Why system gcc that is 4.2.1 produces different code than gcc-4.2.1 compiled from sources?
I ran this simple example:
#include stdlib.h
#include stdio.h
int fib(int AnArg) {
if (AnArg = 2) return (1);
return (fib(AnArg-1)+fib(AnArg-2));
}
int main(int argc, char* argv[]) {
int n = atoi(argv[1]);
printf(fib(%i)=%i\n, n, fib(n));
}
through system gcc and gcc built from sources. Both are 4.2.1. Options: -O3.
Average runtime with the argument 45 is quite different: system gcc is
3.650s and gcc-4.2.1 from sources is 3.740.
CPU: Intel(R) Core(TM) i7 CPU @ 9200 @ 2.67GHz
Yuri
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Wpoison?????
Looking for comments on this small apache web application that fools web harvest programs into harvesting bogus email address from web page. http://www.monkeys.com/wpoison Anybody try this? Is this a self-inflicted Trojan? Since I don't have web server was thinking of creating jail for apache that only runs this wpoision perl script? My firewall been blocking inbound port 80 and gets hit 100's of times a day. Just script kiddies rolling through a block of ip address hunting. Play with them a little bit in return. Comments please? ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to freebsd-questions-unsubscr...@freebsd.org
Re: Advice for finding a leaky Apache (probably PHP) process
Adam Vande More wrote: On Sat, Apr 24, 2010 at 8:02 PM, Joe Auty j...@netmusician.org mailto:j...@netmusician.org wrote: Hello, I'm wondering if you guys have any general tips on how to find the Apache process/app that is gobbling up my RAM randomly until my machine crashes and I'm forced to reboot? I'm tired of staring at top and working with flimsy hacks such as 10 minute Apache restart cronjobs. This seems to start (or worsen) after updating to PHP 5.3, but this is not happening on my test machine where PHP 5.3 is also installed and the same apps are used (although not publicly). General tips and suggestions are welcome here! THanks in advance... Have you tried working with php's mem limit abilities? The base system provides procstat for tracking invidual process info. You could try something like appending ps aux file every minute or so to track growth etc. Can you provide more info about the php app? -- Adam Vande More Well, I'm fishing. It is also possible that I'm seeing a denial of service attack or something, but the result is my Apache processes ballooning and CPU usage for some of my httpd processes going up to around 100%. There are several PHP apps running on the server, so it is very hard to pinpoint things to one app, which is part of the problem. I can actually see the memory growth, I can sit and watch top and see my memory consumption balloon until the machine swaps and then just grinds to a halt. Sometimes it gets so bad that I'm forced to killall -9 httpd just to bring the machine back to life. What are some good techniques for trying to ascertain whether a particular web app is being exploited for some sort of attack? Since I had to recompile PHP and all of my PHP extensions is there a possibility that a particular extension is causing memory consumption to balloon? A long time ago I had an attack on a very old version of WordPress. I found this via my Apache server-status page, but it was sort of a pure fluke that I did find this. Surely there has to be better ways to connect httpd processes to pages that are being served? I wish that the machine was a little more responsive when I get to this point so that I can ktrace the processes... Thanks for your help! -- Joe Auty, NetMusician NetMusician helps musicians, bands and artists create beautiful, professional, custom designed, career-essential websites that are easy to maintain and to integrate with popular social networks. www.netmusician.org http://www.netmusician.org j...@netmusician.org mailto:j...@netmusician.org ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to freebsd-questions-unsubscr...@freebsd.org
Re: Installing from FTP: unable to transfer the GENERIC distribution
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 On 24/04/2010 22:41:13, Антон Клесс wrote: Suspect hardware on the second system? Try escaping to the shell (Alt-F4) after pulling down some of the distribution sets and see if 'netstat -i' shows interface errors. I tried to, but (Alt-F4) does nothing. Should it work in Standard installation method or Custom? This time I lucky: Base distribution set get right, and when Generic started downloading, I reached the console you mean. netstat -i says there are no errors. second console says following: /stand/cpio: invalid header: checksum error /stand/cpio: warning: skipped number bytes of junk /stand/cpio: : No such file or directory While downloading, such messages run out very fast. Then, sysinstall says: User confirmation requested Unable to transfer the GENERIC distribution from ftp://ftp10.freebsd.org. Do you want to try to retrieve it again? Hmmm... well, the best theory I can see that fits the observed symptoms is that you are getting packet loss while trying to download the distribution sets for your second system. Packet loss usually means dodgy hardware. I think you'ld have to be seeing quite substantial packet loss -- more than about 5% -- or the normal TCP retransmission stuff would fix things at the cost of a rather lower than normal download speed. It's pretty hard to diagnose such problems from the installer -- try booting the machine from a livecd and using a more capable environment to work out what's going wrong. Cheers, Matthew - -- Dr Matthew J Seaman MA, D.Phil. 7 Priory Courtyard Flat 3 PGP: http://www.infracaninophile.co.uk/pgpkey Ramsgate Kent, CT11 9PW -BEGIN PGP SIGNATURE- Version: GnuPG/MacGPG2 v2.0.14 (Darwin) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org/ iEYEARECAAYFAkvT7fAACgkQ8Mjk52CukIy9bACePj/qXPxD+FRX7XPc5+KAQxqK FAUAnjNSDDvEFMhudlzmboD0TPfHj5OR =TGTL -END PGP SIGNATURE- ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to freebsd-questions-unsubscr...@freebsd.org
