[Linux-kernel-mentees] Linux 5.3.12 BOOT TEST: Compiled, Booted, everything OK.

[Linux-kernel-mentees] Linux 5.3.12 BOOT TEST: Compiled, Booted, everything OK.

[Daniel W. S. Almeida]

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~ 2hr uptime: no crashes, no new errors on dmesg, everything looks good.


*This pops up after diffing the output of kselftest though:*

< # ./reuseport_bpf: Unable to open tcp_fastopen sysctl for writing: 
Permission denied
---
 > # ./reuseport_bpf: ebpf error. log:
 > # 0: (bf) r6 = r1
 > # 1: (20) r0 = *(u32 *)skb[0]
 > # 2: (97) r0 %= 10
 > # 3: (95) exit
 > # processed 4 insns (limit 1000000) max_states_per_insn 0 
total_states 0 peak_states 0 mark_read 0
 > #
 > # : Operation not permitted

I did not run kselftest as root. I assume it is nothing noteworthy?



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Re: [Linux-kernel-mentees] Linux 5.3.12 BOOT TEST: Compiled, Booted, everything OK.

[Greg KH]

On Thu, Nov 21, 2019 at 03:55:34PM -0300, Daniel W. S. Almeida wrote:
> ~ 2hr uptime: no crashes, no new errors on dmesg, everything looks good.

Thanks for testing.

> *This pops up after diffing the output of kselftest though:*
> 
> < # ./reuseport_bpf: Unable to open tcp_fastopen sysctl for writing:
> Permission denied
> ---
> > # ./reuseport_bpf: ebpf error. log:
> > # 0: (bf) r6 = r1
> > # 1: (20) r0 = *(u32 *)skb[0]
> > # 2: (97) r0 %= 10
> > # 3: (95) exit
> > # processed 4 insns (limit 1000000) max_states_per_insn 0 total_states 0
> peak_states 0 mark_read 0
> > #
> > # : Operation not permitted
> 
> I did not run kselftest as root. I assume it is nothing noteworthy?

Is this a new issue, or has it always been there?

thanks,

greg k-h
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Re: [Linux-kernel-mentees] Linux 5.3.12 BOOT TEST: Compiled, Booted, everything OK.

[Shuah Khan]

On 11/21/19 1:21 PM, Greg KH wrote:
> On Thu, Nov 21, 2019 at 03:55:34PM -0300, Daniel W. S. Almeida wrote:
>> ~ 2hr uptime: no crashes, no new errors on dmesg, everything looks good.
> 
> Thanks for testing.
> 
>> *This pops up after diffing the output of kselftest though:*
>>
>> < # ./reuseport_bpf: Unable to open tcp_fastopen sysctl for writing:
>> Permission denied
>> ---
>>> # ./reuseport_bpf: ebpf error. log:
>>> # 0: (bf) r6 = r1
>>> # 1: (20) r0 = *(u32 *)skb[0]
>>> # 2: (97) r0 %= 10
>>> # 3: (95) exit
>>> # processed 4 insns (limit 1000000) max_states_per_insn 0 total_states 0
>> peak_states 0 mark_read 0
>>> #
>>> # : Operation not permitted
>>
>> I did not run kselftest as root. I assume it is nothing noteworthy?
> 
> Is this a new issue, or has it always been there?
> 

This is not new issue. Running a root is required based on results
from my test runs.

thanks,
-- Shuah

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