Re: Accessing Invalid Physical Address
Hi, Let me guess - kernel is running a privileged code therefore you don't get it trapped by General Protection #GP exception as you would be when running in user ring. Anyway have you tried to experiment with other addresses ? I think you're referring to a logical address here since paging is involved. Cheers On Thu, Dec 16, 2010 at 2:38 AM, Luis Useche use...@gmail.com wrote: Hi Guys, This is not very related to OpenBSD but perhaps somebody can help me from this list. I need to find what happen when an invalid physical address is accessed from the kernel for a small project I am doing. My guess is that it will trigger some kind of exception trapped by the kernel. I tried this with amd64 OpenBSD to check what was the behavior. The result is that the invalid physical memory is accessed with no trap. This does not make much sense. Here is the code in the kernel: u = malloc(PAGE_SIZE,0,M_WAITOK); *u = 27; printf(U 0: %llx %llx %d\n,(vaddr_t)u,vtophys((vaddr_t)u),*u); pte = vtopte((vaddr_t)u); printf(PTE: %llx\n,*pte); *pte = ~PG_FRAME; *pte |= 0x00023000UL; pmap_update_pg((vaddr_t)u); printf(U 1: %llx %llx %d\n,(vaddr_t)u,vtophys((vaddr_t)u),*u); The result in the dmesg is: USECHE 0: 801f7000 bf33f000 27 PTE: bf33f163 USECHE 1: 801f7000 00023000 -1 Somebody has a clue on why this does not crash or what happen when the invalid physical memory is accessed? Thanks in advance, Luis.
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Re: Azalia No Problem but no Audio
How did you get it working? From: Shazaum shaz...@gmail.com Subject: Re: Azalia No Problem but no Audio To: misc@openbsd.org Date: Wednesday, December 15, 2010, 6:17 PM Now is Work :-) -- Renato dos Santos shazaum.wordpress.com On 11 November 2010 22:37, Shazaum shaz...@gmail.com wrote: I say, I'll re-read the datasheet. (sorry) -- Renato dos Santos shazaum.wordpress.com On 11 November 2010 22:35, Shazaum shaz...@gmail.com wrote: ok, I admire your interest in wanting to add value to your code (to increase the hardware support) back to read the datasheet, and try to do something to help those who use the same hardware that I use. thank a lot of your attention -- Renato dos Santos shazaum.wordpress.com On 11 November 2010 21:18, Jacob Meuser jake...@sdf.lonestar.org wrote: On Thu, Nov 11, 2010 at 05:16:39PM -0200, Shazaum wrote: no work. unless you're willing to send me your machine or one like it for keeps, I've done all I am willing to do. sorry. it's just not worth my time to try to fix vendor fuckups on machines I can't personally test. -- Renato dos Santos shazaum.wordpress.com On 6 November 2010 20:59, Jacob Meuser jake...@sdf.lonestar.org wrote: On Sat, Nov 06, 2010 at 03:39:00PM -0700, James Hozier wrote: I am not sure what all this code means, but would you like me to test stuff out? If I'm supposed to do something with this piece of code, you'll have to let me know what to do with it no, that's specific code for that specific machine he has. yours needs special help too, that'll come later ... -- jake...@sdf.lonestar.org SDF Public Access UNIX System - http://sdf.lonestar.org -- jake...@sdf.lonestar.org SDF Public Access UNIX System - http://sdf.lonestar.org
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Re: FBI And OpenBSD...
