Home > How To > Top Cannot Open /dev/kmem

Top Cannot Open /dev/kmem

Contents

using ipfwadm with a Pipeline 75 5. The one who crashes the computer has to make a beer run, brew coffee or whatever you like. ummmwhat: you can still use /dev/mem, or you can play a bit longer but more fun with /dev/sdaX :) I know... I am trying to open /dev/mem and i am getting permission denied int32_t open_memdev() { int32_t fd; fd = open("/dev/mem", O_RDONLY); if (fd < 0) { printf("Failed to open /dev/mem : http://bovbjerg.net/how-to/usb-drive-cannot-open.php

Posted Aug 19, 2005 0:21 UTC (Fri) by giraffedata (subscriber, #1954) [Link] It's not just for debug hacking; other kinds of quick hacks are also made possible. How to reply? No i am not root. Who needs /dev/kmem? view publisher site

/dev/kmem Linux

However, when trying to execute the script I still get the same rror message. Nat Top /dev/kmem: Permission denied by Volker Borche » Sat, 08 Mar 1997 04:00:00 |> > Does anyone know why I get the following message when I try Vic Abell Top /dev/kmem permissions by Chris Costell » Mon, 03 Jul 2000 04:00:00 Quote:>> This is pretty much what FreeBSD does, too: >>crw-r----- 1 root kmem Show: 10 25 50 100 items per page Previous Next Feed for this topic

Find all posts by zazzybob « Previous Thread | Next Thread » Thread Tools Show Printable Version Email this Page Subscribe to this Thread Display Modes Linear Mode Switch to Why is the 'You talking to me' speech from the movie 'Taxi Driver' so famous? In brief: I've never used /dev/kmem to r/w main memory on any OS. /dev/mem Example life is dangerous, even more atoms are dangerous...

This method changes the >group ownership of /dev/mem and /dev/kmem. Modify the ZONE config to share the "/devices" path from the root zone: [i][email protected]:/ # zonecfg -z tmrfish info zonepath: /opt/app/tmrfish autoboot: false pool: inherit-pkg-dir: dir: /platform inherit-pkg-dir: dir: /sbin inherit-pkg-dir: Bug? page At least on any system I've ever looked at, which I mercifully has not included Solaris yet.

This method changes the group ownership of /dev/mem and /dev/kmem. Config_strict_devmem And you have to see their names every day... And, one of the most idiotic arguments you hear... All rights reserved.

  • There is no reason for an ordinary application to access /dev/mem, i.e.
  • Check the permissions on (say) top; if it's setgid kmem, then kmem/mem will have to be group kmem, or else world read, for it to work.
  • Look into sudo.
  • Posted Aug 19, 2005 16:15 UTC (Fri) by giraffedata (subscriber, #1954) [Link] If no one is using something, there's no point in it being maintained I agree with that, but don't
  • drwxr-xr-x 12 root root 1024 Apr 23 19:03 dev drwxr-xr-x 21 root root 1024 Apr 23 19:04 root [email protected]:/opt/app/tmrfish # cd dev [email protected]:/opt/app/tmrfish/dev # [b]ln -s /devices/pseudo/[email protected]:kmem kmem[/b] [email protected]:/opt/app/tmrfish/dev # [b]ln
  • Showing results for  Search instead for  Do you mean  Menu Categories Solutions IT Transformation Internet of Things Topics Big Data Cloud Security Infrastructure Strategy and Technology Products Cloud Integrated Systems Networking

How To Use /dev/mem

The Agent log file says;- uxdc * * * report completed * * * top: cannot stat /dev/kmem init_sock: kvm_open failure, errno = 2: uxdc **** kuxagent terminated **** The memory https://lwn.net/Articles/147901/ if someone does know some bibliography or link about this i will apreciate that. /dev/kmem Linux I apologize for waking up this article that's been slept for a long time. Dev Mem Bad Address But, unless some sort of important user shows up, chances are that /dev/kmem will not survive into 2.6.14.

Top /dev/kmem: Permission denied by Vic Abe » Sat, 08 Mar 1997 04:00:00 >I prefer having them sgid sys (or kmem, on SunOS 4). >I don't like any third party programs http://bovbjerg.net/how-to/vauxhall-corsa-cannot-open-bonnet.php I have no problems when I |> > execute them as root. |> > cannot open /dev/kmem: Permission denied |> |> Because only root and group sys can read /dev/kmem! :) See also this Debian bug report to check if I gave proper credit. An ACL for a separate group -- e.g., kmem -- on /dev/kmem would reduce the risk. /dev/mem Mmap

I have logged a PMR; but they have not answered whether the UNIX OS Agent will work in a zone or just on the global Any ideas ??? It should be removed from mainline too. This special file can also be used to map parts of the physical address space directly into a process's virtual space, though this only works for addresses which do not correspond http://bovbjerg.net/how-to/usb-cannot-open-format.php MathSciNet review alert?

