diff options
Diffstat (limited to 'Documentation/admin-guide')
| -rw-r--r-- | Documentation/admin-guide/kernel-parameters.txt | 16 | ||||
| -rw-r--r-- | Documentation/admin-guide/ras.rst | 20 |
2 files changed, 27 insertions, 9 deletions
diff --git a/Documentation/admin-guide/kernel-parameters.txt b/Documentation/admin-guide/kernel-parameters.txt index cfbb3fc938f7..635d11135090 100644 --- a/Documentation/admin-guide/kernel-parameters.txt +++ b/Documentation/admin-guide/kernel-parameters.txt @@ -549,15 +549,6 @@ loops can be debugged more effectively on production systems. - clocksource.arm_arch_timer.fsl-a008585= - [ARM64] - Format: <bool> - Enable/disable the workaround of Freescale/NXP - erratum A-008585. This can be useful for KVM - guests, if the guest device tree doesn't show the - erratum. If unspecified, the workaround is - enabled based on the device tree. - clearcpuid=BITNUM [X86] Disable CPUID feature X for the kernel. See arch/x86/include/asm/cpufeatures.h for the valid bit @@ -3278,6 +3269,13 @@ Lazy RCU callbacks are those which RCU can prove do nothing more than free memory. + rcutree.rcu_kick_kthreads= [KNL] + Cause the grace-period kthread to get an extra + wake_up() if it sleeps three times longer than + it should at force-quiescent-state time. + This wake_up() will be accompanied by a + WARN_ONCE() splat and an ftrace_dump(). + rcuperf.gp_exp= [KNL] Measure performance of expedited synchronous grace-period primitives. diff --git a/Documentation/admin-guide/ras.rst b/Documentation/admin-guide/ras.rst index d71340e86c27..9939348bd4a3 100644 --- a/Documentation/admin-guide/ras.rst +++ b/Documentation/admin-guide/ras.rst @@ -438,11 +438,13 @@ A typical EDAC system has the following structure under │ │ ├── ce_count │ │ ├── ce_noinfo_count │ │ ├── dimm0 + │ │ │ ├── dimm_ce_count │ │ │ ├── dimm_dev_type │ │ │ ├── dimm_edac_mode │ │ │ ├── dimm_label │ │ │ ├── dimm_location │ │ │ ├── dimm_mem_type + │ │ │ ├── dimm_ue_count │ │ │ ├── size │ │ │ └── uevent │ │ ├── max_location @@ -457,11 +459,13 @@ A typical EDAC system has the following structure under │ │ ├── ce_count │ │ ├── ce_noinfo_count │ │ ├── dimm0 + │ │ │ ├── dimm_ce_count │ │ │ ├── dimm_dev_type │ │ │ ├── dimm_edac_mode │ │ │ ├── dimm_label │ │ │ ├── dimm_location │ │ │ ├── dimm_mem_type + │ │ │ ├── dimm_ue_count │ │ │ ├── size │ │ │ └── uevent │ │ ├── max_location @@ -483,6 +487,22 @@ this ``X`` memory module: This attribute file displays, in count of megabytes, the memory that this csrow contains. +- ``dimm_ue_count`` - Uncorrectable Errors count attribute file + + This attribute file displays the total count of uncorrectable + errors that have occurred on this DIMM. If panic_on_ue is set + this counter will not have a chance to increment, since EDAC + will panic the system. + +- ``dimm_ce_count`` - Correctable Errors count attribute file + + This attribute file displays the total count of correctable + errors that have occurred on this DIMM. This count is very + important to examine. CEs provide early indications that a + DIMM is beginning to fail. This count field should be + monitored for non-zero values and report such information + to the system administrator. + - ``dimm_dev_type`` - Device type attribute file This attribute file will display what type of DRAM device is |