[==========] Running 8 tests from 1 test suite.
[----------] Global test environment set-up.
[----------] 8 tests from LogCacheTest
[ RUN      ] LogCacheTest.TestAppendAndGetMessages
WARNING: Logging before InitGoogleLogging() is written to STDERR
I20260812 06:37:36.748077 18049 fs_manager.cc:362] Metadata directory not provided
I20260812 06:37:36.748220 18049 fs_manager.cc:368] Using write-ahead log directory (fs_wal_dir) as metadata directory
I20260812 06:37:36.749919 18049 fs_manager.cc:1068] Generated new instance metadata in path /tmp/dist-test-taskLyCATw/test-tmp/log_cache-test.0.LogCacheTest.TestAppendAndGetMessages.1786516656741606-18049-0/fs_root/instance:
uuid: "927fbfee59474ab684f15085eb593f03"
format_stamp: "Formatted at 2026-08-12 06:37:36 on dist-test-slave-gkw7"
I20260812 06:37:36.753754 18049 fs_manager.cc:696] Time spent creating directory manager: real 0.003s	user 0.002s	sys 0.001s
I20260812 06:37:36.755877 18060 log_block_manager.cc:4127] Time spent loading block containers with low live blocks: real 0.000s	user 0.000s	sys 0.000s
I20260812 06:37:36.756450 18049 fs_report.cc:389] FS layout report
--------------------
wal directory: 
metadata directory: 
1 data directories: /tmp/dist-test-taskLyCATw/test-tmp/log_cache-test.0.LogCacheTest.TestAppendAndGetMessages.1786516656741606-18049-0/fs_root/data
Total live blocks: 0
Total live bytes: 0
Total live bytes (after alignment): 0
Total number of LBM containers: 0 (0 full)
Did not check for missing blocks
Did not check for orphaned blocks
Total full LBM containers with extra space: 0 (0 repaired)
Total full LBM container extra space in bytes: 0 (0 repaired)
Total incomplete LBM containers: 0 (0 repaired)
Total LBM partial records: 0 (0 repaired)
Total corrupted LBM metadata records in RocksDB: 0 (0 repaired)
I20260812 06:37:36.756824 18049 fs_manager.cc:730] Time spent opening block manager: real 0.002s	user 0.002s	sys 0.000s
I20260812 06:37:36.756876 18049 fs_manager.cc:647] Opened local filesystem: /tmp/dist-test-taskLyCATw/test-tmp/log_cache-test.0.LogCacheTest.TestAppendAndGetMessages.1786516656741606-18049-0/fs_root
uuid: "927fbfee59474ab684f15085eb593f03"
format_stamp: "Formatted at 2026-08-12 06:37:36 on dist-test-slave-gkw7"
I20260812 06:37:36.757660 18049 log.cc:826] T test-tablet P 927fbfee59474ab684f15085eb593f03: Log is configured to *not* fsync() on all Append() calls
I20260812 06:37:36.761439 18049 hybrid_clock.cc:584] initializing the hybrid clock with 'system_unsync' time source
W20260812 06:37:36.761511 18049 system_unsync_time.cc:38] NTP support is disabled. Clock error bounds will not be accurate. This configuration is not suitable for distributed clusters.