Re: Installing from FTP: unable to transfer the GENERIC distribution
If I just ping FTP server from installer's shell for minutes, it will show me packets loss if some, right? 2010/4/25 Matthew Seaman m.sea...@infracaninophile.co.uk -BEGIN PGP SIGNED MESSAGE- Hash: SHA1 On 24/04/2010 22:41:13, Антон Клесс wrote: Suspect hardware on the second system? Try escaping to the shell (Alt-F4) after pulling down some of the distribution sets and see if 'netstat -i' shows interface errors. I tried to, but (Alt-F4) does nothing. Should it work in Standard installation method or Custom? This time I lucky: Base distribution set get right, and when Generic started downloading, I reached the console you mean. netstat -i says there are no errors. second console says following: /stand/cpio: invalid header: checksum error /stand/cpio: warning: skipped number bytes of junk /stand/cpio: : No such file or directory While downloading, such messages run out very fast. Then, sysinstall says: User confirmation requested Unable to transfer the GENERIC distribution from ftp://ftp10.freebsd.org . Do you want to try to retrieve it again? Hmmm... well, the best theory I can see that fits the observed symptoms is that you are getting packet loss while trying to download the distribution sets for your second system. Packet loss usually means dodgy hardware. I think you'ld have to be seeing quite substantial packet loss -- more than about 5% -- or the normal TCP retransmission stuff would fix things at the cost of a rather lower than normal download speed. It's pretty hard to diagnose such problems from the installer -- try booting the machine from a livecd and using a more capable environment to work out what's going wrong. Cheers, Matthew - -- Dr Matthew J Seaman MA, D.Phil. 7 Priory Courtyard Flat 3 PGP: http://www.infracaninophile.co.uk/pgpkey Ramsgate Kent, CT11 9PW -BEGIN PGP SIGNATURE- Version: GnuPG/MacGPG2 v2.0.14 (Darwin) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org/ iEYEARECAAYFAkvT7fAACgkQ8Mjk52CukIy9bACePj/qXPxD+FRX7XPc5+KAQxqK FAUAnjNSDDvEFMhudlzmboD0TPfHj5OR =TGTL -END PGP SIGNATURE- -- С уважением, Антон Клесс, http://kless.spb.ru/ ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to freebsd-questions-unsubscr...@freebsd.org
Re: Installing from FTP: unable to transfer the GENERIC distribution
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 On 25/04/2010 09:13:07, Антон Клесс wrote: If I just ping FTP server from installer's shell for minutes, it will show me packets loss if some, right? Probably. Packet loss can be a tricky thing, and depend on any one of a number of parameters. You may well need to tell ping to use bigger packets -- your FTP session will be maxing out the MTU, so try 1500 byte packets as well as the default size. In fact (and now I come to mention it), MTU problems are a pretty good fit to what you're seeing. Except in that case, I doubt you'ld have had any success at downloading at all. Cheers, Matthew - -- Dr Matthew J Seaman MA, D.Phil. 7 Priory Courtyard Flat 3 PGP: http://www.infracaninophile.co.uk/pgpkey Ramsgate Kent, CT11 9PW -BEGIN PGP SIGNATURE- Version: GnuPG/MacGPG2 v2.0.14 (Darwin) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org/ iEYEARECAAYFAkvT+4oACgkQ8Mjk52CukIwP9wCfUijlReVsBwM+qHbbyuFfvPgc 2TAAn3mYH9tClr/3YmKVtkiSE4beZjpP =5Hew -END PGP SIGNATURE- ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to freebsd-questions-unsubscr...@freebsd.org
Re: Advice for finding a leaky Apache (probably PHP) process
On Sun, Apr 25, 2010 at 2:10 AM, Joe Auty j...@netmusician.org wrote: Well, I'm fishing. It is also possible that I'm seeing a denial of service attack or something, but the result is my Apache processes ballooning and CPU usage for some of my httpd processes going up to around 100%. There are several PHP apps running on the server, so it is very hard to pinpoint things to one app, which is part of the problem. I can actually see the memory growth, I can sit and watch top and see my memory consumption balloon until the machine swaps and then just grinds to a halt. Sometimes it gets so bad that I'm forced to killall -9 httpd just to bring the machine back to life. What are some good techniques for trying to ascertain whether a particular web app is being exploited for some sort of attack? Since I had to recompile PHP and all of my PHP extensions is there a possibility that a particular extension is causing memory consumption to balloon? A long time ago I had an attack on a very old version of WordPress. I found this via my Apache server-status page, but it was sort of a pure fluke that I did find this. Surely there has to be better ways to connect httpd processes to pages that are being served? I wish that the machine was a little more responsive when I get to this point so that I can ktrace the processes... well if you're just looking for some general advice, I'll tell you what I do and you take what you like. - I don't use Apache anymore for several reasons. Speed and configuration are just two of them. A couple of the more popular http server alternative are lighttpd and nginx. I prefer nginx. Both very small and very fast compared to apache. I didn't believe the difference others claimed until I ran the benchmarks myself. Not only where they much faster and lighter than apache, they were also more reliable especially under load. - jails are a lightweight method of isolating insecure apps. Get to know them and use them extensively. PHP apps are well known for this type of thing, and if you're going to run them it's very wise to make sure you're safe while doing so. I like to use sysutils/ezjail to create full jails for each php app each with it's own install of an http server and php. The root host would run a reverse proxy of your choosing and direct http requests to the appropriate jail. jails can be assigned cpu sets as well eg if your cpu has 4 cores, a jail can be bound to 1 or more of them. jails also have their own process list so top is not so difficult to decipher(your unresponsive system could be helped by this and you can also be stricter in your php.ini mem limits per jail). This method will use a little more memory, but easily it's the best time-wise from an administration approach that I've found if you have a lot of different types of clients. - use ports-mgmt/portaudit regularly. - for debugging php, if truss and ktrace aren't helping, use valgrind. -- Adam Vande More ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to freebsd-questions-unsubscr...@freebsd.org
