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: > [] warn_slowpath+0xaf/0x110 > [] ? sysfs_addrm_finish+0x1a6/0x250 > [] ? __phys_addr+0x9/0x50 > [] ? __phys_addr+0x9/0x50 > [] ? kobject_release+0x5d/0xa0 > [] ? __vunmap+0x12/0x110 > [] sysfs_remove_group+0xeb/0xf0 > [] mc_sysdev_remove+0x38/0x50 [microcode] > [] sysdev_driver_unregister+0x68/0xa0 > [] microcode_exit+0x39/0x65 [microcode] > [] sys_delete_module+0x191/0x250 > [] system_call_fastpath+0x16/0x1b > ---[ end trace 0a72bfd99e89dde6 ]--- > ------------[ cut here ]------------ Full dmesg and lspci attached. Jeff