diff options
Diffstat (limited to 'extra/irqbalance/Special-interrupt-counts-line-NMI-may-start-with-a-s.patch')
| -rw-r--r-- | extra/irqbalance/Special-interrupt-counts-line-NMI-may-start-with-a-s.patch | 67 |
1 files changed, 67 insertions, 0 deletions
diff --git a/extra/irqbalance/Special-interrupt-counts-line-NMI-may-start-with-a-s.patch b/extra/irqbalance/Special-interrupt-counts-line-NMI-may-start-with-a-s.patch new file mode 100644 index 000000000..c2e69c218 --- /dev/null +++ b/extra/irqbalance/Special-interrupt-counts-line-NMI-may-start-with-a-s.patch @@ -0,0 +1,67 @@ +From: Shawn Bohrer <sbohrer@rgmadvisors.com> + +Special interrupt counts line NMI may start with a space + +The kernel determines the maximum number of possible IRQs and pads the +first field of /proc/interrupts appropriately. With four or more digits +of precession the special interrupt counts all start with a space +instead of a letter. This caused the special interrupt counts to be +counted on my system and that caused the cpunr count to be off when it +reached the ERR and MIS lines forcing a CPU rescan. + +Signed-off-by: Shawn Bohrer <sbohrer@rgmadvisors.com> +--- + procinterrupts.c | 24 +++++++++++------------- + 1 files changed, 11 insertions(+), 13 deletions(-) + +diff --git a/procinterrupts.c b/procinterrupts.c +index e336efe..322f4de 100644 +--- a/procinterrupts.c ++++ b/procinterrupts.c +@@ -55,20 +55,18 @@ void parse_proc_interrupts(void) + if (getline(&line, &size, file)==0) + break; + +- ++ number = strtoul(line, &c, 10); + /* lines with letters in front are special, like NMI count. Ignore */ +- if (!(line[0]==' ' || (line[0]>='0' && line[0]<='9'))) +- break; +- c = strchr(line, ':'); +- if (!c) ++ if (line == c) ++ continue; ++ ++ if (c[0] == ':') ++ ++c; ++ else + continue; +- *c = 0; +- c++; +- number = strtoul(line, NULL, 10); ++ + count = 0; + cpunr = 0; +- +- c2=NULL; + while (1) { + uint64_t C; + C = strtoull(c, &c2, 10); +@@ -78,11 +76,11 @@ void parse_proc_interrupts(void) + c=c2; + cpunr++; + } +- if (cpunr != core_count) ++ if (cpunr != core_count) + need_cpu_rescan = 1; +- ++ + set_interrupt_count(number, count); +- } ++ } + fclose(file); + free(line); + } +-- +1.6.5.2 + |