10 More Discussions You Might Find Interesting
1. UNIX for Dummies Questions & Answers
I need to rebuild an application that developed in unix environment and run in windows OS with cygwin. so How can I rebuild from the source code?
is there any one who said something on this regard? (2 Replies)
Discussion started by: bejirond
2 Replies
2. Red Hat
Hi expert,
I goes to
# pwd
/usr/src/kernels/2.6.32-279.el6.x86_64
then I make bzImage I meet error
# make
CHK include/linux/version.h
CHK include/linux/utsrelease.h
SYMLINK include/asm -> include/asm-x86
make: *** No rule to make target `missing-syscalls'. Stop.
make:... (1 Reply)
Discussion started by: yanglei_fage
1 Replies
3. Programming
Hi, I'm pretty new to kernel coding and I'm working on a device driver that works with an existing framework.
Basically my module will be loaded/unloaded multiple times and I'd like to create a register a class, driver, and create a /dev node on the first load only. The existing framework... (0 Replies)
Discussion started by: ThomasBrez
0 Replies
4. UNIX for Dummies Questions & Answers
hi,
system operation: unix sco 3.2.4
Kernel not rebuild, do not remove or update tcp/ip e3H0 driver.
messages:
cat:cannot open../sdevice.d/5
line:5.1 32 -1
fatal error:mdevice:wrong number of fields
idmaster:device do not exist in therefore can not be update
idinstall: cannot... (0 Replies)
Discussion started by: milen
0 Replies
5. Post Here to Contact Site Administrators and Moderators
I would like to know what place do I go to post on the topic of kernel development or design? (2 Replies)
Discussion started by: DevSer2279
2 Replies
6. Solaris
Hi, Anyone can help
My solaris 8 system has the following
/dev/null , /dev/tty and /dev/console
All permission are lrwxrwxrwx
Can this be change to a non-world write ??
any impact ?? (12 Replies)
Discussion started by: civic2005
12 Replies
7. UNIX for Advanced & Expert Users
Hi!!!
I installed the patch: DUV40F16-C0040500-10245-Manual-20010328 to avoid a reboot problem in my server, AlphaServer 4100 with Tru64 4.0F.
When the patch instalation finished I rebuild the kernel like this:
# duconfig -c ORACLE-TEST
Start de rebuild and a few minutes after appear... (0 Replies)
Discussion started by: irasela
0 Replies
8. UNIX for Advanced & Expert Users
i really have an issue with the otherwise outstading FreeBSD Handbook when it comes to kernel building. information on the proper steps to take is really confusing. i think that chapters 9 and 21 need to be combined to give a very concise format on how best to deal with kernel building/rebuidling... (1 Reply)
Discussion started by: xyyz
1 Replies
9. UNIX for Dummies Questions & Answers
Trying to install some ide raid drivers (to add some more hdds) and the instrcutions have toled me to modify some code in the kernel folder in usr/src (this is mandrake linux 9 btw). I need to then rebuild the kernel, how do I do this? Is there some file that I bring up for a whole c project (the... (2 Replies)
Discussion started by: pudad
2 Replies
10. UNIX for Dummies Questions & Answers
Hello.
I'm installing Oracle8i on Red Hat Linux Server 7.0. The Oracle documentation has some preinstallation request to be carried before installing the Oracle software. It asks to modify some SEMAPHORE & SHARED MEMORY values in to a specified file. And finally after updating this values it... (2 Replies)
Discussion started by: S.Vishwanath
2 Replies
tickadj(8) System Manager's Manual tickadj(8)
NAME
tickadj - set time-related kernel variables
SYNOPSIS
tickadj [ tick ]
tickadj [ -Aqs ] [ -a tickadj ] [ -t tick ]
DESCRIPTION
The tickadj program reads, and optionally modifies, several timekeeping-related variables in older kernels that do not have support for
precision ttimekeeping, including HP-UX, SunOS, Ultrix, SGI and probably others. Those machines provide means to patch the kernel
/dev/kmem. Newer machines with kernel time support, including Solaris, Tru64, FreeBSD and Linux, should NOT use the program, even if it
appears to work, as it will destabilize the kernel time support. Use the ntptime program instead.
The particular variables that can be changed with tickadj include tick, which is the number of microseconds added to the system time for a
clock interrupt, tickadj, which sets the slew rate and resolution used by the adjtime system call, and dosynctodr, which indicates to the
kernels on some machines whether they should internally adjust the system clock to keep it in line with time-of-day clock or not.
On Linux, only the tick variable is supported and the only allowed argument is the tick value.
By default, with no arguments, tickadj reads the variables of interest in the kernel and displays them. At the same time, it determines an
"optimal" value for the value of the tickadj variable if the intent is to run the ntpd Network Time Protocol (NTP) daemon, and prints this
as well. Since the operation of tickadj when reading the kernel mimics the operation of similar parts of the ntpd program fairly closely,
this can be useful when debugging problems with ntpd.
Note that tickadj should be run with some caution when being used for the first time on different types of machines. The operations which
tickadj tries to perform are not guaranteed to work on all Unix machines and may in rare cases cause the kernel to crash.
COMMAND LINE OPTIONS
-a tickadj
Set the kernel variable tickadj to the value tickadjspecified.
-A Set the kernel variable tickadj to an internally computed "optimal" value.
-t tick Set the kernel variable tick to the value tick specified.
-s Set the kernel variable dosynctodr to zero, which disables the hardware time-of-year clock, a prerequisite for running the ntpd
daemon under SunOS 4.x.
-q Normally, tickadj is quite verbose about what it is doing. The -q flag tells it to shut up about everything except errors.
FILES
/vmunix /unix /dev/kmem
BUGS
Fiddling with kernel variables at run time as a part of ordinary operations is a hideous practice which is only necessary to make up for
deficiencies in the implementation of adjtime in many kernels and/or brokenness of the system clock in some vendors' kernels. It would be
much better if the kernels were fixed and the tickadj program went away.
SEE ALSO
ntpd(8)
The official HTML documentation.
This file was automatically generated from HTML source.
tickadj(8)