I20260812 06:37:36.761584 18049 hybrid_clock.cc:648] HybridClock initialized: now 1786516656761554 us; error 0 us; skew 500 ppm
[       OK ] LogCacheTest.TestAppendAndGetMessages (22 ms)
[ RUN      ] LogCacheTest.TestAlwaysYieldsAtLeastOneMessage
I20260812 06:37:36.769091 18049 fs_manager.cc:362] Metadata directory not provided
I20260812 06:37:36.769141 18049 fs_manager.cc:368] Using write-ahead log directory (fs_wal_dir) as metadata directory
I20260812 06:37:36.769485 18049 fs_manager.cc:1068] Generated new instance metadata in path /tmp/dist-test-taskLyCATw/test-tmp/log_cache-test.0.LogCacheTest.TestAlwaysYieldsAtLeastOneMessage.1786516656741606-18049-0/fs_root/instance:
uuid: "f32a4632ab274e69bdce77b122d205b9"
format_stamp: "Formatted at 2026-08-12 06:37:36 on dist-test-slave-gkw7"
I20260812 06:37:36.770946 18049 fs_manager.cc:696] Time spent creating directory manager: real 0.001s	user 0.000s	sys 0.001s
I20260812 06:37:36.771786 18064 log_block_manager.cc:4127] Time spent loading block containers with low live blocks: real 0.000s	user 0.000s	sys 0.000s
I20260812 06:37:36.772004 18049 fs_report.cc:389] FS layout report
--------------------
wal directory: 
metadata directory: 
1 data directories: /tmp/dist-test-taskLyCATw/test-tmp/log_cache-test.0.LogCacheTest.TestAlwaysYieldsAtLeastOneMessage.1786516656741606-18049-0/fs_root/data
Total live blocks: 0
Total live bytes: 0
Total live bytes (after alignment): 0
Total number of LBM containers: 0 (0 full)
Did not check for missing blocks
Did not check for orphaned blocks
Total full LBM containers with extra space: 0 (0 repaired)
Total full LBM container extra space in bytes: 0 (0 repaired)
Total incomplete LBM containers: 0 (0 repaired)
Total LBM partial records: 0 (0 repaired)
Total corrupted LBM metadata records in RocksDB: 0 (0 repaired)
I20260812 06:37:36.772142 18049 fs_manager.cc:730] Time spent opening block manager: real 0.001s	user 0.000s	sys 0.001s
I20260812 06:37:36.772193 18049 fs_manager.cc:647] Opened local filesystem: /tmp/dist-test-taskLyCATw/test-tmp/log_cache-test.0.LogCacheTest.TestAlwaysYieldsAtLeastOneMessage.1786516656741606-18049-0/fs_root
uuid: "f32a4632ab274e69bdce77b122d205b9"
format_stamp: "Formatted at 2026-08-12 06:37:36 on dist-test-slave-gkw7"
I20260812 06:37:36.773059 18049 hybrid_clock.cc:584] initializing the hybrid clock with 'system_unsync' time source
W20260812 06:37:36.773123 18049 system_unsync_time.cc:38] NTP support is disabled. Clock error bounds will not be accurate. This configuration is not suitable for distributed clusters.
I20260812 06:37:36.773146 18049 hybrid_clock.cc:648] HybridClock initialized: now 1786516656773145 us; error 0 us; skew 500 ppm
[       OK ] LogCacheTest.TestAlwaysYieldsAtLeastOneMessage (19 ms)
[ RUN      ] LogCacheTest.TestCacheEdgeCases
I20260812 06:37:36.788468 18049 fs_manager.cc:362] Metadata directory not provided
I20260812 06:37:36.788558 18049 fs_manager.cc:368] Using write-ahead log directory (fs_wal_dir) as metadata directory
I20260812 06:37:36.788908 18049 fs_manager.cc:1068] Generated new instance metadata in path /tmp/dist-test-taskLyCATw/test-tmp/log_cache-test.0.LogCacheTest.TestCacheEdgeCases.1786516656741606-18049-0/fs_root/instance:
uuid: "c756ee379f824aeb8f64efbe03a26ff3"
format_stamp: "Formatted at 2026-08-12 06:37:36 on dist-test-slave-gkw7"
I20260812 06:37:36.790423 18049 fs_manager.cc:696] Time spent creating directory manager: real 0.001s	user 0.000s	sys 0.003s
I20260812 06:37:36.791303 18068 log_block_manager.cc:4127] Time spent loading block containers with low live blocks: real 0.000s	user 0.000s	sys 0.000s
I20260812 06:37:36.791510 18049 fs_report.cc:389] FS layout report
--------------------
wal directory: 
metadata directory: 
1 data directories: /tmp/dist-test-taskLyCATw/test-tmp/log_cache-test.0.LogCacheTest.TestCacheEdgeCases.1786516656741606-18049-0/fs_root/data
Total live blocks: 0
Total live bytes: 0
Total live bytes (after alignment): 0
Total number of LBM containers: 0 (0 full)
Did not check for missing blocks
Did not check for orphaned blocks
Total full LBM containers with extra space: 0 (0 repaired)
Total full LBM container extra space in bytes: 0 (0 repaired)
Total incomplete LBM containers: 0 (0 repaired)
Total LBM partial records: 0 (0 repaired)
Total corrupted LBM metadata records in RocksDB: 0 (0 repaired)
I20260812 06:37:36.791666 18049 fs_manager.cc:730] Time spent opening block manager: real 0.001s	user 0.000s	sys 0.001s
I20260812 06:37:36.791715 18049 fs_manager.cc:647] Opened local filesystem: /tmp/dist-test-taskLyCATw/test-tmp/log_cache-test.0.LogCacheTest.TestCacheEdgeCases.1786516656741606-18049-0/fs_root
uuid: "c756ee379f824aeb8f64efbe03a26ff3"
format_stamp: "Formatted at 2026-08-12 06:37:36 on dist-test-slave-gkw7"
I20260812 06:37:36.792557 18049 hybrid_clock.cc:584] initializing the hybrid clock with 'system_unsync' time source
W20260812 06:37:36.792621 18049 system_unsync_time.cc:38] NTP support is disabled. Clock error bounds will not be accurate. This configuration is not suitable for distributed clusters.
