The delay set by --delay_us on the fault_inject target is lost in two ways. Its timespec is read after it has gone out of scope, which makes generic_06 fail, and any other completion on the ring ends it early when more than one I/O is in flight. Patch 1 keeps the timespec alive until the SQE is submitted, and patch 2 makes the delay a pure timeout.
With both patches, a 1 s delay holds every I/O for 1.000 s at queue depth 4. Signed-off-by: Qiliang Yuan <[email protected]> --- Qiliang Yuan (2): selftests: ublk: don't keep the fault_inject timespec on the stack selftests: ublk: make the fault_inject delay a pure timeout tools/testing/selftests/ublk/fault_inject.c | 14 ++++++++------ 1 file changed, 8 insertions(+), 6 deletions(-) --- base-commit: e1274a6bc40a4618f6fbaebbdc51cca865d51bed change-id: 20261008-bug-ublk-selftest-fault-inject-delay-46ea414ba226 Best regards, -- Qiliang Yuan <[email protected]>
