doc/cases/soft-inj_panic_npcc.txt

Overall:(8 cases)

- Test method
  * Preparation
    + Disable mcelog cron job
  * Add cases/soft-inj/panic_npcc/cases.sh into configuration file, and invoke
    a test driver on it.
- Common
  * Test script of test cases in this file can be found in
    cases/soft-inj/panic_npcc/cases.sh


1. fatal severity

- Objective:
  * Test severity comparison logic of MCE handler
- Code path tested:
  * do_machine_check()
  * mce_start()
  * mce_end()
  * mce_severity()
  * mce_regin() for_each_possible_loops loops(check mce-severity message)
  * mce_panic()
  * mce_log()
  * print_mce()
- Reference:
  * Inject data file: cases/soft-inj/panic_npcc/data/fatal_severity
- Expected result:
  * No warning or bug during kernel processing.
  * MCE records collected via kernel panic log is same as reference ones.
  * Kernel panic message is "Fatal Machine check"
  * Exception message is "Processor context corrupt"


2. uncorrected

- Objective:
  * Test MCE handler logic for EIPV MCE in kernel space
- Code path tested:
  * Same as falta severity
- Reference:
  * Inject data file: cases/soft-inj/panic_npcc/data/uncorrected
- Expected result:
  * No warning or bug during kernel processing.
  * MCE records collected via kernel panic log is same as reference ones.
  * Kernel panic message is "Fatal Machine check"
  * Exception message is "In kernel and no restart IP"


3. uncorrected timeout

- Objective:
  * Test MCE handler timeout logic for EIPV MCE in kernel space
- Code path tested:
  * do_machine_check()
  * mce_start() until timeout
  * mce_severity()
  * mce_panic("Fatal machine check on current CPU", )
  * mce_log()
  * print_mce()
- Reference:
  * Inject data file: cases/soft-inj/panic_npcc/data/uncorrected_timeout
- Expected result:
  * No warning or bug during kernel processing.
  * MCE records collected via kernel panic log is same as reference ones.
  * Kernel panic message is "Fatal machine check on current CPU"
  * Exception message is "In kernel and no restart IP"
  * Timeout message is "Some CPUs didn't answer in synchronization"


4. uncorrected without MCIP

- Objective:
  * Test MCE handler logic for MCE without PCC, MCIP, EIPV and RIPV
- Code path tested:
  * Same as fatal severity
- Reference:
  * Inject data file: cases/soft-inj/panic_npcc/data/uncorrected_no_mcip
- Expected result:
  * No warning or bug during kernel processing.
  * MCE records collected via kernel panic log is same as reference ones.
  * Kernel panic message is "Fatal Machine check"
  * Exception message is "MCIP not set in MCA handler"


5. uncorrect timeout without MCIP

- Objective:
  * Test MCE handler timeout logic for MCE without PCC, MCIP, EIPV and RIPV
- Code path tested:
  * Same as uncorrected timeout
- Reference:
  * Inject data file: cases/soft-inj/panic_npcc/data/uncorrected_no_mcip_timeout
- Expected result:
  * No warning or bug during kernel processing.
  * MCE records collected via kernel panic log is same as reference ones.
  * Kernel panic message is "Fatal machine check on current CPU"
  * Kernel panic message is "MCIP not set in MCA handler"
  * Timeout message is "Some CPUs didn't answer in synchronization"


6. uncorrected without EIPV and RIPV

- Objective:
  * Test MCE handler logic for EIPV and RIPV MCE in kernel space
- Code path tested:
  * Same as uncorrected
- Reference:
  * Inject data file: cases/soft-inj/panic_npcc/data/uncorrected_no_eripv
- Expected result:
  * No warning or bug during kernel processing.
  * MCE records collected via kernel panic log is same as reference ones.
  * Kernel panic message is "Fatal Machine check"
  * Exception message is "Neither restart nor error IP"


7. uncorrected timeout without EIPV and RIPV

- Objective:
  * Test MCE handler timout logic for EIPV|RIPV MCE in kernel space
- Code path tested:
  * Same as uncorrected timeout
- Reference:
  * Inject data file: cases/soft-inj/panic_npcc/data/uncorrected_no_eripv_timeout
- Expected result:
  * No warning or bug during kernel processing.
  * MCE records collected via kernel panic log is same as reference ones.
  * Kernel panic message is "Fatal Machine check"
  * Exception message is "In kernel and no restart IP"
  * Timeout message is "Some CPUs didn't answer in synchronization"


8. unknown

- Objective:
  * Test logic for MCE from unknown source (external?)
- Code path tested:
  * mce_reign(), mce_panic("Machine check from unknown source") branch
  * Others are same as fatal severity
- Reference:
  * Inject data file: cases/soft-inj/panic_npcc/data/unknown
- Expected result:
  * No warning or bug during kernel processing.
  * Kernel panic message is "Machine check from unknown source"
  * No exception and timeout message.