* Oops during Init IRQ
@ 2012-06-18 13:53 leroy christophe
2012-06-18 17:53 ` Thomas Gleixner
0 siblings, 1 reply; 6+ messages in thread
From: leroy christophe @ 2012-06-18 13:53 UTC (permalink / raw)
To: linux-rt-users
Hello,
I'm trying to use the rt10 patch on a 3.4.2 kernel on a powerpc (MPC8xx)
system, and I'm having the following Oops during Irq initialisation.
This happens with CONFIG_PREEMPT_RT_FULL.
It doesn't happen with CONFIG_PREEMPT__LL
May someone help ?
[ 0.000000] Memory: 125676k/131072k available (3680k kernel code,
5396k reserved, 160k data, 193k bss, 140k init)
[ 0.000000] Kernel virtual memory layout:
[ 0.000000] * 0xfffdf000..0xfffff000 : fixmap
[ 0.000000] * 0xfde00000..0xfe000000 : consistent mem
[ 0.000000] * 0xfddf6000..0xfde00000 : early ioremap
[ 0.000000] * 0xc9000000..0xfddf6000 : vmalloc & ioremap
[ 0.000000] NR_IRQS:512 nr_irqs:512 16
[ 0.000000] Unable to handle kernel paging request for data at
address 0x00000418
[ 0.000000] Faulting instruction address: 0xc0163398
[ 0.000000] Oops: Kernel access of bad area, sig: 11 [#1]
[ 0.000000] PREEMPT CMPC885
[ 0.000000] Modules linked in:
[ 0.000000] NIP: c0163398 LR: c02ae398 CTR: 00000000
[ 0.000000] REGS: c03b3d60 TRAP: 0300 Not tainted
(3.4.2-rt10-s3k-3.7.4+-svn2547)
[ 0.000000] MSR: 00001032 <ME,IR,DR,RI> CR: 22444482 XER: 20005208
[ 0.000000] DAR: 00000418, DSISR: c0000000
[ 0.000000] TASK = c039a3e8[0] 'swapper' THREAD: c03b2000
[ 0.000000] GPR00: c02ae398 c03b3e10 c039a3e8 00000414 0000000f
00000000 c032f744 00000011
[ 0.000000] GPR08: c039a3e8 c03b2000 00000000 00000001 22444482
10029aec 00000000 07ff9550
[ 0.000000] GPR16: 00000000 07bb6de8 00000000 07ff825c 07ff825c
07ff825c 00000000 00000000
[ 0.000000] GPR24: 07ffb3a0 ffffffed 00000001 00000000 c039d6d4
0000000f 00000414 00000414
[ 0.000000] NIP [c0163398] do_raw_spin_lock+0x34/0x174
[ 0.000000] LR [c02ae398] _raw_spin_lock_irqsave+0x30/0x48
[ 0.000000] Call Trace:
[ 0.000000] [c03b3e10] [07fe7f50] 0x7fe7f50 (unreliable)
[ 0.000000] [c03b3e40] [c02ae398] _raw_spin_lock_irqsave+0x30/0x48
[ 0.000000] [c03b3e50] [c0043050] try_to_wake_up+0x38/0x1a0
[ 0.000000] [c03b3e70] [c0036c58] kthread_create_on_node+0x9c/0x124
[ 0.000000] [c03b3f00] [c005c780] __setup_irq+0x2ac/0x464
[ 0.000000] [c03b3f30] [c005cdec] setup_irq+0x64/0xb8
[ 0.000000] [c03b3f50] [c0013e80] cpm_pic_init+0x14c/0x1f0
[ 0.000000] [c03b3f90] [c03798f0] mpc8xx_pics_init+0x2c/0x58
[ 0.000000] [c03b3fa0] [c0379cd4] cmpc885_pics_init+0x14/0xcc
[ 0.000000] [c03b3fb0] [c0377478] init_IRQ+0x24/0x34
[ 0.000000] [c03b3fc0] [c0375830] start_kernel+0x1cc/0x300
[ 0.000000] [c03b3ff0] [c0002218] start_here+0x38/0x9c
[ 0.000000] Instruction dump:
[ 0.000000] 9421ffd0 7d800026 93e1002c 90010034 93210014 93410018
9361001c 93810020
[ 0.000000] 93a10024 93c10028 91810010 7c7f1b78 <81230004> 6d20dead
2f804ead 409e0074
Best regards
C. Leroy
^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: Oops during Init IRQ
2012-06-18 13:53 Oops during Init IRQ leroy christophe
@ 2012-06-18 17:53 ` Thomas Gleixner
2012-06-19 8:48 ` leroy christophe
0 siblings, 1 reply; 6+ messages in thread
From: Thomas Gleixner @ 2012-06-18 17:53 UTC (permalink / raw)
To: leroy christophe; +Cc: linux-rt-users
On Mon, 18 Jun 2012, leroy christophe wrote:
> Hello,
>
> I'm trying to use the rt10 patch on a 3.4.2 kernel on a powerpc (MPC8xx)
> system, and I'm having the following Oops during Irq initialisation. This
> happens with CONFIG_PREEMPT_RT_FULL.
