Runaway CPU investigation for python3.14: file not found retry at void CppDeallocPtr<Configuration*>(_object*)

Representative thread backtrace

• Command: /usr/bin/python3 /usr/bin/unattended-upgrade
• Why Fixer classified it this way: The trace keeps retrying file lookups that fail with ENOENT, which suggests a missing-file retry loop.
• Thread summary: thread backtraces show 2 thread(s) around __syscall_cancel_arch () at ..<path>:56 and 1 thread(s) around __ctype_b_loc () at ..<path>:43
• Contention signals: event-loop-wakeups, gdb-stderr: gdb: warning: Couldn't determine a path for the index cache directory. warning: 43 ..<path>: No such file or directory
• Repeated loop: newfstatat -> newfstatat -> newfstatat
• Top syscalls: newfstatat x62634, read x63, lseek x57, fcntl x4
• Package: python3.14-minimal 3.14.7-4
• Kernel: 7.1.8+deb14.1-amd64
• Distribution: debian

__syscall_cancel_arch () at ..<path>:56
0x00007fd4354d09d4 in __internal_syscall_cancel (a1=..., a2=..., a3=..., a4=..., a5=..., a6=..., nr=...) at .<path>:49
0x00007fd4354d0a1d in __syscall_cancel (a1=..., a2=..., a3=..., a4=..., a5=..., a6=..., nr=...) at .<path>:75
0x00007fd43554545e in __GI_ppoll (fds=..., nfds=..., timeout=..., sigmask=...) at ..<path>:42
0x00007fd432ea447e in g_get_monotonic_time_ns () from target:<path>
0x00007fd432ea4d20 in g_main_context_iteration () from target:<path>
0x00007fd432ea4d71 in g_main_context_iteration () from target:<path>
0x00007fd432ed9ea0 in g_private_set () from target:<path>