Re: [AIO] aio-2.6.13-rc6-B1

[Sébastien Dugué <sebastien.dugue@bull.net>]

On Wed, 2005-08-17 at 14:44 -0400, Benjamin LaHaise wrote:
> The bugfix followup to the last aio rollup is now available at:
> 
> 	http://www.kvack.org/~bcrl/patches/aio-2.6.13-rc6-B1-all.diff
> 
> with the split up in:
> 
> 	http://www.kvack.org/~bcrl/patches/aio-2.6.13-rc6-B1/
> 
> This fixes the bugs noticed in the -B0 variant.  Major changes in this 
> patchset are:
> 
> 	- added aio semaphore ops
> 	- aio thread based fallbacks
> 	- vectored aio file_operations
> 	- aio sendmsg/recvmsg via thread fallbacks
> 	- retry based aio pipe operations
> 
> Comments?
> 
> 		-ben
> 

  Hi Ben,

  what's the point of calling wake_up_locked(&sem->wait) in 
aio_down_wait? We're already in a wakeup path and end up
calling __wake_up_common recursively.

  I think it may be one of the cause of my kernel hanging at the
very beginning.

  When I remove this call things go further but at some point a
semaphore wait queue gets thrashed and __wake_up_common tries to
call an invalid callback function.

  Any input appreciated.

  Sébastien.

-- 
------------------------------------------------------

  Sébastien Dugué                BULL/FREC:B1-247
  phone: (+33) 476 29 77 70      Bullcom: 229-7770

  mailto:sebastien.dugue@bull.net

  Linux POSIX AIO: http://www.bullopensource.org/posix
  
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