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Date: Thu, 4 Sep 2008 23:44:33 +0400
From: Alexey Dobriyan <adobriyan@gmail.com>
To: Eric Valette <eric.valette@free.fr>
Cc: linux-kernel@vger.kernel.org
Subject: Re: CD RW packet driver still oops in  2.6.27-rc5-git5
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References: <48C0316E.1030808@free.fr>
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On Thu, Sep 04, 2008 at 09:05:18PM +0200, Eric Valette wrote:
> pktcdvd: writer pktcdvd0 mapped to hdc
> ------------[ cut here ]------------
> WARNING: at /usr/src/linux-2.6.23.14/fs/sysfs/dir.c:463
> sysfs_add_one+0x27/0x2f()
> sysfs: duplicate filename '254:0' can not be created
> Modules linked in:
> Pid: 3848, comm: pktsetup Not tainted 2.6.27-rc5-git6 #68
>  [<c01189c1>] warn_slowpath+0x5a/0x7b
>  [<c0230ee0>] idr_get_empty_slot+0x154/0x202
>  [<c0230ee0>] idr_get_empty_slot+0x154/0x202
>  [<c023106d>] ida_get_new_above+0xdf/0x17b
>  [<c0189d7c>] sysfs_ilookup_test+0x0/0xd
>  [<c0165e2f>] ifind+0x15/0x7b
>  [<c0189f2f>] sysfs_find_dirent+0x13/0x23
>  [<c018a0a8>] sysfs_add_one+0x27/0x2f
>  [<c018abe3>] sysfs_do_create_link+0xa2/0xf6
>  [<c018ac47>] sysfs_create_link+0x7/0xc
>  [<c02ca902>] device_add+0x157/0x4fa
>  [<c02cad2d>] device_create_vargs+0x78/0x99
>  [<c02cad6c>] device_create+0x1e/0x22
>  [<c02d9844>] pkt_setup_dev+0x2ea/0x3d7
>  [<c0185801>] show_stat+0x140/0x4fd
>  [<c02d99b2>] pkt_ctl_ioctl+0x81/0x192
>  [<c015f6f5>] vfs_ioctl+0x49/0x5f
>  [<c015f92c>] do_vfs_ioctl+0x221/0x234
>  [<c015f96b>] sys_ioctl+0x2c/0x45
>  [<c0102c39>] sysenter_do_call+0x12/0x25
>  [<c0185801>] show_stat+0x140/0x4fd

This is not an oops as in oops, just sysfs tells that duplicate file
won't be created. Needs fixing, regardless.