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Comments:
<0> how can i check the cpu for bugs ? anyone knows ?
<1> cpuinfo
<1> use the cpuinfo operation
<1> it has advanced structure giving you information about cpu capabilities
<1> check the intel manuals
<0> guys .. lspci shows me this "M*** storage controller: <pci_lookup_name: buffer too small> (rev 13)" how can i find out what that is ?
<2> I have CONFIG_SMP enabled and still only one CPU is shown in cpuinfo for my dual-core pentium 4. How can this be?
<3> does 2.4.32 support cd writing without using ide-scsi ?
<3> I just got a very wierd lockup when burning a cd, had to hard reboot the box to stop it... http://rafb.net/paste/results/NvsMtU48.html anyone suggest how to make sure it doesn't happen again?
<4> Hi is ext2 esential ?
<4> when I am booting with initrd
<5> I'm not sure how to go about reporting kernel bugs, but I cannot get kernel 2.6.15.{3,4} to boot on a VIA VT-310DP motherboard (dual Eden-N processor ITX). It stops right after it registers the IO schedulers. Typically after that point, it displays info on the IDE controllers. I can help provide data on this config, but I need to know what to do. :)
<6> Sephen: basically sign up for one of the mailing lists in the topic & go from there
<7> Does anyone have any idea how I can get at least 19 analog inputs and 17 analog outputs, for a robotics experiment?
<7> PCI ADC/DAC boards are both expensive and insufficient... at least those I found.
<6> hmm lpt port gives you 36 from memory but I think some of those are power
<7> Aren't they also digital?
<6> BadBreath: probably, but you can multiplex something over digital with the righ dac
<7> yeah.. maybe.. I will look into that.
<7> btw: I see /dev/dsp is discontinued--what is it replaced with?
<7> Does the DB-25 port on PCs provide analog I/O ?
<8> ok. I want to mmap some ram obtained by dma_alloc_coherent. ldd3 says I can't use remap_pfn_range or io_remap_page_range. Do I really need to implement a nopage method? Is there a better way?
<6> dsmith: depends on your definition for better
<6> better for you or the person who would have too go rtfm/do the legwork on your behalf looking for alternatives
<8> gb: Better for me of course! Didn't you know I'm the center of the known unuverse? ;^)
<8> gb: I don't mind digging in. But before I do, it would be nice to know I'm in the right direction.
<9> hi all
<9> i read on pwc's webpages that pwc support is discontinued but i found it in latest kernel 2.6.15. so does really philips webcam's driver support is not removed from newer kernels?
<10> anybody can tell me if it's really a kernel bug that my laptop almost gets burned because fans doesn't work at all?
<10> i'm currently using an HP Compaq nx6125 laptop that uses an AMD Turion64 processor
<11> i am seeing "2:0:0:0: rejecting I/O to dead device" in my log. how do i find out what 2:0:0:0 is?
<11> aha
<11> Feb 16 10:27:07 lapse kernel: sr 2:0:0:0: Attached scsi CD-ROM sr0
<11> weird. whatever. a reboot will fix that.
<6> madduck: thats a microsoft approach
<11> gb: :)
<11> i have a USB dvd drive
<11> it was connected yesterday
<11> then i acpi suspended
<11> on waking up this morning, i saw this error
<11> i cannot unload sr_mod
<6> ahh then restart usb services :)
<11> and that isn't microsoft? :)
<6> a kill -9 init will fix that too :)
<11> lol
<11> how do i restart usb services?
<6> unload the ehci or whatever hub you're using & hopefully if it doesn't go zombie it will release first then ram & then the hardware thats locked :)
<6> of course if it zombies on you then a -9 of init or similar will have too suffice
<11> done. it released everything it seems (ehci, uhci), but the messages are still there...
<6> ahh ok in that case I dunno :)
<6> but I found same thing happenned with audio on notebook after a suspend
<6> so figured same solution might work
<11> rebooting. :)
<6> did you try unplugging the usb device?
<6> mm
<12> hi, I'm looking at 16-rc3 source conf. and speciffically the "Radeon" glx/drm options, but all refer to Xfree! How does that relate to Xorg. Are those 2, the Xfree/Xorg compatible as far as kernel built modules?
<6> brtjohns: uhuh
<13> :)
<6> install irssi n you'll have less h***les :P
<14> I have a thoretical question regarding disk cache vs swap.
<6> just ask it already, who cares if its theoretical or not
<6> wasting my screen real estate with pointless text
<15> hareldvd: disk cache is in the actual hard disk drive , and if am right, it caches most readable data or something, so the system could access it straight away and the disk still would be in the position where it can read something else
<15> cache is just using the disk space and its contolled by the system, not hdd
<15> hareldvd: wikipedia it:P
<15> swap space is something like ram stuff stored in your hdd..
<6> swap is unlikely too be stored in cache as it's constantly changing
<6> theoretically :)
<6> & yes you can get built in cache on a hard drive which is unrelated too the system as well
<6> some of the more recent disks with higher spin rates employ such a cache
<6> but again I think the cache only stores data for items being read regularly & not changed
<14> Sorry I had to go for some time.
