Re: [PATCH] Make new setting of panic_on_oom

From: Benjamin LaHaise
Date: Fri Apr 20 2007 - 08:42:26 EST


On Fri, Apr 20, 2007 at 08:43:56PM +0900, Yasunori Goto wrote:
>
> The current panic_on_oom may not work if there is a process using
> cpusets/mempolicy, because other nodes' memory may still free.
> But some people want failover by panic ASAP even if they are used.
> This patch makes new setting for its request.
>
> This is not tested yet. But it would work.

> read_lock(&tasklist_lock);
>
> + if (sysctl_panic_on_oom == 2)
> + panic("out of memory. Compulsory panic_on_oom is selected.\n");
> +

Wouldn't it be safer to put the panic before the read_lock()?

-ben
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