linux-kernel - Re: [2.6.23(?)=<] X used greatest stack depth: N bytes left

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Message-ID: <25148.1198894533@turing-police.cc.vt.edu>
Date:	Fri, 28 Dec 2007 21:15:33 -0500
From:	Valdis.Kletnieks@...edu
To:	"Oliver Pinter (Pintér Olivér)" 
	<oliver.pntr@...il.com>
Cc:	Randy Dunlap <randy.dunlap@...cle.com>,
	linux-kernel@...r.kernel.org
Subject: Re: [2.6.23(?)=<] X used greatest stack depth: N bytes left

On Sat, 29 Dec 2007 01:58:44 +0100, "=?ISO-8859-1?Q?Oliver_Pinter_(Pint=E9r_Oliv=E9r)?=" said:

> sure, but to 2.6.22 or 2.6.23-rcX (with merged the cfs scheduler)
> don't show this warnings, but the CONFIG_DEBUG_STACK_USAGE is enabled.
> 

And I look in your dmesg-2.6.24-rc6-wifi0, and I see in the last 15 lines or so:

Write protecting the kernel text: 3528k
Write protecting the kernel read-only data: 890k
khelper used greatest stack depth: 6328 bytes left
stty used greatest stack depth: 6180 bytes left
mount used greatest stack depth: 6156 bytes left
mknod used greatest stack depth: 5932 bytes left
Adding 2048276k swap on /dev/sda2.  Priority:-1 extents:1 across:2048276k
XFS mounting filesystem sda1
Ending clean XFS mount for filesystem: sda1
XFS mounting filesystem sda4
Ending clean XFS mount for filesystem: sda4
skge eth0: enabling interface
ADDRCONF(NETDEV_UP): eth0: link is not ready
wpa_supplicant used greatest stack depth: 5740 bytes left
eth1: no IPv6 routers present
dhclient3 used greatest stack depth: 5500 bytes left

So what message are you saying you don't see?  I see a bunch of "used greatest
stack" messages there?

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