<14> My question is: if there is a memory shortage, what determines if a disk cache space will be released for the new memory request or it will be a process swap/paging operation?
<14> like on my current machine I have only 1G of RAM. most of it is used for disk cache. swap space is not used at all.
<14> Eventually the entire 1G ram is used
<14> now what if there is a memory shortage due to memory allocation operation regardless who asked for the resource?
<14> it seems to me that using the cache for memory request is on highter priority until a given limit or so with the actual cache size.
<14> Drakas: Do you think wikipedia will explain this issue?
<15> hareldvd: disk cache is _only_ for the files form the disk
<15> it stores files that are proably accessed a lot or whatever
<15> disk cache actually is used for faster-requests
<14> Drakas: If you use KDE you can try to monitor with kinfocenter. Will you look close enough you will notice how disk cache takes all free physical memory and when a process uses more memory the size of the cache shrinks (I would ***ume that some dirty buffers will be written) but if you keep demanding more memory, you will start using the swap device while the cache is much smaller but still quite big on the phishcal memory.
<16> hi folx
<15> http://en.wikipedia.org/wiki/Disk_cache
<15> wait
<15> not right.
<14> Drakas: What I am interested is a rough description of the algorithm of how mem shortage is handled.
<15> hareldvd: heard of windows? page file?
<15> page file is like swap space in linux
<15> _except_ you actually mount it
<15> on linux, and its much more efficient in linux
<14> Drakas: Sorry to interrupt. I know all that.
<15> ok..
<14> I am interested in understanding the ALGORITHM about handling memory shortage.
<15> well somebody yesterday on gentoo channel told me that when memory is used up, the over-memory is pt into the swap space
<15> hareldvd: hack through kernel source then :)
<15> algorithm is totally trhere
<17> the memory is reallocated pagewise
<17> "reallocate" is nonsense, sorry
<15> tried kernel docs hareldvd ?
<17> the least used mem pages are moved to the swap
<17> as soon as THIS page is needed, kernel will fetch it back.
<15> trhank you :)
<17> At the moment, no prefetch from swap is done, this will come AFIK
<14> usn_work: All that I know. What I miss is when is the space used by the disk cache prefered so the cache size is reduced in order to free up physical memory.
<17> no. Disk cache will always be skimped
<17> If memory is needed, disk cache will be synced and freed
<17> in worst case you are running out of disk cache
<14> usn_work: That is my impression. but to a limit of disk cache size then real swap operations start.
<17> I don't think so. AFAIK, the only situation with swap in use AND using disk cache is a freed mem page in RAM while there is another in swap
<14> That's where I disagree. It seems to me, using monitoring tools, that the cache will not be smaller then some size (about 20% of my physical ram (1G)).
<17> interesting
<14> usn_work: Do you use KDE?
<17> mh, the web is rather silent. Pages like http://www.linux-tutorial.info/modules.php?name=Tutorial&pageid=311 are verbose, but not about disk cache
<17> yes, I do
<14> usn_work: then try kinfocenter and look at the memory "tab"
<17> I am widely far from swapping :))
<17> enough phys. RAM here
<14> I currently use virtual machines with vmplay. It eats a lot of memory.
<17> opening gimp :))
<17> mh, looks like 5% free and 5% cache al the time
<17> http://kerneltrap.org/node/5619
<17> kewl stuff
<18> Hi
<19> does anybody know if this: ADDRCONF(NETDEV_UP): eth0: link is not ready
<19> can correspond to the eth0 link dropping after a while?
<20> If you're building a Linux 2.6 kernel to network boot say over PXE, what do you do with the modules?
<21> why sata is under scsi branch of drivers?
<21> just wondering
<22> im trying to make a kernel that has the aacraid module statically loaded, but i can't find the module in make menuconfig... anyone know where it is?
<23> dumezil, did u try the search tool?
<24> echo "CONFIG_SCSI_AACRAID=y" >> /usr/src/linux/.config
<22> Acid`X: forgive me, but i don't know about the search tool...
<22> bobbens: that is one way to do it, but is it in the menuconfig? the kernel is 2.6.5 btw
<23> dumezil, its ok, the key in 2.6 is '/' or '?'
<22> inside menuconfig?
<23> dumezil, in the top of menuconfig says wich one is the key
<23> yes
<23> dumezil, found it?
<22> i see aacraid.h in the directory linux/drivers/scsi/ , but i don't see the option in menuconfig. ? just is a shortcut for help and / doesn't do anything
<23> gonna check on my config, but not sure if its in the same place
<22> its in drivers/scsi/aacraid ...
<23> -> SCSI low-level drivers
<22> its weird... i'll just use bobben's method i guess
<23> aye
<22> once i insert that into the .config file and rebuild the kernel, i should be able to find aacraid.o in the directory structure, right?
<25> could someone point me to right direction? I'm trying to merge fuse to old 2.6.9 kernel. I got the module compiled with no problems. Well the module just isn't loaded on demand as in those later kernels that have fuse offically. Where should I start exploring?
<26> Why an old kernel?
<25> because of rhel...
<26> Oh
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