inappropriate module initialization/cleanup (#4) · Issues · Projects / Simple PCIe FMC carrier SPEC

inappropriate module initialization/cleanup

inappropriate module initialization/cleanup when parameters test_irq* or use_msi are used

[root@sdapc009 ~]# modprobe spec test_irq=1
[root@sdapc009 ~]# dmesg -c
[    0.000000] Linux version 3.10.0-327.4.5.el7.x86_64 (builder@kbuilder.dev.centos.org) (gcc version 4.8.3 20140911 (Red Hat 4.8.3-9) (GCC) ) #1 SMP Mon Jan 25 22:07:14 UTC 2016
...
[  320.873923] fmc: module verification failed: signature and/or required key missing - tainting kernel
[  320.897785] spec 0000:03:00.0:  probe for device 0003:0000
[  320.948298] spec 0000:03:00.0: got file "fmc/spec-init.bin", 1485236 (0x16a9b4) bytes
[  321.139869] spec 0000:03:00.0: FPGA programming successful
[  321.556011] spec 0000:03:00.0: received interrupt 16
[  321.556015] spec 0000:03:00.0: Interrupts work as expected
[  321.556020] spec 0000:03:00.0: mezzanine 0
[  321.556022]       Manufacturer: CERN
[  321.556024]       Product name: FmcAdc100m14b4cha
[root@sdapc009 ~]# rmmod spec
[root@sdapc009 ~]# modprobe spec use_msi=1
[root@sdapc009 ~]# dmesg -c
[  452.371586] spec 0000:03:00.0:  probe for device 0003:0000
[  452.371909] spec 0000:03:00.0: irq 32 for MSI/MSI-X
[  452.372593] spec 0000:03:00.0: got file "fmc/spec-init.bin", 1485236 (0x16a9b4) bytes
[  452.564164] spec 0000:03:00.0: FPGA programming successful
[  452.931262] spec 0000:03:00.0: mezzanine 0
[  452.931269]       Manufacturer: CERN
[  452.931270]       Product name: FmcAdc100m14b4cha
[root@sdapc009 ~]# rmmod spec
[root@sdapc009 ~]# modprobe spec test_irq=1
Message from syslogd@sdapc009 at Feb  2 18:51:12 ...
 kernel:do_IRQ: 1.224 No irq handler for vector (irq -1)
[root@sdapc009 ~]# dmesg -c
[  485.935712] spec 0000:03:00.0: remove
[  491.951932] spec 0000:03:00.0:  probe for device 0003:0000
[  491.952742] spec 0000:03:00.0: got file "fmc/spec-init.bin", 1485236 (0x16a9b4) bytes
[  492.144313] spec 0000:03:00.0: FPGA programming successful
[  492.511266] do_IRQ: 1.224 No irq handler for vector (irq -1)
[  492.561012] spec 0000:03:00.0: received interrupt 32
[  492.561017] spec 0000:03:00.0: Interrupts work as expected
[  492.561021] spec 0000:03:00.0: mezzanine 0
[  492.561023]       Manufacturer: CERN
[  492.561025]       Product name: FmcAdc100m14b4cha

After reboot:

