Make sure it's owned by root and group root and permissions set to read-execute for owner, group and everyone (r-xr-xr-x) or 555. As the buffer (in read or write function) is in kernel space, for write function you need to import data because it comes from user space, but not for the read share|improve this answer edited Jan 31 '11 at 23:38 answered Jan 24 '11 at 17:02 bahamat 19.1k3681 You end up trying to read the memory of whatever $pid is. share|improve this answer edited Jan 24 '11 at 19:38 answered Jan 22 '11 at 23:21 Gilles 385k747061156 Or you can just use dd to read from /proc/pid/mem –abc Mar http://gsbook.org/error-could/error-could-not-read-unmount-information.php
Could not invoke JNI method - readProcFile"); } catch (IllegalAccessException e) { Log.e(TAG, "Error! asked 3 years ago viewed 10280 times active 6 months ago Linked 0 Just installed ubuntu 13.04 and cannot login 1 sudo su fails with 'Unable to change to sudoers gid RTF-FreeBSD-M | Powered by Mantra & WordPress. more stack exchange communities company blog Stack Exchange Inbox Reputation and Badges sign up log in tour help Tour Start here for a quick overview of the site Help Center Detailed More Bonuses
Read my answer. –Gilles Mar 4 '12 at 17:55 You are right. A process running as root can read any process's memory, without needing to call ptrace, but the observed process must be stopped, or the read will still return ESRCH. That's not what we are talking about.
I removed some part of the code regarding parsing exceptions etc. You end up with cat trying to read the memory of bash, its parent process. Shell chown root:root /proc chmod 555 /proc 12 chown root:root /procchmod 555 /proc Be Sociable, Share! share|improve this answer edited May 13 '13 at 16:39 answered Apr 23 '13 at 16:46 bcbc 5,53642563 add a comment| up vote 0 down vote Go to Wubi installation folder C:\ubuntu\install
Not the answer you're looking for? Are zipped EXE files harmless for Linux servers? "Shields at 10% one more hit and..." What? Shell [[email protected] ~]$ top top: /proc is not mounted, required for output data [[email protected] ~]$ htop Error: could not read procfs (compiled to look in /proc). 12345 [[email protected] ~]$ toptop: /proc https://forums.freebsd.org/threads/7401/ Please check this article.
Skip to content HomeAbout Tools Contact Linux : Error running command require /proc could not read procfs By Kaven G. | January 1, 2012 0 Comment Having this issue on Linux Here's an example: $ echo $$ 17823 Note that $$ evaluates to 17823. Four Birds + One I want to become a living god! more stack exchange communities company blog Stack Exchange Inbox Reputation and Badges sign up log in tour help Tour Start here for a quick overview of the site Help Center Detailed
Does having a finite number of generators with finite order imply that the group is finite? FreeBSD Manual Skip to content READ THEN « Configuring unbound How to make pflog interface permanent » htop - could not read procfs By kornel | 30 November 2014 - I transposed it in my head without realizing it. Whichever is more efficent Hot Network Questions How can I turn rolled oats into flour without a food processor?
Why does this work with FileInputStream, but not with FileUtils.copyFile()? his comment is here The next column contain the permissions, then there's some information about the file (offset, device, inode and name) if this is a file mapping. What is the day to day life like as a father? share|improve this answer edited Jun 16 at 22:30 Videonauth 9,58792551 answered Jun 16 at 21:37 Abhradip Mukherjee 1 add a comment| Your Answer draft saved draft discarded Sign up or
Not the answer you're looking for? Code (tested on Android, requires superuser permissions): #include
Shortest auto-destructive loop How to send the ESC signal to vim when my esc key doesn't work? Install linux_base-f10 [[email protected] ~]# pkg install linux_base-f10 Updating FreeBSD repository catalogue… FreeBSD repository is up-to-date. The difference between 'ping' and 'wget' in relation to hostname resolution Shortest auto-destructive loop more hot questions question feed about us tour help blog chat data legal privacy policy work here
I know it's quick and dirty, sorry. –Tobu Mar 19 '13 at 11:30 | show 11 more comments up vote 22 down vote This command (from gdb) dumps memory reliably: gcore If an address is unmapped in the process, reading from the corresponding offset in the file returns EIO (Input/output error). I was just answering in more layman's terms "why doesn't this work". –bahamat Jan 24 '11 at 21:07 @bahamat: Are you thinking of $$ when you write (and read) On my machine, man 2 stat says this: "For most files under the /proc directory, stat() does not return the file size in the st_size field; instead the field is returned
What is the difference between l() and url()? The process to make htop works is bellow. # pkg install linux_base-f10 enable linux # echo ‘linux_enable="YES"‘ >> /etc/rc.conf Add linproc to fstab # echo ‘linproc /compat/linux/proc linprocfs rw Recent Posts How to make pflog interface permanent htop - could not read procfs Configuring unbound FreeBSD + full keboard support for bash Bash as default shell 4 your user. http://gsbook.org/error-could/error-could-not-read-object-configuration-data.php asked 5 years ago viewed 73820 times active 12 months ago Linked 7 How to find Heap memory of a running process? 1 Replacement for TCT's pcat utility 17 How to
For example, since the first page in a process is never mapped (so that dereferencing a NULL pointer fails cleanly rather than unintendedly accessing actual memory), reading the first byte of Once the reader has finished reading from /proc/$pid/mem, it should detach by calling ptrace with the PTRACE_DETACH flag. Are zipped EXE files harmless for Linux servers? But there is a little difference with read, data comes from user, so you have to import data from user space to kernel space (with copy_from_user or get_user)
Would presence of MANPADS ground the entire airline industry? Since non-privileged processes can only read their own memory space this gets denied by the kernel. Is it possible to see animals from space? No info in /var/log/'messages, no other clues ....
Join them; it only takes a minute: Sign up Here's how it works: Anybody can ask a question Anybody can answer The best answers are voted up and rise to the Theorems demoted back to conjectures What to do when using your private key from another computer? share|improve this answer answered Mar 19 '13 at 11:17 Tobu 3,07311317 add a comment| up vote 8 down vote When you execute cat /proc/$$/mem the variable $$ is evaluated by by Categories Centos (31) Fedora (7) FreeBSD (6) Linux (25) Ubuntu (17) Uncategorized (1) Unix (4) Virtulization (3) VMware (3) Tagsbasics centos migration dhcp fedora repo yum htop error in freebsd htop
System Engineer / Network Administrator View all posts by Kaven G. → Post navigation ← Bind : Unexpected RCODE (REFUSED) resolving ‘xx.xx.xx.xx.in-addr.arpa/PTR/IN' Qmail : HowTo generate a certificate for POP3-SSL and Can もとい be used as a noun describing the correction or the fact of correction? Add linproc to fstab [[email protected] ~]# echo ‘linproc /compat/linux/proc linprocfs rw 0 0' >>/etc/fstab 4. The way to find out what parts of the process memory are mapped is to read /proc/$pid/maps.
more hot questions question feed lang-java about us tour help blog chat data legal privacy policy work here advertising info mobile contact us feedback Technology Life / Arts Culture / Recreation Is the form "double Dutch" still used? It works the same way as read, a function is called when the /proc file is written.