Hi,
My IOKit driver has provider Class IOPCIDevice.
and Driver class is derived from IOSCSIParallelInteraceController.
Running my driver on G5 PCI-X dual 1.8GHz system.
When I load the driver using kextload -v myDriver.kext
Randomly I get kernel panic at this point:
("pmap_unnest: Other processor (%d) did not see interruption request\n", i);
This panic is totally occurs in random faction.
Event if I restart the system and load the same binary I some times get the
kernel panic and even some times it loads perfectly.
I am not wiring down even 2-3Mbytes of memory for my PCI firmware.
What can be the cause of this kernel panic??
I looked at the kernel panic back trace and none of the address falls in the
my driver code.
What steps or care should I take to avoid this pmap_unnest kernel panic?
-----------------------------------------------------
panic(cpu 1): pmap_unnest: Other processor (0) did not see interruption
request
Latest stack backtrace for cpu 1:
Backtrace:
0x000837BC 0x00083CA0 0x0001EDA4 0x00085D64 0x000600A0 0x000604EC
0x0002FE0C 0x0020ADB0
0x0020AC38 0x002405F4 0x00094300 0x00650079
Kernel loadable modules in backtrace (with dependencies):
com.apple.iokit.IOHIDFamily(1.3.4)@0x640000
Proceeding back via exception chain:
Exception state (sv=0x1DE52C80)
PC=0x90034F4C; MSR=0x0000D030; DAR=0x16E5C004; DSISR=0x40000000;
LR=0x9002C8EC; R1=0xBFFFF700; XCP=0x00000030 (0xC00 - System call)
Kernel version:
Darwin Kernel Version 7.3.1:
Fri Mar 5 14:05:05 PST 2004; root:xnu/xnu-517.4.11.obj~1/RELEASE_PPC
Regards,
Parav Pandit
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