[linux-next:master] [bpf/tests] daabb2b098: kernel-selftests.net.test_bpf.sh.fail

[linux-next:master] [bpf/tests] daabb2b098: kernel-selftests.net.test_bpf.sh.fail

[kernel test robot]

hi, Puranjay Mohan,

we reported same issue when this commit is a review patch as:
https://lore.kernel.org/all/202309261451.8934f9ad-oliver.sang@intel.com/

now we noticed this commit is in linux-next/master and we still observed
failure.

is there any requirements to run new tests? Thanks


Hello,

kernel test robot noticed "kernel-selftests.net.test_bpf.sh.fail" on:

commit: daabb2b098e04753fa3d1b1feed13e5a61bef61c ("bpf/tests: add tests for cpuv4 instructions")
https://git.kernel.org/cgit/linux/kernel/git/next/linux-next.git master

[test failed on linux-next/master 719136e5c24768ebdf80b9daa53facebbdd377c3]

in testcase: kernel-selftests
version: kernel-selftests-x86_64-60acb023-1_20230329
with following parameters:

	group: net



compiler: gcc-12
test machine: 36 threads 1 sockets Intel(R) Core(TM) i9-10980XE CPU @ 3.00GHz (Cascade Lake) with 32G memory

(please refer to attached dmesg/kmsg for entire log/backtrace)



If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <oliver.sang@intel.com>
| Closes: https://lore.kernel.org/oe-lkp/202310111838.46ff5b6a-oliver.sang@intel.com



....
# timeout set to 1500
# selftests: net: test_bpf.sh
# test_bpf: [FAIL]
not ok 13 selftests: net: test_bpf.sh # exit=1
....



The kernel config and materials to reproduce are available at:
https://download.01.org/0day-ci/archive/20231011/202310111838.46ff5b6a-oliver.sang@intel.com



-- 
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki

Re: [linux-next:master] [bpf/tests] daabb2b098: kernel-selftests.net.test_bpf.sh.fail

[Puranjay Mohan]

On Wed, Oct 11, 2023 at 3:20 PM kernel test robot <oliver.sang@intel.com> wrote:
>
>
> hi, Puranjay Mohan,
>
> we reported same issue when this commit is a review patch as:
> https://lore.kernel.org/all/202309261451.8934f9ad-oliver.sang@intel.com/
>
> now we noticed this commit is in linux-next/master and we still observed
> failure.
>
> is there any requirements to run new tests? Thanks
>
>
> Hello,
>
> kernel test robot noticed "kernel-selftests.net.test_bpf.sh.fail" on:
>
> commit: daabb2b098e04753fa3d1b1feed13e5a61bef61c ("bpf/tests: add tests for cpuv4 instructions")
> https://git.kernel.org/cgit/linux/kernel/git/next/linux-next.git master
>
> [test failed on linux-next/master 719136e5c24768ebdf80b9daa53facebbdd377c3]
>
> in testcase: kernel-selftests
> version: kernel-selftests-x86_64-60acb023-1_20230329
> with following parameters:
>
>         group: net
>
>
>
> compiler: gcc-12
> test machine: 36 threads 1 sockets Intel(R) Core(TM) i9-10980XE CPU @ 3.00GHz (Cascade Lake) with 32G memory
>
> (please refer to attached dmesg/kmsg for entire log/backtrace)
>
>
>
> If you fix the issue in a separate patch/commit (i.e. not just a new version of
> the same patch/commit), kindly add following tags
> | Reported-by: kernel test robot <oliver.sang@intel.com>
> | Closes: https://lore.kernel.org/oe-lkp/202310111838.46ff5b6a-oliver.sang@intel.com
>
>
>
> ....
> # timeout set to 1500
> # selftests: net: test_bpf.sh
> # test_bpf: [FAIL]
> not ok 13 selftests: net: test_bpf.sh # exit=1
> ....

The test "ALU_MOVSX | BPF_W" is failing for x86_64. This is a new test
added by my patch.
This is how the test looks:
{
                "ALU_MOVSX | BPF_W",
                .u.insns_int = {
                        BPF_LD_IMM64(R2, 0x00000000deadbeefLL),
                        BPF_LD_IMM64(R3, 0xdeadbeefdeadbeefLL),
                        BPF_MOVSX32_REG(R1, R3, 32),
                        BPF_JMP_REG(BPF_JEQ, R2, R1, 2),
                        BPF_MOV32_IMM(R0, 2),
                        BPF_EXIT_INSN(),
                        BPF_MOV32_IMM(R0, 1),
                        BPF_EXIT_INSN(),
                },
                INTERNAL,
                { },
                { { 0, 0x1 } },
 }

I am creating a build for testing on my end.

