On Tue, Feb 06, 2018 at 04:42:13PM -0800, Gleb Smirnoff wrote:
T> Hi Peter,
T>
T> can you please try this patch? In either case success
T> or not, please provide me with dmesg. Thanks a lot!
Sorry, patch was missing one file. 99.9% this is a no-op,
but better use full patch.
--
Gleb Smirnoff
Index: sys/kern/subr_vmem.c
===================================================================
--- sys/kern/subr_vmem.c (revision 328955)
+++ sys/kern/subr_vmem.c (working copy)
@@ -667,7 +667,8 @@ int
vmem_startup_count(void)
{
- return (howmany(BT_MAXALLOC, UMA_SLAB_SIZE / sizeof(struct vmem_btag)));
+ return (howmany(BT_MAXALLOC,
+ UMA_SLAB_SPACE / sizeof(struct vmem_btag)));
}
#endif
Index: sys/vm/uma_core.c
===================================================================
--- sys/vm/uma_core.c (revision 328955)
+++ sys/vm/uma_core.c (working copy)
@@ -96,6 +96,7 @@ __FBSDID("$FreeBSD$");
#ifdef DEBUG_MEMGUARD
#include <vm/memguard.h>
#endif
+#define DIAGNOSTIC
/*
* This is the zone and keg from which all zones are spawned.
@@ -1800,6 +1801,7 @@ uma_startup_count(int zones)
/* Memory for the zone of zones and zone of kegs. */
pages = howmany(roundup(zsize, CACHE_LINE_SIZE) * 2 +
roundup(ksize, CACHE_LINE_SIZE), PAGE_SIZE);
+ printf("boot_pages master %d\n", pages);
zones += UMA_BOOT_ZONES;
@@ -1807,17 +1809,20 @@ uma_startup_count(int zones)
if (zsize > UMA_SLAB_SIZE)
pages += zones * howmany(zsize, UMA_SLAB_SIZE);
else
- pages += howmany(zones, UMA_SLAB_SIZE / zsize);
+ pages += howmany(zones, UMA_SLAB_SPACE / zsize);
+ printf("boot_pages zones %d\n", pages);
/* ... and their kegs. */
- pages += howmany(zones, UMA_SLAB_SIZE / ksize);
+ pages += howmany(zones, UMA_SLAB_SPACE / ksize);
+ printf("boot_pages kegs %d\n", pages);
/*
* Take conservative approach that every zone
* is going to allocate hash.
*/
- pages += howmany(zones, UMA_SLAB_SIZE /
+ pages += howmany(zones, UMA_SLAB_SPACE /
(sizeof(struct slabhead *) * UMA_HASH_SIZE_INIT));
+ printf("boot_pages hash %d\n", pages);
return (pages);
}
Index: sys/vm/uma_int.h
===================================================================
--- sys/vm/uma_int.h (revision 328955)
+++ sys/vm/uma_int.h (working copy)
@@ -138,6 +138,11 @@
#define UMA_MAX_WASTE 10
/*
+ * Size of memory in a not offpage slab available for actual items.
+ */
+#define UMA_SLAB_SPACE (UMA_SLAB_SIZE - sizeof(struct uma_slab))
+
+/*
* I doubt there will be many cases where this is exceeded. This is the initial
* size of the hash table for uma_slabs that are managed off page. This hash
* does expand by powers of two. Currently it doesn't get smaller.
Index: sys/vm/vm_page.c
===================================================================
--- sys/vm/vm_page.c (revision 328955)
+++ sys/vm/vm_page.c (working copy)
@@ -518,8 +518,11 @@ vm_page_startup(vm_offset_t vaddr)
/* vmem_startup() calls uma_prealloc(). */
boot_pages += vmem_startup_count();
+ printf("boot_pages vmem %d\n", boot_pages);
/* vm_map_startup() calls uma_prealloc(). */
- boot_pages += howmany(MAX_KMAP, UMA_SLAB_SIZE / sizeof(struct vm_map));
+ boot_pages += howmany(MAX_KMAP,
+ UMA_SLAB_SPACE / sizeof(struct vm_map));
+ printf("boot_pages kmap %d\n", boot_pages);
/*
* Before going fully functional kmem_init() does allocation
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