02-17-2016
Swap completely used with memory free
I have a Solaris 10 VM that processes are seg faulting on (no space) and swap goes from 64GB to 151MB which triggers the seg fault. The free memory is 25GB when this occurs. I have adjusted the project to use all available ram. My question is why is swap being filled with 25GB remaining?
the project is default.
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LEARN ABOUT MOJAVE
ddi_dma_segtocookie
ddi_dma_segtocookie(9F) Kernel Functions for Drivers ddi_dma_segtocookie(9F)
NAME
ddi_dma_segtocookie - convert a DMA segment to a DMA address cookie
SYNOPSIS
#include <sys/ddi.h>
#include <sys/sunddi.h>
int ddi_dma_segtocookie(ddi_dma_seg_t seg, off_t *offp, off_t *lenp, ddi_dma_cookie_t *cookiep);
INTERFACE LEVEL
This interface is obsolete. ddi_dma_nextcookie(9F) should be used instead.
PARAMETERS
seg A DMA segment.
offp A pointer to an off_t. Upon a successful return, it is filled in with the offset. This segment is addressing within the
object.
lenp The byte length. This segment is addressing within the object.
cookiep A pointer to a DMA cookie (see ddi_dma_cookie(9S)).
DESCRIPTION
ddi_dma_segtocookie() takes a DMA segment and fills in the cookie pointed to by cookiep with the appropriate address, length, and bus type
to be used to program the DMA engine. ddi_dma_segtocookie() also fills in *offp and *lenp, which specify the range within the object.
RETURN VALUES
ddi_dma_segtocookie() returns:
DDI_SUCCESS Successfully filled in all values.
DDI_FAILURE Failed to successfully fill in all values.
CONTEXT
ddi_dma_segtocookie() can be called from user or interrupt context.
EXAMPLES
Example 1: ddi_dma_segtocookie() example
for (win = NULL; (retw = ddi_dma_nextwin(handle, win, &nwin)) !=
DDI_DMA_DONE; win = nwin) {
if (retw != DDI_SUCCESS) {
/* do error handling */
} else {
for (seg = NULL; (rets = ddi_dma_nextseg(nwin, seg, &nseg)) !=
DDI_DMA_DONE; seg = nseg) {
if (rets != DDI_SUCCESS) {
/* do error handling */
} else {
ddi_dma_segtocookie(nseg, &off, &len, &cookie);
/* program DMA engine */
}
}
}
}
ATTRIBUTES
See attributes(5) for a description of the following attributes:
+-----------------------------+-----------------------------+
| ATTRIBUTE TYPE | ATTRIBUTE VALUE |
+-----------------------------+-----------------------------+
|Stability Level |Obsolete |
+-----------------------------+-----------------------------+
SEE ALSO
attributes(5), ddi_dma_nextcookie(9F). ddi_dma_nextseg(9F), ddi_dma_nextwin(9F), ddi_dma_sync(9F), ddi_dma_cookie(9S)
Writing Device Drivers
SunOS 5.10 27 Sep 2002 ddi_dma_segtocookie(9F)