>
>
>
> The kernel config and materials to reproduce are available at:
> https://download.01.org/0day-ci/archive/20231011/202310111838.46ff5b6a-oliver.sang@intel.com
>
>
>
> --
> 0-DAY CI Kernel Test Service
> https://github.com/intel/lkp-tests/wiki
>

Thanks,
Puranjay

Re: [linux-next:master] [bpf/tests] daabb2b098: kernel-selftests.net.test_bpf.sh.fail

[Puranjay Mohan]

Hi Yonghong,

On Wed, Oct 11, 2023 at 4:01 PM Puranjay Mohan <puranjay12@gmail.com> wrote:
>
> On Wed, Oct 11, 2023 at 3:20 PM kernel test robot <oliver.sang@intel.com> wrote:
> >
> >
> > hi, Puranjay Mohan,
> >
> > we reported same issue when this commit is a review patch as:
> > https://lore.kernel.org/all/202309261451.8934f9ad-oliver.sang@intel.com/
> >
> > now we noticed this commit is in linux-next/master and we still observed
> > failure.
> >
> > is there any requirements to run new tests? Thanks
> >
> >
> > Hello,
> >
> > kernel test robot noticed "kernel-selftests.net.test_bpf.sh.fail" on:
> >
> > commit: daabb2b098e04753fa3d1b1feed13e5a61bef61c ("bpf/tests: add tests for cpuv4 instructions")
> > https://git.kernel.org/cgit/linux/kernel/git/next/linux-next.git master
> >
> > [test failed on linux-next/master 719136e5c24768ebdf80b9daa53facebbdd377c3]
> >
> > in testcase: kernel-selftests
> > version: kernel-selftests-x86_64-60acb023-1_20230329
> > with following parameters:
> >
> >         group: net
> >
> >
> >
> > compiler: gcc-12
> > test machine: 36 threads 1 sockets Intel(R) Core(TM) i9-10980XE CPU @ 3.00GHz (Cascade Lake) with 32G memory
> >
> > (please refer to attached dmesg/kmsg for entire log/backtrace)
> >
> >
> >
> > If you fix the issue in a separate patch/commit (i.e. not just a new version of
> > the same patch/commit), kindly add following tags
> > | Reported-by: kernel test robot <oliver.sang@intel.com>
> > | Closes: https://lore.kernel.org/oe-lkp/202310111838.46ff5b6a-oliver.sang@intel.com
> >
> >
> >
> > ....
> > # timeout set to 1500
> > # selftests: net: test_bpf.sh
> > # test_bpf: [FAIL]
> > not ok 13 selftests: net: test_bpf.sh # exit=1
> > ....
>
> The test "ALU_MOVSX | BPF_W" is failing for x86_64. This is a new test
> added by my patch.
> This is how the test looks:

As you have worked more on cpu=v4 instructions.
Is it a requirement that MOVSX32 can only have offset = 8/16 and never 32.
I know that MOVSX32 with offset=32 is equivalent to normal MOV32.

If this is a requirement then the below test is running an invalid
instruction and we can remove it from test_bpf.

> {
>                 "ALU_MOVSX | BPF_W",
>                 .u.insns_int = {
>                         BPF_LD_IMM64(R2, 0x00000000deadbeefLL),
>                         BPF_LD_IMM64(R3, 0xdeadbeefdeadbeefLL),
>                         BPF_MOVSX32_REG(R1, R3, 32),
>                         BPF_JMP_REG(BPF_JEQ, R2, R1, 2),
>                         BPF_MOV32_IMM(R0, 2),
>                         BPF_EXIT_INSN(),
>                         BPF_MOV32_IMM(R0, 1),
>                         BPF_EXIT_INSN(),
>                 },
>                 INTERNAL,
>                 { },
>                 { { 0, 0x1 } },
>  }
>
> I am creating a build for testing on my end.
>
> >
> >
> >
> > The kernel config and materials to reproduce are available at:
> > https://download.01.org/0day-ci/archive/20231011/202310111838.46ff5b6a-oliver.sang@intel.com
> >
> >
> >
> > --
> > 0-DAY CI Kernel Test Service
> > https://github.com/intel/lkp-tests/wiki
> >
>
> Thanks,
> Puranjay