[IA64] Fix unaligned handler for floating point instructions with base update
The compiler team did the hard work for this distilling a problem in
large fortran application which showed up when applied to a 290MB input
data set down to this instruction:
ldfd f34=[r17],-8
Which they noticed incremented r17 by 0x10 rather than decrementing it
by 8 when the value in r17 caused an unaligned data fault. I tracked
it down to some bad instruction decoding in unaligned.c. The code
assumes that the 'x' bit can determine whether the instruction is
an "ldf" or "ldfp" ... which it is for opcode=6 (see table 4-29 on
page 3:302 of the SDM). But for opcode=7 the 'x' bit is irrelevent,
all variants are "ldf" instructions (see table 4-36 on page 3:306).
Note also that interpreting the instruction as "ldfp" means that the
"paired" floating point register (f35 in the example here) will also
be corrupted.
Signed-off-by: Tony Luck <email address hidden>
Signed-off-by: Adrian Bunk <email address hidden>
2f586e5...
by
Ian Pickworth <email address hidden>
V4L/DVB (3393): Cx88: reduce excessive logging
- fix temporary debug code by changing printk to dprintk at level 1.
- move CORE_IOCTL messages from level 1 to level 2.
- this should help with selective debugging,
while not filling people's logs up during normal use.
Signed-off-by: Ian Pickworth <email address hidden>
Signed-off-by: Michael Krufky <email address hidden>
Signed-off-by: Mauro Carvalho Chehab <email address hidden>
Signed-off-by: Adrian Bunk <email address hidden>
If prepare_write fails with AOP_TRUNCATED_PAGE, or if commit_write fails, then
we may have failed the write operation despite prepare_write having
instantiated blocks past i_size. Fix this, and consolidate the trimming into
one place.
Signed-off-by: Nick Piggin <email address hidden>
Signed-off-by: Adrian Bunk <email address hidden>
USB: remove short initial timeout for device descriptor fetch
This patch (as905) removes a micro-optimization from the hub port
initialization code. Previously we had been using a short timeout on
the first attempt the read the device descriptor; now we will use the
standard timeout length.
It's not clear that the short timeout ever provided any benefit. And
now we know of one case where it actually hurts: The device can't meet
the short timeout and then it gets terminally confused.
This fixes Bugzilla #8444.
Signed-off-by: Alan Stern <email address hidden>
Signed-off-by: Greg Kroah-Hartman <email address hidden>
Signed-off-by: Adrian Bunk <email address hidden>
30cf9e8...
by
Ivan Kokshaysky <email address hidden>
alpha: build fixes - force architecture
Override compiler .arch directive for generic kernel build.
Signed-off-by: Ivan Kokshaysky <email address hidden>
Signed-off-by: Richard Henderson <email address hidden>
Signed-off-by: Adrian Bunk <email address hidden>
63278e9...
by
Ivan Kokshaysky <email address hidden>
moduleparam: fix alpha, ia64 and ppc64 compile failures
On alpha, ia64 and ppc64 only relocations to local data can go into
read-only sections. The vast majority of module parameters use the global
generic param_set_*/param_get_* functions, so the 'const' attribute for
struct kernel_param is not only useless, but it also causes compile
failures due to 'section type conflict' in those rare cases where
param_set/get are local functions.
