kernel_optimize_test/include
Kenji Kaneshige ffa71f33a8 x86, ioremap: Fix incorrect physical address handling in PAE mode
Current x86 ioremap() doesn't handle physical address higher than
32-bit properly in X86_32 PAE mode. When physical address higher than
32-bit is passed to ioremap(), higher 32-bits in physical address is
cleared wrongly. Due to this bug, ioremap() can map wrong address to
linear address space.

In my case, 64-bit MMIO region was assigned to a PCI device (ioat
device) on my system. Because of the ioremap()'s bug, wrong physical
address (instead of MMIO region) was mapped to linear address space.
Because of this, loading ioatdma driver caused unexpected behavior
(kernel panic, kernel hangup, ...).

Signed-off-by: Kenji Kaneshige <kaneshige.kenji@jp.fujitsu.com>
LKML-Reference: <4C1AE680.7090408@jp.fujitsu.com>
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
2010-07-09 11:42:03 -07:00
..
acpi Merge branch 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-acpi-2.6 2010-05-28 14:42:18 -07:00
asm-generic Merge branch 'for-35' of git://repo.or.cz/linux-kbuild 2010-06-01 08:55:52 -07:00
crypto
drm drm/radeon/kms/evergreen: set accel_enabled 2010-06-08 09:34:42 +10:00
keys
linux x86, ioremap: Fix incorrect physical address handling in PAE mode 2010-07-09 11:42:03 -07:00
math-emu
media V4L/DVB: saa7134: add RM-K6 remote control support for Avermedia M135A 2010-06-01 01:22:09 -03:00
mtd
net net: check for refcount if pop a stacked dst_entry 2010-06-04 15:56:00 -07:00
pcmcia
rdma IB/core: Allow device-specific per-port sysfs files 2010-05-21 10:34:44 -07:00
rxrpc
scsi SCSI: implement sd_unlock_native_capacity() 2010-06-02 13:50:04 -04:00
sound Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6 2010-05-20 09:41:44 -07:00
trace Merge branch 'perf-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip 2010-06-10 09:30:09 -07:00
video fbdev: move FBIO_WAITFORVSYNC to linux/fb.h 2010-05-25 08:07:09 -07:00
xen
Kbuild