Looks like Dr Watson won't help our specific problem:
"Dr. Watson cannot create a snapshot if the program does not respond
(hangs)."
From "How to Troubleshoot Program Faults with Dr. Watson":
http://support.microsoft.com/default.aspx?scid=kb;en-us;q275481
However, we do experience php.exe crashes
On Fri, Sep 10, 2004 at 09:28:04AM +0200, Derick Rethans wrote:
>
> Can you perhaps wrap up instructions al la "how to generate a backtrace"
> for unix with those tools? That would be much appreciated.
Uh, while I'd be glad to, I don't know how to.
Last night I bumpped into Sysinternal's DebugVi
We need to:
- provide a debug build with symbols (could be generated daily to
reduce load on Edin's snap box)
This would great! (I had already suggested that). I don't have the MS
compiler, just cygwin, and sometimes I get an error with the snap binnary
and then I can't reproduce it with the cygw
We need to:
- provide a debug build with symbols (could be generated daily to
reduce load on Edin's snap box)
- find out exactly how to get Dr. Watson (or whatever) to drop dumps
for applications
- otherwise suggest that they install a debugger. Installing dev tools
under win tends to destabilize t
On Thu, 9 Sep 2004, Daniel Convissor wrote:
> On Thu, Sep 09, 2004 at 07:10:51PM +0100, Wez Furlong wrote:
> > Hope that helps (and if you find out about the minidump thing,
> > please share the knowledge ;-)
>
> This may be of assistance...
Can you perhaps wrap up instructions al la "how to
The .pdb files contain the debugging info; they should be generated as
part of the debug build.
Dans tips on reading the minidump are handy, but don't tell you how to
get hold of one for an application crash--they cover only a kernel
crash (BSOD). You'll need to do some googling to try and find
excellent tips, thx dan and wez.
do i need to do add any special options to the debug build configuration
to generate the debug symbols? also, what is the release_tsdbg build
configuration? a release build w/ debug symbols?
i'll check out the minidump idea. that'd be ideal, as the client is
rem
On Thu, Sep 09, 2004 at 07:10:51PM +0100, Wez Furlong wrote:
> Hope that helps (and if you find out about the minidump thing,
> please share the knowledge ;-)
This may be of assistance...
Get the Windows Debugger:
http://www.microsoft.com/ddk/debugging/
Here's a tip sheet on the process:
I'd recommend the Microsoft "Debugging Tools for Windows" to be able
to do very similar things to gdb under windows; it's free, not as
bloated as VC++/VS.Net IDE debugger and comes in console and GUI
flavours.
Caveat emptor:
- you need to understand how to debug
- you want a debug build of php wit
At 01:05 PM 9/8/2004 +0200, Derick Rethans wrote:
On Wed, 8 Sep 2004, Joe Orton wrote:
> > Didn't Joe mean that it's wrong on Linux/x86_64 or am I
misinterpreting his
> > email?
>
> Yup I did mean that. Linux/x86_64 is an example of a platform where you
> cannot put non-PIC code into a shared obj
On Wed, 8 Sep 2004, Joe Orton wrote:
On Wed, Sep 08, 2004 at 01:05:37PM +0200, Derick Rethans wrote:
On Wed, 8 Sep 2004, Joe Orton wrote:
Didn't Joe mean that it's wrong on Linux/x86_64 or am I misinterpreting his
email?
Yup I did mean that. Linux/x86_64 is an example of a platform where you
canno
On Wed, Sep 08, 2004 at 01:05:37PM +0200, Derick Rethans wrote:
> On Wed, 8 Sep 2004, Joe Orton wrote:
>
> > > Didn't Joe mean that it's wrong on Linux/x86_64 or am I misinterpreting his
> > > email?
> >
> > Yup I did mean that. Linux/x86_64 is an example of a platform where you
> > cannot put no
On Wed, 8 Sep 2004, Joe Orton wrote:
> > Didn't Joe mean that it's wrong on Linux/x86_64 or am I misinterpreting his
> > email?
>
> Yup I did mean that. Linux/x86_64 is an example of a platform where you
> cannot put non-PIC code into a shared object. libtool does honour
> -prefer-non-pic on thi
On Tue, Sep 07, 2004 at 11:34:50AM -0700, Andi Gutmans wrote:
> At 10:04 AM 9/6/2004 -0700, Rasmus Lerdorf wrote:
> >On Mon, 6 Sep 2004, Joe Orton wrote:
> >
> >> On Sun, Sep 05, 2004 at 04:41:44PM -0700, Rasmus Lerdorf wrote:
> >> > On Sun, 5 Sep 2004, Andi Gutmans wrote:
> >> > > Yeah I know non-
Rasmus Lerdorf wrote:
On Tue, 7 Sep 2004, Russ Garrett wrote:
Anyhow, the whole backtrace is here, I'd be interested to see what you
think:
http://static.last.fm/phpbug/bt.txt
Are you sure this happens with Apache1 as well? I see you are running the
prefork mpm, but you are still linking against
A large telco client of ours is having problems that match Russ' problem
almost exactly... except on Win2k.
Does anyone have pointers to *windows* tools to achieve the kind of
debugging/tracing described below?
