Re: Kernel - PAE vs. non-PAE
Steven F. LeBrun wrote: When I installed F11 on my Toshiba laptop, it installed the PAE version of the kernel. I am assuming that my laptop has a CPU with Physical Address Extensions functionality and can therefore address up to 64GB of memory. My laptop only has 3 GB installed. Can anyone explain the pro's and con's of using the PAE version of Linux kernel instead of the non-PAE version? The real reason to use PAE is to get the security benefit of the NX feature. http://en.wikipedia.org/wiki/Physical_Address_Extension Would the PAE version of the 32-bit Linux Kernel see 4 GB of memory if it was installed where Vista 32-bits only sees about 3GB? For that matter would the non-PAE version see the full 4 GB? Depending on the laptop that may or may not buy you 4GB capability, there are BIOS and hardware issues which I'm not about to try and remember, much less explain. If you hardware and BIOS support 4GB, yes you will use it with PAE. -- Bill Davidsen david...@tmr.com We have more to fear from the bungling of the incompetent than from the machinations of the wicked. - from Slashdot -- fedora-list mailing list fedora-list@redhat.com To unsubscribe: https://www.redhat.com/mailman/listinfo/fedora-list Guidelines: http://fedoraproject.org/wiki/Communicate/MailingListGuidelines
Re: Kernel - PAE vs. non-PAE
On Wednesday 01 July 2009 02:27:01 Steven F. LeBrun wrote: When I installed F11 on my Toshiba laptop, it installed the PAE version of the kernel. I am assuming that my laptop has a CPU with Physical Address Extensions functionality and can therefore address up to 64GB of memory. My laptop only has 3 GB installed. Can anyone explain the pro's and con's of using the PAE version of Linux kernel instead of the non-PAE version? Other than PAE don't forget that those kernels support natively NX stack protection, while for the i686 kernel that is done through software emulation. http://en.wikipedia.org/wiki/NX_bit This is a FAQ and I suppose it (should be)/is stored somewhere. :-) -- José Abílio -- fedora-list mailing list fedora-list@redhat.com To unsubscribe: https://www.redhat.com/mailman/listinfo/fedora-list Guidelines: http://fedoraproject.org/wiki/Communicate/MailingListGuidelines
Re: Kernel - PAE vs. non-PAE
On 06/30/2009 11:51 PM, Steven F. LeBrun wrote: On 06/30/2009 11:06 PM, Shannon McMackin wrote: On 06/30/2009 09:27 PM, Steven F. LeBrun wrote: When I installed F11 on my Toshiba laptop, it installed the PAE version of the kernel. I am assuming that my laptop has a CPU with Physical Address Extensions functionality and can therefore address up to 64GB of memory. My laptop only has 3 GB installed. Can anyone explain the pro's and con's of using the PAE version of Linux kernel instead of the non-PAE version? Would the PAE version of the 32-bit Linux Kernel see 4 GB of memory if it was installed where Vista 32-bits only sees about 3GB? For that matter would the non-PAE version see the full 4 GB? -- Steven F. LeBrun Quote: /There are 10 types of people in this world, those that understand binary and those who don't./ Some laptops can only physically use 3gb of RAM. In this case, the PAE kernel would not be an advantage for you. If you install 4gb of RAM, then you will need the PAE kernel to use all 4gb. Again, this depends on the chipset. The core-duo can only use 3gb, but the core2-duo can use 4gb. In my case, where my laptop only has 3GB of memory installed, is there a disadvantage to using the PAE kernel instead of the non-PAE? -- Steven F. LeBrun Quote: /The objection to fairy stories is that they tell children there are dragons. But children have always known there are dragons. Fairy stories tell children that dragons can be killed./ -- G.K. Chesterton There is no advantage or disadvantage that I am aware of... -- fedora-list mailing list fedora-list@redhat.com To unsubscribe: https://www.redhat.com/mailman/listinfo/fedora-list Guidelines: http://fedoraproject.org/wiki/Communicate/MailingListGuidelines
Kernel - PAE vs. non-PAE