[root@sdapc009 ~]# rmmod spec
[root@sdapc009 ~]# modprobe spec use_msi=1 test_irq=1
[root@sdapc009 ~]# dmesg -c
[  230.692595] spec 0000:03:00.0: remove
[  234.013838] spec 0000:03:00.0:  probe for device 0003:0000
[  234.013853] ------------[ cut here ]------------
[  234.013859] WARNING: at drivers/pci/msi.c:955 pci_enable_msi_block+0x98/0xb0()
[  234.013860] Modules linked in: spec(OE+) fmc(OE) xt_CHECKSUM ipt_MASQUERADE nf_nat_masquerade_ipv4 tun ip6t_rpfilter ip6t_REJECT ipt_REJECT xt_conntrack ebtable_nat ebtable_broute bridge stp llc ebtable_filter ebtables ip6table_nat nf_conntrack_ipv6 nf_defrag_ipv6 nf_nat_ipv6 ip6table_mangle ip6table_security ip6table_raw ip6table_filter ip6_tables iptable_nat nf_conntrack_ipv4 nf_defrag_ipv4 nf_nat_ipv4 nf_nat nf_conntrack iptable_mangle iptable_security iptable_raw iptable_filter coretemp kvm iTCO_wdt iTCO_vendor_support dcdbas i2c_i801 ppdev pcspkr snd_hda_codec_analog snd_hda_codec_generic snd_hda_intel snd_hda_codec sg lpc_ich mfd_core snd_hda_core snd_hwdep shpchp snd_seq snd_seq_device x38_edac parport_pc snd_pcm snd_timer snd parport soundcore edac_core binfmt_misc nfsd nfs_acl lockd grace
[  234.013895]  auth_rpcgss sunrpc ip_tables xfs libcrc32c sd_mod crc_t10dif crct10dif_generic crct10dif_common sr_mod cdrom nouveau ahci libahci video mxm_wmi wmi i2c_algo_bit drm_kms_helper serio_raw ttm libata tg3 drm ptp pps_core i2c_core floppy dm_mirror dm_region_hash dm_log dm_mod [last unloaded: spec]
[  234.013913] CPU: 1 PID: 2100 Comm: modprobe Tainted: G           OE  ------------   3.10.0-327.4.5.el7.x86_64 #1
[  234.013915] Hardware name: Dell Inc. Precision WorkStation T3400  /0TP412, BIOS A08 08/14/2008
[  234.013916]  0000000000000000 00000000cad93fd3 ffff88005ca1fb00 ffffffff8163515c
[  234.013919]  ffff88005ca1fb38 ffffffff8107b200 ffff88007c3b0000 0000000000000001
[  234.013921]  ffff88007c3b0000 ffff88007c3b0098 ffff88007c3b0098 ffff88005ca1fb48
[  234.013924] Call Trace:
[  234.013929]  [<ffffffff8163515c>] dump_stack+0x19/0x1b
[  234.013932]  [<ffffffff8107b200>] warn_slowpath_common+0x70/0xb0
[  234.013934]  [<ffffffff8107b34a>] warn_slowpath_null+0x1a/0x20
[  234.013936]  [<ffffffff813423c8>] pci_enable_msi_block+0x98/0xb0
[  234.013940]  [<ffffffffa079e545>] spec_probe+0x275/0x2c0 [spec]
[  234.013944]  [<ffffffff81327d75>] local_pci_probe+0x45/0xa0
[  234.013946]  [<ffffffff81329065>] ? pci_match_device+0xe5/0x120
[  234.013948]  [<ffffffff813291d9>] pci_device_probe+0xf9/0x150
[  234.013951]  [<ffffffff813f6417>] driver_probe_device+0x87/0x390
[  234.013953]  [<ffffffff813f67f3>] __driver_attach+0x93/0xa0
[  234.013955]  [<ffffffff813f6760>] ? __device_attach+0x40/0x40
[  234.013957]  [<ffffffff813f4183>] bus_for_each_dev+0x73/0xc0
[  234.013959]  [<ffffffff813f5e6e>] driver_attach+0x1e/0x20
[  234.013961]  [<ffffffff813f59c0>] bus_add_driver+0x200/0x2d0
[  234.013963]  [<ffffffff813f6e74>] driver_register+0x64/0xf0
[  234.013966]  [<ffffffff81328d15>] __pci_register_driver+0xa5/0xc0
[  234.013970]  [<ffffffffa07a5000>] ? 0xffffffffa07a4fff
[  234.013973]  [<ffffffffa07a501e>] spec_init+0x1e/0x1000 [spec]
[  234.013976]  [<ffffffff810020e8>] do_one_initcall+0xb8/0x230
[  234.013979]  [<ffffffff810ed4ae>] load_module+0x134e/0x1b50
[  234.013982]  [<ffffffff81316800>] ? ddebug_proc_write+0xf0/0xf0
[  234.013985]  [<ffffffff810e9743>] ? copy_module_from_fd.isra.42+0x53/0x150
[  234.013987]  [<ffffffff810ede66>] SyS_finit_module+0xa6/0xd0
[  234.013990]  [<ffffffff816458c9>] system_call_fastpath+0x16/0x1b
[  234.013992] ---[ end trace 5c4efa379a592a47 ]---
[  234.015037] spec 0000:03:00.0: irq 33 for MSI/MSI-X
[  234.015634] spec 0000:03:00.0: irq 34 for MSI/MSI-X
[  234.015642] ------------[ cut here ]------------
[  234.015647] WARNING: at fs/sysfs/dir.c:526 sysfs_add_one+0xa5/0xd0()
[  234.015648] sysfs: cannot create duplicate filename '/devices/pci0000:00/0000:00:1c.0/0000:03:00.0/msi_irqs'