apache Perl CGI programs
I have Perl and apache installed on my system. Do I have to do anything additional to get apache to run Perl CGI programs? Is putting the perl script in the cgi-bin directory at /usr/local/www/data all it takes to make things work? ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to freebsd-questions-unsubscr...@freebsd.org
Re: Advice for finding a leaky Apache (probably PHP) process
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 On 25/04/2010 02:02:52, Joe Auty wrote: I'm wondering if you guys have any general tips on how to find the Apache process/app that is gobbling up my RAM randomly until my machine crashes and I'm forced to reboot? I'm tired of staring at top and working with flimsy hacks such as 10 minute Apache restart cronjobs. This seems to start (or worsen) after updating to PHP 5.3, but this is not happening on my test machine where PHP 5.3 is also installed and the same apps are used (although not publicly). General tips and suggestions are welcome here! You need to divide and conquer. Basically, you've got all of your PHP applications running in one PHP interpreter instance per apache child and you won't be able to tell which is the problem app until you can separate them out. One way of doing that is the simple and obvious method of commenting out each application in turn from the apache config, leaving it running for a while and seeing what happens to memory usage. This is OK only if you're happy to turn off chunks of site functionality while testing. Alternatively, you can set up several different instances of apache, each configured to run one of the php applications and each binding to a different port on the loopback interface. Then use another apache with a bit of mod_proxy or mod_rewrite glue to redirect the queries internally. Or you could replace the front facing apache instance with something like varnish. Finally, it has been suggested else-thread that you contemplate switching to an alternative HTTP daemon like nginx -- in that case, you'ld want to be running your PHP apps under fCGI rather than embedded in the HTTP daemon. Running each different PHP app in a separate fCGI process shouldn't be too hard to set up. While this is a valid alternative configuration for your site, the Scientist in me complains that as an attempt to find out why your PHP apps are misbehaving, there are too many uncontrolled changes for it to be a good diagnostic. Cheers, Matthew - -- Dr Matthew J Seaman MA, D.Phil. 7 Priory Courtyard Flat 3 PGP: http://www.infracaninophile.co.uk/pgpkey Ramsgate Kent, CT11 9PW -BEGIN PGP SIGNATURE- Version: GnuPG/MacGPG2 v2.0.14 (Darwin) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org/ iEYEARECAAYFAkvUAgMACgkQ8Mjk52CukIyCJwCfW+UWZkYxNtTCtEg1NhCkRmTR Mg8AoIYO4qRSswo/3gMWhVqrQAkzv7PX =vFG3 -END PGP SIGNATURE- ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to freebsd-questions-unsubscr...@freebsd.org
Re: apache Perl CGI programs
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 On 25/04/2010 09:38:38, Fbsd1 wrote: I have Perl and apache installed on my system. Do I have to do anything additional to get apache to run Perl CGI programs? Is putting the perl script in the cgi-bin directory at /usr/local/www/data all it takes to make things work? Pretty much. Look at the apache documentation for 'ScriptAlias' and 'Options ExecCGI' and 'Add-Handler cgiscript .cgi' for details, but these should be set up already for the cgi-bin directory. Cheers, Matthew - -- Dr Matthew J Seaman MA, D.Phil. 7 Priory Courtyard Flat 3 PGP: http://www.infracaninophile.co.uk/pgpkey Ramsgate Kent, CT11 9PW -BEGIN PGP SIGNATURE- Version: GnuPG/MacGPG2 v2.0.14 (Darwin) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org/ iEYEARECAAYFAkvUAwYACgkQ8Mjk52CukIzvfACfdEYDqJRFtyg+6IoLq1J0YTpK SEcAn0Z4+038CYWpkwz2etoHHWJJNPPL =sM0o -END PGP SIGNATURE- ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to freebsd-questions-unsubscr...@freebsd.org
Gnome 2.30
Hi does anybody know if Gnome 2.30 will be out soon in the FreeBSD ports? Thanks Andrew Hill ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to freebsd-questions-unsubscr...@freebsd.org
Re: Gnome 2.30
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 On 25/04/2010 07:59:44, Andrew Hill wrote: Hi does anybody know if Gnome 2.30 will be out soon in the FreeBSD ports? I suspect the freebsd-gnome project might have an inkling. Try here: http://wiki.freebsd.org/Gnome and the mailing list here: http://lists.freebsd.org/mailman/listinfo/freebsd-gnome Cheers, Matthew - -- Dr Matthew J Seaman MA, D.Phil. 7 Priory Courtyard Flat 3 PGP: http://www.infracaninophile.co.uk/pgpkey Ramsgate Kent, CT11 9PW -BEGIN PGP SIGNATURE- Version: GnuPG/MacGPG2 v2.0.14 (Darwin) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org/ iEYEARECAAYFAkvUK9gACgkQ8Mjk52CukIxPDQCfVc6fOh6BD95VLFH3ygdSlQoo GjYAnRhg3gZ8Zr7osrj20x3PJvRh/6Es =uaug -END PGP SIGNATURE- ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to freebsd-questions-unsubscr...@freebsd.org
ZFS scheduling
