It was reported [1] that NonStop platform does not have /dev/zero. The test uses /dev/zero as a dummy input. Passing case (http-backed failed because of too big input size) should not be reading anything from it. If http-backend would erroneously try to read any data returning EOF probably would be even safer than providing some meaningless data. Replace /dev/zero with /dev/null to avoid issues with platforms which do not have /dev/zero. [1] https://public-inbox.org/git/20190209185930.5256-4-randall.s.becker@xxxxxxxxxx/ Reported-by: Randall S. Becker <rsbecker@xxxxxxxxxxxxx> Signed-off-by: Max Kirillov <max@xxxxxxxxxx> --- By the way, I don't think this requires such sofisticated fix. In the success case the input would not be read at all. You could replace it with /dev/null, the in failure (not immediate fail) git would fail due to truncated input or something. Also, as you experience hang issue [2] in earlier tests, this one should not have contributed to it. [2] https://public-inbox.org/git/001901d4c22b$194bfe60$4be3fb20$@nexbridge.com/ t/t5562-http-backend-content-length.sh | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/t/t5562-http-backend-content-length.sh b/t/t5562-http-backend-content-length.sh index 90d890d02f..436c261c86 100755 --- a/t/t5562-http-backend-content-length.sh +++ b/t/t5562-http-backend-content-length.sh @@ -150,7 +150,7 @@ test_expect_success 'CONTENT_LENGTH overflow ssite_t' ' GIT_HTTP_EXPORT_ALL=TRUE \ REQUEST_METHOD=POST \ CONTENT_LENGTH="$NOT_FIT_IN_SSIZE" \ - git http-backend </dev/zero >/dev/null 2>err && + git http-backend </dev/null >/dev/null 2>err && grep "fatal:.*CONTENT_LENGTH" err ' -- 2.19.0.1202.g68e1e8f04e