[asterisk-bugs] [DAHDI-linux 0013206]: [patch] ztdynamic double buffering on rx, statistics

[Asterisk Bug Tracker]

A NOTE has been added to this issue. 
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http://bugs.digium.com/view.php?id=13206 
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Reported By:                biohumanoid
Assigned To:                
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Project:                    DAHDI-linux
Issue ID:                   13206
Category:                   dahdi_dynamic
Reproducibility:            have not tried
Severity:                   major
Priority:                   normal
Status:                     new
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Date Submitted:             2008-07-31 00:28 CDT
Last Modified:              2008-09-24 03:05 CDT
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Summary:                    [patch] ztdynamic double buffering on rx, statistics
Description: 
In current implementation:
1. If we have more than one TDMoE device, we'll have a slip/skip. 2 TDMoE
devices can have phase jitter.
2. We have no statistics (which is necessary).
3. ztdynamic can't be a master for zaptel (but why not ?)
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 (0092820) biohumanoid (reporter) - 2008-09-24 03:05
 http://bugs.digium.com/view.php?id=13206#c92820 
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>module_printk(level, fmt, args...) printk(level "%s: " fmt,
THIS_MODULE->name, ## args)

>Actually, this macro is defined twice already. Maybe move it to kernel.h
? 
Yes, you should.

> 1024 as in your comment
artifact from zaptel-1.4...

tasklet statistics takes <= 150 bytes
per-span statistics takes <= 150 bytes

I think 4096/150 - 1 = 26 dynamic spans is much enougth.
i386 can't handle 26000 of interrupts per second...

I've forgot one more bug fixed:
in dahdi_dynamic_unregister, dynamic_destroy(z) can be called with
spinlock..
this finally will call checkmaster with spinlock... 

Issue History 
Date Modified    Username       Field                    Change               
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2008-09-24 03:05 biohumanoid    Note Added: 0092820                          
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