Is there a good reason why physical memory pages released by
madvise(...,MADV_FREE) get handled by vm_page_dontneed()?
vm_page_dontneed() leaves page that are already in the inactive queue
where they are, and otherwise distributes pages between the active
queue, and the inactive queue's tail and h
On Wed, 15 Dec 2010 06:56:58 -0800 (PST)
Jakub Lach wrote:
>
> Hello.
>
> http://marc.info/?l=openbsd-tech&m=129236621626462&w=2
>
> What's your insight?
There's already a thread on this on the security list.
___
freebsd-hackers@freebsd.org mailing
On Thu, 24 Feb 2011 12:49:06 +0530
chandra reddy wrote:
> Hi All,
>
> I am working on a project where i need to download a file via a proxy
> server using HTTPS protocol. I found that fetch does not work/support
> HTTPS requests over a proxy.
I just checked and neither do wget nor curl.
> I c
On Mon, 1 Aug 2011 19:21:38 -0300
Mario Lobo wrote:
> On Monday 01 August 2011 15:52:30 Matthew D. Fuller wrote:
> > On Sun, Jul 31, 2011 at 09:28:29PM -0300 I heard the voice of
> >
> > Mario Lobo, and lo! it spake thus:
> > > Unfortunately this Mobo died and only found AM3 boards for which
> >
On Mon, 5 Sep 2011 14:48:57 -0500
Dan Nelson wrote:
> In the last episode (Sep 05), Sean Hamilton said:
> > What is the state of the art for the recommended amount of swap in
> > FreeBSD? Both "normal" systems with 512 MB - 8 GB of RAM, and large
> > database systems with around 128 - 256 GB.
>
>
On Wed, 30 Nov 2011 12:39:10 -
Steven Hartland wrote:
> We're seeing some impossible memory usage stats reported on machines
> here from vmstat and sysctl vm.vmtotal.
>
> We have machines reporting to be using 31GB total when they only have
> 8GB physical and are not using any swap.
>
> Here
On Tue, 6 Mar 2012 10:31:49 +0100
Björn Oelke wrote:
> Am 06.03.2012 um 06:48 schrieb Brandon Falk:
> > I havent tried tmux yet, but on my system im only able to get 80x40
> > with vidcontrol on one monitor. But with xterm in xorg i can get
> > 319x89 per monitor. Until i get about half of that, i
On Sun, 18 Mar 2012 14:01:39 +0100
rank1see...@gmail.com wrote:
> man mdconfig
>
> -S sectorsize to use for malloc backed device
>
>
> I want to create MD device, with sector size of 4 Kb.
>
> It is CRITICAL to NOT append ANY suffixes, when specifing size, via
> '-s' flag in order to u
On Tue, 19 Jun 2012 01:04:47 -0400
Richard Yao wrote:
> On 06/19/2012 12:39 AM, Wojciech Puchar wrote:
> > - delay at rc.d scripts - there are some delays inserted.
> >
> >> The latter item is the only place where making changes to rc.d is
> >> going to help, and only then by parellelizing, and e
On Tue, 19 Jun 2012 11:03:31 -0700
Garrett Cooper wrote:
> On Tue, Jun 19, 2012 at 10:51 AM, Wojciech Puchar
> wrote:
> >>> grep sleep /etc/rc.d/* usr/local/etc/rc.d/*
> >>
> >> Sleeps in /etc tend to be there for good reasons, and new ones are
> >> vigorously scrutinized. If you see any that you
On Thu, 27 Dec 2012 02:33:00 -0800
Garrett Cooper wrote:
> On Thu, Dec 27, 2012 at 2:30 AM, Chris Rees wrote:
> >
> > I recall a cluster administrator advising use of svn protocol
> > rather than http. Something to do with overheads.
>
> Yes, you're right. http opens a connection per-file,
On Sun, 30 Dec 2012 13:18:37 +
Chris Rees wrote:
> On 30 Dec 2012 12:58, "Wojciech Puchar"
> wrote:
> >
> > do ports have to be updated this way or i can use portsnap as
> > today? will
> portsnap be continued or is too deprecated?
>
> Portsnap is staying.
And I understand that freebsd-upda
On Tue, 16 Apr 2013 14:12:54 -0700
Carl Shapiro wrote:
> I am seeing wait4 system calls failing with an EFAULT and I am trying
> to understand what might be going wrong.
