Re: 2.2.20pre1: Problems with SMP
On Wed, May 16, 2001, Shane Wegner <[EMAIL PROTECTED]> wrote: > On Wed, May 16, 2001 at 12:56:55PM -0700, Johannes Erdfelt wrote: > > Could you try this patch? It applies on top of 2.2.20pre1 > > > > It also cleans up a couple of comments > > That fixes it alright. Excellent. Alan, could you apply the patch to 2.2.20pre2? JE - 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: 2.2.20pre1: Problems with SMP
On Wed, May 16, 2001 at 12:56:55PM -0700, Johannes Erdfelt wrote: > > Could you try this patch? It applies on top of 2.2.20pre1 > > It also cleans up a couple of comments That fixes it alright. Shane -- Shane Wegner: [EMAIL PROTECTED] http://www.cm.nu/~shane/ PGP: 1024D/FFE3035D A0ED DAC4 77EC D674 5487 5B5C 4F89 9A4E FFE3 035D - 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: 2.2.20pre1: Problems with SMP
On Mon, May 07, 2001, Shane Wegner <[EMAIL PROTECTED]> wrote:
> On Mon, May 07, 2001 at 11:02:50AM -0700, Johannes Erdfelt wrote:
> > On Mon, May 07, 2001, Shane Wegner <[EMAIL PROTECTED]> wrote:
> > >
> > > That does indeed correct the problem. 2.2.20pre1 now works
> > > as expected.
> >
> > Hmm, that uses a VIA based chipset. I didn't know they did SMP yet. Does
> > 2.4 work on this system?
>
> The last 2.4 kernel I tried was 2.4.3 I believe and it
> worked fine more or less. I haven't tried any later 2.4
> kernels yet.
Could you try this patch? It applies on top of 2.2.20pre1
It also cleans up a couple of comments
JE
--- arch/i386/kernel/io_apic.c.old Wed May 16 12:48:03 2001
+++ arch/i386/kernel/io_apic.c Wed May 16 12:55:30 2001
@@ -204,6 +204,8 @@
/*
* We disable IO-APIC IRQs by setting their 'destination CPU mask' to
* zero. Trick by Ramesh Nalluri.
+ * Not anymore. This causes problems on some IO-APIC's, notably AMD 760MP's
+ * So we do it a more 2.4 kind of way now which should be safer -jerdfelt
*/
DO_ACTION( mask,0, |= 0x0001, io_apic_sync(entry->apic))/* mask = 1 */
DO_ACTION( unmask, 0, &= 0xfffe, )/* mask = 0 */
@@ -646,8 +648,8 @@
entry.delivery_mode = dest_LowestPrio;
entry.dest_mode = 1;/* logical delivery */
- entry.mask = 0; /* enable IRQ */
- entry.dest.logical.logical_dest = 0xff; /* but no route */
+ entry.mask = 1; /* disable IRQ */
+ entry.dest.logical.logical_dest = 0xff;
idx = find_irq_entry(apic,pin,mp_INT);
if (idx == -1) {
-
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Re: 2.2.20pre1: Problems with SMP
On Mon, May 07, 2001, Shane Wegner [EMAIL PROTECTED] wrote:
On Mon, May 07, 2001 at 11:02:50AM -0700, Johannes Erdfelt wrote:
On Mon, May 07, 2001, Shane Wegner [EMAIL PROTECTED] wrote:
That does indeed correct the problem. 2.2.20pre1 now works
as expected.
Hmm, that uses a VIA based chipset. I didn't know they did SMP yet. Does
2.4 work on this system?
The last 2.4 kernel I tried was 2.4.3 I believe and it
worked fine more or less. I haven't tried any later 2.4
kernels yet.
Could you try this patch? It applies on top of 2.2.20pre1
It also cleans up a couple of comments
JE
--- arch/i386/kernel/io_apic.c.old Wed May 16 12:48:03 2001
+++ arch/i386/kernel/io_apic.c Wed May 16 12:55:30 2001
@@ -204,6 +204,8 @@
/*
* We disable IO-APIC IRQs by setting their 'destination CPU mask' to
* zero. Trick by Ramesh Nalluri.