Hi, I noticed that my system gets very slow when I'm doing some simple but intense ZFS operations. For example, I move about 20 Gigabytes of data from one data set to another on the same pool, which is a RAIDZ of 3 500 GB SATA disks. The operations itself runs fast, but meanwhile other things get really slow. E.g. opening a application takes 5 times as long as before. Also simple operations like 'ls' stall for some seconds which they did never before. It already changed a lot when I switched from RAIDZ to a mirror with only 2 disks. Memory and CPU don't seem to be the issue, I have a quad-core CPU and 8 GB RAM. I can't get rid of the idea that this has something to do with scheduling. The system is absolutely stable and fast. Somehow small I/O operations on ZFS seem to have it very difficult to make it through when other bigger ones are running. Maybe this has something to do with tuning? I know my system information is very incomplete, and there could be a lot of causes. But anybody knows if this could be an issue with ZFS itself? Thanks, Anselm ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to freebsd-questions-unsubscr...@freebsd.org
Re: Question. Multi Boot
On Sun, 2010-04-18 at 11:10 -0500, Jorge Biquez wrote: Hello all. I hope this question does not sound so stupid. I have read archives and do gogled searches but would like , if possible, to hear comments based on experience. I have a machine, pentium D 2.4mhz 2gb RAM, 160DD HD XP Pro. As I mentuioned in other post I installed FreeBSD 7.3 under a virtual machine using vmware. It works fine but seems it is too much for the machine since when I am running it the machine is very slow. I have that FB installation running without graphical interface since that's why I need then. Now I would like to have a graphical interface running to learn to use eclipse and continue with my PHP/Mysql development learning. I know that if I continue under VMware the windows machine will be even more slow so I decided that I would have this machine running with a multi boot schema and choose when to boot under FreeBSd, Windows and later with Linux (looking for a job and in some companies asked me to have the basics of any distribution). The most important is that I need to be able to continue having that actual windows partition without loosing anything or changing anything. What do you think, based on experince, is the safest way to accomplish this? Not quite the exact answer you may be looking for, but why don't you flip the tables a bit and run Window$ as the virtual machine on the FreeBSD as a host? From my experience it actually works much faster, and Window$ doesn't see any penalties at all. I haven't done it in quite some time, but that did work a treat at the time- no reason it should have changed. ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to freebsd-questions-unsubscr...@freebsd.org
Re: Why system gcc that is 4.2.1 produces different code than gcc-4.2.1 compiled from sources?
Yuri y...@rawbw.com writes:
I ran this simple example:
#include stdlib.h
#include stdio.h
int fib(int AnArg) {
if (AnArg = 2) return (1);
return (fib(AnArg-1)+fib(AnArg-2));
}
int main(int argc, char* argv[]) {
int n = atoi(argv[1]);
printf(fib(%i)=%i\n, n, fib(n));
}
through system gcc and gcc built from sources. Both are 4.2.1. Options: -O3.
Average runtime with the argument 45 is quite different: system gcc is
3.650s and gcc-4.2.1 from sources is 3.740.
CPU: Intel(R) Core(TM) i7 CPU @ 9200 @ 2.67GHz
Hi,
I'm pretty sure that a small difference in execution time does not mean
that the produced code is different. In order to check the code gcc
produced, you need to do something like this:
objdump -d executable
or even use gdb's disassemble command.
Regards,
Leonidas
Yuri
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Re: Wireless networking question
On Apr 24 2010 23:51, S Roberts wrote: I believe its been bundled into the libpciaccess port: http://www.freebsd.org/cgi/cvsweb.cgi/ports/devel/libpciaccess/ Doesn't seem to be there, and google isn't being helpful. A search of freshports.org didn't turn up anything either. Searching freebsd.org only shows our conversation. -- Sterling (Chip) Camden | camdensoftware.com | chipstips.com | chipsquips.com ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to freebsd-questions-unsubscr...@freebsd.org
Re: Why system gcc that is 4.2.1 produces different code than gcc-4.2.1 compiled from sources?
Leonidas Tsampros wrote: I'm pretty sure that a small difference in execution time does not mean that the produced code is different. Actually, execution time of a process is very sensitive to the environment of this process. See for instance: http://www-plan.cs.colorado.edu/diwan/asplos09.pdf We see that something external and orthogonal to the program, i.e., changing the size (in bytes) of an unused environment variable, can dramatically (frequently by about 33% and once by almost 300%) change the performance of our program. (The quotation is taken out of the article.) I learned about this in a message from Xavier Leroy to the OCaml mailing list: http://caml.inria.fr/pub/ml-archives/caml-list/2009/12/e261eeb95bec6c5a2791335c84234a05.en.html Cheers, Michaël ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to freebsd-questions-unsubscr...@freebsd.org
Re: Wireless networking question
Chip Camden wrote: On Apr 24 2010 23:51, S Roberts wrote: I believe its been bundled into the libpciaccess port: http://www.freebsd.org/cgi/cvsweb.cgi/ports/devel/libpciaccess/ Doesn't seem to be there, and google isn't being helpful. A search of freshports.org didn't turn up anything either. Searching freebsd.org only shows our conversation. Likely your ports tree is rather out-of-date? The port directory is at /usr/ports/devel/libpciacess, and the import date on the Makefile is May 2008. Or, perhaps ports aren't installed? Try: $pkg_add -r \ ftp://ftp.freebsd.org/pub/FreeBSD/ports/i386/Packages-8-stable/devel/libpciaccess-0.10.6_1.tbz Kevin Kinsey ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to freebsd-questions-unsubscr...@freebsd.org
Re: Wireless networking question