>
> An inspection of the wait4 implementation suggests the opportunity
> for EFAULT is within its invocations of copyout. In
On Fri, 31 May 2013 12:01:02 +0200
Dirk-Willem van Gulik wrote:
> Now we happen to have very easy access to blocks of 1024bits of
> randomness from a remote server in already nicely PKI signed packages
> (as it is needed later for something else).
>
> Is it safe to simply *add* those with:
>
>
On Fri, 31 May 2013 14:26:39 +0200
Dirk-Willem van Gulik wrote:
>
> Op 31 mei 2013, om 14:02 heeft RW het
> >># Activate software random generator as an additional
> >> source sysctl kern.random.sys.harvest.swi=1
> >
> > IIRC this doesn't do an
On Tue, 26 Feb 2008 22:49:37 +0300
Eygene Ryabinkin <[EMAIL PROTECTED]> wrote:
> Yes, Geoff just responded to my private question: it was Peter
> Gutmann, who pointed him to the thing you're talking about. There
> is a paper by Peter,
>
> http://www.usenix.org/publications/library/proceedings
The random number generator in FreeBSD's Yarrow implementation uses
AES256 in counter mode. When a reseed occurs the generator is
reinitialised like this:
- generate a new cypher-key from the pool[s] and the old key
- zero the counter
- encrypt the (zeroed) counter with the new key
My questio
On Sat, 19 Apr 2008 23:30:23 +0400
Eygene Ryabinkin <[EMAIL PROTECTED]> wrote:
> I would not do it without consultations with Yarrow's creators:
OK, I didn't realise it was actually specified, I thought it an
implementation detail.
> this modification seems not to help anything,
It possibly d
On Mon, 21 Apr 2008 14:48:30 +0400
Eygene Ryabinkin <[EMAIL PROTECTED]> wrote:
> Good day.
>
> Sun, Apr 20, 2008 at 06:31:35PM +0100, RW wrote:
> > > this modification seems not to help anything,
> >
> > It possibly doesn't help with an attack against
On Mon, 12 May 2008 17:34:35 +0300
Andriy Gapon <[EMAIL PROTECTED]> wrote:
>
> This is not a real issue, just a code clarification.
>
> First a snippet from sys/i386/i386/vm_machdep.c, cpu_reset_real()
> /*
> * Attempt to force a reset via the Reset Control register at
> * I/O port 0xcf9. Bit
On Sat, 22 May 2010 05:09:31 -0700
Anjali Kulkarni wrote:
> I am not sure the right forum to ask this question - is there any
> effort done to find portable code between different OSes,
> particularly freebsd and linux?
BSD code has been used in most operating systems due to its open
licence,
On Sat, 05 Jun 2010 20:16:49 -0400
jhell wrote:
>
>
> I'm afraid that you are confused about what the scheduler in the
> FreeBSD kernel does and what the Aurora Scheduler is. They are not
> relational to one another in any such way.
> ...
> There is not a similiar scheduling program in FreeBSD
On Thu, 1 Jul 2010 10:20:25 -0700
Steve Franks wrote:
> Hi y'all,
>
> My high-end point&shoot camera likes to glob all my photos in a single
> folder, and it's glutting up my drive, and makes finding a specific
> trip unpleasant, with no good place for metadata. My SLR sorts them
> into folders
On Thu, 1 Jul 2010 22:08:55 +0100
RW wrote:
> dir="${targetdir}/`stat -f %Sm -t %Y%m%d ${file}`/"
> [ -d "${dir}"] || mkdir "${dir}"
> mv "${file}" "${dir}"]
>
Should be:
dir="${targetdir}/`stat -f %Sm -t %Y%m
On Sat, 24 Jul 2010 23:23:07 +0300
Andriy Gapon wrote:
>
> There is a good deal of comments in the vm_pageout.c code that imply
> that we use a hysteresis approach to deal with low available pages
> condition.
>
>
> In general, the hysteresis, the comments and the code make sense.
