=$?
+  cat_exit=${PIPESTATUS[0]}
+  par_exit=${PIPESTATUS[1]}
   set -e
-  echo "parallelize exit: $par_exit"
-  [ $par_exit -ne 0 ] && exit $par_exit || true
+  set -o pipefail
+  echo "cat exit: $cat_exit, parallelize exit: $par_exit, pipeline exit: $pipe_exit"
+  [ $pipe_exit -ne 0 ] && exit $pipe_exit || true
 }
 
 function build_bench {

From 6d8f41820aaf870bcb29e16c704649900e0ec5f0 Mon Sep 17 00:00:00 2001
From: ludamad <domuradical@gmail.com>
Date: Thu, 26 Feb 2026 01:41:21 -0500
Subject: [PATCH 14/16] probe

---
 barretenberg/cpp/bootstrap.sh | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/barretenberg/cpp/bootstrap.sh b/barretenberg/cpp/bootstrap.sh
index ec97b1f504dc..af43920c8f97 100755
--- a/barretenberg/cpp/bootstrap.sh
+++ b/barretenberg/cpp/bootstrap.sh
@@ -422,13 +422,13 @@ function test {
   set +o pipefail
   set +e
   cat /tmp/out | parallelize
-  pipe_exit=$?
-  cat_exit=${PIPESTATUS[0]}
-  par_exit=${PIPESTATUS[1]}
+  _ps=("${PIPESTATUS[@]}")
+  cat_exit=${_ps[0]}
+  par_exit=${_ps[1]}
   set -e
   set -o pipefail
-  echo "cat exit: $cat_exit, parallelize exit: $par_exit, pipeline exit: $pipe_exit"
-  [ $pipe_exit -ne 0 ] && exit $pipe_exit || true
+  echo "cat exit: $cat_exit, parallelize exit: $par_exit"
+  [ "${par_exit:-0}" -ne 0 ] && exit $par_exit || true
 }
 
 function build_bench {

From 2dca16ea3bfbcabbd4de306fef88b2b9d94c087c Mon Sep 17 00:00:00 2001
From: ludamad <domuradical@gmail.com>
Date: Thu, 26 Feb 2026 02:06:27 -0500
Subject: [PATCH 15/16] fix: denoise stdin lost for background job - pass stdin
 explicitly to avoid /dev/null override

---
 barretenberg/cpp/bootstrap.sh | 21 +--------------------
 bootstrap.sh                  |  3 ---
 ci3/denoise                   | 10 ++++++++--
 ci3/filter_cached_test_cmd    |  9 +--------
 ci3/parallelize               |  4 ++--
 5 files changed, 12 insertions(+), 35 deletions(-)

diff --git a/barretenberg/cpp/bootstrap.sh b/barretenberg/cpp/bootstrap.sh
index af43920c8f97..b2c78fd1eba2 100755
--- a/barretenberg/cpp/bootstrap.sh
+++ b/barretenberg/cpp/bootstrap.sh
@@ -408,27 +408,8 @@ function test_cmds {
 
 # This is not called in ci. It is just for a developer to run the tests.
 function test {
-  set -x
   echo_header "bb test"
-  test_cmds > /tmp/test_cmds
-  echo "test_cmds line count: $(wc -l < /tmp/test_cmds)"
-  set +e
-  filter_test_cmds < /tmp/test_cmds > /tmp/out
-  filter_exit=$?
-  set -e
-  echo "filter_test_cmds exit: $filter_exit"
-  echo "filter output line count: $(wc -l < /tmp/out)"
-  cat /tmp/out
-  set +o pipefail
-  set +e
-  cat /tmp/out | parallelize
-  _ps=("${PIPESTATUS[@]}")
-  cat_exit=${_ps[0]}
-  par_exit=${_ps[1]}
-  set -e
-  set -o pipefail
-  echo "cat exit: $cat_exit, parallelize exit: $par_exit"
-  [ "${par_exit:-0}" -ne 0 ] && exit $par_exit || true
+  test_cmds | filter_test_cmds | parallelize
 }
 
 function build_bench {
diff --git a/bootstrap.sh b/bootstrap.sh
index 4724ab760fe4..a241ff273bfd 100755
--- a/bootstrap.sh
+++ b/bootstrap.sh
@@ -694,14 +694,11 @@ case "$cmd" in
     barretenberg/cpp/bootstrap.sh build
     ;;
   "ci-barretenberg")
-    set -x
     export CI=1
     export USE_TEST_CACHE=1
     export AVM=0
     export AVM_TRANSPILER=0
-    set +e
     barretenberg/cpp/bootstrap.sh ci
-    echo $?
     ;;
   "ci-barretenberg-full")
     export CI=1
diff --git a/ci3/denoise b/ci3/denoise
index 27107165a809..71100e439e3e 100755
--- a/ci3/denoise
+++ b/ci3/denoise
@@ -109,9 +109,15 @@ tail --sleep-interval=0.2 -n +1 -f "$outfile" > >(
 ) &
 tail_pid=$!
 
