Re: Bounce buffer deadlock

From: Linus Torvalds (torvalds@transmeta.com)
Date: Sat Jun 30 2001 - 12:32:03 EST


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

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