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| author | dg <dg@FreeBSD.org> | 1994-08-04 19:43:13 +0000 |
|---|---|---|
| committer | dg <dg@FreeBSD.org> | 1994-08-04 19:43:13 +0000 |
| commit | 92c719582bba1d40d15d5ee88ae8fb3f6077ebf0 (patch) | |
| tree | 6684a49278d21f45da6fb537c031b6a03bca60fb /sys | |
| parent | 89acf22c68f6481b15bd1014cb952af42f759760 (diff) | |
| download | FreeBSD-src-92c719582bba1d40d15d5ee88ae8fb3f6077ebf0.zip FreeBSD-src-92c719582bba1d40d15d5ee88ae8fb3f6077ebf0.tar.gz | |
Fixed bug that would cause free memory reserves to be depleted and cause a
panic in some cases.
Submitted by: John Dyson
Diffstat (limited to 'sys')
| -rw-r--r-- | sys/kern/vfs_bio.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/sys/kern/vfs_bio.c b/sys/kern/vfs_bio.c index b3e3c07..ff6311e 100644 --- a/sys/kern/vfs_bio.c +++ b/sys/kern/vfs_bio.c @@ -16,7 +16,7 @@ * 4. Modifications may be freely made to this file if the above conditions * are met. * - * $Id$ + * $Id: vfs_bio.c,v 1.4 1994/08/02 07:43:13 davidg Exp $ */ #include <sys/param.h> @@ -673,6 +673,10 @@ vm_hold_load_pages(vm_offset_t froma, vm_offset_t toa) { vm_offset_t pa; tryagain: + if (cnt.v_free_count <= cnt.v_free_reserved) { + VM_WAIT; + goto tryagain; + } p = vm_page_alloc(kernel_object, pg - VM_MIN_KERNEL_ADDRESS); if( !p) { VM_WAIT; |
