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
| ||
|
Date: Wed, 12 Aug 2015 10:46:25 -0700 From: Eric Dumazet <eric.dumazet@...il.com> To: Sorin Dumitru <sorin@...urnze.ro> Cc: Calvin Owens <calvinowens@...com>, Sorin Dumitru <sdumitru@...acom.com>, David Miller <davem@...emloft.net>, kuznet@....inr.ac.ru, jmorris@...ei.org, yoshfuji@...ux-ipv6.org, kaber@...sh.net, netdev <netdev@...r.kernel.org>, linux-kernel@...r.kernel.org, kernel-team@...com Subject: Re: [PATCH] net: Use SK_MEM_QUANTUM as minimum for tcp/udp rmem/wmem On Wed, 2015-08-12 at 20:00 +0300, Sorin Dumitru wrote: > Would clamping the values to a min value, like setsockopt(SO_SNDBUF) > does, be an option? > I still find it odd that SO_SNDBUF limits you, while the /proc > interface doesn't. If you think it's > too much, I'm ok with reverting it since it affects scripts. > > On those arches where PAGE_SIZE == 64K(or > 16K) it looks like we have > tcp_wmem[1] > smaller than tcp_wmem[0]. Shouldn't we do something about this? As long as we do not crash if/when root user changes /proc/sys/net settings, we are good. I would not care if performance is bad if root does something really stupid. root user is supposed to not mess things just for fun. -- To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
Powered by blists - more mailing lists