linux-kernel - microcode driver newly spews warnings

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Message-ID: <49E38331.3090808@garzik.org>
Date:	Mon, 13 Apr 2009 14:23:45 -0400
From:	Jeff Garzik <jeff@...zik.org>
To:	Ingo Molnar <mingo@...e.hu>, LKML <linux-kernel@...r.kernel.org>
CC:	"Rafael J. Wysocki" <rjw@...k.pl>
Subject: microcode driver newly spews warnings


Kernel: 2.6.30-rc1-00306-g8371f87
Hardware: ICH10 x86-64

This is a regression from 2.6.29.  Microcode spews the following WARNING 
multiple times during boot:

> ------------[ cut here ]------------
> WARNING: at fs/sysfs/group.c:138 sysfs_remove_group+0xeb/0xf0()
> Hardware name:         
> sysfs group ffffffffa0209700 not found for kobject 'cpu0'
> Modules linked in: microcode(-) kvm_intel kvm uinput sr_mod i2c_i801 cdrom i2c_c
> ore ata_generic sg firewire_ohci snd_hda_codec_realtek pata_marvell snd_hda_inte
> l snd_hda_codec snd_pcm_oss snd_mixer_oss snd_pcm snd_page_alloc e1000e ahci lib
> ata sd_mod scsi_mod crc_t10dif ext3 jbd uhci_hcd ehci_hcd [last unloaded: scsi_w
> ait_scan]
> Pid: 2161, comm: rmmod Not tainted 2.6.30-rc1-00306-g8371f87 #1
> Call Trace:
>  [<ffffffff80241a2f>] warn_slowpath+0xaf/0x110
>  [<ffffffff80324046>] ? sysfs_addrm_finish+0x1a6/0x250
>  [<ffffffff802294d9>] ? __phys_addr+0x9/0x50
>  [<ffffffff802294d9>] ? __phys_addr+0x9/0x50
>  [<ffffffff8036c49d>] ? kobject_release+0x5d/0xa0
>  [<ffffffff802ba7c2>] ? __vunmap+0x12/0x110
>  [<ffffffff80325a8b>] sysfs_remove_group+0xeb/0xf0
>  [<ffffffffa0207468>] mc_sysdev_remove+0x38/0x50 [microcode]
>  [<ffffffff803fc2f8>] sysdev_driver_unregister+0x68/0xa0
>  [<ffffffffa0207eed>] microcode_exit+0x39/0x65 [microcode]
>  [<ffffffff8026c511>] sys_delete_module+0x191/0x250
>  [<ffffffff8020b5bb>] system_call_fastpath+0x16/0x1b
> ---[ end trace 0a72bfd99e89dde6 ]---
> ------------[ cut here ]------------


Full dmesg and lspci attached.

	Jeff




View attachment "lspci.txt" of type "text/plain" (2836 bytes)

View attachment "dmesg.txt" of type "text/plain" (53167 bytes)