netdev - Re: [PATCH net] selftests: rtnetlink: try double sleep to give WQ a chance

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] [day] [month] [year] [list]

Message-ID: <20250714153054.07b2095e@kernel.org>
Date: Mon, 14 Jul 2025 15:30:54 -0700
From: Jakub Kicinski <kuba@...nel.org>
To: Hangbin Liu <liuhangbin@...il.com>
Cc: davem@...emloft.net, netdev@...r.kernel.org, edumazet@...gle.com,
 pabeni@...hat.com, andrew+netdev@...n.ch, horms@...nel.org,
 shuah@...nel.org, linux-kselftest@...r.kernel.org
Subject: Re: [PATCH net] selftests: rtnetlink: try double sleep to give WQ a
 chance

On Mon, 14 Jul 2025 07:19:09 +0000 Hangbin Liu wrote:
> > > How about use slowwait to check if the address still exists.  
> > 
> > Weirdly if we read the addresses twice they disappear, I haven't looked
> > into the code for the why, but seemed like using slowwait could
> > potentially mask the addresses sticking around when nobody runs 
> > the Netlink handlers for a while? Dunno..  
> 
> Not sure if I understand correctly. Do you mean the addresses will keep there
> if we use slowwait?

No, I mean there may be false negatives, not false positive.
But maybe it's fine, it will definitely prevent flakes.
Could you post the slowwait patch officially?
-- 
pw-bot: cr