man pages section 9: DDI and DKI Kernel Functions

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Updated: July 2014



ddi_fm_ereport_post - post an FMA Protocol Error Report Event


#include <sys/ddifm.h>

void ddi_fm_ereport_post(dev_info_t *dip, char *ereport_class,
     uint64_t ena, int *sflag, ... /* name-value pair args */);

Interface Level

Solaris DDI specific (Solaris DDI)



Pointer to the dev_info structure


FMA Event Protocol error class


Error Numeric Association


Determines whether caller can sleep for memory or other event resources.


The ddi_fm_ereport_post() function causes an encoded fault management error report name-value pair list to be queued for delivery to the Fault Manager daemon, fmd(1M) . The sflag parameter indicates whether or not the caller is willing to wait for system memory and event channel resources to become available.

The following ereport_class strings are available for use by any leaf device driver:


A leaf driver discovers that the device is in an invalid or inconsistent state. For example, the driver might detect that receive or send ring descriptor indices are corrupted. It might also find an invalid value in a register or a driver-to-device protocol violation.


A leaf driver times out waiting for a response from the device. For example, timeouts can occur when no confirmation is seen after resetting, enabling, or disabling part of the device.


A leaf device sends too many consecutive interrupts with no work to do.


A leaf device reports to the driver that it has itself detected an internal correctable error.


A leaf device reports to the driver that it has itself detected an internal uncorrectable error.


A leaf driver determines that data transmission has stalled indefinitely.

The ena indicates the Format 1 Error Numeric Association for this error report. It might have already been initialized by another error-detecting software module. For example, if ddi_fm_ereport_post() is called from an error handler callback function, the fme_ena field from the passed-in ddi_fm_error argument should be used. Otherwise it should be set to 0 and will be initialized by ddi_fm_ereport_post().

    The name-value pair args variable argument list contains one or more (names, type, value pointer) nvpair tuples for non-array data_type_t types or one or more (name, type, number of elements, value pointer) tuples for data_type_t array types. There is one mandatory tuple to describe the ereport version. This should contain the following values:

  • name - FM_VERSION

  • type - DATA_TYPE_UINT8

  • value - FM_EREPORT_VERS0

Additional nvpair tuples can describe error conditions for logging purposes, but are not interpreted by the I/O framework or fault manager. The end of the argument list is specified by NULL.


The ddi_fm_ereport_post() function can be called from user, kernel, or high-level interrupt context.


See attributes(5) for descriptions of the following attributes:

Interface Stability

See also

fmd(1M), attributes(5), ddi_fm_service_impact(9F)