<table border="1" cellspacing="0" cellpadding="8">
<tr>
<th>Issue</th>
<td>
<a href=https://github.com/llvm/llvm-project/issues/64964>64964</a>
</td>
</tr>
<tr>
<th>Summary</th>
<td>
clangd/unittests/TUSchedulerTests.cpp fails and timesout frequently
</td>
</tr>
<tr>
<th>Labels</th>
<td>
bug,
clangd
</td>
</tr>
<tr>
<th>Assignees</th>
<td>
</td>
</tr>
<tr>
<th>Reporter</th>
<td>
hiraditya
</td>
</tr>
</table>
<pre>
For more logs see for example:
- https://ci.android.com/builds/branches/aosp-llvm-toolchain/grid?head=10685355&tail=10685355
- https://ci.android.com/builds/branches/aosp-llvm-toolchain/grid?head=10684480&tail=10684480
- https://ci.android.com/builds/branches/aosp-llvm-toolchain/grid?head=10684020&tail=10684020
Test logs pasted here.
```console
Driver produced command: cc1 -cc1 -triple x86_64-unknown-linux-gnu -fsyntax-only -disable-free -clear-ast-before-backend -disable-llvm-verifier -discard-value-names -main-file-name no_cmd.h -mrelocation-model pic -pic-level 2 -pic-is-pie -mframe-pointer=all -fmath-errno -ffp-contract=on -fno-rounding-math -mconstructor-aliases -funwind-tables=2 -target-cpu x86-64 -tune-cpu generic -debugger-tuning=gdb -fcoverage-compilation-dir=/clangd-test -resource-dir lib/clang/17 -D MAIN -internal-isystem lib/clang/17/include -internal-isystem /usr/local/include -internal-externc-isystem /include -internal-externc-isystem /usr/include -fdeprecated-macro -fdebug-compilation-dir=/clangd-test -ferror-limit 19 -fgnuc-version=4.2.1 -fcxx-exceptions -fexceptions -no-round-trip-args -faddrsig -D__GCC_HAVE_DWARF2_CFI_ASM=1 -x c++-header /clangd-test/no_cmd.h
Rebuilding invalidated preamble for /clangd-test/no_cmd.h version null (previous was version null)
out/llvm-project/clang-tools-extra/clangd/unittests/TUSchedulerTests.cpp:1354: Failure
Value of: S.blockUntilIdle(timeoutSeconds(10))
Actual: false
Expected: true
Built preamble of size 217192 for file /clangd-test/no_cmd.h version null in 11.22 seconds
ASTWorker building file /clangd-test/unreliable.h version null with command inferred from main.cpp
[/clangd-test]
clang -DMAIN -x c++-header -- /clangd-test/unreliable.h
Driver produced command: cc1 -cc1 -triple x86_64-unknown-linux-gnu -fsyntax-only -disable-free -clear-ast-before-backend -disable-llvm-verifier -discard-value-names -main-file-name unreliable.h -mrelocation-model pic -pic-level 2 -pic-is-pie -mframe-pointer=all -fmath-errno -ffp-contract=on -fno-rounding-math -mconstructor-aliases -funwind-tables=2 -target-cpu x86-64 -tune-cpu generic -debugger-tuning=gdb -fcoverage-compilation-dir=/clangd-test -resource-dir lib/clang/17 -D MAIN -internal-isystem lib/clang/17/include -internal-isystem /usr/local/include -internal-externc-isystem /include -internal-externc-isystem /usr/include -fdeprecated-macro -fdebug-compilation-dir=/clangd-test -ferror-limit 19 -fgnuc-version=4.2.1 -fcxx-exceptions -fexceptions -no-round-trip-args -faddrsig -D__GCC_HAVE_DWARF2_CFI_ASM=1 -x c++-header /clangd-test/unreliable.h
