On Apr 10, 2023 / 16:06, alan.adamson@xxxxxxxxxx wrote: [...] > I've been able to reproduce it. The sleep .1 helps but doesn't eliminate > the issue. I did notice whenever there was a failure, there was also a > "blk_print_req_error: 2 callbacks suppressed" in the log which would break > the parsing the test needs to do. Ah, I see. The error messages were no printed because pr_err_ratelimited() suppressed them. AFAIK, there is no way to disable or relax the rate limit from userland. I think sleep for 5 = DEFAULT_RATE_LIMIT seconds at the beginning of the test will ensure the error message printed. It will also avoid the "x callbacks suppressed" messages. With the change below, I observe no failure on my system. diff --git a/tests/nvme/039 b/tests/nvme/039 index 11d6d24..5d76297 100755 --- a/tests/nvme/039 +++ b/tests/nvme/039 @@ -139,6 +139,9 @@ test_device() { _nvme_err_inject_setup "${ns_dev}" "${ctrl_dev}" + # wait DEFAULT_RATELIMIT_INTERVAL=5 seconds to ensure errors are printed + sleep 5 + inject_unrec_read_on_read "${ns_dev}" inject_invalid_status_on_read "${ns_dev}" inject_write_fault_on_write "${ns_dev}"