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Date: Wed, 29 Jun 2011 09:31:58 +0200
From: Jan Kiszka <jan.kiszka@domain.hid>
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Subject: Re: [Xenomai-core] [Xenomai-git] Jan Kiszka : nucleus: Allow
 drop_u_mode syscall from any context
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To: Gilles Chanteperdrix <gilles.chanteperdrix@xenomai.org>
Cc: Xenomai core <Xenomai-core@domain.hid>

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On 2011-06-29 09:25, Gilles Chanteperdrix wrote:
> On 06/29/2011 09:06 AM, Jan Kiszka wrote:
>> On 2011-06-28 23:29, Gilles Chanteperdrix wrote:
>>> On 06/28/2011 11:01 PM, GIT version control wrote:
>>>> Module: xenomai-jki
>>>> Branch: for-upstream
>>>> Commit: 5597470d84584846875e8a35309e6302c768addf
>>>> URL:    http://git.xenomai.org/?p=3Dxenomai-jki.git;a=3Dcommit;h=3D5=
597470d84584846875e8a35309e6302c768addf
>>>>
>>>> Author: Jan Kiszka <jan.kiszka@domain.hid>
>>>> Date:   Tue Jun 28 22:10:07 2011 +0200
>>>>
>>>> nucleus: Allow drop_u_mode syscall from any context
>>>>
>>>> xnshadow_sys_drop_u_mode already checks if the caller is a shadow. I=
t
>>>> does that without issuing a warning message if the check fails - in
>>>> contrast to do_hisyscall_event. As user space may call this cleanup
>>>> service even for non-shadow threads (e.g. after shadow creation fail=
ed),
>>>> we better silence this warning.
>>>>
>>>> Signed-off-by: Jan Kiszka <jan.kiszka@domain.hid>
>>>
>>> Jan,
>>>
>>> I have a branch here, which allocates u_mode in the shared heap, so,
>>> this syscall is about to become unnecessary.
>>>
>>> See:
>>> http://git.xenomai.org/?p=3Dxenomai-gch.git;a=3Dshortlog;h=3Drefs/hea=
ds/u_mode
>>
>> Even better. When do you plan to merge all this? I'd like to finally f=
ix
>> the various MPS fastlock breakages, specifically as they overlap with
>> other issues there.
>=20
> I would like to give a chance to Philippe to have a look at it before i=
t
> is merged (especially the commit using an adeos ptd).

OK.

>=20
> Normally, the MPS fastlock issues are solved in this branch.

Only the previously discussed leak. MSP-disabled is still oopsing, and
error clean up is also broken - but not only for MPS.

I'll base my fixes on top of your branch.

Jan


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