Hello,
I need advises with a problem of kdump kernel in SMP machine. The
problem I see is when panic happens, if the panic occurs on core 0,
kdump kernel would receive interrups, specifically the sata disk
driver works fine, but if panic happens on any other core, kdump
kernel seems to not get
Hello,
I need advises with a problem of kdump kernel in SMP machine. The
problem I see is when panic happens, if the panic occurs on core 0,
kdump kernel would receive interrups, specifically the sata disk
driver works fine, but if panic happens on any other core, kdump
kernel seems to not get
On 3/10/07, Sergey Vlasov <[EMAIL PROTECTED]> wrote:
On Fri, 9 Mar 2007 16:10:29 -0800 Luong Ngo wrote:
> Thanks Parav, adding singal_allow(SIGALRM) wakeup the blocking
> interruptible_sleep_on and checking the signal_pending would return
> true now.
This means that there is als
On 3/10/07, Sergey Vlasov [EMAIL PROTECTED] wrote:
On Fri, 9 Mar 2007 16:10:29 -0800 Luong Ngo wrote:
Thanks Parav, adding singal_allow(SIGALRM) wakeup the blocking
interruptible_sleep_on and checking the signal_pending would return
true now.
This means that there is also a bug in your
On 3/8/07, Parav K Pandit <[EMAIL PROTECTED]> wrote:
-Original Message-
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Luong Ngo
Sent: Friday, March 09, 2007 8:54 AM
To: Robert Hancock
Cc: linux-kernel; [EMAIL PROTECTED]
Subject: Re: Sleeping thread not receive
On 3/9/07, Sergey Vlasov <[EMAIL PROTECTED]> wrote:
On Thu, 8 Mar 2007 14:52:07 -0800 Luong Ngo wrote:
[...]
> static irqreturn board_isr(int irq, void *dev_id, struct pt_regs* regs)
> {
> spin_lock(>lock);
>if (dev->irqMask & (1 << irqBit)) {
>
On 3/9/07, Sergey Vlasov [EMAIL PROTECTED] wrote:
On Thu, 8 Mar 2007 14:52:07 -0800 Luong Ngo wrote:
[...]
static irqreturn board_isr(int irq, void *dev_id, struct pt_regs* regs)
{
spin_lock(dev-lock);
if (dev-irqMask (1 irqBit)) {
// Set the interrupt event mask
dev
On 3/8/07, Parav K Pandit [EMAIL PROTECTED] wrote:
-Original Message-
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Luong Ngo
Sent: Friday, March 09, 2007 8:54 AM
To: Robert Hancock
Cc: linux-kernel; [EMAIL PROTECTED]
Subject: Re: Sleeping thread not receive signal until
On 3/8/07, Robert Hancock <[EMAIL PROTECTED]> wrote:
Luong Ngo wrote:
> Hi Thomas and Dick,
> I appreciate all the responses. They are very good information to me.
> Actually, it wasn't me working on the driver but it's been there long
> time. I thought I just need to add the
On 3/8/07, Thomas Gleixner <[EMAIL PROTECTED]> wrote:
On Thu, 2007-03-08 at 08:01 -0500, linux-os (Dick Johnson) wrote:
> > Anything kernel configuration I need to be aware of to enable
> > preemption in kernel?
> >
> >
> > Thank you,
> > LNgo
> >
>
> First, in the ioctl, if you need spin-locks,
On 3/8/07, Thomas Gleixner [EMAIL PROTECTED] wrote:
On Thu, 2007-03-08 at 08:01 -0500, linux-os (Dick Johnson) wrote:
Anything kernel configuration I need to be aware of to enable
preemption in kernel?
Thank you,
LNgo
First, in the ioctl, if you need spin-locks, you need to use
On 3/8/07, Robert Hancock [EMAIL PROTECTED] wrote:
Luong Ngo wrote:
Hi Thomas and Dick,
I appreciate all the responses. They are very good information to me.
Actually, it wasn't me working on the driver but it's been there long
time. I thought I just need to add the signal and signal
On 3/7/07, Lee Revell <[EMAIL PROTECTED]> wrote:
On 3/7/07, linux-os (Dick Johnson) <[EMAIL PROTECTED]> wrote:
> Interruptible_sleep_on is interruptible, but for your task to
> actually be awakened and your alarm handler to get some CPU,
> it needs to be scheduled. If the BKL (big kernel lock)
On 3/7/07, linux-os (Dick Johnson) <[EMAIL PROTECTED]> wrote:
>
> On 3/7/07, linux-os (Dick Johnson) <[EMAIL PROTECTED]> wrote:
>>
>> On Wed, 7 Mar 2007, Luong Ngo wrote:
>>
>>> Hi all,
>>>
>>> I am having this problem. I have a
,
LNgo
On 3/7/07, linux-os (Dick Johnson) <[EMAIL PROTECTED]> wrote:
On Wed, 7 Mar 2007, Luong Ngo wrote:
> Hi all,
>
> I am having this problem. I have a process with 2 threads created. One
> of the thread will keep calling IOCTL to get information from the
> kerne
,
LNgo
On 3/7/07, linux-os (Dick Johnson) [EMAIL PROTECTED] wrote:
On Wed, 7 Mar 2007, Luong Ngo wrote:
Hi all,
I am having this problem. I have a process with 2 threads created. One
of the thread will keep calling IOCTL to get information from the
kernel and will be blocked
On 3/7/07, linux-os (Dick Johnson) [EMAIL PROTECTED] wrote:
On 3/7/07, linux-os (Dick Johnson) [EMAIL PROTECTED] wrote:
On Wed, 7 Mar 2007, Luong Ngo wrote:
Hi all,
I am having this problem. I have a process with 2 threads created. One
of the thread will keep calling IOCTL to get
On 3/7/07, Lee Revell [EMAIL PROTECTED] wrote:
On 3/7/07, linux-os (Dick Johnson) [EMAIL PROTECTED] wrote:
Interruptible_sleep_on is interruptible, but for your task to
actually be awakened and your alarm handler to get some CPU,
it needs to be scheduled. If the BKL (big kernel lock) is
Hi all,
I am having this problem. I have a process with 2 threads created. One
of the thread will keep calling IOCTL to get information from the
kernel and will be blocked if there is no new information. If there is
information retured, the thread will be checked to see if any error
happens and
Hi all,
I am having this problem. I have a process with 2 threads created. One
of the thread will keep calling IOCTL to get information from the
kernel and will be blocked if there is no new information. If there is
information retured, the thread will be checked to see if any error
happens and
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