Comment # 18 on bug 856659 from Martin Pluskal

Sorry, but I have to reopen this, still able to reproduce with
3.17.2-1.g1afb260-desktop (via running hwinfo).

lis 20 12:32:16 daredevil kernel: ------------[ cut here ]------------
lis 20 12:32:16 daredevil kernel: WARNING: CPU: 4 PID: 32418 at
../fs/sysfs/group.c:219 device_del+0x40/0x1b0()
lis 20 12:32:16 daredevil kernel: sysfs group ffffffff81eb4300 not found for
kobject 'parport0'
lis 20 12:32:16 daredevil kernel: Modules linked in: parport_pc(-) fuse bnep
bluetooth rfkill nf_log_ipv6 xt_pkttype nf_log_ipv4 nf_log_common xt_LOG
xt_limit iscsi_ibft iscsi_boot_sysfs af_packet ip6t_REJECT xt_tcpudp
nf_conntrack_ipv6 nf_defrag_ipv6 ip6table_raw ipt_REJECT iptable_raw xt_CT
iptable_filter ip6table_mangle nf_conntrack_netbios_ns nf_conntrack_broadcast
nf_conntrack_ipv4 nf_defrag_ipv4 ip_tables xt_conntrack nf_conntrack
ip6table_filter ip6_tables x_tables gpio_ich snd_usb_audio dell_wmi
snd_usbmidi_lib ppdev sparse_keymap snd_rawmidi coretemp dm_mod iTCO_wdt
iTCO_vendor_support snd_hda_codec_realtek snd_hda_codec_hdmi
snd_hda_codec_generic snd_hda_intel snd_hda_controller dcdbas snd_hda_codec
snd_hwdep snd_seq_device snd_pcm snd_timer snd kvm_intel e1000e joydev
serio_raw uas kvm usb_storage soundcore
lis 20 12:32:16 daredevil kernel:  wmi pcspkr mei_me mei parport ptp
acpi_cpufreq i7core_edac lpc_ich tpm_tis tpm pps_core i2c_i801 button edac_core
mfd_core shpchp processor btrfs xor raid6_pq crc32c_intel radeon sr_mod
i2c_algo_bit cdrom drm_kms_helper ttm drm ata_generic sg [last unloaded: lp]
lis 20 12:32:16 daredevil kernel: CPU: 4 PID: 32418 Comm: rmmod Not tainted
3.17.2-1.g1afb260-desktop #1
lis 20 12:32:16 daredevil kernel: Hardware name: Dell Inc. OptiPlex 980        
        /0D441T, BIOS A15 01/09/2014
lis 20 12:32:16 daredevil kernel:  0000000000000009 ffffffff8162cd5b
ffff8802cdbfbde8 ffffffff8105e157
lis 20 12:32:16 daredevil kernel:  ffff88009f22e800 ffff8802cdbfbe38
ffff880052d574c0 ffff8801eb1a4010
lis 20 12:32:16 daredevil kernel:  0000000000dd31d0 ffffffff8105e1bc
ffffffff81a4cf70 0000000000000028
lis 20 12:32:16 daredevil kernel: Call Trace:
lis 20 12:32:16 daredevil kernel:  [<ffffffff8100518e>] dump_trace+0x8e/0x350
lis 20 12:32:16 daredevil kernel:  [<ffffffff810054f6>]
show_stack_log_lvl+0xa6/0x190
lis 20 12:32:16 daredevil kernel:  [<ffffffff81006bf1>] show_stack+0x21/0x50
lis 20 12:32:16 daredevil kernel:  [<ffffffff8162cd5b>] dump_stack+0x49/0x6a
lis 20 12:32:16 daredevil kernel:  [<ffffffff8105e157>]
warn_slowpath_common+0x77/0x90
lis 20 12:32:16 daredevil kernel:  [<ffffffff8105e1bc>]
warn_slowpath_fmt+0x4c/0x50
lis 20 12:32:16 daredevil kernel:  [<ffffffff8141f690>] device_del+0x40/0x1b0
lis 20 12:32:16 daredevil kernel:  [<ffffffff8141f81a>]
device_unregister+0x1a/0x60
lis 20 12:32:16 daredevil kernel:  [<ffffffff8141f8ca>]
device_destroy+0x3a/0x40
lis 20 12:32:16 daredevil kernel:  [<ffffffffa03d0546>]
parport_remove_port+0x36/0x180 [parport]
lis 20 12:32:16 daredevil kernel:  [<ffffffffa07f3bc5>]
parport_pc_unregister_port+0x25/0x1a0 [parport_pc]
lis 20 12:32:16 daredevil kernel:  [<ffffffffa07f707e>]
parport_pc_exit+0x71/0xff3 [parport_pc]
lis 20 12:32:16 daredevil kernel:  [<ffffffff810d8ea4>]
SyS_delete_module+0x154/0x1f0
lis 20 12:32:16 daredevil kernel:  [<ffffffff81633a2d>]
system_call_fastpath+0x1a/0x1f
lis 20 12:32:16 daredevil kernel:  [<00007ffac063bf37>] 0x7ffac063bf37
lis 20 12:32:16 daredevil kernel: ---[ end trace 857b3d85090108d8 ]---