General :: PCI Cache Line Size Set Incorrectly (64 Bytes) By BIOS/FW
Nov 24, 2010
I have AMD Phenom 8550 triple code processor, with 2.20ghz speed and 4gb ram. I am trying to install Redhat linux 9 first time. I am new to linux. While install system hangs with message
ehci-hcd 00:13.2: PCI device 1002:4396
echi-hcd 00:13.2: irq 10, pci mem f880f800
usb.c: new usb bus registered, assigned bus number 2
PCI:00:13.2 PCI cache line size set incorrectly (64 bytes) by BIOS/FW" expecting 16
how to get rid of this message
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Jan 9, 2011
I recently had to move to a new machine, everything went well except for one thing. I did fresh installation of LAMP server all with default configs. Every time I'm using PHP script to that invokes include, require or require_once I get the following error:
Code: Fatal error: Allowed memory size of 20971520 bytes exhausted (tried to allocate 7680 bytes) in /var/www/index.php on line 2 index.php file: PHP Code:
<?php include "index.php";?>
icukapi.php file:
PHP Code:
<?php echo "test";?>
My memory_limit in php.ini is set to 20M. I tried to increase that however it didn't quite work. PHP seems to allocate all possible space and return that message every time i try. If somebody has an idea of how to fix it I would be more than grateful. I spend quite a long time searching for an answer however the all things i found suggested increating memory_limit which in this case doesn't work.
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Jan 14, 2011
i would like to add 8 bytes of data to the begigning of a binary file.is there a command for this?
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Jan 5, 2011
I was laughing about klackenfus's post with the ancient RH install, and then work has me dig up an old server that has been out of use for some time. It has some proprietary binaries installed that intentionally tries to hide files to prevent copying (and we are no longer paying for support or have install binaries), so a clean install is not preferable.
Basically it has been out of commission for so long, that the apt-get upgrade DL is larger than the /var partition (apt caches to /var/cache/apt/archives).
I can upgrade the bigger packages manually until I get under the threshold, but then I learn nothing new. So I'm curious if I can redirect the cache of apt to a specified folder either on the command line or via a config setting?
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Nov 16, 2010
230Gb HD, I recently partitioned a 90Gb slice, and ran 10.10 on it for a while, but due to not using it, I fired up gparted off a live disc last night and got rid of the partition. I got Gparted to make a 5gb swap, and the rest for 10.04, all is fine, rebooted to 10.04, updated grub, it removed the entry for 10.10, but reports that my hd is only 140gb, and sda2 is a 5gb swap. What gives? Where's my disc space?
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Sep 4, 2010
How do I get the L2 and L3 cache size?
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Jan 8, 2010
I want to sort a number of lines based on their size:
data:
-------
12345678
87654321
1234
[code]....
Should output as:
-----------------
1
2
12
21
[code]....
But i'm gettings this with sort
----------------
1
12
123
1234
[code]....
Can we sort the above "data" text, based on "number of characters" instead of "character order"?
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Apr 30, 2010
I'm going to replace damaged HDDs in my server with new drives, which have sector size of 4096 bytes instead of 512. Does CentOS natively support such drives? If yes, since which version? If no, what actions should I take to correctly prepare such a drive to work. How to check that such a drive is correctly recognized by OS?
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Oct 1, 2010
Need reasons why the unit of cache swapping is called a line rather than a page ?
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Jan 11, 2010
I have recently decided to venture into online blogging and other things, and my friend told me wordpress is a great tool for this. I have set up my mysql database, and apache and php are all working fine, and when i copy my wordpress folder into my /var/www/, and edit the config file for my database, i point my browser to[URL] to get it up and running. But i only get the error: "Fatal error: Allowed memory size of 16777216 bytes exhausted (tried to allocate 7680 bytes) in /var/www/wordpress/wp-admin/includes/plugin.php on line 302". Some googleing seems to suggest that this may be a problem with a php.ini file, but im assuming this is a windows based solution, and im not sure where/what a linux alternative is.
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Apr 5, 2011
Is there anyway to show package size that comes up in the search so you don't have to apt-get install package individually and wait for the installation initiation and then reject to install after it gives u the [y/N] confirmation thing?
