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SubjectRe: [PATCH] x86_32, entry, selftests: Add a selftest for kernel entries from vm86 mode
On 06/01/2015 04:54 PM, Andy Lutomirski wrote:
> On Mon, Jun 1, 2015 at 9:02 AM, Shuah Khan <shuahkh@osg.samsung.com> wrote:
>> On 05/29/2015 03:58 PM, Andy Lutomirski wrote:
>>> Test a couple of special cases in 32-bit kernels for entries from
>>> vm86 mode. This will OOPS both old kernels due to a bug and and
>>> 4.1-rc5 due to a regression I introduced, and it should make sure
>>> that the SYSENTER-from-vm86-mode hack in the kernel keeps working.
>>>
>>> Tests: 394838c96013 x86/asm/entry/32: Fix user_mode() misuses
>>> Tests: 7ba554b5ac69 x86/asm/entry/32: Really make user_mode() work correctly for VM86 mode
>>> Signed-off-by: Andy Lutomirski <luto@kernel.org>
>>> ---
>>>
>>> Ingo, Shuah: I think this should go in through -tip. (In general, I think
>>> new x86 tests that don't have interesting interactions with the kselftest
>>> infrastructure should go in through -tip, especially tests such as this one
>>> that are related to recent regressions.)
>>
>> No problem going through tip. Could you please make sure
>>
>> "make kselftest" run from top level and
>> tools/testing/selftests/kselftest_install.sh
>>
>> don't break?
>
> Both 'make kselftest -j12 TARGETS=x86' and
> ../../../tools/testing/selftests/kselftest_install.sh work for me.
> (The .. thing is annoying -- would it make sense to fix it to work
> from the kernel tree root?)
>

What is annoying about it and how would it get solved by making it
run from the kernel tree root?

-- Shuah


--
Shuah Khan
Sr. Linux Kernel Developer
Open Source Innovation Group
Samsung Research America (Silicon Valley)
shuahkh@osg.samsung.com | (970) 217-8978


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