PID's
This is probably a mundane question, but... Is there a way to recycle unused PID's without rebooting the kernel? So instead of the next available PID always getting larger and larger, just reset it to use the first unused PID after 1. Is this possible? -- Ted - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
Re: Break 2.4 VM in five easy steps
>Furthermore, I am not demanding anything, much less "priority fixing" >for this bug. Its my personal opinion that this is the most critical bug >in the 2.4 series, and if I had the time and skill, this is what I would >be working on. Because I don't have the time and skill, I am perfectly >happy to wait until those that do fix the problem. To say it isn't a >problem because I can buy more disk is nonsense, and its that sort of >thinking that leads to constant need to upgrade hardware in the >proprietary OS world. > >Sean This would reflect the Microsoft way of programming: If there's a bug in the system, don't fix it, but upgrade your hardware. Why do you think the requirements for Windows is so great? Most of their code is very inefficient. I'm sure they programmed their kernel in Visual Basic. The worst part is that they get paid to do this! I program in Linux because I don't want to be associated with that mindset that made Microsoft such a [fill in the blank]. As for the 2.4 VM problem, what are you doing with your machine that's making it use up so much memory? I have several processes running on mine all the time, including a slew in X, and I have yet to see significant swap activity. -- Ted P.S. My faithful Timex Sinclair from the 80's never had swap :-) - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
Re: Break 2.4 VM in five easy steps
>Is anybody interested in making "swapoff()" better? Please speak up.. > > Linus I'd be happy to write a new routine in assembly, if I had a clue as to how the VM algorithm works in Linux. What should swapoff do if all physical memory is in use? How does the swapping algorithm balance against cache memory? Can someone point me to where I can find the exact details of the VM mechanism in Linux? Thanks! -- Ted - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
Re: Break 2.4 VM in five easy steps
> >I'd be happy to write a new routine in assembly > >I sincerely hope you're joking. > >It's the algorithm that needs fixing, not the implementation of that >algorithm. Writing in assembler? Hope you're proficient at writing in >x86, PPC, 68k, MIPS (several varieties), ARM, SPARC, and whatever other >architectures we support these days. And you darn well better hope every >other kernel hacker is as proficient as that, to be able to read it. I realize that assembly is platform-specific. Being that I use the IA32 class machine, that's what I would write for. Others who use other platforms could do the deed for their native language. As for the algorithm, I'm sure that whatever method is used to handle page swapping, it has to comply with the kernel's memory management scheme already in place. That's why I would need the details so that I wouldn't create more problems than already present. Being that most users are on the IA32 platform, I'm sure they wouldn't reject an assembly solution to this problem. As for kernel acceptance, that's an issue for the political eggheads. Not my forte. :-) -- Ted - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
ATI Rage 128
Are there any plans for including support for the ATI Rage 128 chipset into svgalib? The VESA setting does not work. Causes any program using svgalib to crash. Are there any configuration settings in the kernel that may help with this? The kernel I am using is 2.4.4 and the card I am using is the Rage Fury (32 MB). The svgalib version is 1.4.2 Framebuffer does have support for Rage 128, so I don't see why svgalib doesn't. Thanks! -- Ted - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
Questions about Kernel 2.4.0.?
There is a link in /lib/modules/2.4.0.11:
build->/usr/src/linux
created by the Makefile (make
modules_install).What for? depmod doesn't like this link. It gets
confused.
Lines missing from
/usr/src/linux/include/asm/uaccess.h: #define
put_user_ret(x,ptr,ret) ({ if (put_user(x,ptr)) return ret; })
#define get_user_ret(x,ptr,ret) ({ if (get_user(x,ptr)) return ret;
}) #define __put_user_ret(x,ptr,ret) ({ if (__put_user(x,ptr))
return ret; }) #define __get_user_ret(x,ptr,ret) ({ if
(__get_user(x,ptr)) return ret; })
Some modules will not compile without these lines
included.
Where are the drivers for bt878 (Video For
Linux)?
Some of the device special files are missing when
using devfs.
devfsd is running (loaded at the beginning of rc.S
by init).
There was no /dev/lp0 on my system, even though
module lp was loaded.
