Re: Bounce buffer deadlock

[Linus Torvalds]

On Fri, 29 Jun 2001, Steve Lord wrote:
>
> Has anyone else seen a hang like this:
>
>   bdflush()
>     flush_dirty_buffers()
>       ll_rw_block()
> 	submit_bh(buffer X)
> 	  generic_make_request()
> 	    __make_request()
> 	        create_bounce()
> 		  alloc_bounce_page()
> 		    alloc_page()
> 		      try_to_free_pages()
> 			do_try_to_free_pages()
> 			  page_launder()
> 			    try_to_free_buffers( , 2)  -- i.e. wait for buffers
> 			      sync_page_buffers()
> 				__wait_on_buffer(buffer X)

Should be fixed in 2.4.6-pre8 (or pre7, for that matter).

		Linus