[  234.015649] Modules linked in: spec(OE+) fmc(OE) xt_CHECKSUM ipt_MASQUERADE nf_nat_masquerade_ipv4 tun ip6t_rpfilter ip6t_REJECT ipt_REJECT xt_conntrack ebtable_nat ebtable_broute bridge stp llc ebtable_filter ebtables ip6table_nat nf_conntrack_ipv6 nf_defrag_ipv6 nf_nat_ipv6 ip6table_mangle ip6table_security ip6table_raw ip6table_filter ip6_tables iptable_nat nf_conntrack_ipv4 nf_defrag_ipv4 nf_nat_ipv4 nf_nat nf_conntrack iptable_mangle iptable_security iptable_raw iptable_filter coretemp kvm iTCO_wdt iTCO_vendor_support dcdbas i2c_i801 ppdev pcspkr snd_hda_codec_analog snd_hda_codec_generic snd_hda_intel snd_hda_codec sg lpc_ich mfd_core snd_hda_core snd_hwdep shpchp snd_seq snd_seq_device x38_edac parport_pc snd_pcm snd_timer snd parport soundcore edac_core binfmt_misc nfsd nfs_acl lockd grace
[  234.015682]  auth_rpcgss sunrpc ip_tables xfs libcrc32c sd_mod crc_t10dif crct10dif_generic crct10dif_common sr_mod cdrom nouveau ahci libahci video mxm_wmi wmi i2c_algo_bit drm_kms_helper serio_raw ttm libata tg3 drm ptp pps_core i2c_core floppy dm_mirror dm_region_hash dm_log dm_mod [last unloaded: spec]
[  234.015699] CPU: 1 PID: 2100 Comm: modprobe Tainted: G        W  OE  ------------   3.10.0-327.4.5.el7.x86_64 #1
[  234.015700] Hardware name: Dell Inc. Precision WorkStation T3400  /0TP412, BIOS A08 08/14/2008
[  234.015702]  ffff88005ca1f948 00000000cad93fd3 ffff88005ca1f900 ffffffff8163515c
[  234.015704]  ffff88005ca1f938 ffffffff8107b200 00000000ffffffef ffff88005dc7b2a0
[  234.015706]  ffff88005ca1f9e8 ffff88005d95d000 0000000000000000 ffff88005ca1f9a0
[  234.015708] Call Trace:
[  234.015712]  [<ffffffff8163515c>] dump_stack+0x19/0x1b
[  234.015715]  [<ffffffff8107b200>] warn_slowpath_common+0x70/0xb0
[  234.015717]  [<ffffffff8107b29c>] warn_slowpath_fmt+0x5c/0x80
[  234.015719]  [<ffffffff8125a6b5>] sysfs_add_one+0xa5/0xd0
[  234.015721]  [<ffffffff8125a8ac>] create_dir+0x7c/0xe0
[  234.015723]  [<ffffffff8125abac>] sysfs_create_subdir+0x1c/0x20
[  234.015726]  [<ffffffff8125c4fd>] internal_create_group+0x6d/0x290
[  234.015728]  [<ffffffff8125c94a>] sysfs_create_groups+0x4a/0xa0
[  234.015731]  [<ffffffff81341bdd>] populate_msi_sysfs+0x1cd/0x210
[  234.015733]  [<ffffffff81342259>] msi_capability_init+0x179/0x250
[  234.015736]  [<ffffffff81342396>] pci_enable_msi_block+0x66/0xb0
[  234.015740]  [<ffffffffa079e545>] spec_probe+0x275/0x2c0 [spec]
[  234.015742]  [<ffffffff81327d75>] local_pci_probe+0x45/0xa0
[  234.015745]  [<ffffffff81329065>] ? pci_match_device+0xe5/0x120
[  234.015747]  [<ffffffff813291d9>] pci_device_probe+0xf9/0x150
[  234.015749]  [<ffffffff813f6417>] driver_probe_device+0x87/0x390
[  234.015752]  [<ffffffff813f67f3>] __driver_attach+0x93/0xa0
[  234.015754]  [<ffffffff813f6760>] ? __device_attach+0x40/0x40
[  234.015755]  [<ffffffff813f4183>] bus_for_each_dev+0x73/0xc0
[  234.015758]  [<ffffffff813f5e6e>] driver_attach+0x1e/0x20
[  234.015759]  [<ffffffff813f59c0>] bus_add_driver+0x200/0x2d0
[  234.015762]  [<ffffffff813f6e74>] driver_register+0x64/0xf0
[  234.015764]  [<ffffffff81328d15>] __pci_register_driver+0xa5/0xc0
[  234.015768]  [<ffffffffa07a5000>] ? 0xffffffffa07a4fff
[  234.015771]  [<ffffffffa07a501e>] spec_init+0x1e/0x1000 [spec]
[  234.015773]  [<ffffffff810020e8>] do_one_initcall+0xb8/0x230
[  234.015775]  [<ffffffff810ed4ae>] load_module+0x134e/0x1b50
[  234.015777]  [<ffffffff81316800>] ? ddebug_proc_write+0xf0/0xf0
[  234.015780]  [<ffffffff810e9743>] ? copy_module_from_fd.isra.42+0x53/0x150
[  234.015782]  [<ffffffff810ede66>] SyS_finit_module+0xa6/0xd0
[  234.015785]  [<ffffffff816458c9>] system_call_fastpath+0x16/0x1b
[  234.015786] ---[ end trace 5c4efa379a592a48 ]---
[  234.015862] spec 0000:03:00.0: spec_probe: enable msi block: error -17
[  234.017045] spec 0000:03:00.0: got file "fmc/spec-init.bin", 1485236 (0x16a9b4) bytes
[  234.208615] spec 0000:03:00.0: FPGA programming successful
[  234.575195] spec 0000:03:00.0: invalid msi control: 0x0084
[  234.625012] spec 0000:03:00.0: received interrupt 32
[  234.625016] spec 0000:03:00.0: Interrupts work as expected
[  234.625021] spec 0000:03:00.0: mezzanine 0
[  234.625023]       Manufacturer: CERN
[  234.625024]       Product name: FmcAdc100m14b4cha

