Re: Is it really necessary for fatal() to dump core?

2009-05-20 Thread Mark Nottingham

Patch at:
  http://www.squid-cache.org/bugs/show_bug.cgi?id=2673


On 19/05/2009, at 1:50 PM, Mark Nottingham wrote:


tools.c:fatal() dumps core because it calls abort.

Considering that the core can be quite large (esp. on a 64bit  
system), and that there's fatal_dump() as well if you really want  
one, can we just make fatal() exit(1) instead of abort()ing?


Cheers,

--
Mark Nottingham   m...@yahoo-inc.com




--
Mark Nottingham   m...@yahoo-inc.com




R: Is it really necessary for fatal() to dump core?

2009-05-19 Thread Guido Serassio
 -Messaggio originale-
 Da: adrian.ch...@gmail.com [mailto:adrian.ch...@gmail.com] Per conto di
 Adrian Chadd
 Inviato: martedì 19 maggio 2009 6.26
 A: Mark Nottingham
 Cc: Squid Developers
 Oggetto: Re: Is it really necessary for fatal() to dump core?
 
 just make that behaviour configurable?
 
 core_on_fatal {on|off}
 
+1

Regards

Guido

 
 Adrian
 
 2009/5/19 Mark Nottingham m...@yahoo-inc.com:
  tools.c:fatal() dumps core because it calls abort.
 
  Considering that the core can be quite large (esp. on a 64bit system),
 and
  that there's fatal_dump() as well if you really want one, can we just
 make
  fatal() exit(1) instead of abort()ing?
 
  Cheers,
 
  --
  Mark Nottingham       m...@yahoo-inc.com
 
 
 

Guido Serassio

Acme Consulting S.r.l. - Microsoft Certified Partner
Via Lucia Savarino, 110098 - Rivoli (TO) - ITALY
Tel. : +39.011.9530135   Fax. : +39.011.9781115
Email: i...@acmeconsulting.it
WWW: http://www.acmeconsulting.it/



Re: Is it really necessary for fatal() to dump core?

2009-05-19 Thread Mark Nottingham
I'm going to push back on that; the administrator doesn't really have  
any need to get a core when, for example, append_domain doesn't start  
with .'.


Squid.conf is bloated as it is; if there are cases where a core could  
be conceivably useful, they should be converted to fatal_dump. From  
what I've seen they'll be a small minority at best...





On 19/05/2009, at 2:25 PM, Adrian Chadd wrote:


just make that behaviour configurable?

core_on_fatal {on|off}



Adrian

2009/5/19 Mark Nottingham m...@yahoo-inc.com:

tools.c:fatal() dumps core because it calls abort.

Considering that the core can be quite large (esp. on a 64bit  
system), and
that there's fatal_dump() as well if you really want one, can we  
just make

fatal() exit(1) instead of abort()ing?

Cheers,

--
Mark Nottingham   m...@yahoo-inc.com





--
Mark Nottingham   m...@yahoo-inc.com




Re: Is it really necessary for fatal() to dump core?

2009-05-19 Thread Adrian Chadd
2009/5/19 Mark Nottingham m...@yahoo-inc.com:
 I'm going to push back on that; the administrator doesn't really have any
 need to get a core when, for example, append_domain doesn't start with .'.

 Squid.conf is bloated as it is; if there are cases where a core could be
 conceivably useful, they should be converted to fatal_dump. From what I've
 seen they'll be a small minority at best...

Well, I'd be interested in seeing some better defined characteristics
of stuff with some sort of defined expectations and behaviour. Like
an API. :)

Right now, fatal, assert, etc are all used interchangably for quite a
wide variety of reasons and the codebase may be much better off if
someone starts off by fixing these a bit.




Adrian


Re: Is it really necessary for fatal() to dump core?

2009-05-19 Thread Amos Jeffries
 I'm going to push back on that; the administrator doesn't really have
 any need to get a core when, for example, append_domain doesn't start
 with .'.

