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From: Alexei Starovoitov <ast@fb.com>
To: Yonghong Song <yhs@fb.com>,
	Alexei Starovoitov <alexei.starovoitov@gmail.com>,
	<davem@davemloft.net>
Cc: <daniel@iogearbox.net>, <josef@toxicpanda.com>,
	<bpoirier@suse.com>, <akpm@linux-foundation.org>,
	<hannes@cmpxchg.org>, <netdev@vger.kernel.org>,
	<bpf@vger.kernel.org>, <kernel-team@fb.com>
Subject: Re: [PATCH v3 bpf-next 5/5] selftests/bpf: Add sleepable tests
Date: Mon, 31 Aug 2020 09:56:59 -0700	[thread overview]
Message-ID: <2b52935f-1592-0720-1a0e-71c97e42a7d8@fb.com> (raw)
In-Reply-To: <d6528f9e-088b-725d-273e-a4f1d8a38f11@fb.com>

On 8/29/20 5:22 PM, Yonghong Song wrote:
>> LOCKDEP=y
>> DEBUG_ATOMIC_SLEEP=y
>> LOCK_DEBUGGING_SUPPORT=y
>> KASAN=y
>> in my .config and don't see it :(
>> Could pls send me your .config?
> 
> The config file is attached. In my environment, the warning is only
> printed out during the first run of `./test_progs -t lsm`. All later
> runs did not have this warning.

Thanks. Turned out LOCKDEP=y and DEBUG_ATOMIC_SLEEP=y wasn't enough.
My config was missing PROVE_LOCKING=y.

  reply	other threads:[~2020-08-31 16:57 UTC|newest]

Thread overview: 19+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-08-27 22:01 [PATCH v3 bpf-next 0/5] bpf: Introduce minimal support for sleepable progs Alexei Starovoitov
2020-08-27 22:01 ` [PATCH v3 bpf-next 1/5] mm/error_inject: Fix allow_error_inject function signatures Alexei Starovoitov
2020-08-27 23:58   ` Josef Bacik
2020-08-28 20:27   ` Daniel Borkmann
2020-08-29 22:47     ` Alexei Starovoitov
2020-08-27 22:01 ` [PATCH v3 bpf-next 2/5] bpf: Introduce sleepable BPF programs Alexei Starovoitov
2020-08-27 22:28   ` KP Singh
2020-08-28  1:01   ` Josef Bacik
2020-08-31 14:51   ` Björn Töpel
2020-08-31 16:26     ` Alexei Starovoitov
2020-08-27 22:01 ` [PATCH v3 bpf-next 3/5] bpf: Add bpf_copy_from_user() helper Alexei Starovoitov
2020-08-27 22:29   ` KP Singh
2020-08-27 22:01 ` [PATCH v3 bpf-next 4/5] libbpf: support sleepable progs Alexei Starovoitov
2020-08-27 22:01 ` [PATCH v3 bpf-next 5/5] selftests/bpf: Add sleepable tests Alexei Starovoitov
2020-08-29 22:13   ` Yonghong Song
2020-08-29 22:38     ` Alexei Starovoitov
2020-08-30  0:22       ` Yonghong Song
2020-08-31 16:56         ` Alexei Starovoitov [this message]
2020-08-28 20:10 ` [PATCH v3 bpf-next 0/5] bpf: Introduce minimal support for sleepable progs Daniel Borkmann

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