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(parent: 4706df3) | patch
[IA64] page_not_present fault in region 5 is normal
authorKiyoshi Ueda <k-ueda@ct.jp.nec.com>
Wed, 24 Aug 2005 22:03:43 +0000 (18:03 -0400)
committerTony Luck <tony.luck@intel.com>
Tue, 6 Sep 2005 23:06:58 +0000 (16:06 -0700)
commit63028aa7f581d9d4e6889f9dc06ded2534250a76
tree6167c2325aae1341161c41a1c9ce83e91fca2990tree | snapshot (tar.gz zip)
parent4706df3d3c42af802597d82c8b1542c3d52eab23commit | diff
[IA64] page_not_present fault in region 5 is normal

When copying data from user-space to kernel-space by __copy_user(),
a page_not_present fault sometimes occurs at vmalloced kernel address
because of VHPT pre-fetching.

Ignore the page_not_present fault in ia64_do_page_fault() before
jumping into exception handlers.

Signed-off-by: Kiyoshi Ueda <k-ueda@ct.jp.nec.com>
Signed-off-by: Jun'ichi Nomura <j-nomura@ce.jp.nec.com>
Signed-off-by: Tony Luck <tony.luck@intel.com>
arch/ia64/mm/fault.c diff | blob | blame | history