Rasmus Lerdorf wrote:
On Tue, 7 Sep 2004, Russ Garrett wrote:
I can watch them for h
At 10:04 AM 9/6/2004 -0700, Rasmus Lerdorf wrote:
On Mon, 6 Sep 2004, Joe Orton wrote:
> On Sun, Sep 05, 2004 at 04:41:44PM -0700, Rasmus Lerdorf wrote:
> > On Sun, 5 Sep 2004, Andi Gutmans wrote:
> > > Yeah I know non-pic doesn't work on all platforms but I gathered that
> > > -prefer-non-pic only
On Tue, 7 Sep 2004, Russ Garrett wrote:
> Anyhow, the whole backtrace is here, I'd be interested to see what you
> think:
>
> http://static.last.fm/phpbug/bt.txt
Are you sure this happens with Apache1 as well? I see you are running the
prefork mpm, but you are still linking against libpthread whi
Rasmus Lerdorf wrote:
On Tue, 7 Sep 2004, Russ Garrett wrote:
I can watch them for hours in the apache mod_status view, and they'll
show the same last request. They won't respond to a kill -15, I have to
kill -9 them. Strace reports they're doing absolutely nothing.
Could you use 'gcore' to drop a
On Tue, 7 Sep 2004, Russ Garrett wrote:
> I can watch them for hours in the apache mod_status view, and they'll
> show the same last request. They won't respond to a kill -15, I have to
> kill -9 them. Strace reports they're doing absolutely nothing.
Could you use 'gcore' to drop a core from one o
Zeev Suraski wrote:
Is there anything consistent about these failed checksums? Do they
occur in a specific file or a set of certain files?
This is interesting -- there *is* definitely a consistency, it always
happens in one of three files. One is 8k lines long (the main file from
the jpgraph su
At 22:12 06/09/2004, Russ Garrett wrote:
OK, the situation seems a lot more stable with Zend Accelerator instead of
mmcache, and we're regularly getting quite a few "checksum failed" errors
in the logs, which does tend to indicate that shared memory corruption was
(and still is) happening. But n
You are going to have to narrow this down further for us to have any
chance to help you. Put your stuff on a development server and hit your
various pages looking for that error or the request that causes your httpd
to grow to 200M (use Apache1, not Apache2 for this). Or if all else fails
replay
OK, the situation seems a lot more stable with Zend Accelerator instead
of mmcache, and we're regularly getting quite a few "checksum failed"
errors in the logs, which does tend to indicate that shared memory
corruption was (and still is) happening. But now I don't have to restart
the damn thin
On Mon, 6 Sep 2004, Joe Orton wrote:
> On Sun, Sep 05, 2004 at 04:41:44PM -0700, Rasmus Lerdorf wrote:
> > On Sun, 5 Sep 2004, Andi Gutmans wrote:
> > > Yeah I know non-pic doesn't work on all platforms but I gathered that
> > > -prefer-non-pic only uses PIC on platforms where non-PIC dso's aren't
On Sun, Sep 05, 2004 at 04:41:44PM -0700, Rasmus Lerdorf wrote:
> On Sun, 5 Sep 2004, Andi Gutmans wrote:
> > Yeah I know non-pic doesn't work on all platforms but I gathered that
> > -prefer-non-pic only uses PIC on platforms where non-PIC dso's aren't
> > supported. I guess I'm wrong and we do ne
On Sun, 5 Sep 2004, Andi Gutmans wrote:
> Yeah I know non-pic doesn't work on all platforms but I gathered that
> -prefer-non-pic only uses PIC on platforms where non-PIC dso's aren't
> supported. I guess I'm wrong and we do need better autoconf checks.
I am not sure what -prefer-non-pic does on a
At 04:25 PM 9/5/2004 -0700, Rasmus Lerdorf wrote:
On Sun, 5 Sep 2004, Andi Gutmans wrote:
> At 03:13 PM 9/5/2004 -0700, Rasmus Lerdorf wrote:
> >On Sun, 5 Sep 2004, Russ Garrett wrote:
> > > APC doesn't seem to work at all as a DSO, I'll try it statically later.
> >
> >I run it on thousands of serv
On Sun, 5 Sep 2004, Andi Gutmans wrote:
> At 03:13 PM 9/5/2004 -0700, Rasmus Lerdorf wrote:
> >On Sun, 5 Sep 2004, Russ Garrett wrote:
> > > APC doesn't seem to work at all as a DSO, I'll try it statically later.
> >
> >I run it on thousands of servers as a DSO. What are you seeing that would
> >m
At 03:13 PM 9/5/2004 -0700, Rasmus Lerdorf wrote:
On Sun, 5 Sep 2004, Russ Garrett wrote:
> APC doesn't seem to work at all as a DSO, I'll try it statically later.
I run it on thousands of servers as a DSO. What are you seeing that would
make you think this?
Also, if you are running PHP as a DSO a
Rasmus Lerdorf wrote:
On Sun, 5 Sep 2004, Russ Garrett wrote:
APC doesn't seem to work at all as a DSO, I'll try it statically later.
I run it on thousands of servers as a DSO. What are you seeing that would
make you think this?
I didn't really want to hang around with the site offline to find ou
On Sun, 5 Sep 2004, Russ Garrett wrote:
> APC doesn't seem to work at all as a DSO, I'll try it statically later.
I run it on thousands of servers as a DSO. What are you seeing that would
make you think this?
Also, if you are running PHP as a DSO and pushing your CPU you might want
to compile it
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