[CI-NOTIFY]: TCWG Bisect tcwg_bmk_tk1/llvm-release-arm-spec2k6-O2_LTO - Build # 13 - Successful!
Successfully identified regression in *llvm* in CI configuration
tcwg_bmk_llvm_tk1/llvm-release-arm-spec2k6-O2_LTO. So far, this commit has
regressed CI configurations:
- tcwg_bmk_llvm_tk1/llvm-release-arm-spec2k6-O2_LTO
Culprit:
commit 9be8f8b34d9b150cd1811e3556fe9d0cd735ae29
Author: Fangrui Song
Date: Thu Mar 25 21:55:27 2021 -0700
[sanitizer] Simplify GetTls with dl_iterate_phdr
GetTls is the range of
* thread control block and optional TLS_PRE_TCB_SIZE
* static TLS blocks plus static TLS surplus
On glibc, lsan requires the range to include
`pthread::{specific_1stblock,specific}` so that allocations only referenced
by
`pthread_setspecific` can be scanned.
This patch uses `dl_iterate_phdr` to collect TLS ranges. Find the one
with `dlpi_tls_modid==1` as one of the initially loaded module, then find
consecutive ranges. The boundaries give us addr and size.
This allows us to drop the glibc internal `_dl_get_tls_static_info` and
`InitTlsSize` entirely. Use the simplified method with non-Android Linux for
now, but in theory this can be used with *BSD and potentially other ELF
OSes.
In the future, we can move `ThreadDescriptorSize` code to lsan (and consider
intercepting `pthread_setspecific`) to avoid hacks in generic code.
See https://reviews.llvm.org/D93972#2480556 for analysis on GetTls usage
across various sanitizers.
Differential Revision: https://reviews.llvm.org/D98926
Results regressed to (for first_bad == 9be8f8b34d9b150cd1811e3556fe9d0cd735ae29)
# reset_artifacts:
-10
# build_abe binutils:
-9
# build_abe stage1 -- --set gcc_override_configure=--with-mode=arm --set
gcc_override_configure=--disable-libsanitizer:
-8
# build_abe linux:
-7
# build_abe glibc:
-6
# build_abe stage2 -- --set gcc_override_configure=--with-mode=arm --set
gcc_override_configure=--disable-libsanitizer:
-5
# build_llvm true:
-3
# true:
0
# benchmark -- -O2_LTO_marm
artifacts/build-9be8f8b34d9b150cd1811e3556fe9d0cd735ae29/results_id:
1
# 456.hmmer,hmmer_base.default regressed by 103
from (for last_good == 9d375a40c3df90dd48edc0e1b1115c702c55d716)
# reset_artifacts:
-10
# build_abe binutils:
-9
# build_abe stage1 -- --set gcc_override_configure=--with-mode=arm --set
gcc_override_configure=--disable-libsanitizer:
-8
# build_abe linux:
-7
# build_abe glibc:
-6
# build_abe stage2 -- --set gcc_override_configure=--with-mode=arm --set
gcc_override_configure=--disable-libsanitizer:
-5
# build_llvm true:
-3
# true:
0
# benchmark -- -O2_LTO_marm
artifacts/build-9d375a40c3df90dd48edc0e1b1115c702c55d716/results_id:
1
Artifacts of last_good build:
https://ci.linaro.org/job/tcwg_bmk_ci_llvm-bisect-tcwg_bmk_tk1-llvm-release-arm-spec2k6-O2_LTO/13/artifact/artifacts/build-9d375a40c3df90dd48edc0e1b1115c702c55d716/
Results ID of last_good:
tk1_32/tcwg_bmk_llvm_tk1/bisect-llvm-release-arm-spec2k6-O2_LTO/4304
Artifacts of first_bad build:
https://ci.linaro.org/job/tcwg_bmk_ci_llvm-bisect-tcwg_bmk_tk1-llvm-release-arm-spec2k6-O2_LTO/13/artifact/artifacts/build-9be8f8b34d9b150cd1811e3556fe9d0cd735ae29/
Results ID of first_bad:
tk1_32/tcwg_bmk_llvm_tk1/bisect-llvm-release-arm-spec2k6-O2_LTO/4302
Build top page/logs:
https://ci.linaro.org/job/tcwg_bmk_ci_llvm-bisect-tcwg_bmk_tk1-llvm-release-arm-spec2k6-O2_LTO/13/
Configuration details:
Reproduce builds:
mkdir investigate-llvm-9be8f8b34d9b150cd1811e3556fe9d0cd735ae29
cd investigate-llvm-9be8f8b34d9b150cd1811e3556fe9d0cd735ae29
git clone https://git.linaro.org/toolchain/jenkins-scripts
mkdir -p artifacts/manifests
curl -o artifacts/manifests/build-baseline.sh