After creating this file explicitly with mknod, the
printer worked.
This problem is probably the fault of X11 - it
doesn't repaint the screen properly
after coming out of console mode. I have to switch
back and forth several times
before I get a proper repaint. May be related to
using framebuffer with X.
X crashes and locks completely when using sound.
Anyone know why?
-- Ted
Re: Questions about Kernel 2.4.0.?
- Original Message -
From:
Android
To: [EMAIL PROTECTED]
Sent: Saturday, November 25, 2000 2:20
PM
Subject: Questions about Kernel
2.4.0.?
1) There is a link in /lib/modules/2.4.0.11:
build->/usr/src/linux
created by the Makefile (make modules_install).
What for?
2) Lines missing from
/usr/src/linux/include/asm/uaccess.h: #define
put_user_ret(x,ptr,ret) ({ if (put_user(x,ptr)) return ret; })
#define get_user_ret(x,ptr,ret) ({ if (get_user(x,ptr)) return ret;
}) #define __put_user_ret(x,ptr,ret) ({ if (__put_user(x,ptr))
return ret; }) #define __get_user_ret(x,ptr,ret) ({ if
(__get_user(x,ptr)) return ret; })
Some modules will not compile without these lines
included.
3) Where are the drivers for bt878 (Video For
Linux)?
4) Some of the device special files are missing
when using devfs.
devfsd is running (loaded at the beginning of
rc.S by init).
There was no /dev/lp0 on my system, even though
module lp was loaded.
After creating this file explicitly with mknod,
the printer worked.
5) This problem is probably the fault of X11 - it
doesn't repaint the screen properly
after coming out of console mode. I have to
switch back and forth several times
before I get a proper repaint. May be related to
using framebuffer with X.
X crashes and locks completely when using sound.
Anyone know why?
6) When going through the bash command history
(using the arrow keys)
while in framebuffer mode, there will be a pause
for about 3 seconds - during this time,
the system is totally frozen until this pause has
expired. Any ideas on this?
7) How does one disable the display of the
penguin logo when booting in framebuffer
mode so that all video lines are available for
text? I know this can be removed with setfont
and possible fbset, but I would prefer the video
display be "normal" from the start. Thanks.
-- Ted
P.S. Ignore the ads that follow this line - this
is what happens when using free POP accounts.
Re: XFree 4.0.1/NVIDIA 0.9-5/2.4.0-testX/11 woes [solved]
> > I've never seen such thing as code without bugs. In my experience, > > the NVIDIA drivers are by far the most complete and solid 3D drivers > > under Linux. > > You are welcome to your opinion. I've got this great bridge to sell you too The most stable of all video drivers under Linux has to be the standard VGA driver. As for SVGA, then VESA wins that territory. The problem with specific SVGA/Accelorator drivers is that the details of the video card operation is kept secret, and what information is known is scarce. Much of it is found by experimentation, and dare I say, reverse engineering. In most cases, you're lucky you get a working driver at all. The same holds true for sound cards. So, unless the company has fully released the details of their NVIDIA card to whomever wrote the Linux driver, then don't think for a moment that it is crash-free. Just one wrong bit sent to an incorrect port, and it's time to reset your machine. I don't need to mention data loss. -- Ted - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] Please read the FAQ at http://www.tux.org/lkml/
Questions about Kernel 2.4.0.*
1) There is a link in /lib/modules/2.4.0.11: build->/usr/src/linuxcreated by the Makefile (make modules_install). What for? 2) (Answered) 3) (Answered) 4) Some of the device special files are missing when using devfs. devfsd is running (loaded at the beginning of rc.S by init). There was no /dev/lp0 on my system, even though module lp was loaded. After creating this file explicitly with mknod, the printer worked. 5) This problem is probably the fault of X11 - it doesn't repaint the screen properly after coming out of console mode. I have to switch back and forth several times before I get a proper repaint. May be related to using framebuffer with X. X crashes and locks completely when using sound. Anyone know why? 6) When going through the bash command history (using the arrow keys) while in framebuffer mode, there will be a pause for about 3 seconds - during this time, the system is totally frozen until this pause has expired. Any ideas on this? I know this is a problem with bash - this problem doesn't occur when using tcsh. 7) How does one disable the display of the penguin logo when booting in framebuffer mode so that all video lines are available for text? I know this can be removed with setfont and possible fbset, but I would prefer the video display be "normal" from the start. Thanks. -- Ted
