source: patches/procps-3.2.8-fix_HZ_errors-1.patch@ f438d57

Submitted By: DJ Lucas <dj_AT_linuxfromscratch_DOT_org>
Date: 2010-09-20
Initial Package Version: 3.2.8
Origin: Debian 30_sysinfo_7numbers.patch
Upstream Status: Submitted
Description: Fixes "unknown HZ value (##)" errors in procps utils.

diff -Naurp procps-3.2.8-orig//proc/sysinfo.c procps-3.2.8//proc/sysinfo.c
--- procps-3.2.8-orig//proc/sysinfo.c   2008-03-23 23:33:43.000000000 -0500
+++ procps-3.2.8//proc/sysinfo.c        2010-09-20 01:13:36.000000000 -0500
@@ -124,24 +124,25 @@ int uptime(double *restrict uptime_secs,
 unsigned long long Hertz;
 
 static void old_Hertz_hack(void){
-  unsigned long long user_j, nice_j, sys_j, other_j;  /* jiffies (clock ticks) */
+  unsigned long long user_j, nice_j, sys_j, other_j, wait_j, hirq_j, sirq_j, stol_j;  /* jiffies (clock ticks) */
   double up_1, up_2, seconds;
   unsigned long long jiffies;
   unsigned h;
   char *restrict savelocale;
 
+  wait_j = hirq_j = sirq_j = stol_j = 0;
   savelocale = setlocale(LC_NUMERIC, NULL);
   setlocale(LC_NUMERIC, "C");
   do{
     FILE_TO_BUF(UPTIME_FILE,uptime_fd);  sscanf(buf, "%lf", &up_1);
     /* uptime(&up_1, NULL); */
     FILE_TO_BUF(STAT_FILE,stat_fd);
-    sscanf(buf, "cpu %Lu %Lu %Lu %Lu", &user_j, &nice_j, &sys_j, &other_j);
+    sscanf(buf, "cpu %Lu %Lu %Lu %Lu %Lu %Lu %Lu %Lu", &user_j, &nice_j, &sys_j, &other_j, &wait_j, &hirq_j, &sirq_j, &stol_j);
     FILE_TO_BUF(UPTIME_FILE,uptime_fd);  sscanf(buf, "%lf", &up_2);
     /* uptime(&up_2, NULL); */
   } while((long long)( (up_2-up_1)*1000.0/up_1 )); /* want under 0.1% error */
   setlocale(LC_NUMERIC, savelocale);
-  jiffies = user_j + nice_j + sys_j + other_j;
+  jiffies = user_j + nice_j + sys_j + other_j + wait_j + hirq_j + sirq_j + stol_j ;
   seconds = (up_1 + up_2) / 2;
   h = (unsigned)( (double)jiffies/seconds/smp_num_cpus );
   /* actual values used by 2.4 kernels: 32 64 100 128 1000 1024 1200 */
@@ -221,12 +222,13 @@ static void init_libproc(void){
   // _SC_NPROCESSORS_ONLN returns 1, which should work OK
   smp_num_cpus = sysconf(_SC_NPROCESSORS_ONLN);
   if(smp_num_cpus<1) smp_num_cpus=1; /* SPARC glibc is buggy */
-
+#ifdef __linux__
   if(linux_version_code > LINUX_VERSION(2, 4, 0)){ 
     Hertz = find_elf_note(AT_CLKTCK);
     if(Hertz!=NOTE_NOT_FOUND) return;
     fputs("2.4+ kernel w/o ELF notes? -- report this\n", stderr);
   }
+#endif
   old_Hertz_hack();
 }