On Thu, Mar 13, 2008 at 11:34:39AM -0700, Greg KH wrote:
> On Thu, Mar 13, 2008 at 01:15:52AM +0100, Tilman Schmidt wrote:
> > Am 11.03.2008 09:14 schrieb Andrew Morton:
> > > ftp://ftp.kernel.org/pub/linux/kernel/people/akpm/patches/2.6/2.6.25-rc5/2.6.25-rc5-mm...
> >
> > Late during boot, this issues the following warning on my Pentium D,
> > apparently when trying to load an appropriate CPU frequency driver:
> >
> > [ 56.759128] ------------[ cut here ]------------
> > [ 56.765058] WARNING: at drivers/base/sys.c:173 sysdev_driver_register+0x34/0xce()
> > [ 56.776027] Modules linked in: acpi_cpufreq(+) speedstep_lib ip6table_filter ip6_tables x_tables ipv6 microcode firmware_class loop osst st sr_mod cdrom pata_acpi bas_gigaset snd_hda_intel gigaset isdn snd_pcm ata_generic<6>ip_tables: (C) 2000-2006 Netfilter Core Team
> > [ 56.785293] snd_timer aic7xxx slhc snd ohci1394 rtc_cmos ieee1394 shpchp crc_ccitt iTCO_wdt e1000e rtc_core iTCO_vendor_support soundcore scsi_transport_spi watchdog_core pci_hotplug intel_agp button thermal agpgart rtc_lib processor i2c_i801 watchdog_dev parport_pc i2c_core snd_page_alloc parport pata_marvell sg ext3 jbd mbcache linear sd_mod usbhid hid ff_memless ahci libata scsi_mod ehci_hcd uhci_hcd usbcore dm_snapshot dm_mod
> > [ 56.805358] Pid: 2856, comm: modprobe Not tainted 2.6.25-rc5-mm1-testing #1
> > [ 56.810766] [<c01272e9>] warn_on_slowpath+0x41/0x6d
> > [ 56.820628] [<c0230065>] ? acpi_ns_lookup+0x2b5/0x497
> > [ 56.830455] [<c0230e25>] ? acpi_evaluate_object+0x23e/0x249
> > [ 56.840414] [<c02ff809>] ? mutex_unlock+0x8/0xa
> > [ 56.848380] [<fa9fec1d>] ? acpi_processor_preregister_performance+0x4e6/0x4f1 [processor]
> > [ 56.858297] [<c0286438>] ? cpufreq_register_driver+0x42/0xfc
> > [ 56.868263] [<c026423d>] sysdev_driver_register+0x34/0xce
> > [ 56.877974] [<c0286476>] cpufreq_register_driver+0x80/0xfc
> > [ 56.887327] [<facde034>] acpi_cpufreq_init+0x34/0x3a [acpi_cpufreq]
> > [ 56.897290] [<c014ad7a>] sys_init_module+0x1816/0x1943
> > [ 56.907304] [<facb5000>] ? icmp_checkentry+0x0/0x14 [ip_tables]
> > [ 56.917255] [<c0183cd2>] ? sys_read+0x3b/0x60
> > [ 56.925094] [<c0106aec>] sysenter_past_esp+0x6d/0xc5
> > [ 56.935071] =======================
> > [ 56.945016] ---[ end trace 9ade9adb26b6da0a ]---
> >
> > Looking back, -rc3-mm1 did that too.
> > Mainline (-rc3 through -rc5) never did.
> > Let me know if you need more information.
> > CCing Dave Jones for cpufreq and Greg KH for sysdev.
>
> This implys that a cpufreq module is getting registered twice in the
> sysdev code :(
I'm wondering if the processor driver has registered something
that acpi_cpufreq is also trying to do. Cc'ing linux-acpi
Dave
--
http://www.codemonkey.org.uk
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