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Re: Status of the AArch* builders
- From: Sergio Durigan Junior <sergiodj at redhat dot com>
- To: Alan Hayward <Alan dot Hayward at arm dot com>
- Cc: Ramana Radhakrishnan <ramana dot radhakrishnan at foss dot arm dot com>, Simon Marchi <simon dot marchi at polymtl dot ca>, GDB Patches <gdb-patches at sourceware dot org>, Simon Marchi <simon dot marchi at ericsson dot com>, nd <nd at arm dot com>, Pedro Alves <palves at redhat dot com>
- Date: Mon, 15 Oct 2018 08:42:05 -0400
- Subject: Re: Status of the AArch* builders
- References: <20180606151629.36602-1-alan.hayward@arm.com> <20180606151629.36602-3-alan.hayward@arm.com> <9FBBFBF2-9363-49AA-8BC3-20E4E0AFBFED@arm.com> <5862fa9c22cc48d86256686e74d60f20@polymtl.ca> <82743c0795488492486076685b9f8828@polymtl.ca> <CBFEC036-41DE-4C1A-BFD3-CEAF23E7AF70@arm.com> <93f7cb8434f463508b3fc3cfbcd29ef0@polymtl.ca> <877en43qx1.fsf@redhat.com> <644470E6-AEB8-4F84-890C-7496EC8BB419@arm.com> <8736xr4ukx.fsf@redhat.com> <6b1500d9-bc31-aa09-586f-d451b910d880@foss.arm.com> <7BC78EF8-06BE-439B-835B-0F0847BF785F@arm.com> <877ejf50qo.fsf_-_@redhat.com> <B87E5E93-FB70-4257-A263-52868C1F6936@arm.com> <87a7o7ot6r.fsf@redhat.com> <355AA6DE-FAB1-425B-8CE2-6E1508E57F88@arm.com> <87ftxb6l3u.fsf@redhat.com> <B40821B1-35D6-4253-A0E5-5DDC847B5998@arm.com>
On Monday, October 15 2018, Alan Hayward wrote:
>> On 12 Oct 2018, at 20:06, Sergio Durigan Junior <sergiodj@redhat.com> wrote:
>>
>> On Thursday, October 11 2018, Alan Hayward wrote:
>>
>>> I’ve setup buildbot-slave-0.8.14 in a virtualenv/
>>> (Oddly, I had to install twisted==16.4.1, as anything newer than that caused a hang).
>>>
>>> I’ve manually checked you can build gdb and run the testsuite.
>>>
>>> My recent experiments with the testsuite on Aarch64 show all the threaded tests
>>> are quite racy on a fully loaded ubuntu, whereas on redhat/suse they are fairly
>>> stable. I’m still looking into why this is. But, in the short-term maybe we should
>>> restrict the number of jobs to 32 (or maybe even fewer?)
>>
>> Sure, no problem. What do you think of 16?
>
> I’ve been running some more tests over the weekend. At 32 I still get quite a bit of racy
> behaviour, and at 16 it looks roughly the same as an x86 run.
>
> So yes, 16 sounds good.
Cool, I configured the buildslave to use 16 cores.
>>
>>> Sergio, could you please add the relevant server config.
>>
>> It's a good idea to follow the instructions here:
>>
>> <https://sourceware.org/gdb/wiki/BuildBot#Buildslave_configuration>
>>
>> And make sure that all of the necessary/recommended deps are installed
>> in the machine. The more deps, the more tests will be performed.
>
> All looks good.
>
> I’m not sure who gets access to the wiki (looks like I can’t log in).
> Errors I noticed:
> * There is a mention of both 0.8.14 and 0.8.12 for buildslave
Fixed.
> * The Debian specific instructions should probably also be for Ubuntu too.
Fixed.
Thanks for the heads up.
>>
>> You will need a password to connect to the BuildBot master. I will send
>> it to you in private.
>
> Slave created.
Hm, how did you create the slave? I don't see it connected to the
BuildBot master:
https://gdb-build.sergiodj.net/buildslaves/ubuntu16-aarch64
>>
>> I also recommend creating at least 3 builders associated with each
>> slave: native, native-gdbserver, and native-extended-gdbserver. If
>> you're OK with it, I'll do that.
>>
>
> That’s fine.
Done.
>> Last question: is there any special flags needed to build GDB on the
>> machine?
>>
>
> Nope. My usual build line is:
> $ configure --enable-sim --disable-gprof --disable-gold --disable-gas
> $ make
That's great, it should work without modifications then.
Thanks,
--
Sergio
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