Building first preamble for /clangd-test/unreliable.h version null
out/llvm-project/clang-tools-extra/clangd/unittests/TUSchedulerTests.cpp:1354: Failure
Value of: S.blockUntilIdle(timeoutSeconds(10))
Actual: false
Expected: true
Built preamble of size 217204 for file /clangd-test/unreliable.h version null in 10.22 seconds
ASTWorker building file /clangd-test/ok.h version null with command
[/clangd-test]
clang -xobjective-c++-header /clangd-test/ok.h
Driver produced command: cc1 -cc1 -triple x86_64-unknown-linux-gnu -fsyntax-only -disable-free -clear-ast-before-backend -disable-llvm-verifier -discard-value-names -main-file-name ok.h -mrelocation-model pic -pic-level 2 -pic-is-pie -mframe-pointer=all -fmath-errno -ffp-contract=on -fno-rounding-math -mconstructor-aliases -funwind-tables=2 -target-cpu x86-64 -tune-cpu generic -debugger-tuning=gdb -fcoverage-compilation-dir=/clangd-test -resource-dir lib/clang/17 -internal-isystem lib/clang/17/include -internal-isystem /usr/local/include -internal-externc-isystem /include -internal-externc-isystem /usr/include -fdeprecated-macro -fdebug-compilation-dir=/clangd-test -ferror-limit 19 -fgnuc-version=4.2.1 -fobjc-runtime=gcc -fobjc-encode-cxx-class-template-spec -fobjc-exceptions -fcxx-exceptions -fexceptions -no-round-trip-args -faddrsig -D__GCC_HAVE_DWARF2_CFI_ASM=1 -x objective-c++-header /clangd-test/ok.h
Building first preamble for /clangd-test/ok.h version null
Built preamble of size 220364 for file /clangd-test/ok.h version null in 0.06 seconds
out/llvm-project/clang-tools-extra/clangd/unittests/TUSchedulerTests.cpp:1354: Failure
Value of: S.blockUntilIdle(timeoutSeconds(10))
Actual: false
Expected: true
ASTWorker building file /clangd-test/not_included.h version null with command clangd fallback
[/clangd-test]
```
In another run:
```console
out/llvm-project/clang-tools-extra/clangd/unittests/TUSchedulerTests.cpp:1354: Failure
Value of: S.blockUntilIdle(timeoutSeconds(10))
Actual: false
Expected: true
Built preamble of size 207320 for file /clangd-test/foo.cpp version 3 in 5.44 seconds
Reusing preamble version 3 for version 4 of /clangd-test/foo.cpp
out/llvm-project/clang-tools-extra/clangd/unittests/TUSchedulerTests.cpp:1318: Failure
Value of: Collector.diagVersions().back()
Expected: has a first field that is equal to "3", and has a second field that is equal to "3"
