lists  /  announce  owl-users  owl-dev  john-users  john-dev  passwdqc-users  yescrypt  popa3d-users  /  oss-security  kernel-hardening  musl  sabotage  tlsify  passwords  /  crypt-dev  xvendor  /  Bugtraq  Full-Disclosure  linux-kernel  linux-netdev  linux-ext4  linux-hardening  PHC 
Open Source and information security mailing list archives
Hash Suite: Windows password security audit tool. GUI, reports in PDF.
[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]
Date:   Wed, 2 Dec 2020 18:54:46 -0800
From:   Alexei Starovoitov <>
To:     Roman Gushchin <>
Cc:     bpf <>, Alexei Starovoitov <>,
        Daniel Borkmann <>,
        Network Development <>,
        Andrii Nakryiko <>,
        Andrew Morton <>,
        linux-mm <>,
        LKML <>,
        Kernel Team <>
Subject: Re: [PATCH bpf-next v9 00/34] bpf: switch to memcg-based memory accounting

On Tue, Dec 1, 2020 at 1:59 PM Roman Gushchin <> wrote:
> 5) Cryptic -EPERM is returned on exceeding the limit. Libbpf even had
>    a function to "explain" this case for users.
> v9:
>   - always charge the saved memory cgroup, by Daniel, Toke and Alexei
>   - added bpf_map_kzalloc()
>   - rebase and minor fixes

This looks great. Applied.
Please follow up with a change to libbpf's pr_perm_msg().
That helpful warning should stay for old kernels, but it would be
misleading for new kernels.
libbpf probably needs a feature check to make this warning conditional.


Powered by blists - more mailing lists