Differences

This shows you the differences between two versions of the page.

--- proc:interrupts_file [2017/04/06 10:44] – created peter
+++ proc:interrupts_file [2020/07/15 09:30] (current) – external edit 127.0.0.1
@@ Line 56: / Line 56: @@
   * **THR** interrupt raised when a machine check threshold counter (typically counting ECC corrected errors of memory or cache) exceeds a configurable threshold.  Only available on some systems.
-  * TRM** a thermal event interrupt occurs when a temperature threshold has been exceeded for the CPU.  This interrupt may also be generated when the temperature drops back to normal.
+  * **TRM** a thermal event interrupt occurs when a temperature threshold has been exceeded for the CPU.  This interrupt may also be generated when the temperature drops back to normal.
-  * SPU** a spurious interrupt is some interrupt that was raised then lowered by some IO device before it could be fully processed by the APIC.  Hence the APIC sees the interrupt but does not know what device it came from.  For this case the APIC will generate the interrupt with a IRQ vector of 0xff. This might also be generated by chipset bugs.
+  * **SPU** a spurious interrupt is some interrupt that was raised then lowered by some IO device before it could be fully processed by the APIC.  Hence the APIC sees the interrupt but does not know what device it came from.  For this case the APIC will generate the interrupt with a IRQ vector of 0xff. This might also be generated by chipset bugs.
   * **RES**, **CAL**, **TLB** rescheduling, call and TLB flush interrupts are sent from one CPU to another per the needs of the OS.  Typically, their statistics are used by kernel developers and interested users to determine the occurrence of interrupts of the given type.