bt command shows wrong number of parameters

[Timur Tabi <timur.tabi@xxxxxxxxxxx>]

I'm new to kdb, so I'm sure this is a misunderstanding on my part, but 
when I use the bt command to display a stack trace, I get this:

[1]kdb> bt
Stack traceback for pid 18117
0xf5864220    18117    18102  1    1   R  0xf58644b0 *cconfig
EBP        EIP        Function (args)
0xec7d9f6c 0xf8afdb02 [ccil]ccilioctl+0x562 (0x0, 0xf5875b80, 0x0, 
0xf5875b80, 0x0)
                                ccil 0xf8afd5a0 0xf8afe0d0
0xec7d9ef4 0xc0173844 chrdev_open+0xd4 (0xbffff130, 0xec7d9f90, 
0xf7867d1c, 0xf5875b80, 0xc01670c7)
                                kernel 0xc0173770 0xc0173930
0xec7d9fbc 0xc017da96 sys_ioctl+0x2d6
                                kernel 0xc017d7c0 0xc017dc6c
            0xc01091a9 sysenter_past_esp+0x52
                                kernel 0xc0109157 0xc01091d0

The problem is that the function ccilioctl() has only four parameters, 
not five:

int ccilioctl(struct inode * inode, struct file *f, volatile unsigned 
int cmd, unsigned long arg)

What does "(0x0, 0xf5875b80, 0x0, 0xf5875b80, 0x0)" mean?  I seriously 
doubt this is the parameter list for ccilioctl, even with the extra 
number, because none of the four parameters are zero.


-- 
Timur Tabi
Staff Software Engineer
timur.tabi@xxxxxxxxxxx
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