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Sep 25, 2010
Is there a way to clean (reduce size of) the abrt cache (/var/cache/abrt)? Perhaps something similar to "yum clean all"?
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May 22, 2010
I just bought a laptop with a T4400. Looking through lshw output turned up the following for the L2 cache:
Code:
*-cache:1
description: L2 cache
physical id: 6
slot: L2 Cache
size: 1MiB
capacity: 4MiB
capabilities: burst internal write-back unified
I'm curious as to why the size (1Mib) and capacity (4MiB) are different. Surely it can't be possible to stick something on the CPU to increase the L2 cache size, right?? So what does this mean?
I'm running 64-bit Linux Mint (derivative of Ubuntu). The kernel config says CONFIG_X86_L1_CACHE_BYTES=64 but I found nothing about the L2 cache.
Can I somehow unlock more cache to get a 4MiB L2 cache for free?
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Apr 24, 2011
Does anybody have some thoughts about a local dns server cache size? What is the optimal one? In terms of memory consumption and number of re-enters into the cache. Lets say that default size is 150, so I've change this to 500 and after some time I see 379 re-enters into the cache. Simply put I need to increase the cache size 2 times. But due to the fact that browser preloads dns names it is not possible to interpret the number of overwrites in terms that it is not possible to say if useful cache entries were overwritten or those that the browser precached ( in other words not needed ). In this case it is ok to overwrite unwanted entries because it is not likely that I'll need these entries anyway
I'm running the dnsmasq on an embedded system with limited ram and with an umts dongle attached. It is important to keep the cache size as small as possible to reduce memory usage and at the same time to reduce number of external lookups because dns latency of the umts connection is high (1-2sec for the dns query)
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Jun 28, 2010
On a full update centos 5.5 64 bit every day increases slab cache , specialy size-2048 eat a lot of memory ..
how can change this ? maybe a kernel bug ?
cat /proc/slabinfo
slabinfo - version: 2.1
# name <active_objs> <num_objs> <objsize> <objperslab> <pagesperslab> : tunables <limit> <batchcount> <sharedfactor> : slabdata <active_slabs> <num_slabs> <sharedavail>
[Code]....
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Jan 6, 2011
How would I list every mp3 over a certain size on an entire hard drive?
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Jan 22, 2010
I recently bought an Asus M4N78-AM mobo, AMD processor and memory as an upgrade for a computer. I am using a SATA hdd (no problem with it) and wanted to attach also a Maxtor IDE && DVD IDE wich was the system disk in the old computer. From the very first time, I had problems reading the IDE when copying the old data to the new SATA disk - Slackware 13 only detected the partitions on second reboot (??), the first time complaining about partitions out of limits.
Once transferred all data, I compiled a new 2.6.32.4 kernel and discovered I couldn't access with it the IDE disk. Rebooting, BIOS reports IDE disk as 0Mb in setup, but 1,5 Gb in post summary (just before lilo). cfdisk, parted and sfdisk reports 1.5 Gb and that
should have c/h/s 24792/255/63 --> 204Gb
but has c/h/s */127/3 --> 1.5 Gb
Windows (dual boot) says also 1.5 Gb. BUT 2.6.29.6-huge-smp kernel (slackware 13's) says 204 Gb (reports correct c/h/s) and works fine.
Things I've tried:
partition/repartition with sfdisk, cfdisk, parted
dd first 1Mb with /dev/zero
format ext2/ext3/ext4/vfat
changed IDE cable (no HW damage visible anywhere)
set as slave, master, CS, with/without DVD
A strange thing is the mobo returns a "SATA 3 error" if the disk is alone in the IDE bus (with or without the SATA disk, wich is using the SATA port #1, by the way). If the DVD is connected as a slave, no errors at post. Well, the quick solution is obvious: USE THE DAMN 2.6.29.6 kernel! But the thing is I cant't figure out why BIOS says 0Mb first, then 1.5Gb and if this means the mobo is damaged; never had any problem with the disk before and SMART says OK... Also, I could use the IDE with Linux, but Windows will always report 1.5Gb (as I suppose it takes the geometry the same way BIOS does)/.