> My doubt,
On Sun, 25 Jul 2010 13:07:21 +0300
Andriy Gapon wrote:
> on 25/07/2010 02:31 RW said the following:
> > As I understand it the hysteresis is done inside vm_pageout_scan,
> > and the expectation is that one pass will typically satisfy this
> > because the design aims to ke
On Sun, 25 Jul 2010 17:19:41 +0300
Andriy Gapon wrote:
> on 25/07/2010 16:41 RW said the following:
> > In FreeBSD the inactive queue contains disk cache pages which
> > normally provide most of the clean pages needed. In addition pages
> > are dribbled out to swap, an
On Sun, 25 Jul 2010 23:43:08 +0300
Andriy Gapon wrote:
> on 25/07/2010 23:28 RW said the following:
> > I didn't say it say it was guaranteed. I just think the scenario
> > where a first pass ends up between the watermarks is rare. And when
> > it happens I don'
On Thu, 16 Sep 2010 09:17:52 +0200
Dag-Erling Smørgrav wrote:
> Garrett Cooper writes:
> > Agreed. Spinning down at reboot isn't smart and seems like a good
> > way to kill a disk quicker.
>
> *not* spinning down at halt is far worse. Most modern disks are rated
> for hundreds of thousands of
On Thu, 21 Oct 2010 12:21:10 +
Alexander Best wrote:
> atacontrol(8) says that:
>
> "You should not set a spindown timeout on a disk with / or syslog
> logging on it as the disk will be worn out spinning down and up all
> the time."
>
> this seems to indicate that spinning down a disk
On Thu, 19 Jun 2008 17:36:44 -0400
Chuck Robey <[EMAIL PROTECTED]> wrote:
> Could I ask, does anyone here know the reason (even in general) that
> the Nvidia driver isn't working on the i386?
I presume you mean on amd64, since it does work on i386.
http://lists.freebsd.org/pipermail/freebsd-ha
On Wed, 25 Jun 2008 11:52:30 +0300
Stefan Lambrev <[EMAIL PROTECTED]> wrote:
> I tried this before and have a bad luck of not having working audio
> on flash, but today with new wine and FF3 it works.
>
> Btw there is a small nasty problem copy/paste from wine app to native
> apps does not work.
On Fri, 27 Jun 2008 00:37:40 -0700
Jeremy Chadwick <[EMAIL PROTECTED]> wrote:
> Also, HTML Email is incredibly annoying. And you know what's even
> *more* annoying? HTML Email that is sent with a text/plain MIME type,
> indicating it's not HTML.
There was also a problem with the base64 encodin
On Wed, 2 Jul 2008 23:36:09 -0400
"Sean Cavanaugh" <[EMAIL PROTECTED]> wrote:
> This is the first time I ever actually downloaded all 3 CD's so i
> didn't know what I was getting into. I had always just used the
> first CD for the initial install, then ports for everything else.
> Next time I wi
On Mon, 28 Jul 2008 15:10:11 +0200
Marc L__rner <[EMAIL PROTECTED]> wrote:
> On Monday 28 July 2008 15:00, Jeremy Chadwick wrote:
> > On Mon, Jul 28, 2008 at 04:11:49PM +0400, sam wrote:
> > > Hello,
> > >
> > > How to make 'fsck -f' on booting stage of remote system?
> >
> > I believe by setting
On Sat, 23 Aug 2008 15:33:54 +0200
Gary Jennejohn <[EMAIL PROTECTED]> wrote:
> On Sat, 23 Aug 2008 06:34:23 -0400
> "Aryeh Friedman" <[EMAIL PROTECTED]> wrote:
>
> > What is difference between /etc/rc.d called programs and ones called
> > after login prompt shows up?
> >
> > The reason for askin
On Sat, 23 Aug 2008 16:38:13 -0400
"Aryeh Friedman" <[EMAIL PROTECTED]> wrote:
> c) See a additionally to prove all the above here is my /etc/rc (the
> last 2 lines where added just to prove the point):
>
> #!/bin/sh
>
> PATH=/sbin:/bin:/usr/sbin:/usr/bin:/usr/local/sbin:/usr/local/bin
>
> swa
On Sat, 23 Aug 2008 23:13:49 +0100
RW <[EMAIL PROTECTED]> wrote:
> On Sat, 23 Aug 2008 16:38:13 -0400
> "Aryeh Friedman" <[EMAIL PROTECTED]> wrote:
>
>
> > c) See a additionally to prove all the above here is my /etc/rc (the
> > last 2 lines where a
On Sat, 23 Aug 2008 22:02:14 -0400
"Aryeh Friedman" <[EMAIL PROTECTED]> wrote:
> Thanks that did it... but you're incorrect in saying it is only ntfs
> it is all fuse based fs's I had a the same error when doing a fuse-ssh
> mount to my machine at work
I meant only ntfs out of all the other entr
On Fri, 26 Sep 2008 20:15:43 +0200
"Michael Schuh" <[EMAIL PROTECTED]> wrote:
> Let us say i have a Machine with 8 CPUs and a lot of RAM.
