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Remove fixed problems from FAQ

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Miroslav Lichvar 2013-06-19 14:40:20 +02:00
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@ -96,56 +96,6 @@ at all, I found xntpd gave me no help with managing the local clock's
gain/loss rate on the NTP master node (which I set from my watch). I
added some automated support in chrony to deal with this.
S: Compilation issues
Q:How do I apply source patches?
Sometimes we release source patches rather than a full version when we need to
provide a fix for small problems. Supposing you have chrony-1.X.tar.gz and a
source patch chrony-1.X-1.X.1.gz. The steps required are:
tar xzvf ../chrony-1.X.tar.gz
cd chrony-1.X
gunzip < ../../chrony-1.X-1.X.1.gz | patch -p1
./configure
make
make install
Q:Can I compile chrony with an ANSI-C compiler that is not GCC v2.x?
I have had reports that chrony can be compiled with GCC v1.42, by using the
following trick when running make
make CC='gcc -D__FUNCTION__=\"function_not_available\"'
(this gets around the lack of a __FUNCTION__ macro in GCC v1.)
The same trick may be enough to allow other compilers to be used.
Q: I get errors like 'client.c:44: readline/readline.h: file not found'
Read the section about 'readline' in the INSTALL file or in chrony.txt. You
may need to disable readline support (e.g. if you haven't got readline
installed at all, or just don't want it), or specify the location of the
readline files (e.g. if you've installed them in a non-standard place).
Q: I have RedHat 7.3 and can't compile rtc_linux.c (error in spinlock.h)
The following solution has been found for this. Enter the following 3 commands
(as root):
cd /usr/include/
mv linux linux.rh
ln -s /usr/src/linux/include/linux ./linux
The problem seems to be that RedHat provide their own kernel header files in
/usr/include/linux. Besides differing from those used by your current kernel,
if you compiled it yourself, they also seem to have been changed in a way that
causes a problem compiling chrony. Chrony compiles fine with standard kernel
header files.
There have also been reports that just replacing the file
/usr/src/linux/spinlock.h by the equivalent file from a vanilla kernel source
tree is sufficient to fix the problem.
Note : from version 1.21 onwards, this problem no longer exists. The kernel
header files are no longer included.
S: Selection of NTP servers
Q: I have several computers on a LAN. Should I make one the master, or make them all clients of an external server?
I think the best configuration is to make one computer the master, with the
@ -201,15 +151,6 @@ Do you have a 'local stratum X' directive in the chrony.conf file? If X is
lower than the stratum of the server you're trying to use, this situation will
arise. You should always make X quite high (e.g. 10) in this directive.
S: Issues with chronyd
Q: chronyd crashes after a syslog message "adjtimex failed for set frequency"
The usual cause is that the kernel is running with a different value of 'HZ'
(the timer interrupt rate) than the value that was found in the kernel header
files when chrony was compiled. The chrony.conf file can include options to
modify the HZ value (see the discussion of linux_hz and linux_freq_scale in the
documentation), however the problem is to find the value of HZ being used.
S: Issues with chronyc
Q: I keep getting the error '510 No command access from this host --- Reply not authenticated'.
@ -268,14 +209,6 @@ For the real time clock support to work, you need the following three things:
* enhanced RTC support compiled into the kernel
* an 'rtcfile' directive in your chrony.conf file.
S: Problems with isolated networks.
Q: When I use the 'settime' command, chronyd crashes.
If you enter times that are too far away from the real time, chronyd will
think the system clock runs fast or slow by an excessive amount. The required
compensation factor will be outside the bounds for the adjtimex() system call.
chronyd will crash when it tries to apply such an excessive adjustment.
S: Microsoft Windows
Q: Does chrony support Windows?