Re: [core-dev] latest NIO changes trigger OS X crashes

Yikes!  You have experienced these with the most recent code?  There 
was a small period of time in which we experienced kernel panics on OSX 
while we were using Pipes, but we have since changed the implementation 
to not use pipes and the bug went away.  It may have appeared again 
more recently while converting UDPService to using NIO.  We'll look 
into it some more.  Thanks for the heads up!

Thanks,
  Sam

On Apr 14, 2005, at 4:33 PM, Jens-Uwe Mager wrote:

> Appearently the latest versions of LimeWire with NIO (at least NIO
> appears to be the best candidate as per the recent changes) do trigger
> an OS X kernel bug. At least on two machines I have found the following
> system crashes happening while LimeWire was running (from
> /Library/Logs/panic.log):
>
> *********
>
> Thu Apr 14 03:47:03 2005
>
>
>
>
> Unresolved kernel trap(cpu 0): 0x300 - Data access
> DAR=0x0000000000000014 PC=0x0
> 00000000020C8F4
> Latest crash info for cpu 0:
>    Exception state (sv=0x1F736C80)
>       PC=0x0020C8F4; MSR=0x00009030; DAR=0x00000014; DSISR=0x40000000;
> LR=0x0020
> C800; R1=0x0C9CBC20; XCP=0x0000000C (0x300 - Data access)
>       Backtrace:
>          0x00000000 0x0020C330 0x002463E4 0x00094160 0x01000000
> Proceeding back via exception chain:
>    Exception state (sv=0x1F736C80)
>       previously dumped as "Latest" state. skipping...
>    Exception state (sv=0x2E895780)
>       PC=0x9002E1CC; MSR=0x0000F030; DAR=0xE5CF3000; DSISR=0x42000000;
> LR=0x8D76
> 5A8C; R1=0xF0D3A390; XCP=0x00000030 (0xC00 - System call)
>
> Kernel version:
> Darwin Kernel Version 7.8.0:
> Wed Dec 22 14:26:17 PST 2004; root:xnu/xnu-517.11.1.obj~1/RELEASE_PPC
>
>
> panic(cpu 0): 0x300 - Data access
> Latest stack backtrace for cpu 0:
>       Backtrace:
>          0x000835F8 0x00083ADC 0x0001EDA4 0x00090BD8 0x00093FCC
> Proceeding back via exception chain:
>    Exception state (sv=0x1F736C80)
>       PC=0x0020C8F4; MSR=0x00009030; DAR=0x00000014; DSISR=0x40000000;
> LR=0x0020
> C800; R1=0x0C9CBC20; XCP=0x0000000C (0x300 - Data access)
>       Backtrace:
>          0x00000000 0x0020C330 0x002463E4 0x00094160 0x01000000
>    Exception state (sv=0x2E895780)
>       PC=0x9002E1CC; MSR=0x0000F030; DAR=0xE5CF3000; DSISR=0x42000000;
> LR=0x8D76
> 5A8C; R1=0xF0D3A390; XCP=0x00000030 (0xC00 - System call)
>
> Kernel version:
> Darwin Kernel Version 7.8.0:
> Wed Dec 22 14:26:17 PST 2004; root:xnu/xnu-517.11.1.obj~1/RELEASE_PPC
>
>
> *********
>
> If you roll out the NIO changes on a wider basis expect a flurry of
> system crash reports from users. As these system crashes do cause lost
> work due to a reboot this problem is very serious. It would probably be
> a good idea to open a support case with Apple to get that problem 
> fixed.
> This is just a head's up so you do not stumble into the problem
> unprepared.
> -- 
> Jens-Uwe Mager	<pgp-mailto:F476EBC2>
> _______________________________________________
> core-dev mailing list
> [email protected]
> http://www.limewire.org/mailman/listinfo/core-dev
>

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