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Jan 14, 2011
I've spent hours trying to scan + shrink a multipage PDF documentlosing readability. This is the first time I've ever needed to do this! (I had to scan each page as ".jpg" in order to email and open on another computer, so I could not scan to PDF directly, which I think is why each page was so large; lower DPIs made the text too blurry.)I found this great tip on UbuntuGeek...but anyone can do this if GhostScript is installed:
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Nov 22, 2010
I am reading slab allocator, it defines slab cache, i am quite confuse is it same as hardware cache?
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Jun 24, 2010
Squid servers cache size ondisk automatically increasing and decreasing,how I would resolve this issue
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Jul 15, 2009
I'm trying to automate OS installation. I've setup PXE and able to do network installation. For installation, I'm changing the BIOS boot order to boot from network.Once the OS installation is over, I need to manually change the BIOS boot order to boot from hard-disk. Can BIOS boot order be changed using programs/command-line so that i can eliminate human intervention in the installation process by changing back to the original boot order by program/commands?
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Nov 27, 2010
Running Slackware 13.1
Whenever I insert a dvd or a cd, it automatically mounts to /media/[name], Like for example, the DVD I have in now mounts to /media/TBC3.2.0 (TBC3.2.0 is the name of the disc itself).
I'm needing this to mount to a regular point like /media/cdrom0 or whatever. How can I fix this?
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Nov 4, 2010
SERVER INFO:[root@bml pts]# uname -aLinux bml.xxx.co.uk 2.4.18-6mdk #1 Fri Mar 15 02:59:08 CET 2002 i686 unknownCan someone explain exactly how 'who' builds its user list?I have a problem where it's listing a user on my server, but I can not kill them.
# [root@bml pts]# who | sort
...
simons pts/52 Nov 2 12:33 (derby1)
[code]....
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Apr 3, 2011
I have just created a usb boot disk so that I can install Fedora 14.I used the following which was successfully. However, I am left wondering what does the bs parameter actually does. I know it mean bytes and copies these at a time. But how do I know what to set it to?dd if=F14-Live-i686.iso of=/dev/sdb bs=8MIn the above example it is set to 8MB. However could I set this to any value that I want?
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Jul 11, 2011
I was playing around with my keyboard shortcuts and accidentally mapped a command to the Ctrl+C shortcut. Now I can't stop programs running in the terminal with Ctrl+C and I have no idea of how to restore this functionality.
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Aug 17, 2010
I lost an important file. I know what bytes the file begins with. How can I search the partition for the sequence of bytes?
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Oct 11, 2010
I have an external hdd which is formatted with fat for use by both on linux and windows. The issue is that I can't delete some of the files I have which show up with size 0. Also, the modification timestamp (as detected by Krusader, the file manager I am using) is 1935. How can I delete these kind of files without affecting the running fs?
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Aug 23, 2011
I'm currently using mogrify -strip image.jpg to remove unwanted bytes from images, it was suggested I could remove further data by using jpegran from libjpeg, something like:
jpegtran -copy none -optimize -outfile image.jpg image.jpg
The problem I'm having - if it even is a problem - is that jpegtran doesn't seem to actually do anything that mogrify isn't already doing. In all my testing the filesize just stays the same. If I remove the mogrify part of my code and replace with jpegtran then it seems to perform the same function.
For example:
image without compression: 300k
image with mogrify -strip + jpegtran: 272k
image with mogrify -strip only: 272k
image with jpegtran only: 272k
I was under the impression though that mogrify just removed image profiles/comments and that jpegtran did this as well as losslessly compressing the image to make it smaller. Am I missing something?
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Jun 10, 2011
For backup purposes, I have been trying to find out a solution for Rsync -avr sourcefolder targetfolder with Skipping 0 bytes files option.
However it seems that they are no solutions. Would someone have an idea, to skip to source files into the sourcefolder that have no content, ie. 0 bytes?
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Mar 10, 2010
How do you calculate the number of usable bytes on a disk partition? When I do an fdisk -l I get this:
Disk /dev/md0: 192.0 GB, 192069500928 bytes
2 heads, 4 sectors/track, 46891968 cylinders
Units = cylinders of 8 * 512 = 4096 bytes
[code]...
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