Re: Activating APIC on single processor
Francis Pieraut wrote: >I try to activate APIC interrruption on a single processor(PIII) with >kernel2.4.0-test11. > >I activate APIC interruption with the configuration of linux kernel >2.4.0test-11. In the linux kernel configuration under processor type and >features I activate "APIC and IO-APIC support on uniprocessor", and I >desactivate "Symmetric multi-processing support". The only way I found to >check APIC activation is looking into /proc/interrupts, no "IO-APIC" can >be found there. So I read IO-APIC.txt and I suppose there sould be >conflicts with IRQ of my PCI cards. So I remove all my PCI cards and still >have no APIC interrupt. >Is there another way to check APIC activation? >Am-I doing to right things to activate IO-APIC? CONFIG_X86_UP_IOAPIC only works if you actually have an IO-APIC (the "and" in the description is strict), but most UP boards don't have one. You should apply the UP-APIC patch, available at: http://www.csd.uu.se/~mikpe/linux/upapic/ /Mikael - 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: Activating APIC on single processor
Hi I have try to activate APIC in my BIOS, but I didn't have this option. Have you ever try it? Tanks Francis Pieraut Francis Pieraut On Thu, 28 Dec 2000, John Levon wrote: > On 28 Dec 2000, David Huggins-Daines wrote: > > > <[EMAIL PROTECTED]> writes: > > > > > I activate APIC interruption with the configuration of linux kernel > > > 2.4.0test-11. In the linux kernel configuration under processor type and > > > features I activate "APIC and IO-APIC support on uniprocessor", and I > > > desactivate "Symmetric multi-processing support". The only way I found to > > > check APIC activation is looking into /proc/interrupts, no "IO-APIC" can > > > be found there. So I read IO-APIC.txt and I suppose there sould be > > > conflicts with IRQ of my PCI cards. So I remove all my PCI cards and still > > > have no APIC interrupt. > > > Is there another way to check APIC activation? > > > Am-I doing to right things to activate IO-APIC? > > > > You might not actually have an IO-APIC or even a local APIC. This is > > the case with the Mobile PIII for instance (I puzzled over this myself > > for a long time). > > > > To find out for sure, run: > > > > grep 'flags.*apic' /proc/cpuinfo > > This isn't for sure. I bet you *do* have a local APIC. > > This flag is missing on a Pentium II here - I think the BIOS disables > it. However, it can be enabled in the normal way just fine. > > The presence of an IO-APIC is a different matter. > > thanks > john > > -- > "The majority of the stupid is invincible and guaranteed for all time. The > terror of their tyranny, however, is alleviated by their lack of consistency." > - Albert Einstein > - 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: Activating APIC on single processor
On 28 Dec 2000, David Huggins-Daines wrote: > <[EMAIL PROTECTED]> writes: > > > I activate APIC interruption with the configuration of linux kernel > > 2.4.0test-11. In the linux kernel configuration under processor type and > > features I activate "APIC and IO-APIC support on uniprocessor", and I > > desactivate "Symmetric multi-processing support". The only way I found to > > check APIC activation is looking into /proc/interrupts, no "IO-APIC" can > > be found there. So I read IO-APIC.txt and I suppose there sould be > > conflicts with IRQ of my PCI cards. So I remove all my PCI cards and still > > have no APIC interrupt. > > Is there another way to check APIC activation? > > Am-I doing to right things to activate IO-APIC? > > You might not actually have an IO-APIC or even a local APIC. This is > the case with the Mobile PIII for instance (I puzzled over this myself > for a long time). > > To find out for sure, run: > > grep 'flags.*apic' /proc/cpuinfo This isn't for sure. I bet you *do* have a local APIC. This flag is missing on a Pentium II here - I think the BIOS disables it. However, it can be enabled in the normal way just fine. The presence of an IO-APIC is a different matter. thanks john -- "The majority of the stupid is invincible and guaranteed for all time. The terror of their tyranny, however, is alleviated by their lack of consistency." - Albert Einstein - 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: Activating APIC on single processor
<[EMAIL PROTECTED]> writes: > I activate APIC interruption with the configuration of linux kernel > 2.4.0test-11. In the linux kernel configuration under processor type and > features I activate "APIC and IO-APIC support on uniprocessor", and I > desactivate "Symmetric multi-processing support". The only way I found to > check APIC activation is looking into /proc/interrupts, no "IO-APIC" can > be found there. So I read IO-APIC.txt and I suppose there sould be > conflicts with IRQ of my PCI cards. So I remove all my PCI cards and still > have no APIC interrupt. > Is there another way to check APIC activation? > Am-I doing to right things to activate IO-APIC? You might not actually have an IO-APIC or even a local APIC. This is the case with the Mobile PIII for instance (I puzzled over this myself for a long time). To find out for sure, run: grep 'flags.*apic' /proc/cpuinfo -- David Huggins-Daines- [EMAIL PROTECTED] - 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/
Activating APIC on single processor
Hi I try to activate APIC interrruption on a single processor(PIII) with kernel2.4.0-test11. I activate APIC interruption with the configuration of linux kernel 2.4.0test-11. In the linux kernel configuration under processor type and features I activate "APIC and IO-APIC support on uniprocessor", and I desactivate "Symmetric multi-processing support". The only way I found to check APIC activation is looking into /proc/interrupts, no "IO-APIC" can be found there. So I read IO-APIC.txt and I suppose there sould be conflicts with IRQ of my PCI cards. So I remove all my PCI cards and still have no APIC interrupt. Is there another way to check APIC activation? Am-I doing to right things to activate IO-APIC? Any help will be very appreciate Francis Pieraut - 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/