When I installed F11 on my Toshiba laptop, it installed the PAE version of the kernel. I am assuming that my laptop has a CPU with Physical Address Extensions functionality and can therefore address up to 64GB of memory. My laptop only has 3 GB installed. Can anyone explain the pro's and con's of using the PAE version of Linux kernel instead of the non-PAE version? Would the PAE version of the 32-bit Linux Kernel see 4 GB of memory if it was installed where Vista 32-bits only sees about 3GB? For that matter would the non-PAE version see the full 4 GB? -- Steven F. LeBrun Quote: /There are 10 types of people in this world, those that understand binary and those who don't./ -- fedora-list mailing list fedora-list@redhat.com To unsubscribe: https://www.redhat.com/mailman/listinfo/fedora-list Guidelines: http://fedoraproject.org/wiki/Communicate/MailingListGuidelines
Re: Kernel - PAE vs. non-PAE
I'm installing Fedora 11 on a rather ancient Toshiba Satellite 1905-S303 laptop which ought to be tossed in the trash can, and that has the PAE kernel installed, too. Bob On 06/30/2009 09:27 PM, Steven F. LeBrun wrote: When I installed F11 on my Toshiba laptop, it installed the PAE version of the kernel. I am assuming that my laptop has a CPU with Physical Address Extensions functionality and can therefore address up to 64GB of memory. My laptop only has 3 GB installed. Can anyone explain the pro's and con's of using the PAE version of Linux kernel instead of the non-PAE version? Would the PAE version of the 32-bit Linux Kernel see 4 GB of memory if it was installed where Vista 32-bits only sees about 3GB? For that matter would the non-PAE version see the full 4 GB? -- Steven F. LeBrun Quote: /There are 10 types of people in this world, those that understand binary and those who don't./ -- fedora-list mailing list fedora-list@redhat.com To unsubscribe: https://www.redhat.com/mailman/listinfo/fedora-list Guidelines: http://fedoraproject.org/wiki/Communicate/MailingListGuidelines
Re: Kernel - PAE vs. non-PAE
On 06/30/2009 09:27 PM, Steven F. LeBrun wrote: When I installed F11 on my Toshiba laptop, it installed the PAE version of the kernel. I am assuming that my laptop has a CPU with Physical Address Extensions functionality and can therefore address up to 64GB of memory. My laptop only has 3 GB installed. Can anyone explain the pro's and con's of using the PAE version of Linux kernel instead of the non-PAE version? Would the PAE version of the 32-bit Linux Kernel see 4 GB of memory if it was installed where Vista 32-bits only sees about 3GB? For that matter would the non-PAE version see the full 4 GB? -- Steven F. LeBrun Quote: /There are 10 types of people in this world, those that understand binary and those who don't./ Some laptops can only physically use 3gb of RAM. In this case, the PAE kernel would not be an advantage for you. If you install 4gb of RAM, then you will need the PAE kernel to use all 4gb. Again, this depends on the chipset. The core-duo can only use 3gb, but the core2-duo can use 4gb. -- fedora-list mailing list fedora-list@redhat.com To unsubscribe: https://www.redhat.com/mailman/listinfo/fedora-list Guidelines: http://fedoraproject.org/wiki/Communicate/MailingListGuidelines
Re: Kernel - PAE vs. non-PAE
On 06/30/2009 11:06 PM, Shannon McMackin wrote: On 06/30/2009 09:27 PM, Steven F. LeBrun wrote: When I installed F11 on my Toshiba laptop, it installed the PAE version of the kernel. I am assuming that my laptop has a CPU with Physical Address Extensions functionality and can therefore address up to 64GB of memory. My laptop only has 3 GB installed. Can anyone explain the pro's and con's of using the PAE version of Linux kernel instead of the non-PAE version? Would the PAE version of the 32-bit Linux Kernel see 4 GB of memory if it was installed where Vista 32-bits only sees about 3GB? For that matter would the non-PAE version see the full 4 GB? -- Steven F. LeBrun Quote: /There are 10 types of people in this world, those that understand binary and those who don't./ Some laptops can only physically use 3gb of RAM. In this case, the PAE kernel would not be an advantage for you. If you install 4gb of RAM, then you will need the PAE kernel to use all 4gb. Again, this depends on the chipset. The core-duo can only use 3gb, but the core2-duo can use 4gb. In my case, where my laptop only has 3GB of memory installed, is there a disadvantage to using the PAE kernel instead of the non-PAE? -- Steven F. LeBrun Quote: /The objection to fairy stories is that they tell children there are dragons. But children have always known there are dragons. Fairy stories tell children that dragons can be killed./ -- G.K. Chesterton -- fedora-list mailing list fedora-list@redhat.com To unsubscribe: https://www.redhat.com/mailman/listinfo/fedora-list Guidelines: http://fedoraproject.org/wiki/Communicate/MailingListGuidelines
