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Diffstat (limited to 'Documentation/ramoops.txt')
| -rw-r--r-- | Documentation/ramoops.txt | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/Documentation/ramoops.txt b/Documentation/ramoops.txt index 470d2c4db6ff..4ba7db231cb2 100644 --- a/Documentation/ramoops.txt +++ b/Documentation/ramoops.txt @@ -30,6 +30,11 @@ variable while setting 0 in that variable dumps only the panics. The module uses a counter to record multiple dumps but the counter gets reset on restart (i.e. new dumps after the restart will overwrite old ones). +Ramoops also supports software ECC protection of persistent memory regions. +This might be useful when a hardware reset was used to bring the machine back +to life (i.e. a watchdog triggered). In such cases, RAM may be somewhat +corrupt, but usually it is restorable. + 2. Setting the parameters Setting the ramoops parameters can be done in 2 different manners: @@ -46,6 +51,7 @@ static struct ramoops_platform_data ramoops_data = { .mem_address = <...>, .record_size = <...>, .dump_oops = <...>, + .ecc = <...>, }; static struct platform_device ramoops_dev = { |