Hello Chip, On Sun, 25 Apr 2010 12:10:40 -0700 Chip Camden sterl...@camdensoftware.com wrote: On Apr 24 2010 23:51, S Roberts wrote: I believe its been bundled into the libpciaccess port: http://www.freebsd.org/cgi/cvsweb.cgi/ports/devel/libpciaccess/ Doesn't seem to be there, and google isn't being helpful. A search of freshports.org didn't turn up anything either. Searching freebsd.org only shows our conversation. Hmmm.., you sure your ports system is installed / up-to-date there? Do you have any of the docs that would have shipped with the notebook? If not, I searched ASUS, and found a link to the English version manual here: http://support.asus.com/download/download.aspx?SLanguage=en-usproduct=3model=K72Ftype=mapf_type=19 I've not downloaded it, so please see if there's anything that can assist. There **are** other resources at the ASUS site - you just have to use the menu on the right to select your particular model and review the list of resources that gets returned.., Hope this helps.., Regards, S Roberts ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to freebsd-questions-unsubscr...@freebsd.org
Re: Advice for finding a leaky Apache (probably PHP) process
Not to blow off any of the fine suggestions that have been made, but I may have solved my problem, sort of... I need help with one other question though, see below (please and thanks!): I'm not sure what the connection is here between the PHP upgrade, perhaps nothing, but I did notice my individual httpd processes taking up a crapload of RAM - they'd balloon to 600M and beyond, according to top. According to this Apache directive: http://httpd.apache.org/docs/2.0/mod/core.html#rlimitmem RLimitMEM Directive Description:Limits the memory consumption of processes launched by Apache children Syntax:RLimitMEM bytes|max [bytes|max] Default:Unset; uses operating system defaults The OS defaults are applying here. I believe that the kernel option that is tunable in /boot/loader.conf is kern.maxdsiz which is 34359738368 bytes, or 32 gigabytes. This machine is actually a VM guest that has only been assigned 1 gig, so basically it seemed like there was nothing to control how far these processes will balloon. Obviously the better solution is to stop them from ballooning somehow, but when I restart Apache each process takes under 200 MB, so I set the RLimitMEM to 250 MB and made sure that I have enough child processes running. I'll play around with a kern.maxdsiz limit once I can reboot the machine. Here's my question... From the Apache performance tuning guide: http://httpd.apache.org/docs/2.2/misc/perf-tuning.html The single biggest hardware issue affecting webserver performance is RAM. A webserver should never ever have to swap, as swapping increases the latency of each request beyond a point that users consider fast enough. This causes users to hit stop and reload, further increasing the load. You can, and should, control the MaxClients setting so that your server does not spawn so many children it starts swapping. This procedure for doing this is simple: determine the size of your average Apache process, by looking at your process list via a tool such as top, and divide this into your total available memory, leaving some room for other processes. I'm not exactly sure how to best calculate this? Right now top is showing 260M of active RAM. The total of the size or res columns for all of my httpd processes definitely exceeds this. How can I determine how much RAM a httpd process is *actively* using, as opposed to how much size it is claiming so that I can best come up with a maxclients setting? Matthew Seaman wrote: On 25/04/2010 02:02:52, Joe Auty wrote: I'm wondering if you guys have any general tips on how to find the Apache process/app that is gobbling up my RAM randomly until my machine crashes and I'm forced to reboot? I'm tired of staring at top and working with flimsy hacks such as 10 minute Apache restart cronjobs. This seems to start (or worsen) after updating to PHP 5.3, but this is not happening on my test machine where PHP 5.3 is also installed and the same apps are used (although not publicly). General tips and suggestions are welcome here! You need to divide and conquer. Basically, you've got all of your PHP applications running in one PHP interpreter instance per apache child and you won't be able to tell which is the problem app until you can separate them out. One way of doing that is the simple and obvious method of commenting out each application in turn from the apache config, leaving it running for a while and seeing what happens to memory usage. This is OK only if you're happy to turn off chunks of site functionality while testing. Alternatively, you can set up several different instances of apache, each configured to run one of the php applications and each binding to a different port on the loopback interface. Then use another apache with a bit of mod_proxy or mod_rewrite glue to redirect the queries internally. Or you could replace the front facing apache instance with something like varnish. Finally, it has been suggested else-thread that you contemplate switching to an alternative HTTP daemon like nginx -- in that case, you'ld want to be running your PHP apps under fCGI rather than embedded in the HTTP daemon. Running each different PHP app in a separate fCGI process shouldn't be too hard to set up. While this is a valid alternative configuration for your site, the Scientist in me complains that as an attempt to find out why your PHP apps are misbehaving, there are too many uncontrolled changes for it to be a good diagnostic. Cheers, Matthew ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to freebsd-questions-unsubscr...@freebsd.org -- Joe Auty, NetMusician NetMusician helps musicians, bands and artists create beautiful, professional, custom designed, career-essential websites that are easy to maintain and to integrate with popular social networks.