Actual: ("3", "4"), whose second field does not match
out/llvm-project/clang-tools-extra/clangd/unittests/TUSchedulerTests.cpp:1311
Value of: Collector.diagVersions().back()
Expected: has a first field that is equal to "3", and has a second field that is equal to "3"
Actual: ("2", "3"), whose first field does not match
out/llvm-project/clang-tools-extra/clangd/unittests/TUSchedulerTests.cpp:1318
Value of: Collector.diagVersions().back()
Expected: has a first field that is equal to "3", and has a second field that is equal to "3"
Actual: ("3", "4"), whose second field does not match
```
</pre>
<img width="1px" height="1px" alt="" src="http://email.email.llvm.org/o/eJzsmc1u4zgSx5-GvhRoSJTs2AcfnHi824fZQ6en5xhQZEnihCI1_HCcffoFpTix293u7CyyQHoaCAyJLFUV_1X8EZG496oxiCsyuyazzYTH0Fq3apXjUoVHPqmsfFxtrYPOOgRtGw8eEWrrAPe86zWSYg0k25BsTaENofekWBO2JWwr1JQb6aySU2E7wrZVVFr6dOG4ES2mS259T7XedTRYq0XLlSFs2zglSbFtkUtSbPJsvpgVsxlh88CVPh55-8BluchOAw8j_4fAGfsycBoZAo-_n9CHsSY99wEltOhwCscmZJ6Nf8IabzWOoxunduigd1ZGgRKE7TpuZCqlEDnQ4Sc41WuE_WJ-Ny9pNPfGPhiqlYl72pgItPaPJvA9tUY_ApXK80ojrR0iUKGRO8p9oBXW1iGtuLhHI1_sBgV26FSt0A3DgjtJd1xHpIZ36IF2XBlaKz0OgLF3opPTFmjnUFvBg7KGdlaihl4JoL0SVOMONbDxRnnaKwTa1Y53SHurTEBHig3XGmjd8dBSdM5YoHXdU2FNcFwEUmysAVobS52NRirT0GQLtEs6BhdFsI5yrbhPedbRPCgjaUgr86TYMKCBuwYDFX1MEtJ5CTREg8NAgwZdSlhiFZsGXZpSpiHFppEV0FrYHTreIBW265UeFypVyjy1meamkTSk8lOH3kYnME2DVtVhnrBtfgV0A7-uP_wL6LBwwzVV_tEH7M5MCdsqI3SU-BVjwrbRO8K2SXX9VVPcpwtx_MirjEa_z6a1xN6h4AEl7bhwdhiqYvMKKWp0zjqqVacC5EugdWOiSE3mlTWk2JRTNs2TvPs9xb3APjlL9Tu-ORR92ACUuyYZcCmdVw3Qzd3dP25u7v65_vzL3eb39cctu7vZfrhb3_6aNinQPQjCrgm7pmkro4PTJAnbHrp43IofcWCEMg0os-NaybR06B3yrtIjab_pAp6WBiZqDYQteoc7ZaOHB-5PJglbjvFsTA6Gzdc7-weKcPA-4MinEjn-HDEVyKiQ4iZ2ffrtVrQoo0aX4OOnou9Jsc6LWZngseVKR_cEmc9pJ4Ot08TttNJW3P9mgtIfpEbCFkF1aGO4RWFNQuQiz1KShzwB1iJErtPTNdf-yekv-x5FwAFVwcWn0euodHjRzNbg1b8RWH6VL9kgYYLIa3VUBvJ8yhj4p9yGGOvbT79bd48Ongv2dafRONQqkeBLxw8qtAfWgjKpXVFC7WwHiXSDmCO1Z9dfuJ1txplhDOhm3NRnzUbp5XzeNf5PhP15BPw8At7tEXC-Ja9fmOJ8-A7-v0mYvyXiWVZeQPy3aZwwn_11zNv7i3h_Jcj3tkoFUjuk32uaFPBd83tQ7Ce3X83tn7w-4rWt_hDURZOYkrQW4jCIRliJNAFdaO49Ddj1mgekvscXq2PWvyn8_8qO_q_wf0aey4RkWTG_RMhzkCkD2TSbn4LxhzxVXk17Y8PdU8Of_b9wwv3xsRRZJ2Z-7xh4fj9z_NLmgwFubGjRgYuGFBff5fyQdbnc0dlVwbILHV1bm9bxXKUidfRsWpanHf0Ro08Vfw7wYp98H-7KFPhbMd60BvniYg1urNaYTrOpVLz5PKabhCdsOR2ab7g817nlHvgTamqFWkJoeQDlAf-MXEOwQBgrCGOE3UDq6vGJUb3vPXJW7SGNZ3eEsXK4XKa7h9Z6PHUsLXowNkDHg2iP--GtZM7fu7bsRdviS22PU_matG_Xu-9c1P-tYQ-snshVIZfFkk9wlc-XbJnli3w-aVezerYUJUeRF1eskOViKblgszLHZTYvy_lErVjGimzBynxRZPl8WghRzJZYLfOrpeDLBSkz7LjS01S8qXXNRHkfcTUvl_NyonmF2g8fdhirYjOuhjB2qCMjs83ErYbKV7HxpMy0SiV8dhdU0Lh6dd2h5kr7Qf50FngbA9QO_4xogn6ESXR6dfq9pFGhjdXTt5IU9rwThyWliMOq_hMAAP__cu3pDw">