+ * Not anymore. This causes problems on some IO-APIC's, notably AMD 760MP's
+ * So we do it a more 2.4 kind of way now which should be safer -jerdfelt
*/
DO_ACTION( mask,0, |= 0x0001, io_apic_sync(entry-apic))/* mask = 1 */
DO_ACTION( unmask, 0, = 0xfffe, )/* mask = 0 */
@@ -646,8 +648,8 @@
entry.delivery_mode = dest_LowestPrio;
entry.dest_mode = 1;/* logical delivery */
- entry.mask = 0; /* enable IRQ */
- entry.dest.logical.logical_dest = 0xff; /* but no route */
+ entry.mask = 1; /* disable IRQ */
+ entry.dest.logical.logical_dest = 0xff;
idx = find_irq_entry(apic,pin,mp_INT);
if (idx == -1) {
-
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Re: 2.2.20pre1: Problems with SMP
On Wed, May 16, 2001 at 12:56:55PM -0700, Johannes Erdfelt wrote: Could you try this patch? It applies on top of 2.2.20pre1 It also cleans up a couple of comments That fixes it alright. Shane -- Shane Wegner: [EMAIL PROTECTED] http://www.cm.nu/~shane/ PGP: 1024D/FFE3035D A0ED DAC4 77EC D674 5487 5B5C 4F89 9A4E FFE3 035D - 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: 2.2.20pre1: Problems with SMP
On Wed, May 16, 2001, Shane Wegner [EMAIL PROTECTED] wrote: On Wed, May 16, 2001 at 12:56:55PM -0700, Johannes Erdfelt wrote: Could you try this patch? It applies on top of 2.2.20pre1 It also cleans up a couple of comments That fixes it alright. Excellent. Alan, could you apply the patch to 2.2.20pre2? JE - 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: 2.2.20pre1: Problems with SMP
On Mon, May 07, 2001, Shane Wegner <[EMAIL PROTECTED]> wrote: > On Mon, May 07, 2001 at 11:02:50AM -0700, Johannes Erdfelt wrote: > > On Mon, May 07, 2001, Shane Wegner <[EMAIL PROTECTED]> wrote: > > > > > > That does indeed correct the problem. 2.2.20pre1 now works > > > as expected. > > > > Hmm, that uses a VIA based chipset. I didn't know they did SMP yet. Does > > 2.4 work on this system? > > The last 2.4 kernel I tried was 2.4.3 I believe and it > worked fine more or less. I haven't tried any later 2.4 > kernels yet. That's fine. The I/O APIC code is different and I tried to make the 2.2 code work like the 2.4 code with minimal changes. However, the changes aren't trivial. I'll take a quick look and see if I can find any more significant differences. I wonder if I have a VIA board laying around here. JE - 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: 2.2.20pre1: Problems with SMP
On Mon, May 07, 2001 at 11:02:50AM -0700, Johannes Erdfelt wrote: > On Mon, May 07, 2001, Shane Wegner <[EMAIL PROTECTED]> wrote: > > > > That does indeed correct the problem. 2.2.20pre1 now works > > as expected. > > Hmm, that uses a VIA based chipset. I didn't know they did SMP yet. Does > 2.4 work on this system? The last 2.4 kernel I tried was 2.4.3 I believe and it worked fine more or less. I haven't tried any later 2.4 kernels yet. Shane -- Shane Wegner: [EMAIL PROTECTED] http://www.cm.nu/~shane/ PGP: 1024D/FFE3035D A0ED DAC4 77EC D674 5487 5B5C 4F89 9A4E FFE3 035D - 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: 2.2.20pre1: Problems with SMP
On Mon, May 07, 2001, Shane Wegner <[EMAIL PROTECTED]> wrote: > On Mon, May 07, 2001 at 11:36:49AM +0100, Alan Cox wrote: > > > Just booted up 2.2.20pre1 and am getting some funny > > > results. The system boots but is very slow. Every few > > > seconds I get: > > > Stuck on TLB IPI wait (CPU#0) > > > > > > Booting vanilla 2.2.19 works fine. The machine is an > > > Intel Pentium III 850MHZ on an Abit VP6 board. If any > > > further information is needed, let me know. > > > > Can you back out the change to io_apic.c and tell me if that fixes it. If so > > let Johannes Erdfelt and I know. > > That does indeed correct the problem. 2.2.20pre1 now works > as expected. Hmm, that uses a VIA based chipset. I didn't know they did SMP yet. Does 2.4 work on this system? JE - 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: 2.2.20pre1: Problems with SMP
On Mon, May 07, 2001 at 11:36:49AM +0100, Alan Cox wrote: > > Just booted up 2.2.20pre1 and am getting some funny > > results. The system boots but is very slow. Every few > > seconds I get: > > Stuck on TLB IPI wait (CPU#0) > > > > Booting vanilla 2.2.19 works fine. The machine is an > > Intel Pentium III 850MHZ on an Abit VP6 board. If any > > further information is needed, let me know. > > Can you back out the change to io_apic.c and tell me if that fixes it. If so > let Johannes Erdfelt and I know. That does indeed correct the problem. 2.2.20pre1 now works as expected. Shane -- Shane Wegner: [EMAIL PROTECTED] http://www.cm.nu/~shane/ PGP: 1024D/FFE3035D A0ED DAC4 77EC D674 5487 5B5C 4F89 9A4E FFE3 035D - 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: 2.2.20pre1: Problems with SMP
