diff options
Diffstat (limited to 'man3')
| -rw-r--r-- | man3/CPU_SET.3 | 17 |
1 files changed, 11 insertions, 6 deletions
diff --git a/man3/CPU_SET.3 b/man3/CPU_SET.3 index 90b85da79a..7046fde3de 100644 --- a/man3/CPU_SET.3 +++ b/man3/CPU_SET.3 @@ -177,12 +177,6 @@ in the range 0 to Return the size in bytes of the CPU set that would be needed to hold CPUs in the range 0 to .IR num_cpus-1 . -.\" FIXME . track this bug -.\" Currently (glibc 2.8), CPU_ALLOC_SIZE() returns double the -.\" value that it should. This also causes CPU_ALLOC() to allocate -.\" twice as much memory as is required. -.\" http://sourceware.org/bugzilla/show_bug.cgi?id=7029 -.\" Eventually, write this up in BUGS. This macro provides the value that can be used for .I setsize in the @@ -305,6 +299,17 @@ main(int argc, char *argv[]) exit(EXIT_SUCCESS); } .fi +.SH BUGS +On 32-bit platforms with glibc 2.8 and earlier, +.BR CPU_ALLOC () +allocates twice as much space as is required, and +.BR CPU_ALLOC_SIZE () +returns a value twice as large as it should. +The only consequences for most programs is wasted space, +and slightly less efficient operation of the macros that +operate on dynamically allocated CPU sets. +These bugs are fixed in glibc 2.9. +.\" http://sourceware.org/bugzilla/show_bug.cgi?id=7029 .SH "SEE ALSO" .BR sched_setaffinity (2), .BR pthread_attr_setaffinity_np (3), |