-# Execute the command in background.
-PARENT_LOG_ID=$key bash -c "$cmd" > >(redact > $outfile) 2>&1 &
+# Save stdin to fd 9 so the background job can read from it.
+# In non-interactive bash, background processes get /dev/null as stdin
+# unless we explicitly redirect stdin (the "in the absence of explicit
+# redirections" clause in the bash manual).
+exec 9<&0
+# Execute the command in background, restoring saved stdin.
+PARENT_LOG_ID=$key bash -c "$cmd" 0<&9 9>&- > >(redact > $outfile) 2>&1 &
 job_pid=$!
+exec 9>&-  # Close saved stdin in this process
 
 # Wait for the job to finish and get its exit status.
 wait $job_pid
diff --git a/ci3/filter_cached_test_cmd b/ci3/filter_cached_test_cmd
index a30785e4d947..04f288c05c92 100755
--- a/ci3/filter_cached_test_cmd
+++ b/ci3/filter_cached_test_cmd
@@ -29,18 +29,11 @@ function process_batch {
 export -f process_batch
 
 if [ "${USE_TEST_CACHE:-0}" -eq 1 ] && [ "$CI_REDIS_AVAILABLE" -eq 1 ]; then
-  set -x
   exec 3> >(cache_log "Skipped tests")
   # Process stdin in batches of 50.
-  set +e
-  parallel --pipe -N50 --keep-order process_batch 2>&1
-  par_exit=$?
-  echo "filter_cached_test_cmd: parallel --pipe exit=$par_exit" >&2
-  set -e
+  parallel --pipe -N50 --keep-order process_batch
   exec 3>&-
   wait
-  wait_exit=$?
-  echo "filter_cached_test_cmd: wait exit=$wait_exit" >&2
 else
   # Noop.
   cat
diff --git a/ci3/parallelize b/ci3/parallelize
index 381e37cf737a..8fc7db08092e 100755
--- a/ci3/parallelize
+++ b/ci3/parallelize
@@ -54,7 +54,7 @@ echo "Completed run of $(tail -n+2 joblog.txt | grep -v "''" | wc -l) tests in $
 
 # Process flake log (check thresholds and post PR comment in CI)
 if [ "$CI" -eq 1 ]; then
-  $root/scripts/process_flake_log.py "$FLAKES_FILE" --post-comment || true
+  $root/scripts/process_flake_log.py "$FLAKES_FILE" --post-comment
 else
-  $root/scripts/process_flake_log.py "$FLAKES_FILE" || true
+  $root/scripts/process_flake_log.py "$FLAKES_FILE"
 fi

From eb1cb7af48f8fa5635ca2c250327c08aac92127a Mon Sep 17 00:00:00 2001
From: ludamad <domuradical@gmail.com>
Date: Thu, 26 Feb 2026 12:09:05 -0500
Subject: [PATCH 16/16] Try just a revert

---
 ci3/denoise | 10 ++--------
 1 file changed, 2 insertions(+), 8 deletions(-)

diff --git a/ci3/denoise b/ci3/denoise
index 71100e439e3e..751484af2d9e 100755
--- a/ci3/denoise
+++ b/ci3/denoise
@@ -109,15 +109,9 @@ tail --sleep-interval=0.2 -n +1 -f "$outfile" > >(
 ) &
 tail_pid=$!
 
-# Save stdin to fd 9 so the background job can read from it.
-# In non-interactive bash, background processes get /dev/null as stdin
-# unless we explicitly redirect stdin (the "in the absence of explicit
-# redirections" clause in the bash manual).
-exec 9<&0
-# Execute the command in background, restoring saved stdin.
-PARENT_LOG_ID=$key bash -c "$cmd" 0<&9 9>&- > >(redact > $outfile) 2>&1 &
+# Execute the command in background.
+PARENT_LOG_ID=$key bash -c "$cmd" 2>&1 | redact > $outfile &
 job_pid=$!
-exec 9>&-  # Close saved stdin in this process
 
 # Wait for the job to finish and get its exit status.
 wait $job_pid