I've installed LINUX for the very first time and when i rebooted it, i found this message on my screen "Memory for crashkernel notwithin permissible range" I tried all my attempt like given memory to kernel with this command "crashkernel=64M@16M" but no luck... Finally i tried to boot into single user mode might be it helped me..but same results
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How do I get rid of this message during boot. I have tried the system-config-kdump command but it gives me a "no command found" reply. I am using CentOS 5.4
View 1 Replies View RelatedI'm using centos 5.4 on an Hp Compaq 500B, 4GB ram,I have just installed centos when i try to boot the pc it says "memory for crash kernel not in permissible range, pci not using mmconfig" then it shuts down after a while.
View 1 Replies View RelatedI installed CentOS 5.4.. I saw this message: Memory for crash kernel (0x0 to 0x0) notwithin permissible range Is it ok? I google around it said that it is a known issue and harmless. I installed CentOS 5.2 before. It was ok. Kernel is 2.6.18 too. Just wonder why Kernel version: Linux phot1-nec4 2.6.18-164.el5 #1 SMP Thu Sep 3 03:28:30 EDT 2009 x86_64 x86_64 x86_64 GNU/Linux
View 2 Replies View RelatedI just install CentOS 5.4.
The first message it gives after grub is Quote:Memory for Crash Kernel (0X0 to 0X0) notwithin permissible range
it says this at start of boot:memory for crash kernell (00x00 'or something like that') not within permisiable rangeotherwise no problems for now, ewerything runs fine.
View 4 Replies View RelatedAfter CentOS5.3 install to /sdb7 partition (on 2nd HD) and using Ubuntu Grub(on 1st HD mbr) to boot CentOS, I get "memory for crash kernel 0x0 to 0x0 not within permissible range" as soon as CentOS starts. I have 2G of ram. The message is on every boot. I've had several other linuxes on that partition without such an error message. Otherwise the OS starts fine. Is the message of concern/import?
View 3 Replies View RelatedAfter installation of Red Hat Linux Enterprise Server 5 on to my desktop computer
i got d below error and it can not booting to next screen, on da sreen displaying dat, code...
memory for crash kernel (0x0 to 0x0) not within permissible range
I'm running Scientific Linux 5.5 (equivalent to CentOS 5.5), and over the past two weeks, I have had a problem with my root partition filling up, preventing anyone from logging into the server.After searching for large files, and finding none, I was mystified when du told me that the root partition had only 660 MB of disk space used, whilst df showed it full. The problem was this: the /var/crash directory had been filled up by an 8GB crash file. Now, I'm a 'proper' sysadmin and make sure that /var has its own mount point, so the crash should not have touched the root partition at all. Except it did - instead of writing to /var/crash on /dev/mapper/VolGroup00-LogVol04 which is mounted as /var, it wrote the file to /dev/md0 directly, so when all the file systems were mounted, those files were hidden under the mounted /var.
View 4 Replies View RelatedMy system is running with powerpc and linux, i am facing some kernel crash problem.
I have pasted the trace and log
(1) Display the backtrace for the thread that crashed.
(2) Display argument parameters and local variables for the thread.
Is that possible that SHM shared memory is counted as cache memory on Linux with kernel 2.6.18?If find it really odd since this memory is not file backed, but I have a piece of code that loads data using shm_open+mmap, and it generates an amount of cache memory in /proc/meminfo that corresponds exactly to the amount of shared memory (I load that data from a file but I am using posix_fadvise(fd,0,0,POSIX_FADV_DONTNEED) to ensure this file is not cached and I made sure that it is working as expected). As far as I know SHM memory was not tagged as cache memory with kernel 2.6.9.If it is the case it is really unfortunate since normally cache memory can be considered to be part of the "available" memory since it can be flushed promptly but this is clearly not the case with SHM memory... Is there an easy way to get the total amount of used SHM memory on a system?
View 4 Replies View RelatedI want to enable kernel crash dumps for my Debian 5.0.7 machine. The kernel version is 2.2.26 amd64.How can I configure this?
View 1 Replies View RelatedI write the network driver. Transmission of packets in user space I do through netlink socket`s. In user space there is a handling of packets and their transmission on other device (however, it isn't important).
Problem in that any time, packets through the driver in system, and is reverse, are transferred normally. But then there comes the moment when the kernel crash. If to look in syslog it seems to me that comes deadlock. Also I think that it is related with netlink socket`s.