Activating APIC on single processor
Hi I try to activate APIC interrruption on a single processor(PIII) with kernel2.4.0-test11. I activate APIC interruption with the configuration of linux kernel 2.4.0test-11. In the linux kernel configuration under processor type and features I activate "APIC and IO-APIC support on uniprocessor", and I desactivate "Symmetric multi-processing support". The only way I found to check APIC activation is looking into /proc/interrupts, no "IO-APIC" can be found there. So I read IO-APIC.txt and I suppose there sould be conflicts with IRQ of my PCI cards. So I remove all my PCI cards and still have no APIC interrupt. Is there another way to check APIC activation? Am-I doing to right things to activate IO-APIC? Any help will be very appreciate Francis Pieraut - 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: Activating APIC on single processor
[EMAIL PROTECTED] writes: I activate APIC interruption with the configuration of linux kernel 2.4.0test-11. In the linux kernel configuration under processor type and features I activate "APIC and IO-APIC support on uniprocessor", and I desactivate "Symmetric multi-processing support". The only way I found to check APIC activation is looking into /proc/interrupts, no "IO-APIC" can be found there. So I read IO-APIC.txt and I suppose there sould be conflicts with IRQ of my PCI cards. So I remove all my PCI cards and still have no APIC interrupt. Is there another way to check APIC activation? Am-I doing to right things to activate IO-APIC? You might not actually have an IO-APIC or even a local APIC. This is the case with the Mobile PIII for instance (I puzzled over this myself for a long time). To find out for sure, run: grep 'flags.*apic' /proc/cpuinfo -- David Huggins-Daines- [EMAIL PROTECTED] - 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: Activating APIC on single processor
On 28 Dec 2000, David Huggins-Daines wrote: [EMAIL PROTECTED] writes: I activate APIC interruption with the configuration of linux kernel 2.4.0test-11. In the linux kernel configuration under processor type and features I activate "APIC and IO-APIC support on uniprocessor", and I desactivate "Symmetric multi-processing support". The only way I found to check APIC activation is looking into /proc/interrupts, no "IO-APIC" can be found there. So I read IO-APIC.txt and I suppose there sould be conflicts with IRQ of my PCI cards. So I remove all my PCI cards and still have no APIC interrupt. Is there another way to check APIC activation? Am-I doing to right things to activate IO-APIC? You might not actually have an IO-APIC or even a local APIC. This is the case with the Mobile PIII for instance (I puzzled over this myself for a long time). To find out for sure, run: grep 'flags.*apic' /proc/cpuinfo This isn't for sure. I bet you *do* have a local APIC. This flag is missing on a Pentium II here - I think the BIOS disables it. However, it can be enabled in the normal way just fine. The presence of an IO-APIC is a different matter. thanks john -- "The majority of the stupid is invincible and guaranteed for all time. The terror of their tyranny, however, is alleviated by their lack of consistency." - Albert Einstein - 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: Activating APIC on single processor
Hi I have try to activate APIC in my BIOS, but I didn't have this option. Have you ever try it? Tanks Francis Pieraut Francis Pieraut On Thu, 28 Dec 2000, John Levon wrote: On 28 Dec 2000, David Huggins-Daines wrote: [EMAIL PROTECTED] writes: I activate APIC interruption with the configuration of linux kernel 2.4.0test-11. In the linux kernel configuration under processor type and features I activate "APIC and IO-APIC support on uniprocessor", and I desactivate "Symmetric multi-processing support". The only way I found to check APIC activation is looking into /proc/interrupts, no "IO-APIC" can be found there. So I read IO-APIC.txt and I suppose there sould be conflicts with IRQ of my PCI cards. So I remove all my PCI cards and still have no APIC interrupt. Is there another way to check APIC activation? Am-I doing to right things to activate IO-APIC? You might not actually have an IO-APIC or even a local APIC. This is the case with the Mobile PIII for instance (I puzzled over this myself for a long time). To find out for sure, run: grep 'flags.*apic' /proc/cpuinfo This isn't for sure. I bet you *do* have a local APIC. This flag is missing on a Pentium II here - I think the BIOS disables it. However, it can be enabled in the normal way just fine. The presence of an IO-APIC is a different matter. thanks john -- "The majority of the stupid is invincible and guaranteed for all time. The terror of their tyranny, however, is alleviated by their lack of consistency." - Albert Einstein - 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: Activating APIC on single processor
Francis Pieraut wrote: I try to activate APIC interrruption on a single processor(PIII) with kernel2.4.0-test11. I activate APIC interruption with the configuration of linux kernel 2.4.0test-11. In the linux kernel configuration under processor type and features I activate "APIC and IO-APIC support on uniprocessor", and I desactivate "Symmetric multi-processing support". The only way I found to check APIC activation is looking into /proc/interrupts, no "IO-APIC" can be found there. So I read IO-APIC.txt and I suppose there sould be conflicts with IRQ of my PCI cards. So I remove all my PCI cards and still have no APIC interrupt. Is there another way to check APIC activation? Am-I doing to right things to activate IO-APIC? CONFIG_X86_UP_IOAPIC only works if you actually have an IO-APIC (the "and" in the description is strict), but most UP boards don't have one. You should apply the UP-APIC patch, available at: http://www.csd.uu.se/~mikpe/linux/upapic/ /Mikael - 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/
