[llvm] [CAS] Read a CAS file's reserved size from st_blocks, not st_blksize (PR #224104)

Wed Sep 16 14:53:16 PDT 2026

llvm-ci wrote:

LLVM Buildbot has detected a new failure on builder `intel-sycl-gpu` running on `intel-sycl-gpu-01` while building `llvm` at step 6 "test-build-unified-tree-check-all".

Full details are available at: https://lab.llvm.org/buildbot/#/builders/225/builds/18555

<details>
<summary>Here is the relevant piece of the build log for the reference</summary>

```
Step 6 (test-build-unified-tree-check-all) failure: test (failure)
******************** TEST 'XRay-x86_64-linux :: TestCases/Posix/basic-filtering.cpp' FAILED ********************
Exit Code: 1

Command Output (stdout):
--
# RUN: at line 4
/home/test-user/llvm-buildbot-worker/intel-sycl-gpu/build/./bin/clang  --driver-mode=g++ -fxray-instrument  -m64   -std=c++11 /home/test-user/llvm-buildbot-worker/intel-sycl-gpu/llvm-project/compiler-rt/test/xray/TestCases/Posix/basic-filtering.cpp -o /home/test-user/llvm-buildbot-worker/intel-sycl-gpu/build/runtimes/runtimes-bins/compiler-rt/test/xray/X86_64LinuxConfig/TestCases/Posix/Output/basic-filtering.cpp.tmp -g
# executed command: /home/test-user/llvm-buildbot-worker/intel-sycl-gpu/build/./bin/clang --driver-mode=g++ -fxray-instrument -m64 -std=c++11 /home/test-user/llvm-buildbot-worker/intel-sycl-gpu/llvm-project/compiler-rt/test/xray/TestCases/Posix/basic-filtering.cpp -o /home/test-user/llvm-buildbot-worker/intel-sycl-gpu/build/runtimes/runtimes-bins/compiler-rt/test/xray/X86_64LinuxConfig/TestCases/Posix/Output/basic-filtering.cpp.tmp -g
# RUN: at line 5
rm -f basic-filtering-*
# executed command: rm -f 'basic-filtering-*'
# RUN: at line 6
env XRAY_OPTIONS="patch_premain=true xray_mode=xray-basic verbosity=1      xray_logfile_base=basic-filtering-      xray_naive_log_func_duration_threshold_us=100000      xray_naive_log_max_stack_depth=2"  /home/test-user/llvm-buildbot-worker/intel-sycl-gpu/build/runtimes/runtimes-bins/compiler-rt/test/xray/X86_64LinuxConfig/TestCases/Posix/Output/basic-filtering.cpp.tmp 2>&1 |      FileCheck /home/test-user/llvm-buildbot-worker/intel-sycl-gpu/llvm-project/compiler-rt/test/xray/TestCases/Posix/basic-filtering.cpp
# executed command: env 'XRAY_OPTIONS=patch_premain=true xray_mode=xray-basic verbosity=1      xray_logfile_base=basic-filtering-      xray_naive_log_func_duration_threshold_us=100000      xray_naive_log_max_stack_depth=2' /home/test-user/llvm-buildbot-worker/intel-sycl-gpu/build/runtimes/runtimes-bins/compiler-rt/test/xray/X86_64LinuxConfig/TestCases/Posix/Output/basic-filtering.cpp.tmp
# executed command: FileCheck /home/test-user/llvm-buildbot-worker/intel-sycl-gpu/llvm-project/compiler-rt/test/xray/TestCases/Posix/basic-filtering.cpp
# RUN: at line 11
ls basic-filtering-* | head -1 | tr -d '\n' > /home/test-user/llvm-buildbot-worker/intel-sycl-gpu/build/runtimes/runtimes-bins/compiler-rt/test/xray/X86_64LinuxConfig/TestCases/Posix/Output/basic-filtering.cpp.tmp.log
# executed command: ls 'basic-filtering-*'
# executed command: head -1
# executed command: tr -d '\n'
# RUN: at line 12
/home/test-user/llvm-buildbot-worker/intel-sycl-gpu/build/./bin/llvm-xray convert --symbolize --output-format=yaml -instr_map=/home/test-user/llvm-buildbot-worker/intel-sycl-gpu/build/runtimes/runtimes-bins/compiler-rt/test/xray/X86_64LinuxConfig/TestCases/Posix/Output/basic-filtering.cpp.tmp      "/home/test-user/llvm-buildbot-worker/intel-sycl-gpu/build/runtimes/runtimes-bins/compiler-rt/test/xray/X86_64LinuxConfig/TestCases/Posix/basic-filtering-basic-filtering.cpp.tmp.GfuuZG" |      FileCheck /home/test-user/llvm-buildbot-worker/intel-sycl-gpu/llvm-project/compiler-rt/test/xray/TestCases/Posix/basic-filtering.cpp --check-prefix TRACE