I20260812 06:37:36.792645 18049 hybrid_clock.cc:648] HybridClock initialized: now 1786516656792644 us; error 0 us; skew 500 ppm
[       OK ] LogCacheTest.TestCacheEdgeCases (6 ms)
[ RUN      ] LogCacheTest.TestMemoryLimit
I20260812 06:37:36.794975 18049 fs_manager.cc:362] Metadata directory not provided
I20260812 06:37:36.795047 18049 fs_manager.cc:368] Using write-ahead log directory (fs_wal_dir) as metadata directory
I20260812 06:37:36.795324 18049 fs_manager.cc:1068] Generated new instance metadata in path /tmp/dist-test-taskLyCATw/test-tmp/log_cache-test.0.LogCacheTest.TestMemoryLimit.1786516656741606-18049-0/fs_root/instance:
uuid: "6f3af15ac9594f42b436f4f47b828eec"
format_stamp: "Formatted at 2026-08-12 06:37:36 on dist-test-slave-gkw7"
I20260812 06:37:36.796691 18049 fs_manager.cc:696] Time spent creating directory manager: real 0.001s	user 0.003s	sys 0.000s
I20260812 06:37:36.797475 18074 log_block_manager.cc:4127] Time spent loading block containers with low live blocks: real 0.000s	user 0.000s	sys 0.000s
I20260812 06:37:36.797729 18049 fs_report.cc:389] FS layout report
--------------------
wal directory: 
metadata directory: 
1 data directories: /tmp/dist-test-taskLyCATw/test-tmp/log_cache-test.0.LogCacheTest.TestMemoryLimit.1786516656741606-18049-0/fs_root/data
Total live blocks: 0
Total live bytes: 0
Total live bytes (after alignment): 0
Total number of LBM containers: 0 (0 full)
Did not check for missing blocks
Did not check for orphaned blocks
Total full LBM containers with extra space: 0 (0 repaired)
Total full LBM container extra space in bytes: 0 (0 repaired)
Total incomplete LBM containers: 0 (0 repaired)
Total LBM partial records: 0 (0 repaired)
Total corrupted LBM metadata records in RocksDB: 0 (0 repaired)
I20260812 06:37:36.797854 18049 fs_manager.cc:730] Time spent opening block manager: real 0.001s	user 0.001s	sys 0.000s
I20260812 06:37:36.797921 18049 fs_manager.cc:647] Opened local filesystem: /tmp/dist-test-taskLyCATw/test-tmp/log_cache-test.0.LogCacheTest.TestMemoryLimit.1786516656741606-18049-0/fs_root
uuid: "6f3af15ac9594f42b436f4f47b828eec"
format_stamp: "Formatted at 2026-08-12 06:37:36 on dist-test-slave-gkw7"
I20260812 06:37:36.798816 18049 hybrid_clock.cc:584] initializing the hybrid clock with 'system_unsync' time source
W20260812 06:37:36.798858 18049 system_unsync_time.cc:38] NTP support is disabled. Clock error bounds will not be accurate. This configuration is not suitable for distributed clusters.