I can't find the information on that anywhere how correctly to use netlink socket`s in kernel space. Can at you will any a reason into the account of synchronization of sockets and the driver in kernel space?
I can give the driver code if it is necessary.
My server crashed last week and I'm trying to diagnose why. /var/log/messages contains the following error messages, which indicate that the server's memory peaked. I would like to discover what process caused the memory peak. Being that "httpd invoked oom-killer", can I conclude that httpd was the cause of the memory peak?
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Something is running my memory up and causing my load to crash my forum. I keep noticing this error and have no clue really how to go about fixing it.
Quote:
%CPU PID USER COMMAND
1.2 2978 mysql /usr/sbin/mysqld --basedir=/ --datadir=/var/lib/mysql --user=mysql --log-error=/var/lib/mysql/server.forumnameremoved.com.err --pid-file=/var/lib/mysql/server.forumnameremoved.com.pid
Could this be causing my CPU to run high? How would I go about fixing an error like this or is it even doable?
I'm fairly new to linux Red Hat. We are running Rhel 3 on our VM's. We ran into a issue, (Bug 121801 - athlon-smp kernel does not support >4GB of RAM. what the stepos are to upgrade the existing kernel to the new i686? .
View 3 Replies View RelatedAs i undertsand - out of 1GB of the virtual Address space for Kernel from 3GB to 4GB of the process address space, Kernel image (code, data, bss, stack, heap) resides staring @0x0 address. Vmalloc area starts either at the end of Physical ram size or at 896M. This 896M cap is mandated to ensure that minimum of 128MB is reserved as vmalloc_reserve for vmalloc,kmap etc.
Is the understanding correct? Now trying to map Physical Zones into this 1GB address space
Initial 16MB is mapped to ZONE_DMA
16MB - 896MB is mapped to ZONE_NORMAL
896MB - 1024MB is mapped to ZONE_HIGHMEM
Does this mean that Kernel image is residing in ZONE_DMA area? Any call to vmalloc() in kernel code will return address beyond 896M? insmod of any LKM will internally invoke vmalloc() to obtain contiguous area - where will this code physically located along with rest of kernel code in ZONE_DMA or in ZONE_HIGHMEM?
Basically I have a machine with 16GB of RAM and have just discovered that using all of it can crash the whole system over one process. How could I run a process on the system in such a way that if more than 90% of system memory is used, the process immediately crashes?
View 3 Replies View Relatedget me understand the short range and the long range links from routing (and routing protocols') point of view.
View 6 Replies View RelatedI want to plot a set of data in only one plot.The problem is that some points of the data should be better plotted in a linear scale (lets say 0 to 100,000) but there are other data points that, exceding the value 100,000, would be better plotted in a logarithmic scale, as they goes in the range 100,000 to 500,000,000. Let's say the data is:
Code:
X Y
0 100
10000 80
20000 75
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Is there a way to plot all these points in the same plot in only one X-axis showing two different ranges in that axis: linear: 0-100,000 logarithmic: 100,000 - 1,000,000,000?The axis would be read, for example, as:
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|-----|-----|-----|-----|-----|-----|-----|-----|-----|
0 20k 40k 60k 80k 100k 1M 10M 100M 1G
(The abbreviations k-M-G are not the important point. Just shown for clarity)
I want to build a bash script, which can ping a range IP adresses which will be filled in by the admin. If there is no IP-adress filled in, then the script must ping the subnet where the system is logged on. So if my ip is 192.168.1.6, then the script must ping from 192.168.1.1 till 192.168.1.255 Or else, if there is given a beginning and ending ip it must ping that!
The first part of the bash script is to ping a given range (see below). But there is one problem, how can I tell the script to ping from $begin till $end, [..] is of course wrong! But what must be filled in there???
echo "Enter beginning IP-adres:"
read begin
echo "Enter ending IP-adres:"
read end
ping -c 1 $begin [..] $end
The second part is to find my own ip and ping the whole range.. How to do that? I only can find my own IP, but I cant ping the whole range,, how to do that?
#!/bin/bash
ifconfig | grep 'inet addr:' | grep -v '127.0.0.1' |
cut -d: -f2 | awk '{ print $1 }'
Last week my server crashed. I'm trying to diagnose the cause.
This is the relevant error message in /var/log/messages:
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I'm assuming that I can conclude, then, that apache/httpd was the cause of the memory leak?
