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init: clamp fd limits to int

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When setting the fd limit to 1 >> 31, the node fails to start:

ulimit -n 214748364
build/bin/bitcoind
Error: Not enough file descriptors available. -2147483648 available, 160 required.

Similar to the previous commit, this is fixed by capping the limit
to std::numeric_limits<int>::max().

Co-authored-by: Luke Dashjr <luke-jr+git@utopios.org>
This commit is contained in:
Sjors Provoost
2026-03-31 10:21:18 +02:00
parent 4afbabdcef
commit 8ab4b9fc85
2 changed files with 15 additions and 3 deletions
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10
test/functional/feature_init.py
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@@ -348,6 +348,15 @@ class InitTest(BitcoinTestFramework):
self.log.info("Testing node startup with RLIM_INFINITY fd limit")
self.restart_node_with_fd_limit(self.RLIM_INFINITY)
def init_rlimit_large_test(self):
"""Test that bitcoind starts correctly when the soft RLIMIT_NOFILE limit is above INT_MAX."""
if self.RLIM_INFINITY is None:
self.log.info("Skipping: resource module not available")
return
self.log.info("Testing node startup with fd limit above INT_MAX")
self.restart_node_with_fd_limit(1 << 31)
def run_test(self):
self.init_pid_test()
self.init_stress_test_interrupt()
@@ -355,6 +364,7 @@ class InitTest(BitcoinTestFramework):
self.break_wait_test()
self.init_empty_test()
self.init_rlimit_test()
self.init_rlimit_large_test()
if __name__ == '__main__':