I20260812 06:37:36.798872 18049 hybrid_clock.cc:648] HybridClock initialized: now 1786516656798872 us; error 0 us; skew 500 ppm
I20260812 06:37:36.800025 18049 log_cache-test.cc:286] appending op 3
[       OK ] LogCacheTest.TestMemoryLimit (7 ms)
[ RUN      ] LogCacheTest.TestGlobalMemoryLimit
I20260812 06:37:36.802366 18049 fs_manager.cc:362] Metadata directory not provided
I20260812 06:37:36.802412 18049 fs_manager.cc:368] Using write-ahead log directory (fs_wal_dir) as metadata directory
I20260812 06:37:36.802719 18049 fs_manager.cc:1068] Generated new instance metadata in path /tmp/dist-test-taskLyCATw/test-tmp/log_cache-test.0.LogCacheTest.TestGlobalMemoryLimit.1786516656741606-18049-0/fs_root/instance:
uuid: "e99b15c8668f437a8c90b18d65a20ec3"
format_stamp: "Formatted at 2026-08-12 06:37:36 on dist-test-slave-gkw7"
I20260812 06:37:36.804039 18049 fs_manager.cc:696] Time spent creating directory manager: real 0.001s	user 0.002s	sys 0.000s
I20260812 06:37:36.804811 18078 log_block_manager.cc:4127] Time spent loading block containers with low live blocks: real 0.000s	user 0.000s	sys 0.000s
I20260812 06:37:36.805032 18049 fs_report.cc:389] FS layout report
--------------------
wal directory: 
metadata directory: 
1 data directories: /tmp/dist-test-taskLyCATw/test-tmp/log_cache-test.0.LogCacheTest.TestGlobalMemoryLimit.1786516656741606-18049-0/fs_root/data
Total live blocks: 0
Total live bytes: 0
Total live bytes (after alignment): 0
Total number of LBM containers: 0 (0 full)
Did not check for missing blocks
Did not check for orphaned blocks
Total full LBM containers with extra space: 0 (0 repaired)
Total full LBM container extra space in bytes: 0 (0 repaired)
Total incomplete LBM containers: 0 (0 repaired)
Total LBM partial records: 0 (0 repaired)
Total corrupted LBM metadata records in RocksDB: 0 (0 repaired)
I20260812 06:37:36.805166 18049 fs_manager.cc:730] Time spent opening block manager: real 0.001s	user 0.001s	sys 0.000s
I20260812 06:37:36.805233 18049 fs_manager.cc:647] Opened local filesystem: /tmp/dist-test-taskLyCATw/test-tmp/log_cache-test.0.LogCacheTest.TestGlobalMemoryLimit.1786516656741606-18049-0/fs_root
uuid: "e99b15c8668f437a8c90b18d65a20ec3"
format_stamp: "Formatted at 2026-08-12 06:37:36 on dist-test-slave-gkw7"
I20260812 06:37:36.806149 18049 hybrid_clock.cc:584] initializing the hybrid clock with 'system_unsync' time source
W20260812 06:37:36.806213 18049 system_unsync_time.cc:38] NTP support is disabled. Clock error bounds will not be accurate. This configuration is not suitable for distributed clusters.
I20260812 06:37:36.806238 18049 hybrid_clock.cc:648] HybridClock initialized: now 1786516656806238 us; error 0 us; skew 500 ppm
[       OK ] LogCacheTest.TestGlobalMemoryLimit (6 ms)
[ RUN      ] LogCacheTest.TestReplaceMessages
I20260812 06:37:36.809185 18049 fs_manager.cc:362] Metadata directory not provided
I20260812 06:37:36.809268 18049 fs_manager.cc:368] Using write-ahead log directory (fs_wal_dir) as metadata directory
I20260812 06:37:36.809662 18049 fs_manager.cc:1068] Generated new instance metadata in path /tmp/dist-test-taskLyCATw/test-tmp/log_cache-test.0.LogCacheTest.TestReplaceMessages.1786516656741606-18049-0/fs_root/instance:
uuid: "be31086f19754fc5b29949d19e785e92"
format_stamp: "Formatted at 2026-08-12 06:37:36 on dist-test-slave-gkw7"
I20260812 06:37:36.810993 18049 fs_manager.cc:696] Time spent creating directory manager: real 0.001s	user 0.000s	sys 0.001s
I20260812 06:37:36.811848 18087 log_block_manager.cc:4127] Time spent loading block containers with low live blocks: real 0.000s	user 0.000s	sys 0.000s
I20260812 06:37:36.812078 18049 fs_report.cc:389] FS layout report
--------------------
wal directory: 
metadata directory: 