> Just booted up 2.2.20pre1 and am getting some funny > results. The system boots but is very slow. Every few > seconds I get: > Stuck on TLB IPI wait (CPU#0) > > Booting vanilla 2.2.19 works fine. The machine is an > Intel Pentium III 850MHZ on an Abit VP6 board. If any > further information is needed, let me know. Can you back out the change to io_apic.c and tell me if that fixes it. If so let Johannes Erdfelt and I know. - 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: 2.2.20pre1: Problems with SMP
Just booted up 2.2.20pre1 and am getting some funny results. The system boots but is very slow. Every few seconds I get: Stuck on TLB IPI wait (CPU#0) Booting vanilla 2.2.19 works fine. The machine is an Intel Pentium III 850MHZ on an Abit VP6 board. If any further information is needed, let me know. Can you back out the change to io_apic.c and tell me if that fixes it. If so let Johannes Erdfelt and I know. - 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: 2.2.20pre1: Problems with SMP
On Mon, May 07, 2001 at 11:36:49AM +0100, Alan Cox wrote: Just booted up 2.2.20pre1 and am getting some funny results. The system boots but is very slow. Every few seconds I get: Stuck on TLB IPI wait (CPU#0) Booting vanilla 2.2.19 works fine. The machine is an Intel Pentium III 850MHZ on an Abit VP6 board. If any further information is needed, let me know. Can you back out the change to io_apic.c and tell me if that fixes it. If so let Johannes Erdfelt and I know. That does indeed correct the problem. 2.2.20pre1 now works as expected. Shane -- Shane Wegner: [EMAIL PROTECTED] http://www.cm.nu/~shane/ PGP: 1024D/FFE3035D A0ED DAC4 77EC D674 5487 5B5C 4F89 9A4E FFE3 035D - 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: 2.2.20pre1: Problems with SMP
On Mon, May 07, 2001, Shane Wegner [EMAIL PROTECTED] wrote: On Mon, May 07, 2001 at 11:36:49AM +0100, Alan Cox wrote: Just booted up 2.2.20pre1 and am getting some funny results. The system boots but is very slow. Every few seconds I get: Stuck on TLB IPI wait (CPU#0) Booting vanilla 2.2.19 works fine. The machine is an Intel Pentium III 850MHZ on an Abit VP6 board. If any further information is needed, let me know. Can you back out the change to io_apic.c and tell me if that fixes it. If so let Johannes Erdfelt and I know. That does indeed correct the problem. 2.2.20pre1 now works as expected. Hmm, that uses a VIA based chipset. I didn't know they did SMP yet. Does 2.4 work on this system? JE - 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: 2.2.20pre1: Problems with SMP
On Mon, May 07, 2001 at 11:02:50AM -0700, Johannes Erdfelt wrote: On Mon, May 07, 2001, Shane Wegner [EMAIL PROTECTED] wrote: That does indeed correct the problem. 2.2.20pre1 now works as expected. Hmm, that uses a VIA based chipset. I didn't know they did SMP yet. Does 2.4 work on this system? The last 2.4 kernel I tried was 2.4.3 I believe and it worked fine more or less. I haven't tried any later 2.4 kernels yet. Shane -- Shane Wegner: [EMAIL PROTECTED] http://www.cm.nu/~shane/ PGP: 1024D/FFE3035D A0ED DAC4 77EC D674 5487 5B5C 4F89 9A4E FFE3 035D - 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: 2.2.20pre1: Problems with SMP
On Mon, May 07, 2001, Shane Wegner [EMAIL PROTECTED] wrote: On Mon, May 07, 2001 at 11:02:50AM -0700, Johannes Erdfelt wrote: On Mon, May 07, 2001, Shane Wegner [EMAIL PROTECTED] wrote: That does indeed correct the problem. 2.2.20pre1 now works as expected. Hmm, that uses a VIA based chipset. I didn't know they did SMP yet. Does 2.4 work on this system? The last 2.4 kernel I tried was 2.4.3 I believe and it worked fine more or less. I haven't tried any later 2.4 kernels yet. That's fine. The I/O APIC code is different and I tried to make the 2.2 code work like the 2.4 code with minimal changes. However, the changes aren't trivial. I'll take a quick look and see if I can find any more significant differences. I wonder if I have a VIA board laying around here. JE - 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/
2.2.20pre1: Problems with SMP
Hi, Just booted up 2.2.20pre1 and am getting some funny results. The system boots but is very slow. Every few seconds I get: Stuck on TLB IPI wait (CPU#0) Booting vanilla 2.2.19 works fine. The machine is an Intel Pentium III 850MHZ on an Abit VP6 board. If any further information is needed, let me know. Regards, Shane -- Shane Wegner: [EMAIL PROTECTED] http://www.cm.nu/~shane/ PGP: 1024D/FFE3035D A0ED DAC4 77EC D674 5487 5B5C 4F89 9A4E FFE3 035D - 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/
2.2.20pre1: Problems with SMP
Hi, Just booted up 2.2.20pre1 and am getting some funny results. The system boots but is very slow. Every few seconds I get: Stuck on TLB IPI wait (CPU#0) Booting vanilla 2.2.19 works fine. The machine is an Intel Pentium III 850MHZ on an Abit VP6 board. If any further information is needed, let me know. Regards, Shane -- Shane Wegner: [EMAIL PROTECTED] http://www.cm.nu/~shane/ PGP: 1024D/FFE3035D A0ED DAC4 77EC D674 5487 5B5C 4F89 9A4E FFE3 035D - 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/