Next, I've been tracking my memory usage. Using top, this is an average memory load level for my server:
Code:
I'd like to confirm if my understanding of this data is correct, because Plesk indicates that my memory usage is only 50% or less. (Though I have read a number of reports indicating that Plesk's measurements are frequently wrong.)
Top says: Of the 2,073,156K total memory, 1,982,572K (95.63%) is being used, 90,584K (4.37%) is free. Of that sum, 421,948K (20.35%) are being used as buffers. Additionally, of the 2,096,472K of Swap, 60K is used, and 887,700K (42.34%) is cached.
My questions: Is my memory actually being 95% used? Or is the buffered quantity (20.35%) not a use of physical/virtual memory? (i.e. is it disk usage?) Does the amount of cached Swap influence the percentage of physical/virtual memory being used?
In other words, who is correct? Plesk says I'm using 40-50% of my memory, whereas top says 85-95%.
The best word that suits me to introduce is I am a novice! :-) but it is the difficult part get over with the new things and learnings!
Well once such situation made me introduce me to you is "Kernel Crash". I've recently installed Fedora 14 64 bit version on my HP HDX premium series, since then this Kernel crash is chasing me down! code...
Since I updated the Kernel I have the problem that the NIC crashes, with following failure:
May 9 08:53:26 server kernel: [ 292.704044] ------------[ cut here ]------------
May 9 08:53:26 server kernel: [ 292.704054] WARNING: at /usr/src/packages/BUILD/kernel-desktop-2.6.37.6/linux-2.6.37/net/sched/sch_generic.c:258 dev_watchdog+0x233/0x240()
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I wasn't using my laptop for at least a few hours, but when I looked at it, it had seemed to crash. I am hoping to figure out what caused this, and to prevent it from happening again. I believe it has something to do with drm or b43 as that is what I could decipher from the screen. I have checked some logs and found nothing irregular. I do not want this to happen again. I am running kernel 2.6.33.1 with no patches and a custom config tailored to my processor. The reason I am running 2.6.33.1 is because of support for my Wifi.
View 5 Replies View RelatedI using only Livecd CentOS 5.4 and my system crash in day about ~3-5 times , so I tired and want to know why this happen. (before I used live-cd 5.3 about 3 weeks and this problem still was. info : Linux livecd. localdomain 2.6.18-164.el5 #1 SMP Thu Sep 3 03:33:56 EDT 2009 i686 athlon i386 GNU/Linux.I load system perfect and If I just browsing then I will have crash after 5 hours latter , but if I install wine , xmms,lame,xmms-mp3,k3b-mp3,flash-plugin and after installing software I will look movies from internet , or lisining music on xmms mp3 format - my system UPTIME max will be ~30 minutes or less..And I want to ask, or in Live-cd I can start Firewall ? Becouse I think it's not started and then I try to ENABLE its looks like not responding.
View 1 Replies View RelatedI am using malloc and frees a lot in my program. It shows its allocated but when i remove it doesnt show as the memory is removed(I am using the top command to view VIRT memory usage). If this continously grows what would happen to my program (Will it go out of memory?)
View 4 Replies View RelatedI have a computer with 16GB of ram. At the moment, top shows all the RAM is taken, (NOT by cache), but the RAM used by the various processes is very far from 16GB.I have seen this problem several times, but I don't understand what is happening.My only remedy so far has been to reboot the machine.
View 1 Replies View RelatedI just installed it on my ancient IBM T-42 thinkpad, and am completely satisfied.
However, I want to help fedora get better.
I keep getting notices that there is some sort of kernel crash.
See cut and paste below.
When I try to use the automatic bug reporting, it fails to do it.
I have attached a screenshot of what happens when it doesn't report it.
Sound disappears as soon as I try to use an application e.g. News Video Fox, CNN, BBC or playing a video disk or cd disk, and a kernel module crash is reported (listed below from logs) After this happens no sound, and the desktop freezes (X11 only Linux is fine). Restarting X obviously do not solve the problem.
It seems that Fedora 12 has sever problems with Intel Sound cards.
I guess it is not really a Kernel developers problem but more the authors for the sound module causing the crash. I already reported it through the popup to "kernel-oops" by clicking on the "black screen" popup reporting the crash on FC12.
Here follows the logs containing the crash info.
WARNING: at sound/pci/hda/hda_intel.c:565 azx_send_cmd+0x36/0x1df [snd_hda_intel]() (Tainted: G W )
Hardware name: Macmini2,1
BUG?
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