linux-kernel - Re: [2.6.35-rc1 regression] sysfs: cannot create duplicate filename ... XVR-600 related?

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Date:	Wed, 2 Jun 2010 00:51:27 +0200
From:	Mikael Pettersson <mikpe@...uu.se>
To:	David Miller <davem@...emloft.net>
Cc:	mikpe@...uu.se, linux-kernel@...r.kernel.org,
	sparclinux@...r.kernel.org
Subject: Re: [2.6.35-rc1 regression] sysfs: cannot create duplicate
 filename ... XVR-600 related?

David Miller writes:
 > From: Mikael Pettersson <mikpe@...uu.se>
 > Date: Tue, 1 Jun 2010 21:57:42 +0200
 > 
 > > Booting 2.6.35-rc1 on a Sun Blade 2500 Red, I'm greeted with:
 > 
 > I know about the problem and will look at it soon hopefully, I see it
 > on some of my sparc64 boxes too.
 > 
 > You'll also have better luck reporting this to the proper mailing
 > list, which is sparclinux@...r.kernel.org, added to the CC:

I wasn't sure if this was a generic bug or a SPARC-specific one.
If I had suspected it was SPARC-specific I'd certainly have chosen
the sparclinux ML as the primary recipient.  FWIW, one reply I
received indicated it was a known generic bug.

 > > ------------[ cut here ]------------
 > > WARNING: at fs/sysfs/dir.c:451 sysfs_add_one+0x74/0x90()
 > > sysfs: cannot create duplicate filename '/devices/root/f0079a58/pci0003:00/0003:00:02.0/slot'
 > > Modules linked in:
 > > Call Trace:
 > >  [0000000000458e20] warn_slowpath_fmt+0x2c/0x3c
 > >  [0000000000501dac] sysfs_add_one+0x74/0x90
 > >  [0000000000502cd4] sysfs_do_create_link+0xf0/0x184
 > >  [000000000055a62c] pci_create_sysfs_dev_files+0x304/0x428
 > >  [000000000074c6f8] pci_sysfs_init+0x20/0x6c
 > >  [0000000000426acc] do_one_initcall+0x44/0x164
 > >  [000000000073a32c] kernel_init+0x1a0/0x238
 > >  [000000000042aea4] kernel_thread+0x30/0x48
 > >  [0000000000640efc] rest_init+0x18/0x88
 > > ---[ end trace 8093a3146373dac8 ]---
 > > 
 > > (There are no interesting messages before or after this one.)
 > > 
 > > The device at 003:00:02.0 is a Sun XVR-600 graphics card, driven by
 > > drivers/video/sunxvr500.c.  There was no such warning in 2.6.34 or
 > > earlier kernels.
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