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Operating Systems Linux kernel functions issue!
# 1  
Old 09-30-2008
kernel functions issue!
Hello All,

I'm new to linux programming and this is my first post.I am porting ethernet driver from Linux2.4 to Linux2.6 for Xscale, after modifications I am able to install the driver.
Now when i assign the address to my device using ifconfig, kenerl is going to panic. Stack trace is showing it is due to NULL pointer dereference in recalc_sigpending(). Replacing it by signal_pending(current) saves that. I could not figure out te difference, since both will ultimately access only one kernel data structure i.e. current.
Could anyone please throw light onto it?

I have given relevant details hopefully, but if some important information is missing, please point out. I would improve in my subsequent posts.

Thanks in advance for any help.
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LEARN ABOUT OPENSOLARIS

addpart

ADDPART(8)                                                     System Administration                                                    ADDPART(8)

NAME

       addpart - tell the kernel about the existence of a partition

SYNOPSIS

       addpart device partition start length

DESCRIPTION

       addpart  tells the Linux kernel about the existence of the specified partition.  The command is a simple wrapper around the "add partition"
       ioctl.

       This command doesn't manipulate partitions on a block device.

PARAMETERS

       device The disk device.

       partition
              The partition number.

       start  The beginning of the partition (in 512-byte sectors).

       length The length of the partition (in 512-byte sectors).

SEE ALSO

       delpart(8), fdisk(8), parted(8), partprobe(8), partx(8)

AVAILABILITY

       The addpart command is part of the util-linux package and is available from https://www.kernel.org/pub/linux/utils/util-linux/.

util-linux                                                         January 2015                                                         ADDPART(8)