 Squid.conf is bloated as it is; if there are cases where a core could
 be conceivably useful, they should be converted to fatal_dump. From
 what I've seen they'll be a small minority at best...


That I agree with. Grep the code for all fatals and see what falls out.
I think you will find it's only the config parser that can get away with
non-core fatals.

Amos




 On 19/05/2009, at 2:25 PM, Adrian Chadd wrote:

 just make that behaviour configurable?

 core_on_fatal {on|off}



 Adrian

 2009/5/19 Mark Nottingham m...@yahoo-inc.com:
 tools.c:fatal() dumps core because it calls abort.

 Considering that the core can be quite large (esp. on a 64bit
 system), and
 that there's fatal_dump() as well if you really want one, can we
 just make
 fatal() exit(1) instead of abort()ing?

 Cheers,

 --
 Mark Nottingham   m...@yahoo-inc.com




 --
 Mark Nottingham   m...@yahoo-inc.com







Re: Is it really necessary for fatal() to dump core?

2009-05-19 Thread Mark Nottingham
Yeah; looking through, it looks to me like a few in the auth and fs  
modules need to be changed to fatal_dump; the rest (over a hundred)  
don't really need a core -- they're things like config parsing errors  
and self-evident error states.


I'll come up with a patch that does that and adds a FATAL_DUMPS  
compile-time flag with a 0 default.



On 20/05/2009, at 11:28 AM, Mark Nottingham wrote:

The case that triggered this for me was when the log daemon dies;  
doesn't make much sense to core there either.


I'll take a look through and report back.


On 20/05/2009, at 11:24 AM, Amos Jeffries wrote:

I'm going to push back on that; the administrator doesn't really  
have
any need to get a core when, for example, append_domain doesn't  
start

with .'.

Squid.conf is bloated as it is; if there are cases where a core  
could

be conceivably useful, they should be converted to fatal_dump. From
what I've seen they'll be a small minority at best...



That I agree with. Grep the code for all fatals and see what falls  
out.
I think you will find it's only the config parser that can get away  
with

non-core fatals.

Amos





On 19/05/2009, at 2:25 PM, Adrian Chadd wrote:


just make that behaviour configurable?

core_on_fatal {on|off}



Adrian

2009/5/19 Mark Nottingham m...@yahoo-inc.com:

tools.c:fatal() dumps core because it calls abort.

Considering that the core can be quite large (esp. on a 64bit
system), and
that there's fatal_dump() as well if you really want one, can we
just make
fatal() exit(1) instead of abort()ing?

Cheers,

--
Mark Nottingham   m...@yahoo-inc.com





--
Mark Nottingham   m...@yahoo-inc.com








--
Mark Nottingham   m...@yahoo-inc.com




--
Mark Nottingham   m...@yahoo-inc.com




Re: Is it really necessary for fatal() to dump core?

2009-05-19 Thread Amos Jeffries
 Yeah; looking through, it looks to me like a few in the auth and fs
 modules need to be changed to fatal_dump; the rest (over a hundred)
 don't really need a core -- they're things like config parsing errors
 and self-evident error states.

 I'll come up with a patch that does that and adds a FATAL_DUMPS
 compile-time flag with a 0 default.

What do you mean by that last?
I think if you are going to correct the fatal() and fatal_dump() usage it
won't be needed.

Amos



 On 20/05/2009, at 11:28 AM, Mark Nottingham wrote:

 The case that triggered this for me was when the log daemon dies;
 doesn't make much sense to core there either.

 I'll take a look through and report back.


 On 20/05/2009, at 11:24 AM, Amos Jeffries wrote:

 I'm going to push back on that; the administrator doesn't really
 have
 any need to get a core when, for example, append_domain doesn't
 start
 with .'.

 Squid.conf is bloated as it is; if there are cases where a core
 could
 be conceivably useful, they should be converted to fatal_dump. From
 what I've seen they'll be a small minority at best...


