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Date: Wed, 22 Sep 2004 17:42:08 +0400
From: Andrew Belashov <bel@orel.ru>
Organization: ORIS
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To: Daniel Eischen <deischen@freebsd.org>
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Subject: Re: Bug in kse_switchin()?
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Daniel Eischen wrote:
> On Wed, 22 Sep 2004, Andrew Belashov wrote:
> 
> 
>>Daniel Eischen wrote:
[...]
>> >
>> > Is lwpid_t 64-bit on sparc64 or is it somehow not being aligned
>> > properly within the mailbox?
>>
>>lwpid_t on sparc64 is 32-bit (typedef __int32_t       __lwpid_t).
>>
>>What about using copyout?
> 
> 
> Does it have to be 64-bit aligned in order to use suword32()?

No, it should be 32-bit aligned.

> I believe you can use copyout, but perhaps the mailbox should
> be laid out so that fields are better aligned (doing this
> would break ABI).

The problem is deeper, than I thought. And it hard to debug without
modifying kernel...

--
With best regards,
Andrew Belashov.