On 2010-12-16, Michael Dexter dex...@ambidexter.com wrote: On 12/15/10 2:17 PM, Randy Wrench wrote: The above url carried an article which is disturbing to say the least... Wait a minute... I thought US citizens stayed away from the crypto code to keep it untainted of US export controls. I smell a prank. (And prey that's the case.) See: http://permalink.gmane.org/gmane.comp.security.bugtraq/45620 -- Worse is better Richard P. Gabriel
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Re: IBM TrackPoint scrolling
Thanks, worked together with EmulateWheelButton 2. Regards, Patrick On Wed, Dec 15, 2010 at 6:00 PM, LEVAI Daniel l...@ecentrum.hu wrote: On sze, dec 15, 2010 at 17:49:18 +0200, Patrikas Kugrinas wrote: Hello, Anybody has lucky experiences with IBM TrackPoint ? I have IBM ThinkPad G40, trying to run X server on -current. TrackPoint and it's buttons work as expected except scrolling. Do I need additional X configuration ? Scrolling with USB plugged mouse works fine out of the box. And it seems it doesn't have to do anything with my BIOS settings (some search results on Google suggested so). Do you need: Option EmulateWheel yes in xorg.conf? Daniel -- LIVAI Daniel PGP key ID = 0x83B63A8F Key fingerprint = DBEC C66B A47A DFA2 792D 650C C69B BE4C 83B6 3A8F
Re: Azalia No Problem but no Audio
re-wrote part of a codec, now I can listen to music. -- Renato dos Santos shazaum.wordpress.com On 16 December 2010 11:28, James Hozier guitars...@yahoo.com wrote: How did you get it working? From: Shazaum shaz...@gmail.com Subject: Re: Azalia No Problem but no Audio To: misc@openbsd.org Date: Wednesday, December 15, 2010, 6:17 PM Now is Work :-) -- Renato dos Santos shazaum.wordpress.com On 11 November 2010 22:37, Shazaum shaz...@gmail.com wrote: I say, I'll re-read the datasheet. (sorry) -- Renato dos Santos shazaum.wordpress.com On 11 November 2010 22:35, Shazaum shaz...@gmail.com wrote: ok, I admire your interest in wanting to add value to your code (to increase the hardware support) back to read the datasheet, and try to do something to help those who use the same hardware that I use. thank a lot of your attention -- Renato dos Santos shazaum.wordpress.com On 11 November 2010 21:18, Jacob Meuser jake...@sdf.lonestar.org wrote: On Thu, Nov 11, 2010 at 05:16:39PM -0200, Shazaum wrote: no work. unless you're willing to send me your machine or one like it for keeps, I've done all I am willing to do. sorry. it's just not worth my time to try to fix vendor fuckups on machines I can't personally test. -- Renato dos Santos shazaum.wordpress.com On 6 November 2010 20:59, Jacob Meuser jake...@sdf.lonestar.org wrote: On Sat, Nov 06, 2010 at 03:39:00PM -0700, James Hozier wrote: I am not sure what all this code means, but would you like me to test stuff out? If I'm supposed to do something with this piece of code, you'll have to let me know what to do with it no, that's specific code for that specific machine he has. yours needs special help too, that'll come later ... -- jake...@sdf.lonestar.org SDF Public Access UNIX System - http://sdf.lonestar.org -- jake...@sdf.lonestar.org SDF Public Access UNIX System - http://sdf.lonestar.org
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Re: Azalia No Problem but no Audio
On Thu, Dec 16, 2010 at 01:27:28PM -0200, Shazaum wrote: re-wrote part of a codec, now I can listen to music. huh? -- Renato dos Santos shazaum.wordpress.com On 16 December 2010 11:28, James Hozier guitars...@yahoo.com wrote: How did you get it working? From: Shazaum shaz...@gmail.com Subject: Re: Azalia No Problem but no Audio To: misc@openbsd.org Date: Wednesday, December 15, 2010, 6:17 PM Now is Work :-) -- Renato dos Santos shazaum.wordpress.com On 11 November 2010 22:37, Shazaum shaz...@gmail.com wrote: I say, I'll re-read the datasheet. (sorry) -- Renato dos Santos shazaum.wordpress.com On 11 November 2010 22:35, Shazaum shaz...@gmail.com wrote: ok, I admire your interest in wanting to add value to your code (to increase the hardware support) back to read the datasheet, and try to do something to help those who use the same hardware that I use. thank a lot of your attention -- Renato dos Santos shazaum.wordpress.com On 11 November 2010 21:18, Jacob Meuser jake...@sdf.lonestar.org wrote: On Thu, Nov 11, 2010 at 05:16:39PM -0200, Shazaum wrote: no work. unless you're willing to send me your machine or one like it for keeps, I've done all I am willing to do. sorry. it's just not worth my time to try to fix vendor fuckups on machines I can't personally test. -- Renato dos Santos shazaum.wordpress.com On 6 November 2010 20:59, Jacob Meuser jake...@sdf.lonestar.org wrote: On Sat, Nov 06, 2010 at 03:39:00PM -0700, James Hozier wrote: I am not sure what all this code means, but would you like me to test stuff out? If I'm supposed to do something with this piece of code, you'll have to let me know what to do with it no, that's specific code for that specific machine he has. yours needs special help too, that'll come later ... -- jake...@sdf.lonestar.org SDF Public Access UNIX System - http://sdf.lonestar.org -- jake...@sdf.lonestar.org SDF Public Access UNIX System - http://sdf.lonestar.org -- jake...@sdf.lonestar.org SDF Public Access UNIX System - http://sdf.lonestar.org
