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o Make pv_maxchunks no less than maxproc. This helps to survive a

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forkbomb explosion.

Reviewed by:	alc
Security:	local DoS
X-MFC atfer:	RELENG_6 is not affected due to a different pv_entry
		allocation code.
This commit is contained in:
maxim 2006-11-16 11:46:24 +00:00
parent 0168d3765c
commit 11bd032934
1 changed files with 1 additions and 1 deletions
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2
sys/i386/i386/pmap.c
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@ -605,7 +605,7 @@ pmap_init(void)
pv_entry_max = roundup(pv_entry_max, _NPCPV);
pv_entry_high_water = 9 * (pv_entry_max / 10);
pv_maxchunks = pv_entry_max / _NPCPV;
pv_maxchunks = MAX(pv_entry_max / _NPCPV, maxproc);
pv_chunkbase = (struct pv_chunk *)kmem_alloc_nofault(kernel_map,
PAGE_SIZE * pv_maxchunks);
if (pv_chunkbase == NULL)