Re: [RFC PATCH v4 2/2] hung_task: Display every hung task warning

From: David Rientjes
Date: Wed Jan 22 2014 - 00:24:56 EST

On Mon, 20 Jan 2014, atomlin@xxxxxxxxxx wrote:

> From: Aaron Tomlin <atomlin@xxxxxxxxxx>
> When khungtaskd detects hung tasks, it prints out
> backtraces from a number of those tasks.
> Limiting the number of backtraces being printed
> out can result in the user not seeing the information
> necessary to debug the issue. The hung_task_warnings
> sysctl controls this feature.
> This patch makes it possible for hung_task_warnings
> to accept a special value to print an unlimited
> number of backtraces when khungtaskd detects hung
> tasks.
> The special value is -1. To use this value it is
> necessary to change types from ulong to int.
> Signed-off-by: Aaron Tomlin <atomlin@xxxxxxxxxx>
> Reviewed-by: Rik van Riel <riel@xxxxxxxxxx>

Acked-by: David Rientjes <rientjes@xxxxxxxxxx>

Nice documentation updates!
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