From: "Aneesh Kumar K.V"
stack_grow_into/14082 is trying to acquire lock:
(&mm->mmap_sem){++}, at: [] .might_fault+0x78/0xe0
but task is already holding lock:
(&mm->mmap_sem){++}, at: [] .do_page_fault+0x24c/0x910
other info that might help us debug this:
Possible unsafe lockin
Use pci_is_pcie() to simplify code.
Acked-by: Kumar Gala
Reviewed-by: Gavin Shan
Signed-off-by: Yijing Wang
Cc: Gavin Shan
Cc: Benjamin Herrenschmidt
Cc: Paul Mackerras
Cc: linuxppc-dev@lists.ozlabs.org
Cc: linux-ker...@vger.kernel.org
---
arch/powerpc/kernel/eeh.c |3 +--
arch/powe
On Thu, Sep 05, 2013 at 12:47:02PM +0530, Aneesh Kumar K.V wrote:
> @@ -280,6 +280,13 @@ int __kprobes do_page_fault(struct pt_regs *regs,
> unsigned long address,
>
> perf_sw_event(PERF_COUNT_SW_PAGE_FAULTS, 1, regs, address);
>
> + /*
> + * We want to do this outside mmap_sem
Paul Mackerras writes:
> On Thu, Sep 05, 2013 at 12:47:02PM +0530, Aneesh Kumar K.V wrote:
>
>> @@ -280,6 +280,13 @@ int __kprobes do_page_fault(struct pt_regs *regs,
>> unsigned long address,
>>
>> perf_sw_event(PERF_COUNT_SW_PAGE_FAULTS, 1, regs, address);
>>
>> +/*
>> + * We
From: "Aneesh Kumar K.V"
stack_grow_into/14082 is trying to acquire lock:
(&mm->mmap_sem){++}, at: [] .might_fault+0x78/0xe0
but task is already holding lock:
(&mm->mmap_sem){++}, at: [] .do_page_fault+0x24c/0x910
other info that might help us debug this:
Possible unsafe lockin
On Thu, 2013-09-05 at 17:18 +0530, Aneesh Kumar K.V wrote:
> Paul Mackerras writes:
>
> > On Thu, Sep 05, 2013 at 12:47:02PM +0530, Aneesh Kumar K.V wrote:
> >
> >> @@ -280,6 +280,13 @@ int __kprobes do_page_fault(struct pt_regs *regs,
> >> unsigned long address,
> >>
> >>perf_sw_event(PER
Benjamin Herrenschmidt writes:
> On Thu, 2013-09-05 at 17:18 +0530, Aneesh Kumar K.V wrote:
>> Paul Mackerras writes:
>>
>> > On Thu, Sep 05, 2013 at 12:47:02PM +0530, Aneesh Kumar K.V wrote:
>> >
>> >> @@ -280,6 +280,13 @@ int __kprobes do_page_fault(struct pt_regs *regs,
>> >> unsigned long
On Wed, Sep 04, 2013 at 02:01:28AM +1000, Alexey Kardashevskiy wrote:
> On 09/03/2013 08:53 PM, Gleb Natapov wrote:
> > On Mon, Sep 02, 2013 at 01:14:29PM +1000, Alexey Kardashevskiy wrote:
> >> On 09/01/2013 10:06 PM, Gleb Natapov wrote:
> >>> On Wed, Aug 28, 2013 at 06:50:41PM +1000, Alexey Karda
On Apr 2, 2013, at 9:03 PM, Jia Hongtao wrote:
> The MPIC version 2.0 has a MSI errata (errata PIC1 of mpc8544), It causes
> that neither MSI nor MSI-X can work fine. This is a workaround to allow
> MSI-X to function properly.
>
> Signed-off-by: Liu Shuo
> Signed-off-by: Li Yang
> Signed-off-b
On Wed, 2013-09-04 at 23:00 -0500, Jia Hongtao-B38951 wrote:
> > -Original Message-
> > From: Jia Hongtao-B38951
> > Sent: Monday, July 01, 2013 5:36 PM
> > To: Wood Scott-B07421
> > Cc: linuxppc-dev@lists.ozlabs.org; ga...@kernel.crashing.org
> > Subject: RE: [V2,2/2] powerpc/85xx: workaro
On Tue, 2013-09-03 at 22:30 -0500, Tang Yuantian-B29983 wrote:
> Hi,
>
> These eeproms are never used by kernel. So no need to add them.
The device tree describes the hardware, not what Linux does with it.
-Scott
___
Linuxppc-dev mailing list
Linuxp
On Sep 4, 2013, at 9:41 PM, Jia Hongtao wrote:
> In both B4 and T4240QDS platform PCA9547 I2C bus multiplexer is used.
> The sub-nodes are also reorganized according to right I2C topology.
>
> Signed-off-by: Jia Hongtao
> ---
> V2 change log:
> Reorganized the sub-nodes under I2C multiplexer to
On Tue, 2013-08-27 at 16:41 +0800, Dongsheng Wang wrote:
> From: Wang Dongsheng
>
> Using hardware features make core automatically enter PW20 state.