https://ci.linaro.org/job/tcwg_bmk_ci_llvm-bisect-tcwg_bmk_tk1-llvm-release-arm-spec2k6-O2_LTO/13/artifact/artifacts/manifests/build-baseline.sh
--fail
curl -o artifacts/manifests/build-parameters.sh
https://ci.linaro.org/job/tcwg_bmk_ci_llvm-bisect-tcwg_bmk_tk1-llvm-release-arm-spec2k6-O2_LTO/13/artifact/artifacts/manifests/build-parameters.sh
--fail
curl -o artifacts/test.sh
https://ci.linaro.org/job/tcwg_bmk_ci_llvm-bisect-tcwg_bmk_tk1-llvm-release-arm-spec2k6-O2_LTO/13/artifact/artifacts/test.sh
--fail
chmod +x artifacts/test.sh
# Reproduce the baseline build (build all pre-requisites)
./jenkins-scripts/tcwg_bmk-build.sh @@ artifacts/manifests/build-baseline.sh
# Save baseline build state (which is then restored in artifacts/test.sh)
mkdir -p ./bisect
rsync -a --del --delete-excluded --exclude /bisect/ --exclude /artifacts/
--exclude /llvm/ ./ ./bisect/baseline/
cd llvm
# Reproduce first_bad build
git checkout --detach 9be8f8b34d9b150cd1811e3556fe9d0cd735ae29
../artifacts/test.sh
# Reproduce last_good build
git checkout --detach 9d375a40c3df90dd48edc0e1b1115c702c55d716
../artifacts/test.sh
cd ..
History of pending regressions and results:
https://git.linaro.org/toolchain/ci/base-artifacts.git/log/?h=linaro-local/ci/tcwg_bmk_llvm_tk1/llvm-release-arm-spec2
Moving to l...@lists.linux.dev
Hi everyone, We are shifting the ClangBuiltLinux mailing list from clang-built-li...@googlegroups.com to l...@lists.linux.dev. Google Groups has served us well but moving to lists.linux.dev allows for easier archival (as we will be on lore.kernel.org automatically) and allows for people to subscribe to us easier, as they only need an email address, rather than a Google account. Please follow these directions to subscribe to the new mailing list: https://subspace.kernel.org/index.html#subscribing Some more information about lists.linux.dev: https://www.kernel.org/lists-linux-dev.html https://subspace.kernel.org/lists.linux.dev.html I have added CI maintainers/mailing lists that send us regular reports to this announcement. Please continue to send us emails about build results, just switch the email from clang-built-li...@googlegroups.com to l...@lists.linux.dev so that they get archived as a part of lore and can be easily searched, especially with the upcoming https://x-lore.kernel.org/all/. I will send a patch shortly to update MAINTAINERS. Cheers, Nathan ___ linaro-toolchain mailing list linaro-toolchain@lists.linaro.org https://lists.linaro.org/mailman/listinfo/linaro-toolchain
[CI-NOTIFY]: TCWG Bisect tcwg_bmk_tk1/llvm-release-arm-spec2k6-O2_LTO - Build # 14 - Successful!
Successfully identified regression in *llvm* in CI configuration tcwg_bmk_llvm_tk1/llvm-release-arm-spec2k6-O2_LTO. So far, this commit has regressed CI configurations: - tcwg_bmk_llvm_tk1/llvm-release-arm-spec2k6-O2_LTO Culprit: commit efa7df1682c2859dabe3646ee7dc01e68629417f Author: Gabor Marton Date: Thu Mar 25 15:40:26 2021 +0100 [Analyzer] Track RValue expressions It makes sense to track rvalue expressions in the case of special concrete integer values. The most notable special value is zero (later we may find other values). By tracking the origin of 0, we can provide a better explanation for users e.g. in case of division by 0 warnings. When the divisor is a product of a multiplication then now we can show which operand (or both) was (were) zero and why. Differential Revision: https://reviews.llvm.org/D99344 Results regressed to (for first_bad == efa7df1682c2859dabe3646ee7dc01e68629417f) # reset_artifacts: -10 # build_abe binutils: -9 # build_abe stage1 -- --set gcc_override_configure=--with-mode=arm --set gcc_override_configure=--disable-libsanitizer: -8 # build_abe linux: -7 # build_abe glibc: -6 # build_abe stage2 -- --set