pthread_cond_timedwait crashing
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From:
Oceanblue <ns1... @gmail.com> Date: Tue, 13 Sep 2011 07:31:43 -0700 (PDT)
Local: Tues, Sep 13 2011 10:31 am
Subject: pthread_cond_timedwait crashing
Hi,
I have a question about timed wait.
I have this bit of code in the application I am porting:
pthread_mutex_lock(&m_mutex);
It is crashing at line 2.
The mysterious thing is that before it crashes it is called previously
Would anyone have any idea why this might be happening?
Thanks!
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From:
David Turner <di... @android.com> Date: Tue, 13 Sep 2011 16:53:59 +0200
Local: Tues, Sep 13 2011 10:53 am
Subject: Re: pthread_cond_timedwait crashing
On Tue, Sep 13, 2011 at 4:31 PM, Oceanblue <ns1
... @gmail.com> wrote:
> Hi,
> I have a question about timed wait.
> I have this bit of code in the application I am porting:
> pthread_mutex_lock(&m_mutex);
> It is crashing at line 2.
> The mysterious thing is that before it crashes it is called previously
> Would anyone have any idea why this might be happening?
> Thanks!
> -- http://groups.google.com/group/android-ndk?hl=en .
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From:
Oceanblue <ns1... @gmail.com> Date: Tue, 13 Sep 2011 08:25:37 -0700 (PDT)
Local: Tues, Sep 13 2011 11:25 am
Subject: Re: pthread_cond_timedwait crashing
Hi David,
Thanks for the answer.
&m_mutex and &m_condvar are defined earlier in the constructor of the
pthread_mutex_init (&m_mutex, NULL);
&abstimeout is defined as following, (timespec comes from <time.h>)
struct timespec abstimeout;
In the logcat in Android I just see the following messages...
09-13 10:07:30.832: INFO/DEBUG(15721): *** *** *** *** *** *** *** ***
On Sep 13, 9:53 am, David Turner <di... @android.com> wrote:
> Do you have a stack trace with more details? How are m_condvar, m_mutex and
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From:
David Turner <di... @android.com> Date: Tue, 13 Sep 2011 18:22:56 +0200
Local: Tues, Sep 13 2011 12:22 pm
Subject: Re: pthread_cond_timedwait crashing
It would be interesting to see if you could disassemble the code at
My guess is that the machine code is trying to jump to the address in
This may come from really bad memory corruption though (corrupted stack or
Sorry, I can't help you more than that right now.
On Tue, Sep 13, 2011 at 5:25 PM, Oceanblue <ns1
... @gmail.com> wrote:
> Hi David,
> Thanks for the answer.
> &m_mutex and &m_condvar are defined earlier in the constructor of the
> pthread_mutex_init (&m_mutex, NULL);
> &abstimeout is defined as following, (timespec comes from <time.h>)
> struct timespec abstimeout;
> In the logcat in Android I just see the following messages...
> 09-13 10:07:30.832: INFO/DEBUG(15721): *** *** *** *** *** *** *** ***
> On Sep 13, 9:53 am, David Turner <di... @android.com> wrote:
> -- http://groups.google.com/group/android-ndk?hl=en .
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From:
fadden <fad... @android.com> Date: Wed, 14 Sep 2011 12:42:14 -0700 (PDT)
Local: Wed, Sep 14 2011 3:42 pm
Subject: Re: pthread_cond_timedwait crashing
On Sep 13, 9:22 am, David Turner <di
... @android.com> wrote:
> This is puzzling, a SIGBUS with fault address 00000000 :-)
That usually indicates an unaligned access, e.g. a 64-bit integer with
16-bit alignment.
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From:
Oceanblue <ns1... @gmail.com> Date: Mon, 19 Sep 2011 14:11:15 -0700 (PDT)
Local: Mon, Sep 19 2011 5:11 pm
Subject: Re: pthread_cond_timedwait crashing
It might very well be the case since we keep running into unaligned
memory access in this code. The parameters of this function are all
well-aligned, but perhaps the memory corruption is happening earlier.
On Sep 14, 2:42 pm, fadden <fad... @android.com> wrote:
> That usually indicates an unaligned access, e.g. a 64-bit integer with
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From:
Tiziano Sardone <tsard... @gmail.com> Date: Tue, 20 Sep 2011 19:06:47 +0200
Local: Tues, Sep 20 2011 1:06 pm
Subject: Re: pthread_cond_timedwait crashing
Regards ... @gmail.com> ha scritto:
> Hi David,
> Thanks for the answer.
> &m_mutex and &m_condvar are defined earlier in the constructor of the
> pthread_mutex_init (&m_mutex, NULL);
> &abstimeout is defined as following, (timespec comes from <time.h>)
> struct timespec abstimeout;
> In the logcat in Android I just see the following messages...
> 09-13 10:07:30.832: INFO/DEBUG(15721): *** *** *** *** *** *** *** ***
> On Sep 13, 9:53 am, David Turner <di... @android.com> wrote:
> --
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From:
Oceanblue <ns1... @gmail.com> Date: Wed, 21 Sep 2011 11:51:54 -0700 (PDT)
Local: Wed, Sep 21 2011 2:51 pm
Subject: Re: pthread_cond_timedwait crashing
Thanks for the suggestion TiZiano, re-init of the mutex did not
resolve the issue.
Now here's the very strange thing. When I compiled the same code on
I again recompiled it on my main computer (NDK-r6b), and sure enough,
Is there any difference in the way mutex & conditional vars are
On Sep 20, 12:06 pm, Tiziano Sardone <tsard... @gmail.com> wrote:
> Hi,
> you can also try to re-init the mutex when the timedwait return succesfully.
> Regards
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From:
Oceanblue <ns1... @gmail.com> Date: Wed, 21 Sep 2011 13:23:39 -0700 (PDT)
Local: Wed, Sep 21 2011 4:23 pm
Subject: Re: pthread_cond_timedwait crashing
I resolved the issue. I updated all my tools - SDK, ADT, NDK - &
deleted & rebuilt the libraries & cleaned the eclipse project.
Something must have been messed up in the system.
Thanks everyone for the help.
On Sep 21, 1:51 pm, Oceanblue <ns1... @gmail.com> wrote:
> Thanks for the suggestion TiZiano, re-init of the mutex did not
> resolve the issue.
> Now here's the very strange thing. When I compiled the same code on
> I again recompiled it on my main computer (NDK-r6b), and sure enough,
> Is there any difference in the way mutex & conditional vars are
> On Sep 20, 12:06 pm, Tiziano Sardone <tsard... @gmail.com> wrote:
> > Hi,
> > Regards
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