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Re: printf logs are not getting printed properly on system.log

Subject: Re: printf logs are not getting printed properly on system.log
From: JanakiRam <email@hidden>
Date: Thu, 23 Aug 2007 13:57:53 +0530
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HI Rodney,

         Thanks for the initial response.

        I'm using the printf function defined at kernel. Is there any similar way for printf ( similar to IOLog).

        Can i use the IOLog in Generic Kernel Extension ?

       Please clarify my queries. Thanks in advance.

-JanakiRam.

On 8/23/07, Rodney < email@hidden> wrote:

Dear Janaki,

Hope you are using IOLog for printing.

IOLog() is not synchronous normally, which means it is possible to miss log messages in the case of a kernel panic. However, setting the kIOLogSynchronous bit (0x00200000) in the io boot-time argument makes the console output synchronous. The file iokit/IOKit/IOKitDebug.h enumerates several other bits that can be set in the io argument to enable specific types of I/O Kit log messages.

Rohit

On 8/23/07, JanakiRam < email@hidden> wrote:
Hi ALL,

         I'm newbie to this kernel prorgamming. Please clarify my following query.

         I'm using printf for logging messages from my kext. One observation is all my logs are not getting printed when i start my kext using kextload. Its not consitent , how many logs are going to get printed every time i load the kext.

         Please help me to solve this. Thanks in Advance.

-JanakiRam.

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References:
	>printf logs are not getting printed properly on system.log (From: JanakiRam <email@hidden>)
	>Re: printf logs are not getting printed properly on system.log (From: Rodney <email@hidden>)

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