> It doesn't happen with CONFIG_PREEMPT__LL
>
> May someone help ?
Does the following uncompiled and untested patch fix it for you ?
Thanks,
tglx
Index: linux-3.4/arch/powerpc/platforms/8xx/m8xx_setup.c
===================================================================
--- linux-3.4.orig/arch/powerpc/platforms/8xx/m8xx_setup.c
+++ linux-3.4/arch/powerpc/platforms/8xx/m8xx_setup.c
@@ -43,6 +43,7 @@ static irqreturn_t timebase_interrupt(in
static struct irqaction tbint_irqaction = {
.handler = timebase_interrupt,
+ .flags = IRQF_NO_THREAD,
.name = "tbint",
};
Index: linux-3.4/arch/powerpc/sysdev/cpm1.c
===================================================================
--- linux-3.4.orig/arch/powerpc/sysdev/cpm1.c
+++ linux-3.4/arch/powerpc/sysdev/cpm1.c
@@ -120,6 +120,7 @@ static irqreturn_t cpm_error_interrupt(i
static struct irqaction cpm_error_irqaction = {
.handler = cpm_error_interrupt,
+ .flags = IRQF_NO_THREAD,
.name = "error",
};
^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: Oops during Init IRQ
2012-06-18 17:53 ` Thomas Gleixner
@ 2012-06-19 8:48 ` leroy christophe
2012-06-20 6:40 ` Thomas Gleixner
0 siblings, 1 reply; 6+ messages in thread
From: leroy christophe @ 2012-06-19 8:48 UTC (permalink / raw)
To: Thomas Gleixner; +Cc: linux-rt-users
Hello,
Yes it does fix the issue.
Thanks a lot.
Shall I do anything to ask for this change to be included either in the
kernel or in the rt patch ?
Best regards
Christophe
Le 18/06/2012 19:53, Thomas Gleixner a écrit :
> On Mon, 18 Jun 2012, leroy christophe wrote:
>
>> Hello,
>>
>> I'm trying to use the rt10 patch on a 3.4.2 kernel on a powerpc (MPC8xx)
>> system, and I'm having the following Oops during Irq initialisation. This
>> happens with CONFIG_PREEMPT_RT_FULL.
>> It doesn't happen with CONFIG_PREEMPT__LL
>>
>> May someone help ?
> Does the following uncompiled and untested patch fix it for you ?
>
> Thanks,
>
> tglx
>
>
> Index: linux-3.4/arch/powerpc/platforms/8xx/m8xx_setup.c
> ===================================================================
> --- linux-3.4.orig/arch/powerpc/platforms/8xx/m8xx_setup.c
> +++ linux-3.4/arch/powerpc/platforms/8xx/m8xx_setup.c
> @@ -43,6 +43,7 @@ static irqreturn_t timebase_interrupt(in
>
> static struct irqaction tbint_irqaction = {
> .handler = timebase_interrupt,
> + .flags = IRQF_NO_THREAD,
> .name = "tbint",
> };
>
> Index: linux-3.4/arch/powerpc/sysdev/cpm1.c
> ===================================================================
> --- linux-3.4.orig/arch/powerpc/sysdev/cpm1.c
> +++ linux-3.4/arch/powerpc/sysdev/cpm1.c
> @@ -120,6 +120,7 @@ static irqreturn_t cpm_error_interrupt(i
>
> static struct irqaction cpm_error_irqaction = {
> .handler = cpm_error_interrupt,
> + .flags = IRQF_NO_THREAD,
> .name = "error",
> };
>
>
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^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: Oops during Init IRQ
2012-06-19 8:48 ` leroy christophe
@ 2012-06-20 6:40 ` Thomas Gleixner
2012-06-20 11:33 ` Steven Rostedt
2012-06-22 11:30 ` Steven Rostedt
0 siblings, 2 replies; 6+ messages in thread
From: Thomas Gleixner @ 2012-06-20 6:40 UTC (permalink / raw)
To: leroy christophe; +Cc: linux-rt-users, Steven Rostedt
On Tue, 19 Jun 2012, leroy christophe wrote:
> Hello,
>
> Yes it does fix the issue.
> Thanks a lot.
>
> Shall I do anything to ask for this change to be included either in the kernel
> or in the rt patch ?
We'll take care. Thanks.
Steven, can you please pick that up for stable-rt ? It's in my queue,
but I won't be able to release before the weekend.