RE: ZFS scheduling
Hi, I noticed that my system gets very slow when I'm doing some simple but intense ZFS operations. For example, I move about 20 Gigabytes of data from one data set to another on the same pool, which is a RAIDZ of 3 500 GB SATA disks. The operations itself runs fast, but meanwhile other things get really slow. E.g. opening a application takes 5 times as long as before. Also simple operations like 'ls' stall for some seconds which they did never before. It already changed a lot when I switched from RAIDZ to a mirror with only 2 disks. Memory and CPU don't seem to be the issue, I have a quad-core CPU and 8 GB RAM. I can't get rid of the idea that this has something to do with scheduling. The system is absolutely stable and fast. Somehow small I/O operations on ZFS seem to have it very difficult to make it through when other bigger ones are running. Maybe this has something to do with tuning? I know my system information is very incomplete, and there could be a lot of causes. But anybody knows if this could be an issue with ZFS itself? Hello As you do mention, your system information is indeed very incomplete, making your problem rather hard to diagnose :) Scheduling, in the traditional sense, is unlikely to be the cause of your problems, but here's a few things you could look into: First one is obviously the pool layout, heavy-duty writing on a pool, consisting of a single raidz vdev is slow (slower than writing to a mirror, as you already discovered), period. such is the nature of raidz. Additionally, your problem is magnified by the fact that your have reads competing with writes since you are reading (I assume) from the same pool. One approach to alleviating the problem would be to utilize a pool consisting of 2 or more raidz vdevs in a stripe, like this: pool raidz disc1 disc2 disc3 raidz disc4 disc5 disc6 The second potential cause of your issues is the system wrongly guesstimating your optimal TXG commit size. ZFS works in such a fashion, that it commits data to disk in chunks. How big chunks it writes at a time it tries to optimize by evaluating your pool IO bandwidth over time and available RAM. The TXG commits happen with an interval of 5-30 seconds. The worst case scenario is such, that if the system misguesses the optimal TXG size, then under heavy write load, it continues to defer the commit for up to the 30 second timeout and when it hits the caps, it frantically commits it ALL at once. This can and most likely will completely starve your read IO on the pool for as long as the drives choke while committing the TXG. If you are on 8.0-RELEASE, you could try playing with the vfs.zfs.txg.timeout= variable in /boot/loader.conf, generally sane values are 5-30, with 30 being the default. You could also try adjusting vfs.zfs.vdev.max_pending= down from the default of 35 to a lower value and see if that helps. AFAIK, 8-STABLE and -HEAD have a systctl variable which directly allow you to manually set the preferred TXG size and I've pretty sure I've seen some patches on the mailing lists to add this functionality to 8.0. Hope this helps. - Sincerely, Dan Naumov ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to freebsd-questions-unsubscr...@freebsd.org
USB keyboard: mode switch / numlock freezes
Hi, I have a Roccat Arvo keyboard that has a number block with integrated positioning keys (arrows, del, end, ...), but no extra keys for them. There is a mode switch button that switches between the two layouts, like the numlock key, but I'm not sure if this really is numlock. For some reason the switch stops to work after exactly 4 presses. This only happens during boot, or when the FreeBSD kernel is loaded. It does not happen when I boot into Windows or Linux. I also tried other computers, getting the same result. Could it be a numlock issue? Any idea how to address this? Thanks, Anselm ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to freebsd-questions-unsubscr...@freebsd.org
Re: Wireless networking question
On Apr 25 2010 21:26, S Roberts wrote: Hmmm.., you sure your ports system is installed / up-to-date there? Do you have any of the docs that would have shipped with the notebook? If not, I searched ASUS, and found a link to the English version manual here: http://support.asus.com/download/download.aspx?SLanguage=en-usproduct=3model=K72Ftype=mapf_type=19 I've not downloaded it, so please see if there's anything that can assist. There **are** other resources at the ASUS site - you just have to use the menu on the right to select your particular model and review the list of resources that gets returned.., Hope this helps.., Regards, S Roberts Thanks for the attempt to help, but ports are up-to-date. I'm on 8.0-RELEASE amd64 -- maybe scanpci isn't available on amd64? The download for the manual is exactly the same as the paper manual that came with the notebook. It gives very little technical information. On the web site, all I could find is that it's 802.11n capable, which I already knew from the sales pamphlet. -- Sterling (Chip) Camden | camdensoftware.com | chipstips.com | chipsquips.com ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to freebsd-questions-unsubscr...@freebsd.org
diablo-jdk not installing correctly
Hi, I want to install java and tomcat. After some time trying I could not install the JDK, I first tried to install diablo jdk 1.6. I go to /usr/ports/java/diablo-jdk1.6, turns out that I have to go through further step due to licensing, I do that step and go to http://www.freebsdfoundation.org/downloads/java.shtml and choose: Diablo Caffe JDK 1.6.0-7 FreeBSD 7.x/i386 End-User 61M diablo-jdk-freebsd7.i386.1.6.0.07.02.tbz I read and accept the licensing terms, then I do pkg_add Diablo Caffe JDK 1.6.0-7 FreeBSD 7.x/i386 End-User 61M diablo-jdk-freebsd7.i386.1.6.0.07.02.tbz and the problem starts, it's requiring me to install javavmwrapper In install the respoective port then try again pkg_add Diablo Caffe JDK 1.6.0-7 FreeBSD 7.x/i386 End-User 61M diablo-jdk-freebsd7.i386.1.6.0.07.02.tbz and it turns out that I also need a different version of x libraries, for example, I'm required to install: xtrans-1.0.4 I go to sysinstall and I realize that because my version of FreeBSD is 7.3, but it already includes the newer versions of xtrans, I am currently downloading a previous version of FreeBSD (7.1) to see if it has the required previous version of xtrans, I am concerned because according to the literature diablo is supposed to be the maintained jdk for FreeBSD. And I realize that I am having to download version 7.1 when we are already on version 8.0 of FreeBSD to make java work My question is: is Java in FreeBSD an experimental/academic package? Should I rather go with the linux compatibility way? Am I doing things incorrectly? thank you herbey ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to freebsd-questions-unsubscr...@freebsd.org