1 data directories: /tmp/dist-test-taskLyCATw/test-tmp/log_cache-test.0.LogCacheTest.TestReplaceMessages.1786516656741606-18049-0/fs_root/data
Total live blocks: 0
Total live bytes: 0
Total live bytes (after alignment): 0
Total number of LBM containers: 0 (0 full)
Did not check for missing blocks
Did not check for orphaned blocks
Total full LBM containers with extra space: 0 (0 repaired)
Total full LBM container extra space in bytes: 0 (0 repaired)
Total incomplete LBM containers: 0 (0 repaired)
Total LBM partial records: 0 (0 repaired)
Total corrupted LBM metadata records in RocksDB: 0 (0 repaired)
I20260812 06:37:36.812216 18049 fs_manager.cc:730] Time spent opening block manager: real 0.001s	user 0.000s	sys 0.000s
I20260812 06:37:36.812287 18049 fs_manager.cc:647] Opened local filesystem: /tmp/dist-test-taskLyCATw/test-tmp/log_cache-test.0.LogCacheTest.TestReplaceMessages.1786516656741606-18049-0/fs_root
uuid: "be31086f19754fc5b29949d19e785e92"
format_stamp: "Formatted at 2026-08-12 06:37:36 on dist-test-slave-gkw7"
I20260812 06:37:36.813120 18049 hybrid_clock.cc:584] initializing the hybrid clock with 'system_unsync' time source
W20260812 06:37:36.813185 18049 system_unsync_time.cc:38] NTP support is disabled. Clock error bounds will not be accurate. This configuration is not suitable for distributed clusters.
I20260812 06:37:36.813211 18049 hybrid_clock.cc:648] HybridClock initialized: now 1786516656813210 us; error 0 us; skew 500 ppm
[       OK ] LogCacheTest.TestReplaceMessages (6 ms)
[ RUN      ] LogCacheTest.TestTruncation
I20260812 06:37:36.815929 18049 fs_manager.cc:362] Metadata directory not provided
I20260812 06:37:36.816004 18049 fs_manager.cc:368] Using write-ahead log directory (fs_wal_dir) as metadata directory
I20260812 06:37:36.816316 18049 fs_manager.cc:1068] Generated new instance metadata in path /tmp/dist-test-taskLyCATw/test-tmp/log_cache-test.0.LogCacheTest.TestTruncation.1786516656741606-18049-0/fs_root/instance:
uuid: "2aad14a482b34ede9cd0ee3a36ee855f"
format_stamp: "Formatted at 2026-08-12 06:37:36 on dist-test-slave-gkw7"
I20260812 06:37:36.818197 18049 fs_manager.cc:696] Time spent creating directory manager: real 0.002s	user 0.001s	sys 0.002s
I20260812 06:37:36.819401 18094 log_block_manager.cc:4127] Time spent loading block containers with low live blocks: real 0.000s	user 0.000s	sys 0.000s
I20260812 06:37:36.819635 18049 fs_report.cc:389] FS layout report
--------------------
wal directory: 
metadata directory: 
1 data directories: /tmp/dist-test-taskLyCATw/test-tmp/log_cache-test.0.LogCacheTest.TestTruncation.1786516656741606-18049-0/fs_root/data
Total live blocks: 0
Total live bytes: 0
Total live bytes (after alignment): 0
Total number of LBM containers: 0 (0 full)
Did not check for missing blocks
Did not check for orphaned blocks
Total full LBM containers with extra space: 0 (0 repaired)
Total full LBM container extra space in bytes: 0 (0 repaired)
Total incomplete LBM containers: 0 (0 repaired)
Total LBM partial records: 0 (0 repaired)
Total corrupted LBM metadata records in RocksDB: 0 (0 repaired)
I20260812 06:37:36.819799 18049 fs_manager.cc:730] Time spent opening block manager: real 0.001s	user 0.001s	sys 0.000s
I20260812 06:37:36.819854 18049 fs_manager.cc:647] Opened local filesystem: /tmp/dist-test-taskLyCATw/test-tmp/log_cache-test.0.LogCacheTest.TestTruncation.1786516656741606-18049-0/fs_root
uuid: "2aad14a482b34ede9cd0ee3a36ee855f"
format_stamp: "Formatted at 2026-08-12 06:37:36 on dist-test-slave-gkw7"
I20260812 06:37:36.820778 18049 hybrid_clock.cc:584] initializing the hybrid clock with 'system_unsync' time source
W20260812 06:37:36.820820 18049 system_unsync_time.cc:38] NTP support is disabled. Clock error bounds will not be accurate. This configuration is not suitable for distributed clusters.