Series p server Integrated Virtual Ethernet and HA Etherchannel for network redundancy White Papers & Webcasts The ROI of Pluralsight: A Small Investment that Pays Big Blog Articles Development knowledge handy How To Read /dev/mem Posted Aug 18, 2005 5:28 UTC (Thu) by iabervon (subscriber, #722) [Link] Most practical applications for /dev/kmem are better served by /proc/kcore, which has the same information, but structured as a A stupid one, to be sure, because it alerted you to the problem, but I'm sure Sturgeon's Law is true of crackers too.

Don't go changing the permissions on the device files!

Start a new thread here 3806289 Related Discussions LPARs: troubleshooting network connectivity problems Virtual I/O questions with p520 VIO - SEA - Virtual Ethernet Adapter - HSCL151A Missing dual path on Claudio Gonzalez Matus replied Oct 14, 2010 Patzebike, Thanks for your help on this issues but the problem was the /dev/kmen didn?t have the correct owner and for that reason wasn?t Problem with function inside brackets. Dev Mem Physical Address cannot open /dev/kmem: Permission denied 2.

Juniper Networks View All Topics View All Members View All Companies Toolbox for IT Topics UNIX Groups Ask a New Question IBM AIX The IBM AIX group is your premier resource That is life, some people are struggling to invent and to build and others are coming to destroy with possible most idiotic arguments... This is a nice quote, I think it should go into a fortune cookie database (if the author doesn't mind, of course). Check This Out Should permissions on /dev/kmem be changed to >u+r or the user should be placed in system group >This is on AIX and perms are cr--r----- , owner is root and group

Only trusted root processes should access /dev/mem. Why does Cutie act like this and lesser robots listen to it? Hot Network Questions Is there a way to block a President Elect from entering office? My first idea was to explain the background of these devices, the reasons why they were created at first time in AT&T Unix VI.

Nmap Security Scanner Intro Ref Guide Install Guide Download Changelog Book Docs Security Lists Nmap Announce Nmap Dev Bugtraq Full Disclosure Pen Test Basics More Security Tools Password audit Sniffers Vuln I did this little explanation because of all you can see two different Ethernet but the same issues, this issues appear when I can tried to see the "etXX" or the der Mouse mouse () collatz mcrcim mcgill edu By Date By Thread Current thread: /dev/kmem: Permission denied der Mouse (Jan 31) /dev/kmem: Permission denied Chris Bulle (Jan 31) Re: /dev/kmem: I prefer having them sgid sys (or kmem, on SunOS 4).

Then set an ACL on the memory devices, /dev/kmem and /dev/mem, that allows the kmem group to read them. Related 15Access permissions of /dev/mem1243What does the C ??!??! I don't know whether this is causing the agent to terminate or because it can't open the socket. Linus has merged a simple fix for 2.6.13.

Unix-like systems have, since nearly the beginning, offered a couple of character device files called /dev/mem and /dev/kmem. /dev/mem is a straightforward window into main memory; a suitably privileged application can Log in to reply. The agent does not appear on the TEPS. Browse other questions tagged c linux memory-management or ask your own question.

Posted Jun 23, 2010 5:03 UTC (Wed) by azhrei_fje (guest, #26148) [Link] I have a use for it. I was planning to make an investigation about mem devices. Wrong permissions for /dev/pts/0 and /dev/pts/1 13. /dev/ttyp# & /dev/pts permissions 8 post • Page:1 of 1 All times are UTC Board index Spam Report Very Computer Board index Solaris /dev/kmem: I added the sys group to oracle ( I know that is bad), but after I did that I was able to startup the oracle instance.

the physical RAM, since applications are running in virtual memory ! Should permissions on /dev/kmem be changed to > u+r or the user should be placed in system group > This is on AIX and perms are cr--r----- , owner is root Join this group Popular White Paper On This Topic Software Defined Networking for Dummies 2Replies Best Answer 0 Mark this reply as the best answer?(Choose carefully, this can't be changed) Yes