diff options
| author | Samuel Thibault <samuel.thibault@ens-lyon.org> | 2011-04-20 23:35:42 +0200 |
|---|---|---|
| committer | Samuel Thibault <samuel.thibault@ens-lyon.org> | 2011-04-20 23:40:16 +0200 |
| commit | 67d4e8403fe12592f99cf6fc51e4f33684899d6b (patch) | |
| tree | c4f8ed13d12ab04e067d396dd3c39b6afeadeb1a /vm | |
| parent | a44f51203c43bb4306a225506075740cdacaccfa (diff) | |
Warn once when part of the kernel is lacking memory
* kern/printf.h (printf_once): New macro.
* ipc/mach_port.c (mach_port_names, mach_port_get_set_status): Warn when
returning KERN_RESOURCE_SHORTAGE.
* vm/vm_kern.c: Include printf.h.
(kmem_alloc, kmem_realloc, kmem_alloc_wired, kmem_alloc_aligned,
kmem_alloc_pageable): Warn when failing.
* vm/vm_resident.c (vm_page_grab_contiguous_pages): Warn when returning
KERN_RESOURCE_SHORTAGE.
Diffstat (limited to 'vm')
| -rw-r--r-- | vm/vm_kern.c | 9 | ||||
| -rw-r--r-- | vm/vm_resident.c | 2 |
2 files changed, 10 insertions, 1 deletions
diff --git a/vm/vm_kern.c b/vm/vm_kern.c index dc7f7e4..cfa33ff 100644 --- a/vm/vm_kern.c +++ b/vm/vm_kern.c @@ -43,6 +43,7 @@ #include <kern/debug.h> #include <kern/lock.h> #include <kern/thread.h> +#include <kern/printf.h> #include <vm/pmap.h> #include <vm/vm_fault.h> #include <vm/vm_kern.h> @@ -387,6 +388,7 @@ kmem_alloc(map, addrp, size) kr = vm_map_find_entry(map, &addr, size, (vm_offset_t) 0, VM_OBJECT_NULL, &entry); if (kr != KERN_SUCCESS) { + printf_once("no more room for kmem_alloc in %p\n", map); vm_map_unlock(map); vm_object_deallocate(object); return kr; @@ -453,6 +455,7 @@ kern_return_t kmem_realloc(map, oldaddr, oldsize, newaddrp, newsize) VM_OBJECT_NULL, &newentry); if (kr != KERN_SUCCESS) { vm_map_unlock(map); + printf_once("no more room for kmem_realloc in %p\n", map); return kr; } @@ -537,6 +540,7 @@ kmem_alloc_wired(map, addrp, size) kr = vm_map_find_entry(map, &addr, size, (vm_offset_t) 0, kernel_object, &entry); if (kr != KERN_SUCCESS) { + printf_once("no more room for kmem_alloc_wired in %p\n", map); vm_map_unlock(map); return kr; } @@ -611,6 +615,7 @@ kmem_alloc_aligned(map, addrp, size) kr = vm_map_find_entry(map, &addr, size, size - 1, kernel_object, &entry); if (kr != KERN_SUCCESS) { + printf_once("no more rooom for kmem_alloc_aligned in %p\n", map); vm_map_unlock(map); return kr; } @@ -672,8 +677,10 @@ kmem_alloc_pageable(map, addrp, size) (vm_offset_t) 0, TRUE, VM_OBJECT_NULL, (vm_offset_t) 0, FALSE, VM_PROT_DEFAULT, VM_PROT_ALL, VM_INHERIT_DEFAULT); - if (kr != KERN_SUCCESS) + if (kr != KERN_SUCCESS) { + printf_once("no more room for kmem_alloc_pageable in %p\n", map); return kr; + } *addrp = addr; return KERN_SUCCESS; diff --git a/vm/vm_resident.c b/vm/vm_resident.c index b23e0f3..a633498 100644 --- a/vm/vm_resident.c +++ b/vm/vm_resident.c @@ -976,6 +976,7 @@ vm_page_grab_contiguous_pages( if ((vm_page_free_count < vm_page_free_reserved) || (vm_page_external_count >= vm_page_external_limit)) { + printf_once("no more room for vm_page_grab_contiguous_pages"); simple_unlock(&vm_page_queue_free_lock); return KERN_RESOURCE_SHORTAGE; } @@ -1064,6 +1065,7 @@ count_ones: */ simple_unlock(&vm_page_queue_free_lock); + printf_once("no contiguous room for vm_page_grab_contiguous_pages"); ret = KERN_RESOURCE_SHORTAGE; goto out; |