intermittent issue in wallet_assumeutxo.py, line 251, assert_equal(chainstates[0]['blocks'], START_HEIGHT) , AssertionError: not(211 == 199)

maflcko commented at 3:24 pm on March 2, 2026: member

Is the failure here related to this?

 0396/455 - wallet_assumeutxo.py failed, Duration: 2 s
 1
 2stdout:
 32026-02-28T16:12:48.637327Z TestFramework (INFO): PRNG seed is: 3704802399065086238
 42026-02-28T16:12:48.637849Z TestFramework (INFO): Initializing test directory /Users/runner/work/bitcoin/bitcoin/repo_archive/ci/scratch/test_runner/test_runner_₿_🏃_20260228_155759/wallet_assumeutxo_58
 52026-02-28T16:12:49.548117Z TestFramework (INFO): -- Testing assumeutxo
 62026-02-28T16:12:49.548768Z TestFramework (INFO): Creating a UTXO snapshot at height 299
 72026-02-28T16:12:49.895968Z TestFramework (INFO): Loading snapshot into second node from /Users/runner/work/bitcoin/bitcoin/repo_archive/ci/scratch/test_runner/test_runner_₿_🏃_20260228_155759/wallet_assumeutxo_58/node0/regtest/utxos.dat
 82026-02-28T16:12:49.911552Z TestFramework (INFO): Backup from the snapshot height can be loaded during background sync
 92026-02-28T16:12:49.915983Z TestFramework (INFO): Backup from before the snapshot height can't be loaded during background sync
102026-02-28T16:12:49.919539Z TestFramework (INFO): Backup from the snapshot height can be loaded during background sync (pruned node)
112026-02-28T16:12:49.940587Z TestFramework (INFO): Backup from before the snapshot height can't be loaded during background sync (pruned node)
122026-02-28T16:12:49.944432Z TestFramework (INFO): Test loading descriptors during background sync
132026-02-28T16:12:49.956406Z TestFramework (INFO): Test that rescanning blocks from before the snapshot fails when blocks are not available from the background sync yet
142026-02-28T16:12:49.956860Z TestFramework (INFO): Restarting node to stop at height 359
152026-02-28T16:12:50.947949Z TestFramework (INFO): Restarted node before snapshot validation completed, reloading...
162026-02-28T16:12:51.316321Z TestFramework (INFO): Verify node state after restart during background sync
172026-02-28T16:12:51.316847Z TestFramework (ERROR): Unexpected exception:
18Traceback (most recent call last):
19  File "/Users/runner/work/bitcoin/bitcoin/repo_archive/test/functional/test_framework/test_framework.py", line 142, in main
20    self.run_test()
21    ~~~~~~~~~~~~~^^
22  File "/Users/runner/work/bitcoin/bitcoin/repo_archive/ci/scratch/build-aarch64-apple-darwin24.6.0/test/functional/wallet_assumeutxo.py", line 251, in run_test
23    assert_equal(chainstates[0]['blocks'], START_HEIGHT)
24    ~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
25  File "/Users/runner/work/bitcoin/bitcoin/repo_archive/test/functional/test_framework/util.py", line 80, in assert_equal
26    raise AssertionError("not(%s)" % " == ".join(str(arg) for arg in (thing1, thing2) + args))
27AssertionError: not(211 == 199)
282026-02-28T16:12:51.382295Z TestFramework (INFO): Not stopping nodes as test failed. The dangling processes will be cleaned up later.
292026-02-28T16:12:51.382372Z TestFramework (WARNING): Not cleaning up dir /Users/runner/work/bitcoin/bitcoin/repo_archive/ci/scratch/test_runner/test_runner_₿_🏃_20260228_155759/wallet_assumeutxo_58
302026-02-28T16:12:51.382410Z TestFramework (ERROR): Test failed. Test logging available at /Users/runner/work/bitcoin/bitcoin/repo_archive/ci/scratch/test_runner/test_runner_₿_🏃_20260228_155759/wallet_assumeutxo_58/test_framework.log
312026-02-28T16:12:51.382488Z TestFramework (ERROR): 
322026-02-28T16:12:51.382577Z TestFramework (ERROR): Hint: Call /Users/runner/work/bitcoin/bitcoin/repo_archive/test/functional/combine_logs.py '/Users/runner/work/bitcoin/bitcoin/repo_archive/ci/scratch/test_runner/test_runner_₿_🏃_20260228_155759/wallet_assumeutxo_58' to consolidate all logs
332026-02-28T16:12:51.382609Z TestFramework (ERROR): 
342026-02-28T16:12:51.382634Z TestFramework (ERROR): If this failure happened unexpectedly or intermittently, please file a bug and provide a link or upload of the combined log.
352026-02-28T16:12:51.382680Z TestFramework (ERROR): https://github.com/bitcoin/bitcoin/issues
362026-02-28T16:12:51.382703Z TestFramework (ERROR): 
37
38
39stderr:
40[node 3] Cleaning up leftover process
41[node 2] Cleaning up leftover process
42[node 1] Cleaning up leftover process
43[node 0] Cleaning up leftover process

Originally posted by @sedited in #34354

maflcko added the label CI failed on Mar 2, 2026

maflcko commented at 3:51 pm on March 2, 2026: member

Can be reproduced via:

 0diff --git a/src/node/kernel_notifications.cpp b/src/node/kernel_notifications.cpp
 1index ab0e5ccb69..49384c10b8 100644
 2--- a/src/node/kernel_notifications.cpp
 3+++ b/src/node/kernel_notifications.cpp
 4@@ -59,6 +59,7 @@ kernel::InterruptResult KernelNotifications::blockTip(SynchronizationState state
 5 
 6     uiInterface.NotifyBlockTip(state, index, verification_progress);
 7     if (m_stop_at_height && index.nHeight >= m_stop_at_height) {
 8+        LogInfo("Send shutdown signal after reaching stop height");
 9         if (!m_shutdown_request()) {
10             LogError("Failed to send shutdown signal after reaching stop height\n");
11         }
12diff --git a/src/util/tokenpipe.cpp b/src/util/tokenpipe.cpp
13index c982fa6fc4..8f96ac3124 100644
14--- a/src/util/tokenpipe.cpp
15+++ b/src/util/tokenpipe.cpp
16@@ -2,6 +2,7 @@
17 // Distributed under the MIT software license, see the accompanying
18 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
19 #include <util/tokenpipe.h>
20+#include <util/time.h>
21 
22 #include <bitcoin-build-config.h> // IWYU pragma: keep
23 
24@@ -58,6 +59,7 @@ int TokenPipeEnd::TokenRead()
25     uint8_t token;
26     while (true) {
27         ssize_t result = read(m_fd, &token, 1);
28+        UninterruptibleSleep(10ms);
29         if (result < 0) {
30             // Failure. Check if the read was interrupted by a signal,
31             // in that case retry.

maflcko commented at 8:55 pm on March 3, 2026: member

https://github.com/bitcoin/bitcoin/actions/runs/22634054083/job/65591928346?pr=34662#step:9:18738

achow101 closed this on Mar 4, 2026

achow101 referenced this in commit 4c40a923f0 on Mar 4, 2026

intermittent issue in wallet_assumeutxo.py, line 251, assert_equal(chainstates[0][‘blocks’], START_HEIGHT) , AssertionError: not(211 == 199) #34710