Re: Wireless networking question
On Apr 25 2010 16:18, Chip Camden wrote: On Apr 25 2010 21:26, S Roberts wrote: Hmmm.., you sure your ports system is installed / up-to-date there? Do you have any of the docs that would have shipped with the notebook? If not, I searched ASUS, and found a link to the English version manual here: http://support.asus.com/download/download.aspx?SLanguage=en-usproduct=3model=K72Ftype=mapf_type=19 I've not downloaded it, so please see if there's anything that can assist. There **are** other resources at the ASUS site - you just have to use the menu on the right to select your particular model and review the list of resources that gets returned.., Hope this helps.., Regards, S Roberts Thanks for the attempt to help, but ports are up-to-date. I'm on 8.0-RELEASE amd64 -- maybe scanpci isn't available on amd64? The download for the manual is exactly the same as the paper manual that came with the notebook. It gives very little technical information. On the web site, all I could find is that it's 802.11n capable, which I already knew from the sales pamphlet. OK -- searching the ASUS site for Windows 7 64bit docs (that's what came on it), I find three possibilities for the wireless device: 1. Intel 1000 2. Intel 6200 3. Azurewave Looks like both of the first two are addressed by driver iwn on OpenBSD, but not on FreeBSD. The third one I don't see anywhere. Looking here: http://en.wikipedia.org/wiki/Comparison_of_open_source_wireless_drivers#FreeBSD Looks like that page was last updated for FreeBSD on April 25. In any case, I tried iwn, and that doesn't work. -- Sterling (Chip) Camden | camdensoftware.com | chipstips.com | chipsquips.com ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to freebsd-questions-unsubscr...@freebsd.org
ezjail and dmsg -a command
I have a directory tree type of ezjail up and running. When in jail console I enter dmesg -a and i get the hosts last boot messages not the jails. Why is this dmesg command issued from within the jail have access to the host world? Something wrong here! ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to freebsd-questions-unsubscr...@freebsd.org
Re: diablo-jdk not installing correctly
On Sun, Apr 25, 2010 at 07:34:19PM -0400, herbey zepeda wrote: [...] I am concerned because according to the literature diablo is supposed to be the maintained jdk for FreeBSD. And I realize that I am having to download version 7.1 when we are already on version 8.0 of FreeBSD to make java work My question is: is Java in FreeBSD an experimental/academic package? Should I rather go with the linux compatibility way? There has been no movement with the diablo-jdk for ages; java/openjdk6 is better maintained and would be a better choice. Cheers. -- Jonathan Chen j...@chen.org.nz We laugh in the face of danger, we drop icecubes down the vest of fear - Edmond Blackadder III ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to freebsd-questions-unsubscr...@freebsd.org
installing gnome
I installed FreeBSD 8.0. Then I followed the directions on installing Gnome2. I typed pkg_add -r gnome2. Then I added the line gnome_enable=YES to /etc/rc.conf. But to no avail. Gnome doesn't boot. Only the terminal boots up. I also get this error during boot: gdm-binary[1285]: WARNING: GdmLocalDisplayFactory: maximum number of X display failures reached: check X server log for errors mike ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to freebsd-questions-unsubscr...@freebsd.org
Re: diablo-jdk not installing correctly
On Sun 25 Apr 2010 at 17:57:27 PDT Jonathan Chen wrote: On Sun, Apr 25, 2010 at 07:34:19PM -0400, herbey zepeda wrote: [...] I am concerned because according to the literature diablo is supposed to be the maintained jdk for FreeBSD. And I realize that I am having to download version 7.1 when we are already on version 8.0 of FreeBSD to make java work My question is: is Java in FreeBSD an experimental/academic package? Should I rather go with the linux compatibility way? There has been no movement with the diablo-jdk for ages; java/openjdk6 is better maintained and would be a better choice. Maybe so, but it seems some ports are calling out diablo-jdk as a dependency. I know I didn't explicitly choose to install it. I should probably rtfm, but is there a way to force ports to use openjdk instead? ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to freebsd-questions-unsubscr...@freebsd.org
Re: Wireless networking question
Chip Camden wrote: On Apr 25 2010 16:18, Chip Camden wrote: On Apr 25 2010 21:26, S Roberts wrote: Hmmm.., you sure your ports system is installed / up-to-date there? Do you have any of the docs that would have shipped with the notebook? If not, I searched ASUS, and found a link to the English version manual here: http://support.asus.com/download/download.aspx?SLanguage=en-usproduct=3model=K72Ftype=mapf_type=19 I've not downloaded it, so please see if there's anything that can assist. There **are** other resources at the ASUS site - you just have to use the menu on the right to select your particular model and review the list of resources that gets returned.., Thanks for the attempt to help, but ports are up-to-date. I'm on 8.0-RELEASE amd64 -- maybe scanpci isn't available on amd64? Let me preface my commentary with I'm way out of my league, so #include disclaimer.h and all that ... For starters, in re: above, didn't someone suggest libpciaccess as the source for scanpci? I can't tell if you are misunderstanding what S Roberts suggested, or I am misunderstanding what you are responding. I'm pretty sure there's some misunderstanding here, though. The download for the manual is exactly the same as the paper manual that came with the notebook. It gives very