I20260812 06:37:36.820835 18049 hybrid_clock.cc:648] HybridClock initialized: now 1786516656820835 us; error 0 us; skew 500 ppm
[       OK ] LogCacheTest.TestTruncation (7 ms)
[ RUN      ] LogCacheTest.TestMTReadAndWrite
I20260812 06:37:36.823232 18049 fs_manager.cc:362] Metadata directory not provided
I20260812 06:37:36.823279 18049 fs_manager.cc:368] Using write-ahead log directory (fs_wal_dir) as metadata directory
I20260812 06:37:36.823544 18049 fs_manager.cc:1068] Generated new instance metadata in path /tmp/dist-test-taskLyCATw/test-tmp/log_cache-test.0.LogCacheTest.TestMTReadAndWrite.1786516656741606-18049-0/fs_root/instance:
uuid: "ed1d57a9836648019ce6337b611a8133"
format_stamp: "Formatted at 2026-08-12 06:37:36 on dist-test-slave-gkw7"
I20260812 06:37:36.824844 18049 fs_manager.cc:696] Time spent creating directory manager: real 0.001s	user 0.001s	sys 0.001s
I20260812 06:37:36.825577 18102 log_block_manager.cc:4127] Time spent loading block containers with low live blocks: real 0.000s	user 0.000s	sys 0.000s
I20260812 06:37:36.825806 18049 fs_report.cc:389] FS layout report
--------------------
wal directory: 
metadata directory: 
1 data directories: /tmp/dist-test-taskLyCATw/test-tmp/log_cache-test.0.LogCacheTest.TestMTReadAndWrite.1786516656741606-18049-0/fs_root/data
Total live blocks: 0
Total live bytes: 0
Total live bytes (after alignment): 0
Total number of LBM containers: 0 (0 full)
Did not check for missing blocks
Did not check for orphaned blocks
Total full LBM containers with extra space: 0 (0 repaired)
Total full LBM container extra space in bytes: 0 (0 repaired)
Total incomplete LBM containers: 0 (0 repaired)
Total LBM partial records: 0 (0 repaired)
Total corrupted LBM metadata records in RocksDB: 0 (0 repaired)
I20260812 06:37:36.825927 18049 fs_manager.cc:730] Time spent opening block manager: real 0.001s	user 0.000s	sys 0.000s
I20260812 06:37:36.825979 18049 fs_manager.cc:647] Opened local filesystem: /tmp/dist-test-taskLyCATw/test-tmp/log_cache-test.0.LogCacheTest.TestMTReadAndWrite.1786516656741606-18049-0/fs_root
uuid: "ed1d57a9836648019ce6337b611a8133"
format_stamp: "Formatted at 2026-08-12 06:37:36 on dist-test-slave-gkw7"
I20260812 06:37:36.826784 18049 hybrid_clock.cc:584] initializing the hybrid clock with 'system_unsync' time source
W20260812 06:37:36.826825 18049 system_unsync_time.cc:38] NTP support is disabled. Clock error bounds will not be accurate. This configuration is not suitable for distributed clusters.
