netdev - Re: [PATCH bpf-next v4 1/2] bpf: extend stackmap to save binary_build

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Message-ID: <97bb9fff-beda-6ace-8ed2-57f1f2de8c69@fb.com>
Date:   Mon, 12 Mar 2018 14:00:17 -0700
From:   Alexei Starovoitov <ast@...com>
To:     Song Liu <songliubraving@...com>, <netdev@...r.kernel.org>,
        <ast@...nel.org>, <peterz@...radead.org>, <daniel@...earbox.net>
CC:     <kernel-team@...com>, <hannes@...xchg.org>, <qinteng@...com>
Subject: Re: [PATCH bpf-next v4 1/2] bpf: extend stackmap to save
 binary_build_id+offset instead of address

On 3/12/18 1:39 PM, Song Liu wrote:
> +	page = find_get_page(vma->vm_file->f_mapping, 0);

did you test it with config_debug_atomic_sleep ?
it should have complained...