Re: [V4]fix ocfs2 aio/dio writing process hang

From: Joel Becker
Date: Thu Jun 28 2012 - 04:35:11 EST


Btw, do you want me to pull these through the ocfs2 tree, or are you
sending them along yourself?

Joel

On Wed, Jun 27, 2012 at 05:09:53PM +0800, Junxiao Bi wrote:
>
> V4 changes:
> add Acked-by: Joel Becker <jlbec@xxxxxxxxxxxx>
>
> V3 changes:
> - add Cc: stable@xxxxxxxxxxxxxxx in the patch header to align with stable rules
> - add Acked-by: Jeff Moyer <jmoyer@xxxxxxxxxx>
>
> V2 changes:
> - update the patch header of the first patch to make it more clear.
>
>
> This patch list fixes an issue about ocfs2 aio/dio write process hang.
> The call trace is like this:
> @ cat /proc/15913/stack
> @ [<ffffffffa06e1085>] ocfs2_aiodio_wait+0x85/0xc0 [ocfs2]
> @ [<ffffffffa06e3e39>] ocfs2_file_aio_write+0x99/0xa0 [ocfs2]
> @ [<ffffffff811ace97>] aio_rw_vect_retry+0x87/0x150
> @ [<ffffffff811aebd1>] aio_run_iocb+0x71/0x170
> @ [<ffffffff811af59b>] io_submit_one+0x1ab/0x280
> @ [<ffffffff811af77c>] do_io_submit+0x10c/0x1c0
> @ [<ffffffff811af840>] sys_io_submit+0x10/0x20
> @ [<ffffffff81509b42>] system_call_fastpath+0x16/0x1b
> @ [<ffffffffffffffff>] 0xffffffffffffffff
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