 That I agree with. Grep the code for all fatals and see what falls
 out.
 I think you will find it's only the config parser that can get away
 with
 non-core fatals.

 Amos




 On 19/05/2009, at 2:25 PM, Adrian Chadd wrote:

 just make that behaviour configurable?

 core_on_fatal {on|off}



 Adrian

 2009/5/19 Mark Nottingham m...@yahoo-inc.com:
 tools.c:fatal() dumps core because it calls abort.

 Considering that the core can be quite large (esp. on a 64bit
 system), and
 that there's fatal_dump() as well if you really want one, can we
 just make
 fatal() exit(1) instead of abort()ing?

 Cheers,

 --
 Mark Nottingham   m...@yahoo-inc.com




 --
 Mark Nottingham   m...@yahoo-inc.com






 --
 Mark Nottingham   m...@yahoo-inc.com



 --
 Mark Nottingham   m...@yahoo-inc.com







Re: Is it really necessary for fatal() to dump core?

2009-05-19 Thread Mark Nottingham

Fine by me.

On 20/05/2009, at 12:25 PM, Amos Jeffries wrote:


Yeah; looking through, it looks to me like a few in the auth and fs
modules need to be changed to fatal_dump; the rest (over a hundred)
don't really need a core -- they're things like config parsing errors
and self-evident error states.

I'll come up with a patch that does that and adds a FATAL_DUMPS
compile-time flag with a 0 default.


What do you mean by that last?
I think if you are going to correct the fatal() and fatal_dump()  
usage it

won't be needed.

Amos




On 20/05/2009, at 11:28 AM, Mark Nottingham wrote:


The case that triggered this for me was when the log daemon dies;
doesn't make much sense to core there either.

I'll take a look through and report back.


On 20/05/2009, at 11:24 AM, Amos Jeffries wrote:


I'm going to push back on that; the administrator doesn't really
have
any need to get a core when, for example, append_domain doesn't
start
with .'.

Squid.conf is bloated as it is; if there are cases where a core
could
be conceivably useful, they should be converted to fatal_dump.  
From

what I've seen they'll be a small minority at best...



That I agree with. Grep the code for all fatals and see what falls
out.
I think you will find it's only the config parser that can get away
with
non-core fatals.

Amos





On 19/05/2009, at 2:25 PM, Adrian Chadd wrote:


just make that behaviour configurable?

core_on_fatal {on|off}



Adrian

2009/5/19 Mark Nottingham m...@yahoo-inc.com:

tools.c:fatal() dumps core because it calls abort.

Considering that the core can be quite large (esp. on a 64bit
system), and
that there's fatal_dump() as well if you really want one, can we
just make
fatal() exit(1) instead of abort()ing?

Cheers,

--
Mark Nottingham   m...@yahoo-inc.com





--
Mark Nottingham   m...@yahoo-inc.com








--
Mark Nottingham   m...@yahoo-inc.com




--
Mark Nottingham   m...@yahoo-inc.com








--
Mark Nottingham   m...@yahoo-inc.com




Is it really necessary for fatal() to dump core?

2009-05-18 Thread Mark Nottingham

tools.c:fatal() dumps core because it calls abort.

Considering that the core can be quite large (esp. on a 64bit system),  
and that there's fatal_dump() as well if you really want one, can we  
just make fatal() exit(1) instead of abort()ing?


Cheers,

--
Mark Nottingham   m...@yahoo-inc.com




Re: Is it really necessary for fatal() to dump core?

2009-05-18 Thread Adrian Chadd
just make that behaviour configurable?

core_on_fatal {on|off}



Adrian

2009/5/19 Mark Nottingham m...@yahoo-inc.com:
 tools.c:fatal() dumps core because it calls abort.

 Considering that the core can be quite large (esp. on a 64bit system), and
 that there's fatal_dump() as well if you really want one, can we just make
 fatal() exit(1) instead of abort()ing?

 Cheers,

 --
 Mark Nottingham       m...@yahoo-inc.com