I20260812 06:37:36.826840 18049 hybrid_clock.cc:648] HybridClock initialized: now 1786516656826840 us; error 0 us; skew 500 ppm
W20260812 06:37:39.596890 18055 kernel_stack_watchdog.cc:198] Thread 18109 stuck at /workspace/apache/dev/local/kudu/src/kudu/consensus/log.cc:409 for 147ms:
Kernel stack:
(could not read kernel stack)
User stack:
    @     0x7f95bbb94980  (unknown) at ??:0
    @     0x7f95bc77492b  sys_futex at ??:0
    @     0x7f95bc774ad7  base::internal::SpinLockDelay() at ??:0
    @     0x7f95bc7747b6  base::SpinLock::SlowLock() at ??:0
    @     0x7f95be5f611f  base::SpinLock::Lock() at ??:0
    @     0x7f95be5f6dde  kudu::simple_spinlock::lock() at ??:0
    @     0x7f95be601fce  std::lock_guard<>::lock_guard() at ??:0
    @     0x7f95bde44899  kudu::consensus::LogCache::LogCallback() at ??:0
    @     0x7f95bde43cff  _ZZN4kudu9consensus8LogCache16AppendOperationsESt6vectorI13scoped_refptrINS0_19RefCountedReplicateEESaIS5_EERKSt8functionIFvRKNS_6StatusEEEENKUlSB_E_clESB_ at ??:0
    @     0x7f95bde47eff  _ZNSt17_Function_handlerIFvRKN4kudu6StatusEEZNS0_9consensus8LogCache16AppendOperationsESt6vectorI13scoped_refptrINS5_19RefCountedReplicateEESaISA_EERKSt8functionIS4_EEUlS3_E_E9_M_invokeERKSt9_Any_dataS3_ at ??:0
    @     0x7f95bde26711  std::function<>::operator()() at ??:0
    @     0x7f95bea203c6  kudu::log::LogEntryBatch::RunCallback() at ??:0
    @     0x7f95bea11238  kudu::log::Log::AppendThread::HandleBatches() at ??:0
    @     0x7f95bea10694  kudu::log::Log::AppendThread::ProcessQueue() at ??:0
    @     0x7f95bea0fd2b  _ZZN4kudu3log3Log12AppendThread4WakeEvENKUlvE_clEv at ??:0
    @     0x7f95bea1ca52  _ZNSt17_Function_handlerIFvvEZN4kudu3log3Log12AppendThread4WakeEvEUlvE_E9_M_invokeERKSt9_Any_data at ??:0
W20260812 06:37:41.633074 18055 kernel_stack_watchdog.cc:198] Thread 18109 stuck at /workspace/apache/dev/local/kudu/src/kudu/consensus/log.cc:409 for 198ms:
Kernel stack:
(could not read kernel stack)
User stack:
    @     0x7f95bbb94980  (unknown) at ??:0
    @     0x7f95bc77492b  sys_futex at ??:0
    @     0x7f95bc774b64  base::internal::SpinLockWake() at ??:0
    @     0x7f95bc77480d  base::SpinLock::SlowUnlock() at ??:0
    @     0x7f95be5f615f  base::SpinLock::Unlock() at ??:0
    @     0x7f95be5f6dfa  kudu::simple_spinlock::unlock() at ??:0
    @     0x7f95be601fed  std::lock_guard<>::~lock_guard() at ??:0
    @     0x7f95bde44a72  kudu::consensus::LogCache::LogCallback() at ??:0
    @     0x7f95bde43cff  _ZZN4kudu9consensus8LogCache16AppendOperationsESt6vectorI13scoped_refptrINS0_19RefCountedReplicateEESaIS5_EERKSt8functionIFvRKNS_6StatusEEEENKUlSB_E_clESB_ at ??:0
    @     0x7f95bde47eff  _ZNSt17_Function_handlerIFvRKN4kudu6StatusEEZNS0_9consensus8LogCache16AppendOperationsESt6vectorI13scoped_refptrINS5_19RefCountedReplicateEESaISA_EERKSt8functionIS4_EEUlS3_E_E9_M_invokeERKSt9_Any_dataS3_ at ??:0
    @     0x7f95bde26711  std::function<>::operator()() at ??:0
    @     0x7f95bea203c6  kudu::log::LogEntryBatch::RunCallback() at ??:0
    @     0x7f95bea11238  kudu::log::Log::AppendThread::HandleBatches() at ??:0
    @     0x7f95bea10694  kudu::log::Log::AppendThread::ProcessQueue() at ??:0
    @     0x7f95bea0fd2b  _ZZN4kudu3log3Log12AppendThread4WakeEvENKUlvE_clEv at ??:0
    @     0x7f95bea1ca52  _ZNSt17_Function_handlerIFvvEZN4kudu3log3Log12AppendThread4WakeEvEUlvE_E9_M_invokeERKSt9_Any_data at ??:0
