HELP is urgently required,
I run on SCO Unix 3 and this is the panic message that I get every time that I reboot 10U
k_trap - kernel mode trap type 0x0000000E
I have checked the swap already having the following results:
#swap -l
path dev swaplo blocks free... (3 Replies)
hi,
I am trying to install sco openserver 5.0.4 on an old system. However, l was not able to proceed after putting the bootstr
l have this panic message of
PANIC: K_trap - kernel mode trap tupe 0x00000006
will someone kindly help to decode this error
kayode (1 Reply)
Hi all,
I am trying to setup a program to use a device driver and am confusing buffer access between User and Kernel mode. I think all applications running in User space have to communicate with the device drivers using io control calls and then have some functions called back from the driver... (1 Reply)
Hi all i have queastion. Can anybody pease help me
what is user mode and kernel mode and the term "De-mountable volumes" means?
Thanks
Palash (2 Replies)
Hello,
Can someone pls help me with some statistical calculation in awk
In excel there is a statistical function called "Mode".
How Mode works:
MODE returns the most frequently occurring, or repetitive, value in array or range.
Eg if we have 5 numbers in 5 different columns... (12 Replies)
Hi, i'm another question:
I'm a directory /usr/data on my server sco unix 5.0.5:
# du /usr/data
4386948 /usr/data
I'm tried to connect to ftp directory /usr/data to this server and:
PANIC: k_trap - Kernel mode trap type 0x0000000E
Cannot dump 262040 pages to dumpdev hd(1/41):space... (3 Replies)
Hi everyone. I would like to hook a system function (gettimeofday) to modify it. I guess I'll need kernel mode to do that. By the way, how could I do it (c++ or c)?
I want to modify that function for one process which I know the PID. So I need to return my own value for that PID and real value... (29 Replies)
Hi,all:
I run my program which consists of one kernel module and one user mode process on a dual core server. The problem here is the kernel module consumes 100% of one core while the user mode process only consumes 10% of the other core, is there any solution that I can assign some computing... (1 Reply)
Hi,
I am new to the linux kernel development area. I want to know what is the difference between kernel mode stack and user mode stack? Does each process has a user mode stack and a kernel mode stack?? Or Each process has a user mode stack and there is only one kernel mode stack that is shared by... (4 Replies)
When accessing a user mode buffers from kernel space drivers what precautions must we take and how those precautions need to be implemented? (0 Replies)
Discussion started by: rupeshkp728
0 Replies
LEARN ABOUT MOJAVE
getunwind
GETUNWIND(2) Linux Programmer's Manual GETUNWIND(2)NAME
getunwind - copy the unwind data to caller's buffer
SYNOPSIS
#include <syscall.h>
#include <linux/unwind.h>
long getunwind(void *buf, size_t buf_size);
Note: There is no glibc wrapper for this system call; see NOTES.
DESCRIPTION
Note: this function is obsolete.
The IA-64-specific getunwind() system call copies the kernel's call frame unwind data into the buffer pointed to by buf and returns the
size of the unwind data; this data describes the gate page (kernel code that is mapped into user space).
The size of the buffer buf is specified in buf_size. The data is copied only if buf_size is greater than or equal to the size of the
unwind data and buf is not NULL; otherwise, no data is copied, and the call succeeds, returning the size that would be needed to store the
unwind data.
The first part of the unwind data contains an unwind table. The rest contains the associated unwind information, in no particular order.
The unwind table contains entries of the following form:
u64 start; (64-bit address of start of function)
u64 end; (64-bit address of end of function)
u64 info; (BUF-relative offset to unwind info)
An entry whose start value is zero indicates the end of the table. For more information about the format, see the IA-64 Software Conven-
tions and Runtime Architecture manual.
RETURN VALUE
On success, getunwind() returns the size of the unwind data. On error, -1 is returned and errno is set to indicate the error.
ERRORS
getunwind() fails with the error EFAULT if the unwind info can't be stored in the space specified by buf.
VERSIONS
This system call is available since Linux 2.4.
CONFORMING TO
This system call is Linux-specific, and is available only on the IA-64 architecture.
NOTES
This system call has been deprecated. The modern way to obtain the kernel's unwind data is via the vdso(7).
Glibc does not provide a wrapper for this system call; in the unlikely event that you want to call it, use syscall(2).
SEE ALSO getauxval(3)COLOPHON
This page is part of release 4.15 of the Linux man-pages project. A description of the project, information about reporting bugs, and the
latest version of this page, can be found at https://www.kernel.org/doc/man-pages/.
Linux 2017-09-15 GETUNWIND(2)