From: Shuah Khan <skhan@linuxfoundation.org>
To: Prabhakar Kushwaha <prabhakar.pkin@gmail.com>,
Liu Yiding <liuyd.fnst@cn.fujitsu.com>,
Kees Cook <keescook@chromium.org>
Cc: linux-kselftest@vger.kernel.org, Philip Li <philip.li@intel.com>,
Shuah Khan <skhan@linuxfoundation.org>
Subject: Re: [Bug report] "make run_tests -C bpf" hanging forever
Date: Fri, 18 Oct 2019 09:01:57 -0600 [thread overview]
Message-ID: <5a1ffb6f-7c1e-42d9-5927-f46f9b41bc4f@linuxfoundation.org> (raw)
In-Reply-To: <CAJ2QiJKvUXjC+Ejad3eGiaY8F-UVSnWUPyvbZ46LkE7k0kaZZQ@mail.gmail.com>
On 10/18/19 12:56 AM, Prabhakar Kushwaha wrote:
> On Fri, Oct 18, 2019 at 12:12 PM Liu Yiding <liuyd.fnst@cn.fujitsu.com> wrote:
>>
>> CC LKP mainter
>>
>>
>> On 10/18/19 2:32 PM, Liu Yiding wrote:
>>> Hi All.
>>>
>>> The patch 5c069b6dedef "selftests: Move test output to diagnostic
>>> lines" from Apr 24, 2019,
>>>
>>> leads to `make run_tests -C bpf` hanging forever.
>>>
>>>
>>> Bpf includes many subtest, when cmd `make run_tests -C bpf` runs to
>>> test_lwt_seg6local.sh, task will hang and runner.sh never run next
>>> task. I checked ps aux, prefix.pl will never exit.
>>>
>>> ```
>>>
>>> 91058 [ 811.451584] # [25] VAR __license type_id=24 linkage=1
>>> 91059 [ 811.451586]-
>>> 91060 [ 811.455365] # [26] DATASEC license size=0 vlen=1 size == 0
>>> 91061 [ 811.455367]-
>>> 91062 [ 811.457424] #-
>>> 91063 [ 811.457425]-
>>> 91064 [ 811.460912] # selftests: test_lwt_seg6local [PASS]
>>> 91065 [ 811.460914]-
>>> 91066 [ 3620.461986] Thu Oct 17 14:54:05 CST 2019 detected soft_timeout
>>>
>>> ```
>>>
>>> Ignore test_lwt_seg6local and run `make run_tests -C bpf` again, task
>>> will hang on test_tc_tunnel.sh.
>>>
>>>
>>> Kushwaha also meet this issue, `make run_tests -C bpf` hang on
>>> test_lwt_ip_encap.sh (This test failed on my localhost).
>>>
>
> Yes, i also faced this issue on Linux-5.3. if i kill prefix.pl or add
> timeout in prefix.pl, test move ahead.
>
> somehow this issue is not present on Linux 5.4-rc3+. It could be by
> chance and may show on any other version.
>
Kees added timeout in this commit and this went into 5.4-rc3, if recall
correctly.
commit 852c8cbf34d3b3130a05c38064dd98614f97d3a8
Author: Kees Cook <keescook@chromium.org>
selftests/kselftest/runner.sh: Add 45 second timeout per test
Do you see a timed out message from this test though. The test needs
to fixed probably, but this timeout helps bail out.
thanks,
-- Shuah
next prev parent reply other threads:[~2019-10-18 15:02 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-10-18 6:32 [Bug report] "make run_tests -C bpf" hanging forever Liu Yiding
2019-10-18 6:41 ` Liu Yiding
2019-10-18 6:56 ` Prabhakar Kushwaha
2019-10-18 15:01 ` Shuah Khan [this message]
2019-10-21 1:42 ` Liu Yiding
2019-10-18 16:21 ` Kees Cook
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