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Updated discussion of maximum timer value to reflect the fact 

that the default jiffy is now 4 milliseconds.
Added a FIXME.
This commit is contained in:
Michael Kerrisk 2006-04-26 04:42:14 +00:00
parent bb47b54bfb
commit a8bbb90693
1 changed files with 6 additions and 2 deletions
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8
man2/getitimer.2
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@ -149,9 +149,10 @@ representation exceeds MAX_SEC_IN_JIFFIES
(defined in
.IR include/linux/jiffies.h ),
then the timer is silently truncated to this ceiling value.
On Linux 2.6 on x86 (where a jiffy is 0.001 seconds),
On Linux/x86 (where, since kerenl 2.6.13,
the default jiffy is 0.004 seconds),
this means that the ceiling value for a timer is
approximately 24.86 days.
approximately 99.42 days.
On certain systems (including x86),
Linux kernels before version 2.6.12 have a bug which will produce
@ -167,3 +168,6 @@ should fail if a
value is specified that is outside of the range 0 to 999999.
However, Linux does not give an error, but instead silently
adjusts the corresponding seconds value for the timer.
.\" FIXME . Bugzilla report 25 Apr 2006:
.\" http://bugzilla.kernel.org/show_bug.cgi?id=6443
.\" "setitimer() should reject non-canonical arguments"