[mainline] selftests/bpf: struct_ops_assoc test hangs indefinitely on PowerPC
From: Venkat Rao Bagalkote <hidden>
Date: 2026-05-29 13:52:56
Also in:
bpf, lkml, netdev
Greetings!!! The struct_ops_assoc/st_ops_assoc_in_timer selftest hangs indefinitely on PowerPC, spinning in sched_yield() until watchdog timeout. **Test Failure:** ./test_progs -t struct_ops_assoc WATCHDOG: test case struct_ops_assoc/st_ops_assoc_in_timer executes for 10 seconds... WATCHDOG: test case struct_ops_assoc/st_ops_assoc_in_timer executes for 120 seconds, terminating with SIGSEGV #445 struct_ops_assoc:FAIL **Architecture:** PowerPC 64-bit (ppc64le) **Kernel:** 7.1.0-rc5-00149-g8fde5d1d47f6 **Symptoms:** Test hangs indefinitely in infinite loop, repeatedly calling sched_yield(): Stack trace: ./test_progs(crash_handler+0x34) linux-vdso64.so.1(__kernel_sigtramp_rt64+0x0) /lib64/libc.so.6(__sched_yield+0x2c) ← stuck here ./test_progs() [0x105ae220] ./test_progs(test_struct_ops_assoc+0x88) ./test_progs(main+0x7ac) If you happen to fix this, please add below tag. Reported-by: Venkat Rao Bagalkote <redacted> Regards, Venkat.