svn commit: r219526 - stable/8/sys/cddl/contrib/opensolaris/uts/common/fs/zfs

[Kostik Belousov]

On Fri, Mar 11, 2011 at 07:27:31PM +0000, Andriy Gapon wrote:
> Author: avg
> Date: Fri Mar 11 19:27:31 2011
> New Revision: 219526
> URL: http://svn.freebsd.org/changeset/base/219526
> 
> Log:
>   use even larger stack size for ZFS txg_sync_thread
>   
>   While the stack size was larger than the default stack size on i386, it
>   was smaller than the default stack size on amd64 and apparently that
>   wasn't enough.  So, bump the size to 4 pages.  Upcoming ZFSv28 code uses
>   8 pages for this stack size.
>   
>   This is a direct commit to stable/8.
>   
>   PR:		kern/154681
>   Discussed with:	pjd
> 
> Modified:
>   stable/8/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/txg.c
> 
> Modified: stable/8/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/txg.c
> ==============================================================================
> --- stable/8/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/txg.c	Fri Mar 11 19:21:42 2011	(r219525)
> +++ stable/8/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/txg.c	Fri Mar 11 19:27:31 2011	(r219526)
> @@ -146,7 +146,7 @@ txg_sync_start(dsl_pool_t *dp)
>  	 * 32-bit x86.  This is due in part to nested pools and
>  	 * scrub_visitbp() recursion.
>  	 */
> -	tx->tx_sync_thread = thread_create(NULL, 12<<10, txg_sync_thread,
> +	tx->tx_sync_thread = thread_create(NULL, 16<<10, txg_sync_thread,
>  	    dp, 0, &p0, TS_RUN, minclsyspri);
>  
>  	mutex_exit(&tx->tx_sync_lock);
What about architectures where PAGE_SIZE != 4096 ?
We have ptoa() macro.
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