Re: [PATCH 2/2] xfs: mark the xfs-alloc workqueue as high priority

To:	Eric Sandeen <sandeen@xxxxxxxxxxx>
Subject:	Re: [PATCH 2/2] xfs: mark the xfs-alloc workqueue as high priority
From:	Tejun Heo <tj@xxxxxxxxxx>
Date:	Mon, 12 Jan 2015 18:37:55 -0500
Cc:	Eric Sandeen <sandeen@xxxxxxxxxx>, xfs-oss <xfs@xxxxxxxxxxx>
Delivered-to:	xfs@xxxxxxxxxxx
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Sender:	Tejun Heo <htejun@xxxxxxxxx>
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Hello, Eric.

On Mon, Jan 12, 2015 at 05:12:34PM -0600, Eric Sandeen wrote:
> The only tasks in RU state are the one I mentioned, and swapper/X.
> 
> crash> ps -m | grep RU
> [0 00:00:00.159] [RU]  PID: 17056  TASK: c000000111cc0000  CPU: 8   COMMAND: 
> "kworker/u112:1"
> [4 19:11:44.360] [RU]  PID: 0      TASK: c0000000010416f0  CPU: 0   COMMAND: 
> "swapper/0"
> [4 19:11:44.192] [RU]  PID: 0      TASK: c000000633280000  CPU: 1   COMMAND: 
> "swapper/1"
> [4 19:11:44.192] [RU]  PID: 0      TASK: c0000006332c0000  CPU: 2   COMMAND: 
> "swapper/2"
> ...
> 
> and I don't see anything interesting in those. :)

Heh, I don't get it.  Can you please print out worker_pool->nr_running
of the pool that the hung work item is queued on?

Thanks.

-- 
tejun

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Re: [PATCH 1/2] xfs: make global xfsalloc workqueue per-mount, (continued) Re: [PATCH 1/2] xfs: make global xfsalloc workqueue per-mount, Brian Foster [PATCH 2/2] xfs: mark the xfs-alloc workqueue as high priority, Eric Sandeen Re: [PATCH 2/2] xfs: mark the xfs-alloc workqueue as high priority, Tejun Heo Re: [PATCH 2/2] xfs: mark the xfs-alloc workqueue as high priority, Eric Sandeen Re: [PATCH 2/2] xfs: mark the xfs-alloc workqueue as high priority, Tejun Heo Re: [PATCH 2/2] xfs: mark the xfs-alloc workqueue as high priority, Eric Sandeen Re: [PATCH 2/2] xfs: mark the xfs-alloc workqueue as high priority, Tejun Heo Re: [PATCH 2/2] xfs: mark the xfs-alloc workqueue as high priority, Eric Sandeen Re: [PATCH 2/2] xfs: mark the xfs-alloc workqueue as high priority, Tejun Heo Re: [PATCH 2/2] xfs: mark the xfs-alloc workqueue as high priority, Eric Sandeen Re: [PATCH 2/2] xfs: mark the xfs-alloc workqueue as high priority, Tejun Heo <= Re: [PATCH 2/2] xfs: mark the xfs-alloc workqueue as high priority, Eric Sandeen Re: [PATCH 2/2] xfs: mark the xfs-alloc workqueue as high priority, Tejun Heo Re: [PATCH 2/2] xfs: mark the xfs-alloc workqueue as high priority, Eric Sandeen Re: [PATCH 2/2] xfs: mark the xfs-alloc workqueue as high priority, Tejun Heo Re: [PATCH 2/2] xfs: mark the xfs-alloc workqueue as high priority, Eric Sandeen [PATCH wq/for-3.19] workqueue: fix subtle pool management issue which can stall whole worker_pool, Tejun Heo [PATCH workqueue wq/for-3.19-fixes] workqueue: fix subtle pool management issue which can stall whole worker_pool, Tejun Heo Re: [PATCH workqueue wq/for-3.19-fixes] workqueue: fix subtle pool management issue which can stall whole worker_pool, Lai Jiangshan Re: [PATCH 2/2] xfs: mark the xfs-alloc workqueue as high priority, Dave Chinner Re: [PATCH 2/2] xfs: mark the xfs-alloc workqueue as high priority, Tejun Heo

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