linux-kernel - Re: [PATCH v2 2/3] kfence: maximize allocation wait timeout duration

lists.openwall.net		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 linux-cve-announce 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]

Message-ID: <CANpmjNNXiuQbjMBP=5+uZRNAiduV7v067pPmAgsYzSPpR8Y2yg@mail.gmail.com>
Date:   Thu, 16 Sep 2021 10:49:27 +0200
From:   Marco Elver <elver@...gle.com>
To:     Kefeng Wang <wangkefeng.wang@...wei.com>
Cc:     akpm@...ux-foundation.org, glider@...gle.com, dvyukov@...gle.com,
        jannh@...gle.com, mark.rutland@....com,
        linux-kernel@...r.kernel.org, linux-mm@...ck.org,
        kasan-dev@...glegroups.com, hdanton@...a.com
Subject: Re: [PATCH v2 2/3] kfence: maximize allocation wait timeout duration

On Thu, 16 Sept 2021 at 03:20, Kefeng Wang <wangkefeng.wang@...wei.com> wrote:
> Hi Marco,
>
> We found kfence_test will fails  on ARM64 with this patch with/without
> CONFIG_DETECT_HUNG_TASK,
>
> Any thought ?

Please share log and instructions to reproduce if possible. Also, if
possible, please share bisection log that led you to this patch.

I currently do not see how this patch would cause that, it only
increases the timeout duration.

I know that under QEMU TCG mode, there are occasionally timeouts in
the test simply due to QEMU being extremely slow or other weirdness.