| commit | 63028aa7f581d9d4e6889f9dc06ded2534250a76 | |
| author | Kiyoshi Ueda <k-ueda@ct.jp.nec.com> | |
| Wed, 24 Aug 2005 22:03:43 +0000 (24 18:03 -0400) | ||
| committer | Tony Luck <tony.luck@intel.com> | |
| Tue, 6 Sep 2005 23:06:58 +0000 (6 16:06 -0700) | ||
| tree | 6167c2325aae1341161c41a1c9ce83e91fca2990 | treesnapshot (tar.gz zip) |
| parent | 4706df3d3c42af802597d82c8b1542c3d52eab23 | commitdiff |
[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>
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 | diffblobblamehistory |