Questions about Kernel 2.4.0.*
1) There is a link in /lib/modules/2.4.0.11: build->/usr/src/linuxcreated by the Makefile (make modules_install). What for? 2) (Answered) 3) (Answered) 4) Some of the device special files are missing when using devfs. devfsd is running (loaded at the beginning of rc.S by init). There was no /dev/lp0 on my system, even though module lp was loaded. After creating this file explicitly with mknod, the printer worked. 5) This problem is probably the fault of X11 - it doesn't repaint the screen properly after coming out of console mode. I have to switch back and forth several times before I get a proper repaint. May be related to using framebuffer with X. X crashes and locks completely when using sound. Anyone know why? 6) When going through the bash command history (using the arrow keys) while in framebuffer mode, there will be a pause for about 3 seconds - during this time, the system is totally frozen until this pause has expired. Any ideas on this? I know this is a problem with bash - this problem doesn't occur when using tcsh. 7) How does one disable the display of the penguin logo when booting in framebuffer mode so that all video lines are available for text? I know this can be removed with setfont and possible fbset, but I would prefer the video display be "normal" from the start. Thanks. -- Ted ** Free web-based/POP3 mail from turbosport.com, turbomail.tv, mailplanet.net, and webmailcity.com ** To report SPAM mail please send an e-mail to [EMAIL PROTECTED]
Re: Linux 2.2.18 release notes
> ... added basic support for the Pentium IV. Unfortunately Intel chose to > ignore all precedent in model numbering via cpuid and report a > family of '15'. This sudden jump broke assumptions in the > kernel tree without any warning. Intel have failed to provide > good reasons for their change. We have chosen to continue to > report the Pentium IV as a '686' class processor. The full > family data is provided via cpuinfo. > > In addition the early Pentium IV chips appear to have some > problems. You should be using stepping 7 or higher processors > with the latest shipping microcode update if you wish to run > Linux on a Pentium IV processor. > > + Intel Pentium IV support How is the Pentium IV more advanced than the Pentium III, other than speed? Why would LInux care about a 1500 MHz clock or 400 MHz bus speed? Just treat the PIV as a faster PIII. -- Ted - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] Please read the FAQ at http://www.tux.org/lkml/
Re: Some experience of linux on a Laptop
>I have come to the conclusion that linux is NOT suitable for the general >desktop market. I have to disagree on this. It runs fine on most PC's, as they use standard devices. Just say NO to anything proprietary. This includes Toshiba. Makers of such odd machines should supply their own native drivers if they want to be supported. >Features I would like in the kernel: >1: Make the whole insmod-rmmod tingie a kernel internal so they could be >trigged before rootmount. How can you load modules into the kernel before root is mounted? No harddrive accessible means no modules. >2: Compile time optimization options in Make menuconfig >3: Lilo/grub config in make menuconfig Why? >4: make bzImage && make modules && make modules install && cp >arch/i386/boot/bzImage /boot/'uname -r' something inside make menuconfig > >5: Better support for toshiba computers... well try =) Talk to Toshiba. See if they are willing to part with "secret" information so that you can create specific drivers for Linux. After that, I bet your next comp. won't be from them. :-) >6: Wouldn't it be easier for svgalib/framebuffer/GGI/X11 and others if the >graphiccard drivers where kernel modules? Again, Framebuffer cannot be a module as it needs to be in place before the kernel even gets to init (the program). Since the kernel cannot load modules before the drives are mounted, no module here. >7: As I said mount with statistics database of files. Just how much detail of file usage do you want? Just open and close? Do you want reads and writes too? >8: A way to change kernel without rebooting. I have no diskdrive or >cddrive in my laptop so I often do drastic things when I install a new >distribution. > In order to change the kernel, all running processes must be terminated. How can you install a new kernel without any process to make the changeover? >I'm not on the list so please CC me any responses > >John Nilsson -- Replies by Ted - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