> An i need a very high perfomance Storage for holding data.
>
> My idea was to setup a raid1(0) with virtual disk images.
> Created with mdconfig.
>
> My id
On Mon, 29 Sep 2008 10:36:46 +0200
"Michael Schuh" <[EMAIL PROTECTED]> wrote:
> so we have a webserver (par example) at this mirror it has very good
> speed for the file-access
> (ok i know in allmost cases is not the disk the bottleneck, and if we
> could doing caching...)
> at the above examle it
On Sat, 17 Jan 2009 17:57:10 -0800 (PST)
Kamlesh Patel wrote:
> Hi All,
>
> I am trying remote kernel debugging in FreeBSD using serial
> communication. I got the following link.
>
> http://www.ibm.com/developerworks/aix/library/au-debugfreebsd.html#list1
>
> My problem is my developing and ta
On Sun, 29 Mar 2009 17:40:30 -0400
Chuck Robey wrote:
> I just had to see if I could locate if there was a gnome project page
> by looking at the FreeBSD web pages. Why don't you try that
> yourself? I'll tell you, it's really FAR from being obvious. I'm
> just saying, even if folks don't want
On Sun, 4 Oct 2009 15:11:18 +0100
Alex Trull wrote:
> Hi all,
>
> I realised that because portupgrade/portmaster don't always
> cleanly restart processes that have died due to being
> upgraded (mysqld, often!) that this was something I wanted
> to fix.
You can configure portupgrade (and FWIW
On Thu, 24 Dec 2009 15:45:15 +0300
Paul Graphov wrote:
> Hello guys,
>
> I've looked at FreeBSD 8.0 cryptographically secure pseudorandom
> numbers generator and have a question. It looks like a bug but I'am
> not sure.
>
> In file sys/dev/randomdev.c, function random_read:
>
> if (!ra
On Thu, 24 Dec 2009 19:48:43 + (GMT)
Robert Watson wrote:
> On Thu, 24 Dec 2009, Paul Graphov wrote:
>
> > And also according to Schneier it is a good idea to save state of
> > the PRNG and restore it on boot to make it "more seeded".
>
> In the default configuration, we save some PRNG outp
On Fri, 25 Dec 2009 13:38:10 -0800
Doug Barton wrote:
> Robert Watson wrote:
> > I'll point Mark Murray at this thread and see if we can get him to
> > opine some on the current design choices and any potential changes
> > to address them. I was interested by your observation that the
> > boot-t
On Thu, 22 Apr 2010 20:05:48 +0300
Eitan Adler wrote:
> bak=/var/backups
This should be configurable IMO.
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On Thu, 22 Aug 2013 22:49:58 +0200
Jeremie Le Hen wrote:
> Hi,
>
> I plan to commit the attached patch. This allows the turn the daily
> security checks into weekly checks. You do this by adding the
> following to periodic.conf(5):
>
> daily_status_security_enable=NO
> weekly_status_se
On Sun, 25 Aug 2013 22:03:58 +0200
Jeremie Le Hen wrote:
> I've implemented it here:
> http://people.freebsd.org/~jlh/security_status_period.diff
>
Doesn't this mean that if you want to run "periodic security" from
crontab or manually etc, you have to override every single entry to
"crontab" in
On Tue, 8 Oct 2013 13:32:58 +0200
Davide Italiano wrote:
> On Tue, Oct 8, 2013 at 1:25 PM, Adrian Chadd
> wrote:
> > Hi,
> >
>
> Hi Adrian,
>
> > Please try it out on a -10 VM with something RAM limited - say,
> > 128mb w/ GENERIC. See how it behaves.
Be aware that any test that doesn't cause
On Tue, 8 Oct 2013 16:01:25 -0700
Davide Italiano wrote:
> This could be probably changed -- from what | see even under high
> memory pressure this wasn't a problem but all in all I agree with you
> that we shouldn't loop forever but limit the number of pass on the
> list to a somewhat constant n
On Wed, 9 Oct 2013 15:42:27 +0400
Dmitry Sivachenko wrote:
> Hello!
>
> I have a program which mmap()s a lot of large files (total size more
> that RAM and I have no swap), but it needs only small parts of that
> files at a time.
>
> My understanding is that when using mmap when I access some me
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