# executed command: /home/test-user/llvm-buildbot-worker/intel-sycl-gpu/build/./bin/llvm-xray convert --symbolize --output-format=yaml -instr_map=/home/test-user/llvm-buildbot-worker/intel-sycl-gpu/build/runtimes/runtimes-bins/compiler-rt/test/xray/X86_64LinuxConfig/TestCases/Posix/Output/basic-filtering.cpp.tmp '%{readfile:/home/test-user/llvm-buildbot-worker/intel-sycl-gpu/build/runtimes/runtimes-bins/compiler-rt/test/xray/X86_64LinuxConfig/TestCases/Posix/Output/basic-filtering.cpp.tmp.log}'
# executed command: FileCheck /home/test-user/llvm-buildbot-worker/intel-sycl-gpu/llvm-project/compiler-rt/test/xray/TestCases/Posix/basic-filtering.cpp --check-prefix TRACE
# RUN: at line 15
rm -f basic-filtering-*
# executed command: rm -f 'basic-filtering-*'
# RUN: at line 18
env XRAY_OPTIONS="patch_premain=true xray_mode=xray-basic verbosity=1      xray_logfile_base=basic-filtering-"  env XRAY_BASIC_OPTIONS="func_duration_threshold_us=100000 max_stack_depth=2"       /home/test-user/llvm-buildbot-worker/intel-sycl-gpu/build/runtimes/runtimes-bins/compiler-rt/test/xray/X86_64LinuxConfig/TestCases/Posix/Output/basic-filtering.cpp.tmp 2>&1 | FileCheck /home/test-user/llvm-buildbot-worker/intel-sycl-gpu/llvm-project/compiler-rt/test/xray/TestCases/Posix/basic-filtering.cpp
# executed command: env 'XRAY_OPTIONS=patch_premain=true xray_mode=xray-basic verbosity=1      xray_logfile_base=basic-filtering-' env 'XRAY_BASIC_OPTIONS=func_duration_threshold_us=100000 max_stack_depth=2' /home/test-user/llvm-buildbot-worker/intel-sycl-gpu/build/runtimes/runtimes-bins/compiler-rt/test/xray/X86_64LinuxConfig/TestCases/Posix/Output/basic-filtering.cpp.tmp
# executed command: FileCheck /home/test-user/llvm-buildbot-worker/intel-sycl-gpu/llvm-project/compiler-rt/test/xray/TestCases/Posix/basic-filtering.cpp
# RUN: at line 22
ls basic-filtering-* | head -1 | tr -d '\n' > /home/test-user/llvm-buildbot-worker/intel-sycl-gpu/build/runtimes/runtimes-bins/compiler-rt/test/xray/X86_64LinuxConfig/TestCases/Posix/Output/basic-filtering.cpp.tmp.log
# executed command: ls 'basic-filtering-*'
# executed command: head -1
# executed command: tr -d '\n'
# RUN: at line 23
/home/test-user/llvm-buildbot-worker/intel-sycl-gpu/build/./bin/llvm-xray convert --symbolize --output-format=yaml -instr_map=/home/test-user/llvm-buildbot-worker/intel-sycl-gpu/build/runtimes/runtimes-bins/compiler-rt/test/xray/X86_64LinuxConfig/TestCases/Posix/Output/basic-filtering.cpp.tmp      "/home/test-user/llvm-buildbot-worker/intel-sycl-gpu/build/runtimes/runtimes-bins/compiler-rt/test/xray/X86_64LinuxConfig/TestCases/Posix/basic-filtering-basic-filtering.cpp.tmp.vZ6cYE" |      FileCheck /home/test-user/llvm-buildbot-worker/intel-sycl-gpu/llvm-project/compiler-rt/test/xray/TestCases/Posix/basic-filtering.cpp --check-prefix TRACE
# executed command: /home/test-user/llvm-buildbot-worker/intel-sycl-gpu/build/./bin/llvm-xray convert --symbolize --output-format=yaml -instr_map=/home/test-user/llvm-buildbot-worker/intel-sycl-gpu/build/runtimes/runtimes-bins/compiler-rt/test/xray/X86_64LinuxConfig/TestCases/Posix/Output/basic-filtering.cpp.tmp '%{readfile:/home/test-user/llvm-buildbot-worker/intel-sycl-gpu/build/runtimes/runtimes-bins/compiler-rt/test/xray/X86_64LinuxConfig/TestCases/Posix/Output/basic-filtering.cpp.tmp.log}'
# executed command: FileCheck /home/test-user/llvm-buildbot-worker/intel-sycl-gpu/llvm-project/compiler-rt/test/xray/TestCases/Posix/basic-filtering.cpp --check-prefix TRACE
# .---command stderr------------
# | /home/test-user/llvm-buildbot-worker/intel-sycl-gpu/llvm-project/compiler-rt/test/xray/TestCases/Posix/basic-filtering.cpp:61:15: error: TRACE-NOT: excluded string found in input
# | // TRACE-NOT: - { type: 0, func-id: {{.*}}, function: {{.*filtered.*}}, {{.*}} }
# |               ^
# | <stdin>:10:2: note: found here
# |  - { type: 0, func-id: 1, function: 'filtered()', cpu: 15, thread: 122295, process: 122295, kind: function-enter, tsc: 911057205802363, data: '' }
# |  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
# | 
# | Input file: <stdin>
# | Check file: /home/test-user/llvm-buildbot-worker/intel-sycl-gpu/llvm-project/compiler-rt/test/xray/TestCases/Posix/basic-filtering.cpp
...

```

</details>

https://github.com/llvm/llvm-project/pull/224104