Ignore:
Timestamp:
Jun 26, 2019, 11:42:37 AM (15 months ago)
Author:
alain
Message:

This version is a major evolution: The physical memory allocators,
defined in the kmem.c, ppm.c, and kcm.c files have been modified
to support remote accesses. The RPCs that were previously user
to allocate physical memory in a remote cluster have been removed.
This has been done to cure a dead-lock in case of concurrent page-faults.

This version 2.2 has been tested on a (4 clusters / 2 cores per cluster)
TSAR architecture, for both the "sort" and the "fft" applications.

File:
1 edited

Legend:

Unmodified
Added
Removed
  • trunk/kernel/kern/chdev.c

    r625 r635  
    9090
    9191    // allocate memory for chdev
    92     req.type   = KMEM_DEVICE;
    93     req.flags  = AF_ZERO;
    94     chdev      = (chdev_t *)kmem_alloc( &req );
     92    req.type   = KMEM_KCM;
     93    req.order  = bits_log2( sizeof(chdev_t) );
     94    req.flags  = AF_ZERO | AF_KERNEL;
     95    chdev      = kmem_alloc( &req );
    9596
    9697    if( chdev == NULL ) return NULL;
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