Re: [PATCH 4.9 00/96] 4.9.77-stable review

From: Naresh Kamboju
Date: Tue Jan 16 2018 - 06:19:19 EST


On 16 January 2018 at 11:23, Greg Kroah-Hartman
<gregkh@xxxxxxxxxxxxxxxxxxx> wrote:
> On Mon, Jan 15, 2018 at 04:03:06PM -0600, Dan Rue wrote:
>> On Mon, Jan 15, 2018 at 01:33:59PM +0100, Greg Kroah-Hartman wrote:
>> > This is the start of the stable review cycle for the 4.9.77 release.
>> > There are 96 patches in this series, all will be posted as a response
>> > to this one. If anyone has any issues with these being applied, please
>> > let me know.
>> >
>> > Responses should be made by Wed Jan 17 12:33:26 UTC 2018.
>> > Anything received after that time might be too late.
>> >
>> > The whole patch series can be found in one patch at:
>> > kernel.org/pub/linux/kernel/v4.x/stable-review/patch-4.9.77-rc1.gz
>> > or in the git tree and branch at:
>> > git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git linux-4.9.y
>> > and the diffstat can be found below.
>>
>> Results from Linaroâs test farm.
>> No regressions on arm64, arm and x86_64.
>
> Really? Did you test ebpf? If not, can you go and manually do that (I
> don't know if it's part of your skips), as it is important here...

We do not have selftests/bpf tests for 4.9
So running 4.14 version of bpf test cases on 4.9 kernel causing these failures.

bpf# ./test_tag
test_tag: test_ta[ 2947.456687] audit: type=1701
audit(1516100826.662:8): auid=4294967295 uid=0 gid=0 ses=4294967295
pid=2672 comm="test_6
g.c:111: tag_from_fdinfo: Assertion `!ret' failed.
Aborted (core dumped)

bpf# gdb ./test_tag
<>
test_tag: test_tag.c:111: tag_from_fdinfo: Assertion `!ret' failed.
Program received signal SIGABRT, Aborted.
0x0000ffffb7e96a00 in raise () from /lib64/libc.so.6

bpf# gdb ./test_lpm_map
Starting program: /opt/kselftests/mainline/bpf/test_lpm_map
test_lpm_map: test_lpm_map.c:191: test_lpm_map: Assertion `map >= 0' failed.
Program received signal SIGABRT, Aborted.
0x0000ffffb7e96a00 in raise () from /lib64/libc.so.6

The error log is same before and after the previous stable reviews.
We have old bugs on these issues,
LKFT: 4.4 and 4.9: kselftest: bpf: test_lpm_map: Assertion `map >= 0' failed
https://bugs.linaro.org/show_bug.cgi?id=3119
LKFT: 4.4 and 4.9: kselftest: bpf: test_lpm_map: Assertion `map >= 0' failed
https://bugs.linaro.org/show_bug.cgi?id=3116

- Naresh

>
> thanks,
>
> greg k-h
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