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Date: Wed, 04 Apr 2012 12:32:26 -0700
From: Julian Elischer <julian@freebsd.org>
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To: John Baldwin <jhb@freebsd.org>
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Cc: svn-src-head@freebsd.org, svn-src-all@freebsd.org,
	Gleb Smirnoff <glebius@freebsd.org>, src-committers@freebsd.org
Subject: Re: svn commit: r233745 - head/sys/netinet/ipfw
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On 4/4/12 4:57 AM, John Baldwin wrote:
> On Tuesday, April 03, 2012 7:46:56 pm Julian Elischer wrote:
>> On 3/31/12 4:20 AM, Gleb Smirnoff wrote:
>>
>>
>> Many years ago there was the possibility that malloc M_WAITOK could
>> return on shutdown or in some other rare error cases.
>>
>> Are we certain this is no longer true?
> That hasn't been true in a long while.  In edge cases malloc() with M_WAITOK
> will just panic rather than return NULL.  (e.g. "kmem too small")
>
what happens if you call reboot while it is waiting for free space?