Thanks,
tglx
> >
> >
> > Index: linux-3.4/arch/powerpc/platforms/8xx/m8xx_setup.c
> > ===================================================================
> > --- linux-3.4.orig/arch/powerpc/platforms/8xx/m8xx_setup.c
> > +++ linux-3.4/arch/powerpc/platforms/8xx/m8xx_setup.c
> > @@ -43,6 +43,7 @@ static irqreturn_t timebase_interrupt(in
> > static struct irqaction tbint_irqaction = {
> > .handler = timebase_interrupt,
> > + .flags = IRQF_NO_THREAD,
> > .name = "tbint",
> > };
> > Index: linux-3.4/arch/powerpc/sysdev/cpm1.c
> > ===================================================================
> > --- linux-3.4.orig/arch/powerpc/sysdev/cpm1.c
> > +++ linux-3.4/arch/powerpc/sysdev/cpm1.c
> > @@ -120,6 +120,7 @@ static irqreturn_t cpm_error_interrupt(i
> > static struct irqaction cpm_error_irqaction = {
> > .handler = cpm_error_interrupt,
> > + .flags = IRQF_NO_THREAD,
> > .name = "error",
> > };
> >
>
>
> --
> To unsubscribe from this list: send the line "unsubscribe linux-rt-users" in
> the body of a message to majordomo@vger.kernel.org
> More majordomo info at http://vger.kernel.org/majordomo-info.html
>
^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: Oops during Init IRQ
2012-06-20 6:40 ` Thomas Gleixner
@ 2012-06-20 11:33 ` Steven Rostedt
2012-06-22 11:30 ` Steven Rostedt
1 sibling, 0 replies; 6+ messages in thread
From: Steven Rostedt @ 2012-06-20 11:33 UTC (permalink / raw)
To: Thomas Gleixner; +Cc: leroy christophe, linux-rt-users
On Wed, 2012-06-20 at 08:40 +0200, Thomas Gleixner wrote:
> Steven, can you please pick that up for stable-rt ? It's in my queue,
> but I won't be able to release before the weekend.
I'll pull it in first thing tomorrow. I'm taking the day off today.
-- Steve
^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: Oops during Init IRQ
2012-06-20 6:40 ` Thomas Gleixner
2012-06-20 11:33 ` Steven Rostedt
@ 2012-06-22 11:30 ` Steven Rostedt
1 sibling, 0 replies; 6+ messages in thread
From: Steven Rostedt @ 2012-06-22 11:30 UTC (permalink / raw)
To: Thomas Gleixner; +Cc: leroy christophe, linux-rt-users
On Wed, 2012-06-20 at 08:40 +0200, Thomas Gleixner wrote:
> On Tue, 19 Jun 2012, leroy christophe wrote:
> > Hello,
> >
> > Yes it does fix the issue.
> > Thanks a lot.
> >
> > Shall I do anything to ask for this change to be included either in the kernel
> > or in the rt patch ?
>
> We'll take care. Thanks.
>
> Steven, can you please pick that up for stable-rt ? It's in my queue,
> but I won't be able to release before the weekend.
>
Thomas, can you reply with your SOB tag please.
I'll also add a reported by and tested by from Leroy.
Thanks,
-- Steve
> > >
> > >
> > > Index: linux-3.4/arch/powerpc/platforms/8xx/m8xx_setup.c
> > > ===================================================================
> > > --- linux-3.4.orig/arch/powerpc/platforms/8xx/m8xx_setup.c
> > > +++ linux-3.4/arch/powerpc/platforms/8xx/m8xx_setup.c
> > > @@ -43,6 +43,7 @@ static irqreturn_t timebase_interrupt(in
> > > static struct irqaction tbint_irqaction = {
> > > .handler = timebase_interrupt,
> > > + .flags = IRQF_NO_THREAD,
> > > .name = "tbint",
> > > };
> > > Index: linux-3.4/arch/powerpc/sysdev/cpm1.c
> > > ===================================================================
> > > --- linux-3.4.orig/arch/powerpc/sysdev/cpm1.c
> > > +++ linux-3.4/arch/powerpc/sysdev/cpm1.c
> > > @@ -120,6 +120,7 @@ static irqreturn_t cpm_error_interrupt(i
> > > static struct irqaction cpm_error_irqaction = {
> > > .handler = cpm_error_interrupt,
> > > + .flags = IRQF_NO_THREAD,
> > > .name = "error",
> > > };
> > >
> >
> >
> > --
> > To unsubscribe from this list: send the line "unsubscribe linux-rt-users" in
> > the body of a message to majordomo@vger.kernel.org
> > More majordomo info at http://vger.kernel.org/majordomo-info.html
> >
> --
> To unsubscribe from this list: send the line "unsubscribe linux-rt-users" in
> the body of a message to majordomo@vger.kernel.org
> More majordomo info at http://vger.kernel.org/majordomo-info.html
^ permalink raw reply [flat|nested] 6+ messages in thread
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2012-06-18 13:53 Oops during Init IRQ leroy christophe
2012-06-18 17:53 ` Thomas Gleixner
2012-06-19 8:48 ` leroy christophe
2012-06-20 6:40 ` Thomas Gleixner
2012-06-20 11:33 ` Steven Rostedt
2012-06-22 11:30 ` Steven Rostedt
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