From: Sergey Kaplun <skaplun@tarantool.org>
To: Sergey Bronnikov <sergeyb@tarantool.org>, Evgeniy Temirgaleev <e.temirgaleev@tarantool.org>
Cc: tarantool-patches@dev.tarantool.org, Sergey Kaplun <skaplun@tarantool.org>
Date: Thursday, July 2, 2026 5:28 PM +03:00
 

RED OS for some reason sets `errno` to 2 ENOENT ("No such file or
directory") after the call to `mktime()`. So just skip the test for it.
---

Branch: https://github.com/tarantool/luajit/tree/skaplun/fix-os-time-test-redos
Failed workflow: https://github.com/tarantool/tarantool/actions/runs/28585213455/job/84775371860?pr=12886#step:5:20692

Side note: The errno is set for __any__ call to the `mktime()`.

Tested inside the following Docker:

===================================================================
FROM registry.red-soft.ru/ubi8/ubi-minimal:latest

RUN dnf update -y && \
dnf install -y cmake vim make git curl gcc g++ gdb man && \
dnf clean all
===================================================================

| docker build . --tag redos
| docker run --network=host -ti redos bash

Then clone LuaJIT and proceed as usual.

With the patch the test skipped:
| 1..0 # SKIP RedOS incrorrect behaviour for mktime

.../lj-1470-os-time-epoch-minus-1s.test.lua | 18 +++++++++++++++++-
1 file changed, 17 insertions(+), 1 deletion(-)

diff --git a/test/tarantool-tests/lj-1470-os-time-epoch-minus-1s.test.lua b/test/tarantool-tests/lj-1470-os-time-epoch-minus-1s.test.lua
index dfe1ee11..ebfe6f22 100644
--- a/test/tarantool-tests/lj-1470-os-time-epoch-minus-1s.test.lua
+++ b/test/tarantool-tests/lj-1470-os-time-epoch-minus-1s.test.lua
@@ -1,9 +1,25 @@
local tap = require('tap')

+local function detect_redos()
+ local read_file = require('utils').tools.read_file
+ local hasfile, data = pcall(read_file, '/etc/os-release')
+ if not hasfile then
+ -- Not Linux probably, so not the Red OS.
+ return false
+ else
+ return data:match('RED OS')
+ end
+end
+
-- The test file demonstrates os.time() fail to return -1 time
-- value.
-- See also: https://github.com/LuaJIT/LuaJIT/issues/1470.
-local test = tap.test('lj-1470-os-time-epoch-minus-1s')
+local test = tap.test('lj-1470-os-time-epoch-minus-1s'):skipcond({
+ -- XXX: RED OS for some reason sets `errno` to 2 ENOENT ("No
+ -- such file or directory") after the call to `mktime()`. So
+ -- just skip the test for it.
+ ['RED OS incrorrect behaviour for mktime'] = detect_redos(),
+})

test:plan(1)

--
2.54.0