W20260812 06:37:45.270943 18055 kernel_stack_watchdog.cc:198] Thread 18109 stuck at /workspace/apache/dev/local/kudu/src/kudu/consensus/log.cc:409 for 137ms:
Kernel stack:
(could not read kernel stack)
User stack:
    @     0x7f95bbb94980  (unknown) at ??:0
    @     0x7f95bc77492b  sys_futex at ??:0
    @     0x7f95bc774b64  base::internal::SpinLockWake() at ??:0
    @     0x7f95bc77480d  base::SpinLock::SlowUnlock() at ??:0
    @     0x7f95be5f615f  base::SpinLock::Unlock() at ??:0
    @     0x7f95be5f6dfa  kudu::simple_spinlock::unlock() at ??:0
    @     0x7f95be601fed  std::lock_guard<>::~lock_guard() at ??:0
    @     0x7f95bde44a72  kudu::consensus::LogCache::LogCallback() at ??:0
    @     0x7f95bde43cff  _ZZN4kudu9consensus8LogCache16AppendOperationsESt6vectorI13scoped_refptrINS0_19RefCountedReplicateEESaIS5_EERKSt8functionIFvRKNS_6StatusEEEENKUlSB_E_clESB_ at ??:0
    @     0x7f95bde47eff  _ZNSt17_Function_handlerIFvRKN4kudu6StatusEEZNS0_9consensus8LogCache16AppendOperationsESt6vectorI13scoped_refptrINS5_19RefCountedReplicateEESaISA_EERKSt8functionIS4_EEUlS3_E_E9_M_invokeERKSt9_Any_dataS3_ at ??:0
    @     0x7f95bde26711  std::function<>::operator()() at ??:0
    @     0x7f95bea203c6  kudu::log::LogEntryBatch::RunCallback() at ??:0
    @     0x7f95bea11238  kudu::log::Log::AppendThread::HandleBatches() at ??:0
    @     0x7f95bea10694  kudu::log::Log::AppendThread::ProcessQueue() at ??:0
    @     0x7f95bea0fd2b  _ZZN4kudu3log3Log12AppendThread4WakeEvENKUlvE_clEv at ??:0
    @     0x7f95bea1ca52  _ZNSt17_Function_handlerIFvvEZN4kudu3log3Log12AppendThread4WakeEvEUlvE_E9_M_invokeERKSt9_Any_data at ??:0
W20260812 06:37:45.503415 18055 kernel_stack_watchdog.cc:198] Thread 18109 stuck at /workspace/apache/dev/local/kudu/src/kudu/consensus/log.cc:409 for 368ms:
Kernel stack:
(could not read kernel stack)
User stack:
    @     0x7f95bbb94980  (unknown) at ??:0
    @     0x7f95bc77492b  sys_futex at ??:0
    @     0x7f95bc774ad7  base::internal::SpinLockDelay() at ??:0
    @     0x7f95bc7747b6  base::SpinLock::SlowLock() at ??:0
    @     0x7f95be5f611f  base::SpinLock::Lock() at ??:0
    @     0x7f95be5f6dde  kudu::simple_spinlock::lock() at ??:0
    @     0x7f95be601fce  std::lock_guard<>::lock_guard() at ??:0
    @     0x7f95bde44899  kudu::consensus::LogCache::LogCallback() at ??:0
    @     0x7f95bde43cff  _ZZN4kudu9consensus8LogCache16AppendOperationsESt6vectorI13scoped_refptrINS0_19RefCountedReplicateEESaIS5_EERKSt8functionIFvRKNS_6StatusEEEENKUlSB_E_clESB_ at ??:0
    @     0x7f95bde47eff  _ZNSt17_Function_handlerIFvRKN4kudu6StatusEEZNS0_9consensus8LogCache16AppendOperationsESt6vectorI13scoped_refptrINS5_19RefCountedReplicateEESaISA_EERKSt8functionIS4_EEUlS3_E_E9_M_invokeERKSt9_Any_dataS3_ at ??:0
    @     0x7f95bde26711  std::function<>::operator()() at ??:0
    @     0x7f95bea203c6  kudu::log::LogEntryBatch::RunCallback() at ??:0
    @     0x7f95bea11238  kudu::log::Log::AppendThread::HandleBatches() at ??:0
    @     0x7f95bea10694  kudu::log::Log::AppendThread::ProcessQueue() at ??:0
    @     0x7f95bea0fd2b  _ZZN4kudu3log3Log12AppendThread4WakeEvENKUlvE_clEv at ??:0
    @     0x7f95bea1ca52  _ZNSt17_Function_handlerIFvvEZN4kudu3log3Log12AppendThread4WakeEvEUlvE_E9_M_invokeERKSt9_Any_data at ??:0
[       OK ] LogCacheTest.TestMTReadAndWrite (12728 ms)
[----------] 8 tests from LogCacheTest (12805 ms total)

[----------] Global test environment tear-down
[==========] 8 tests from 1 test suite ran. (12805 ms total)
[  PASSED  ] 8 tests.