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Clarification smtpd.conf(5)
I am new to OpenBSD and smtpd, please ignore if this is too trivial to inform. Smtpd checks for two files instead of one when no certificate name is specified for listen on. Though one of the examples shows exactly what has to be done, I thought it helps mentioning explicitly. Index: smtpd.conf.5 === RCS file: /cvs/src/usr.sbin/smtpd/smtpd.conf.5,v retrieving revision 1.36 diff -u -r1.36 smtpd.conf.5 --- smtpd.conf.529 Oct 2010 09:16:08 - 1.36 +++ smtpd.conf.516 Dec 2010 22:53:51 - @@ -116,9 +116,9 @@ .Ar name is specified, the .Pa /etc/mail/certs -directory is searched for a file named by joining -the interface name with a .crt extension, e.g.\ -.Pa /etc/mail/certs/fxp0.crt . +directory is searched for files named by joining +the interface name with .crt, .key extensions, e.g.\ +.Pa /etc/mail/certs/fxp0.crt /etc/mail/certs/fxp0.key . .Pp If the .Ic enable auth
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Re: Azalia No Problem but no Audio
Can you please elaborate From: Shazaum shaz...@gmail.com Subject: Re: Azalia No Problem but no Audio To: James Hozier guitars...@yahoo.com Cc: misc@openbsd.org Date: Thursday, December 16, 2010, 3:27 PM re-wrote part of a codec, now I can listen to music. -- Renato dos Santos shazaum.wordpress.com On 16 December 2010 11:28, James Hozier guitars...@yahoo.com wrote: How did you get it working?
Re: openssl chat
i can use natively openssl for anonymous chat: 1) but how can i set it to require username/password? it would be a great chat tool 2) how can i transfer files with openssl? [again: with username/password?] Not sure what you are wanting... Anonymous and requiring a username / password are mutually exclusive. If you want chat, just use IRC, there should be a Server in Packages. If you are concerned about security, just grab one with ssl support.
Re: thinkpad sl500: iwn0: radio is disabled by hardware switch
On Sat, May 22, 2010 at 12:29:28PM +0200, Peter N. M. Hansteen wrote: Gregory Edigarov g...@bestnet.kharkov.ua writes: Where is that 'hardware switch'? on my SL500 it's a little slider switch on the front, to the left and down from where you fumble your trackpad On my X31, radio is permanently disabled due to lack of driver.
Re: insecure scheduler in OpenBSD 4.7
On Tue, Oct 12, 2010 at 01:57:20PM +0200, Alexandre Ratchov wrote: On Tue, Oct 12, 2010 at 12:41:04AM +0400, Dmitry-T wrote: Try to recover ballance: renice 20 -p 30996 renice -20 -p 21919 25914 754 ^ If you run any cpu bound process with priority -20, you will give all the cpu to that process, without giving any chance to other processes to run, so your box will hang until it terminates. This requires root privileges. It is not secure. One user script or program may load CPU and database or another servers lost speed in disk operations. This is hole for DOS attacks in OpenBSD design. Yeah, this is an attack root can do by renicing a cpu bound process, but ``rm -rf /'' is much easier, isn't it? I was curious why no one brought this up earlier. A normal user _can't_ nice processes to anything below 0. Therefore this point is moot.
PF subdomain filtering
Hi. How can I pass with PF traffic from all subdomains, for example *.microsoft.com ? Thanks. -- Rafal Brodewicz
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Re: PF subdomain filtering
On Thu, Dec 16, 2010 at 5:21 PM, Rafal Brodewicz b...@brodewicz.pl wrote: Hi. How can I pass with PF traffic from all subdomains, for example *.microsoft.com ? You're thinking at the wrong layer. PF doesn't care about *.microsoft.com. Thanks. -- Rafal Brodewicz
Re: PF subdomain filtering
Hi. I think squid is better solution in this case. you can taste it ! On Fri, Dec 17, 2010 at 2:51 AM, Rafal Brodewicz b...@brodewicz.pl wrote: Hi. How can I pass with PF traffic from all subdomains, for example *.microsoft.com ? Thanks. -- Rafal Brodewicz -- Gula_Gula =;=; BNF
Re: PF subdomain filtering
Yes, I also agree with it. squid can handle that type of things easily. On Fri, Dec 17, 2010 at 9:37 AM, Bahador NazariFard bahador.nazarif...@gmail.com wrote: Hi. I think squid is better solution in this case. you can taste it ! On Fri, Dec 17, 2010 at 2:51 AM, Rafal Brodewicz b...@brodewicz.pl wrote: Hi. How can I pass with PF traffic from all subdomains, for example *.microsoft.com ? Thanks. -- Rafal Brodewicz -- Gula_Gula =;=; BNF -- Thank you Indunil Jayasooriya
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