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]
Date:	Wed, 31 Aug 2011 08:45:33 +0200
From:	Jiri Slaby <jslaby@...e.cz>
To:	Andrew Morton <akpm@...ux-foundation.org>
CC:	Andi Kleen <ak@...ux.intel.com>, Andi Kleen <andi@...stfloor.org>,
	linux-kernel@...r.kernel.org, eric.dumazet@...il.com
Subject: Re: [PATCH 2/4] posix-timers: limit the number of posix timers per
 process

On 08/31/2011 01:02 AM, Andrew Morton wrote:
> On Tue, 30 Aug 2011 15:47:47 -0700
> Andi Kleen<ak@...ux.intel.com>  wrote:
>
>>
>>> Yes, deployment for new rlimits is a big PITA.  It would be sensible to
>>> modify the shells to take some anonymous numeric argument, so you could
>>> do
>>>
>>> 	ulimit 42 1000
>>>
>>> to set rlimit number 42 if your shell version doesn't understand the
>>> symbolic representation of more recent additions.  Who do I call?
>>
>> I guess sending a patch to the bash maintainers?
>>
>
> That would help ;)  And all the other shells :(
>
> It would be worth going back and taking another look at the writable
> /proc/<pid>/limits patches (http://lwn.net/Articles/365732/).  Why
> didn't that work get merged?

This turned out to be too heavy-weight. We ended up having prlimit64 
syscall. I.e. most of the pull request was merged. But not the 2 patches 
for writable /proc/.../limits.

With that syscall we might augment coreutils (or better kernel/tools to 
be updated properly) by a tool such as `prlimit', I think. Actually 
something I had when I was testing the syscall:
https://github.com/jirislaby/collected_sources/blob/master/lim/lim.c#L1

regards,
-- 
js
suse labs
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/

Powered by blists - more mailing lists