linux-kernel - Re: 2.6.19-rc2-mm1 // errors in verify_redzone

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Date:	Thu, 19 Oct 2006 10:25:29 -0700
From:	Andrew Morton <akpm@...l.org>
To:	jt@....hp.com
Cc:	Mariusz Kozlowski <m.kozlowski@...land.pl>,
	linux-kernel@...r.kernel.org,
	"John W. Linville" <linville@...driver.com>
Subject: Re: 2.6.19-rc2-mm1 // errors in verify_redzone_free()

On Thu, 19 Oct 2006 10:17:27 -0700
Jean Tourrilhes <jt@....hp.com> wrote:

> On Thu, Oct 19, 2006 at 10:03:42AM -0700, Andrew Morton wrote:
> > On Thu, 19 Oct 2006 16:45:39 +0200
> > Mariusz Kozlowski <m.kozlowski@...land.pl> wrote:
> > 
> > > Hello,
> > > 
> > > 	Multiple of verif were found with 2.6.19-rc2-mm1 kernel:
> > > 
> > > slab error in verify_redzone_free(): cache `size-32': memory outside object 
> > > was overwritten
> > >  [<c0103765>] dump_trace+0x1c1/0x1f1
> > >  [<c01037af>] show_trace_log_lvl+0x1a/0x30
> > >  [<c0103ed8>] show_trace+0x12/0x14
> > >  [<c0103f7b>] dump_stack+0x19/0x1b
> > >  [<c0158357>] __slab_error+0x26/0x28
> > >  [<c0158496>] cache_free_debugcheck+0x13d/0x1d8
> > >  [<c0158bb0>] kfree+0x54/0xa5
> > >  [<c037fba4>] ioctl_standard_call+0x187/0x2a1
> > >  [<c037ffe6>] wireless_process_ioctl+0x328/0x3c7
> > >  [<c03763d4>] dev_ioctl+0x1fd/0x372
> > >  [<c036b080>] sock_ioctl+0x34/0x1e8
> > >  [<c0167a92>] do_ioctl+0x22/0x71
> > >  [<c0167b36>] vfs_ioctl+0x55/0x29b
> > >  [<c0167daf>] sys_ioctl+0x33/0x50
> > >  [<c0102ff5>] sysenter_past_esp+0x56/0x79
> > >  [<b7f4e410>] 0xb7f4e410
> > >  =======================
> > > dd20cb64: redzone 1:0x170fc2a5, redzone 2:0x170fc200.
> > > slab error in verify_redzone_free(): cache `size-32': memory outside object 
> > > was overwritten
> > >  [<c0103765>] dump_trace+0x1c1/0x1f1
> > >  [<c01037af>] show_trace_log_lvl+0x1a/0x30
> > >  [<c0103ed8>] show_trace+0x12/0x14
> > >  [<c0103f7b>] dump_stack+0x19/0x1b
> > >  [<c0158357>] __slab_error+0x26/0x28
> > >  [<c0158496>] cache_free_debugcheck+0x13d/0x1d8
> > >  [<c0158bb0>] kfree+0x54/0xa5
> > >  [<c037fba4>] ioctl_standard_call+0x187/0x2a1
> > >  [<c037ffe6>] wireless_process_ioctl+0x328/0x3c7
> > >  [<c03763d4>] dev_ioctl+0x1fd/0x372
> > >  [<c036b080>] sock_ioctl+0x34/0x1e8
> > >  [<c0167a92>] do_ioctl+0x22/0x71
> > >  [<c0167b36>] vfs_ioctl+0x55/0x29b
> > >  [<c0167daf>] sys_ioctl+0x33/0x50 
> > >  [<c0102ff5>] sysenter_past_esp+0x56/0x79
> > >  [<b7f4e410>] 0xb7f4e410
> > 
> > The wireless ioctls are still blowing up?  I thought we'd fixed that,
> > or is this something new?
> 
> 	Do you know which driver the user is using ? Is it an
> in-kernel driver, or an out-of-kernel driver ?
> 	Thanks !
> 

Modules Loaded         orinoco_cs orinoco hermes pcmcia firmware_class 
yenta_socket rsrc_nonstatic pcmcia_core

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