Re: [Xenomai-core] [Xenomai-git] Jan Kiszka : nucleus: Allow drop_u_mode syscall from any context

[Jan Kiszka <jan.kiszka@domain.hid>]

[-- Attachment #1: Type: text/plain, Size: 1806 bytes --]

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=xenomai-jki.git;a=commit;h=5597470d84584846875e8a35309e6302c768addf
>>>>
>>>> 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. It
>>>> 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 failed),
>>>> 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=xenomai-gch.git;a=shortlog;h=refs/heads/u_mode
>>
>> Even better. When do you plan to merge all this? I'd like to finally fix
>> the various MPS fastlock breakages, specifically as they overlap with
>> other issues there.
> 
> I would like to give a chance to Philippe to have a look at it before it
> is merged (especially the commit using an adeos ptd).

OK.

> 
> 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


[-- Attachment #2: OpenPGP digital signature --]
[-- Type: application/pgp-signature, Size: 259 bytes --]