gcc_override_configure=--with-mode=arm --set gcc_override_configure=--disable-libsanitizer: -5 # build_llvm true: -3 # true: 0 # benchmark -- -O2_LTO_marm artifacts/build-efa7df1682c2859dabe3646ee7dc01e68629417f/results_id: 1 # 456.hmmer,hmmer_base.default regressed by 103 from (for last_good == 1696b8ae96b2d8bcbf90894bd344a8a090f43c84) # reset_artifacts: -10 # build_abe binutils: -9 # build_abe stage1 -- --set gcc_override_configure=--with-mode=arm --set gcc_override_configure=--disable-libsanitizer: -8 # build_abe linux: -7 # build_abe glibc: -6 # build_abe stage2 -- --set gcc_override_configure=--with-mode=arm --set gcc_override_configure=--disable-libsanitizer: -5 # build_llvm true: -3 # true: 0 # benchmark -- -O2_LTO_marm artifacts/build-1696b8ae96b2d8bcbf90894bd344a8a090f43c84/results_id: 1 Artifacts of last_good build: https://ci.linaro.org/job/tcwg_bmk_ci_llvm-bisect-tcwg_bmk_tk1-llvm-release-arm-spec2k6-O2_LTO/14/artifact/artifacts/build-1696b8ae96b2d8bcbf90894bd344a8a090f43c84/ Results ID of last_good: tk1_32/tcwg_bmk_llvm_tk1/bisect-llvm-release-arm-spec2k6-O2_LTO/4320 Artifacts of first_bad build: https://ci.linaro.org/job/tcwg_bmk_ci_llvm-bisect-tcwg_bmk_tk1-llvm-release-arm-spec2k6-O2_LTO/14/artifact/artifacts/build-efa7df1682c2859dabe3646ee7dc01e68629417f/ Results ID of first_bad: tk1_32/tcwg_bmk_llvm_tk1/bisect-llvm-release-arm-spec2k6-O2_LTO/4322 Build top page/logs: https://ci.linaro.org/job/tcwg_bmk_ci_llvm-bisect-tcwg_bmk_tk1-llvm-release-arm-spec2k6-O2_LTO/14/ Configuration details: Reproduce builds: mkdir investigate-llvm-efa7df1682c2859dabe3646ee7dc01e68629417f cd investigate-llvm-efa7df1682c2859dabe3646ee7dc01e68629417f git clone https://git.linaro.org/toolchain/jenkins-scripts mkdir -p artifacts/manifests curl -o artifacts/manifests/build-baseline.sh https://ci.linaro.org/job/tcwg_bmk_ci_llvm-bisect-tcwg_bmk_tk1-llvm-release-arm-spec2k6-O2_LTO/14/artifact/artifacts/manifests/build-baseline.sh --fail curl -o artifacts/manifests/build-parameters.sh https://ci.linaro.org/job/tcwg_bmk_ci_llvm-bisect-tcwg_bmk_tk1-llvm-release-arm-spec2k6-O2_LTO/14/artifact/artifacts/manifests/build-parameters.sh --fail curl -o artifacts/test.sh https://ci.linaro.org/job/tcwg_bmk_ci_llvm-bisect-tcwg_bmk_tk1-llvm-release-arm-spec2k6-O2_LTO/14/artifact/artifacts/test.sh --fail chmod +x artifacts/test.sh # Reproduce the baseline build (build all pre-requisites) ./jenkins-scripts/tcwg_bmk-build.sh @@ artifacts/manifests/build-baseline.sh # Save baseline build state (which is then restored in artifacts/test.sh) mkdir -p ./bisect rsync -a --del --delete-excluded --exclude /bisect/ --exclude /artifacts/ --exclude /llvm/ ./ ./bisect/baseline/ cd llvm # Reproduce first_bad build git checkout --detach efa7df1682c2859dabe3646ee7dc01e68629417f ../artifacts/test.sh # Reproduce last_good build git checkout --detach 1696b8ae96b2d8bcbf90894bd344a8a090f43c84 ../artifacts/test.sh cd .. History of pending regressions and results: https://git.linaro.org/toolchain/ci/base-artifacts.git/log/?h=linaro-local/ci/tcwg_bmk_llvm_tk1/llvm-release-arm-spec2k6-O2_LTO Artifacts: https://ci.linaro.org/job/tcwg_bmk_ci_llvm-bisect-tcwg_bmk_tk1-llvm-release-arm-spec2k6-O2_LTO/14/artifact/artifacts/ Build log: https://ci.linaro.org/job/tcwg_bmk_ci_llvm-bisect-tcwg_bmk_tk1-llvm-release-arm-spec2k6-O2_LTO/14/consoleText Full commit (up to 1000 lines): commit efa7df1682c2859dabe3646ee7dc01e68629417f Author: Gabor Marton Date: Thu Mar 25 15:40:26 2021 +0100 [Analyzer] Track RValue expressions It makes sense to track rvalue expressions in the case of special concrete integer values. The most notable special value is zero (later we may find other values). By tracking th
