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[201911] Add hardware reboot cause when software reboot failed (#11753)

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Why I did it
Add the hardware reboot cause when the previous software reboot failed

How I did it
Check both hardware reboot cause and software reboot cause.
Add the hardware reboot as actual reboot cause
if any hardware reboot cause is available for any software reboot.

How to verify it
Perform reboots and verify the reboot-cause
This commit is contained in:
Sujin Kang 2022-08-25 12:30:53 -07:00 committed by GitHub
parent 0a7570000c
commit 61a34fcf22
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GPG Key ID: 4AEE18F83AFDEB23
1 changed files with 24 additions and 9 deletions
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33
files/image_config/process-reboot-cause/process-reboot-cause
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@ -36,6 +36,7 @@ REBOOT_TYPE_KEXEC_PATTERN_WARM = ".*SONIC_BOOT_TYPE=(warm|fastfast).*"
REBOOT_TYPE_KEXEC_PATTERN_FAST = ".*SONIC_BOOT_TYPE=(fast|fast-reboot).*" REBOOT_TYPE_KEXEC_PATTERN_FAST = ".*SONIC_BOOT_TYPE=(fast|fast-reboot).*"
REBOOT_CAUSE_UNKNOWN = "Unknown" REBOOT_CAUSE_UNKNOWN = "Unknown"
REBOOT_CAUSE_NON_HARDWARE = "Non-Hardware"
# Global logger class instance # Global logger class instance
@ -154,16 +155,30 @@ def main():
software_reboot_cause = find_software_reboot_cause() software_reboot_cause = find_software_reboot_cause()
# The main decision logic of the reboot cause: # The main decision logic of the reboot cause:
# If there is a reboot cause indicated by /proc/cmdline, it should be warmreboot/fastreboot # If there is a valid hardware reboot cause indicated by platform API,
# the software_reboot_cause which is the content of /hosts/reboot-cause/reboot-cause.txt # check the software reboot cause to add additional rebot cause.
# will be treated as the reboot cause # If there is a reboot cause indicated by /proc/cmdline, and/or warmreboot/fastreboot/softreboot
# Elif there is a reboot cause indicated by platform API, # the software_reboot_cause which is the content of /hosts/reboot-cause/reboot-cause.txt
# the hardware_reboot_cause will be treated as the reboot cause # will be treated as the additional reboot cause
# Elif there is a cmdline reboot cause,
# the software_reboot_cause will be treated as the reboot cause if it's not unknown
# otherwise, the cmdline_reboot_cause will be treated as the reboot cause if it's not none
# Else the software_reboot_cause will be treated as the reboot cause # Else the software_reboot_cause will be treated as the reboot cause
if proc_cmdline_reboot_cause is not None: if hardware_reboot_cause is not None:
previous_reboot_cause = software_reboot_cause # Check if any software reboot was issued before this hardware reboot happened
elif hardware_reboot_cause is not None: if REBOOT_CAUSE_UNKNOWN not in software_reboot_cause:
previous_reboot_cause = hardware_reboot_cause # Add the hardware_reboot_cause as actual reboot cause
previous_reboot_cause = software_reboot_cause + " Actual reboot cause : " + hardware_reboot_cause
elif proc_cmdline_reboot_cause is not None:
previous_reboot_cause = proc_cmdline_reboot_cause + " Actual reboot cause : " + hardware_reboot_cause
else:
previous_reboot_cause = hardware_reboot_cause
elif proc_cmdline_reboot_cause is not None:
if REBOOT_CAUSE_UNKNOWN not in software_reboot_cause:
# Get the reboot cause from REBOOT_CAUSE_FILE
previous_reboot_cause = software_reboot_cause
else:
previous_reboot_cause = proc_cmdline_reboot_cause
else: else:
previous_reboot_cause = software_reboot_cause previous_reboot_cause = software_reboot_cause