diff options
Diffstat (limited to 'Documentation/x86_64/machinecheck')
| -rw-r--r-- | Documentation/x86_64/machinecheck | 14 |
1 files changed, 8 insertions, 6 deletions
diff --git a/Documentation/x86_64/machinecheck b/Documentation/x86_64/machinecheck index feaeaf6f6e4d..a05e58e7b159 100644 --- a/Documentation/x86_64/machinecheck +++ b/Documentation/x86_64/machinecheck @@ -49,12 +49,14 @@ tolerant Since machine check exceptions can happen any time it is sometimes risky for the kernel to kill a process because it defies normal kernel locking rules. The tolerance level configures - how hard the kernel tries to recover even at some risk of deadlock. - - 0: always panic, - 1: panic if deadlock possible, - 2: try to avoid panic, - 3: never panic or exit (for testing only) + how hard the kernel tries to recover even at some risk of + deadlock. Higher tolerant values trade potentially better uptime + with the risk of a crash or even corruption (for tolerant >= 3). + + 0: always panic on uncorrected errors, log corrected errors + 1: panic or SIGBUS on uncorrected errors, log corrected errors + 2: SIGBUS or log uncorrected errors, log corrected errors + 3: never panic or SIGBUS, log all errors (for testing only) Default: 1 |