little technical information. On the web site, all I could find is that it's 802.11n capable, which I already knew from the sales pamphlet. OK -- searching the ASUS site for Windows 7 64bit docs (that's what came on it), I find three possibilities for the wireless device: 1. Intel 1000 2. Intel 6200 3. Azurewave Looks like both of the first two are addressed by driver iwn on OpenBSD, but not on FreeBSD. The third one I don't see anywhere. Looking here: http://en.wikipedia.org/wiki/Comparison_of_open_source_wireless_drivers#FreeBSD Looks like that page was last updated for FreeBSD on April 25. In any case, I tried iwn, and that doesn't work. I thought we had pciconf output that stated it was an Atheros chipset? In that case, it would be the Azurewave, right? I'd suspect it might be supported under ath(4), but you'd wanna read the manpage and possibly even the source for any kind of confirmation on that; the manpage does specifically say that adapters based on the AR5005VL aren't supported. However, the manpage might be slightly out-of-date, also. The other thing I recall seeing is that a new variant of a supported chipset comes out, and the driver code doesn't recognize it even though it might work well. Used to be something like a VENDOR_ID string in the source files; I don't know if it's still the case, but if it was, some people have been able to hack their own device support in rare cases simply by adding the new info to the driver file and recompiling it, but you'd want someone with a lot more $OS_foo than I have to help out with that (or tell you if it's even possible). This is open-source stuff; you might even get sam@ 's attention and get help from the writer himself if you're wearing your lucky sneakers. Kevin Kinsey ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to freebsd-questions-unsubscr...@freebsd.org
HP Proliant ML 150 G5
I tried to install FreeBSD 8.0 AMD64 on an HP Proliant ML 150 G5 Intel Xeon quad core but fails. With CentOS 5.4 the installation was Ready. I would like to know is this product ML 150 G5 is incompatibility with FreeBSD 8.0 I tested FreeBSD with an ML 115 G5 and the installation was ready. Thanks William Moreno P.D.: El presente correo no contiene tildes para evitarle al receptor inconvenientes en su lectura. ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to freebsd-questions-unsubscr...@freebsd.org
Re: installing gnome
Am 26.04.2010 03:22, schrieb Michael Glaz: I installed FreeBSD 8.0. Then I followed the directions on installing Gnome2. I typed pkg_add -r gnome2. Then I added the line gnome_enable=YES to /etc/rc.conf. But to no avail. Gnome doesn't boot. Only the terminal boots up. I also get this error during boot: gdm-binary[1285]: WARNING: GdmLocalDisplayFactory: maximum number of X display failures reached: check X server log for errors mike ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to freebsd-questions-unsubscr...@freebsd.org Have you installed xorg server? pkg_add -r xorg should it install. Cheers ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to freebsd-questions-unsubscr...@freebsd.org
Re: diablo-jdk not installing correctly
2010/4/25 herbey zepeda zepedaher...@gmail.com: Hi, I want to install java and tomcat. After some time trying I could not install the JDK, I first tried to install diablo jdk 1.6. I go to /usr/ports/java/diablo-jdk1.6, turns out that I have to go through further step due to licensing, I do that step and go to http://www.freebsdfoundation.org/downloads/java.shtml and choose: Diablo Caffe JDK 1.6.0-7 FreeBSD 7.x/i386 End-User 61M diablo-jdk-freebsd7.i386.1.6.0.07.02.tbz I read and accept the licensing terms, then I do pkg_add Diablo Caffe JDK 1.6.0-7 FreeBSD 7.x/i386 End-User 61M diablo-jdk-freebsd7.i386.1.6.0.07.02.tbz and the problem starts, it's requiring me to install javavmwrapper In install the respoective port then try again pkg_add Diablo Caffe JDK 1.6.0-7 FreeBSD 7.x/i386 End-User 61M diablo-jdk-freebsd7.i386.1.6.0.07.02.tbz and it turns out that I also need a different version of x libraries, for example, I'm required to install: xtrans-1.0.4 I go to sysinstall and I realize that because my version of FreeBSD is 7.3, but it already includes the newer versions of xtrans, I am currently downloading a previous version of FreeBSD (7.1) to see if it has the required previous version of xtrans, I am concerned because according to the literature diablo is supposed to be the maintained jdk for FreeBSD. And I realize that I am having to download version 7.1 when we are already on version 8.0 of FreeBSD to make java work My question is: is Java in FreeBSD an experimental/academic package? Should I rather go with the linux compatibility way? Am I doing things incorrectly? Hi http://www.freebsd.org/cgi/cvsweb.cgi/ports/java/diablo-jdk16/ cd /usr/ports/java/diablo-jdk16 make install 2.Download the package manually from the links provided by Ports. This is due to licensing issues. 3.Copy the downloaded file into /usr/ports/distfiles. 4.Launch the installation again 5.Maybe you need repeat step 2 and download another package. Note: Please note that due to the current Sun licensing policy the resulting binaries can not be distributed and you are only permitted to use/hack it personally. Due to the same reasons you have to manually fetch the source code and patchset for FreeBSD. If you should have trouble, you can see the FreeBSD Handbook section on installing applications for help. http://www.freebsd.org/doc/en_US.ISO8859-1/books/handbook/ports.html this port Requires: inputproto-1.5.0, javavmwrapper-2.3.4, kbproto-1.0.3, libICE-1.0.4_1,1, libSM-1.1.0_1,1, libX11-1.2.1_1,1, libXau-1.0.4, libXdmcp-1.0.2_1, libXext-1.0.5,1, libXi-1.2.1,1, libXp-1.0.0,1, libXt-1.0.5_1, libXtst-1.0.3_1, libpthread-stubs-0.3_3, libxcb-1.5, pkg-config-0.23_1, printproto-1.0.4, recordproto-1.13.2, xextproto-7.0.5, xproto-7.0.15 javavmwrapper-2.3.4 this port does not Requires another http://www.freebsd.org/cgi/cvsweb.cgi/ports/java/javavmwrapper/ Your problem its with xtrans (diablo-jdk16 and javavmwrapper does not Requires xtrans) Maybe you need upgrade your ports http://www.freebsd.org/doc/en_US.ISO8859-1/books/handbook/ports-using.html Regards. ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to freebsd-questions-unsubscr...@freebsd.org
