From: Mirsad Todorovac <mirsad.todorovac@xxxxxxxxxxxx>
Date: Mon, 7 Aug 2023 21:44:41 +0200
> Hi all,
>
> In the kernel 6.5-rc5 build on Ubuntu 22.04 LTS (jammy jellyfish) on a Ryzen 7950 assembled box,
> vanilla torvalds tree kernel, the test test_unix_oob unexpectedly fails:
>
> # selftests: net/af_unix: test_unix_oob
> # Test 2 failed, sigurg 23 len 63 OOB %
>
> It is this code:
>
> /* Test 2:
> * Verify that the first OOB is over written by
> * the 2nd one and the first OOB is returned as
> * part of the read, and sigurg is received.
> */
> wait_for_data(pfd, POLLIN | POLLPRI);
> len = 0;
> while (len < 70)
> len = recv(pfd, buf, 1024, MSG_PEEK);
> len = read_data(pfd, buf, 1024);
> read_oob(pfd, &oob);
> if (!signal_recvd || len != 127 || oob != '#') {
> fprintf(stderr, "Test 2 failed, sigurg %d len %d OOB %c\n",
> signal_recvd, len, oob);
> die(1);
> }
>
> In 6.5-rc4, this test was OK, so it might mean we have a regression?
Thanks for reporting.
I confirmed the test doesn't fail on net-next at least, but it's based
on v6.5-rc4.
---8<---
[root@localhost ~]# ./test_unix_oob
[root@localhost ~]# echo $?
0
[root@localhost ~]# uname -r
6.5.0-rc4-01192-g66244337512f
---8<---
I'll check 6.5-rc5 later.
>
> marvin@defiant:~/linux/kernel/linux_torvalds$ grep test_unix_oob ../kselftest-6.5-rc4-1.log
> /net/af_unix/test_unix_oob
> # selftests: net/af_unix: test_unix_oob
> ok 2 selftests: net/af_unix: test_unix_oob
> marvin@defiant:~/linux/kernel/linux_torvalds$
>
> Hope this helps.
>
> NOTE: the kernel is vanilla torvalds tree, only "dirty" because the selftests were modified.
>
> Kind regards,
> Mirsad Todorovac