> Set a TB count to hardware, the effective count begins when PW10
> is entered. When the effective period has expired, the core will
> proceed fro
Hi,
Idle routines on pseries were rearranged so that cpuidle can do an
optimized idle state selection. However, until cpuidle takes over
during boot, the idle loop spins for a short while. This actually
affected bootup time since spinning idle sibling threads slows down
master cpu that executes
On Thu, 2013-09-05 at 13:34 -0500, Kumar Gala wrote:
> On Apr 2, 2013, at 9:03 PM, Jia Hongtao wrote:
> > + msi->feature |= MSI_HW_ERRATA_ENDIAN;
> > + }
> > +
> > /*
> > * Remember the phandle, so that we can match with any PCI nodes
> > * that have an "fsl,msi" p
On 09/06/2013 04:10 AM, Gleb Natapov wrote:
> On Wed, Sep 04, 2013 at 02:01:28AM +1000, Alexey Kardashevskiy wrote:
>> On 09/03/2013 08:53 PM, Gleb Natapov wrote:
>>> On Mon, Sep 02, 2013 at 01:14:29PM +1000, Alexey Kardashevskiy wrote:
On 09/01/2013 10:06 PM, Gleb Natapov wrote:
> On Wed,
Naturally, EEH has been supported for PHB3, but we had some mask bits
to disable it because the firmware isn't ready. The series of patch
instends to remove those "mask bits" and enable EEH for PHB3. Besides,
the output messages from EEH has been reordered to reflect the correct
steps during EEH re
The patch prints the error number while failing to retrieve error
log from firmware. It's helpful for debugging.
Signed-off-by: Gavin Shan
---
arch/powerpc/platforms/powernv/eeh-ioda.c |4 ++--
1 files changed, 2 insertions(+), 2 deletions(-)
diff --git a/arch/powerpc/platforms/powernv/eeh-
We already had some output messages from EEH core. Occasionally,
we can see the output messages from EEH core before the stack
dump. That's not what we expected. The patch fixes that and shows
the stack dump prior to output messages from EEH core.
Signed-off-by: Gavin Shan
---
arch/powerpc/kerne
Each PHB instance (struct pnv_phb) has its corresponding log blob,
which is used to hold the retrieved error log from firmware. The
current size of that (4096) isn't enough for PHB3 case and the patch
makes that double to 8192.
Signed-off-by: Gavin Shan
---
arch/powerpc/platforms/powernv/pci.h |
The EEH isn't enabled for PHB3 and the patch intends to enable it.
Signed-off-by: Gavin Shan
---
arch/powerpc/platforms/powernv/eeh-ioda.c| 26 +++---
arch/powerpc/platforms/powernv/eeh-powernv.c |5 +
2 files changed, 12 insertions(+), 19 deletions(-)
diff --g
For now, we only support outbound error injection. Actually, the
hardware supports injecting inbound errors as well. The patch enables
to inject inbound errors.
Signed-off-by: Gavin Shan
---
arch/powerpc/platforms/powernv/eeh-ioda.c | 59
1 files changed, 50 insert
The patch adds function ioda_eeh_phb3_phb_diag() to dump PHB3
PHB diag-data. That's called while detecting informative errors
or frozen PE on the specific PHB.
Signed-off-by: Gavin Shan
---
arch/powerpc/include/asm/opal.h | 65 ++
arch/powerpc/platforms/powern
Hi Linus !
Here's the powerpc batch for this merge window. Some of the highlights are:
* A bunch of endian fixes ! We don't have full LE support yet in that
release but this contains a lot of fixes all over arch/powerpc to use the
proper accessors, call the firmware with the right endian mode, e
> -Original Message-
> From: Wood Scott-B07421
> Sent: 2013年9月6日 星期五 2:41
> To: Tang Yuantian-B29983
> Cc: Yang,Wei; Jia Hongtao-B38951; Wood Scott-B07421; linuxppc-
> d...@lists.ozlabs.org
> Subject: Re: [PATCH] powerpc: Add I2C bus multiplexer node for B4 and
> T4240QDS
>
> On Tue, 2013
> -Original Message-
> From: Wood Scott-B07421
> Sent: Friday, September 06, 2013 1:57 AM
> To: Jia Hongtao-B38951
> Cc: Wood Scott-B07421; linuxppc-dev@lists.ozlabs.org;
> ga...@kernel.crashing.org
> Subject: Re: [V2,2/2] powerpc/85xx: workaround for chips with MSI
> hardware errata
>
>
> -Original Message-
> From: Kumar Gala [mailto:ga...@kernel.crashing.org]
> Sent: Friday, September 06, 2013 2:41 AM
> To: Jia Hongtao-B38951
> Cc: linuxppc-dev@lists.ozlabs.org; Wood Scott-B07421;
> wei.y...@windriver.com
> Subject: Re: [PATCH V2] powerpc: Add I2C bus multiplexer node for
On Fri, Sep 06, 2013 at 09:38:21AM +1000, Alexey Kardashevskiy wrote:
> On 09/06/2013 04:10 AM, Gleb Natapov wrote:
> > On Wed, Sep 04, 2013 at 02:01:28AM +1000, Alexey Kardashevskiy wrote:
> >> On 09/03/2013 08:53 PM, Gleb Natapov wrote:
> >>> On Mon, Sep 02, 2013 at 01:14:29PM +1000, Alexey Karda
On 09/06/2013 04:01 PM, Gleb Natapov wrote:
> On Fri, Sep 06, 2013 at 09:38:21AM +1000, Alexey Kardashevskiy wrote:
>> On 09/06/2013 04:10 AM, Gleb Natapov wrote:
>>> On Wed, Sep 04, 2013 at 02:01:28AM +1000, Alexey Kardashevskiy wrote:
On 09/03/2013 08:53 PM, Gleb Natapov wrote:
> On Mon,
On Thu, Sep 05, 2013 at 02:05:09PM +1000, Benjamin Herrenschmidt wrote:
> On Tue, 2013-09-03 at 13:53 +0300, Gleb Natapov wrote:
> > > Or supporting all IOMMU links (and leaving emulated stuff as is) in on
> > > "device" is the last thing I have to do and then you'll ack the patch?
> > >
> > I am
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