in addition kernel is not able to reboot

inappropriate module initialization/cleanup when parameters
*test\_irq** or **use\_msi** are used

[root@sdapc009 ~]# modprobe spec test_irq=1
    [root@sdapc009 ~]# dmesg -c
    [    0.000000] Linux version 3.10.0-327.4.5.el7.x86_64 (builder@kbuilder.dev.centos.org) (gcc version 4.8.3 20140911 (Red Hat 4.8.3-9) (GCC) ) #1 SMP Mon Jan 25 22:07:14 UTC 2016
    ...
    [  320.873923] fmc: module verification failed: signature and/or required key missing - tainting kernel
    [  320.897785] spec 0000:03:00.0:  probe for device 0003:0000
    [  320.948298] spec 0000:03:00.0: got file "fmc/spec-init.bin", 1485236 (0x16a9b4) bytes
    [  321.139869] spec 0000:03:00.0: FPGA programming successful
    [  321.556011] spec 0000:03:00.0: received interrupt 16
    [  321.556015] spec 0000:03:00.0: Interrupts work as expected
    [  321.556020] spec 0000:03:00.0: mezzanine 0
    [  321.556022]       Manufacturer: CERN
    [  321.556024]       Product name: FmcAdc100m14b4cha
    [root@sdapc009 ~]# rmmod spec
    [root@sdapc009 ~]# modprobe spec use_msi=1
    [root@sdapc009 ~]# dmesg -c
    [  452.371586] spec 0000:03:00.0:  probe for device 0003:0000
    [  452.371909] spec 0000:03:00.0: irq 32 for MSI/MSI-X
    [  452.372593] spec 0000:03:00.0: got file "fmc/spec-init.bin", 1485236 (0x16a9b4) bytes
    [  452.564164] spec 0000:03:00.0: FPGA programming successful
    [  452.931262] spec 0000:03:00.0: mezzanine 0
    [  452.931269]       Manufacturer: CERN
    [  452.931270]       Product name: FmcAdc100m14b4cha
    [root@sdapc009 ~]# rmmod spec
    [root@sdapc009 ~]# modprobe spec test_irq=1
    Message from syslogd@sdapc009 at Feb  2 18:51:12 ...
     kernel:do_IRQ: 1.224 No irq handler for vector (irq -1)
    [root@sdapc009 ~]# dmesg -c
    [  485.935712] spec 0000:03:00.0: remove
    [  491.951932] spec 0000:03:00.0:  probe for device 0003:0000
    [  491.952742] spec 0000:03:00.0: got file "fmc/spec-init.bin", 1485236 (0x16a9b4) bytes
    [  492.144313] spec 0000:03:00.0: FPGA programming successful
    [  492.511266] do_IRQ: 1.224 No irq handler for vector (irq -1)
    [  492.561012] spec 0000:03:00.0: received interrupt 32
    [  492.561017] spec 0000:03:00.0: Interrupts work as expected
    [  492.561021] spec 0000:03:00.0: mezzanine 0
    [  492.561023]       Manufacturer: CERN
    [  492.561025]       Product name: FmcAdc100m14b4cha

After reboot:

[root@sdapc009 ~]# rmmod spec
    [root@sdapc009 ~]# modprobe spec use_msi=1 test_irq=1
    [root@sdapc009 ~]# dmesg -c
    [  230.692595] spec 0000:03:00.0: remove
    [  234.013838] spec 0000:03:00.0:  probe for device 0003:0000
    [  234.013853] ------------[ cut here ]------------
    [  234.013859] WARNING: at drivers/pci/msi.c:955 pci_enable_msi_block+0x98/0xb0()
    [  234.013860] Modules linked in: spec(OE+) fmc(OE) xt_CHECKSUM ipt_MASQUERADE nf_nat_masquerade_ipv4 tun ip6t_rpfilter ip6t_REJECT ipt_REJECT xt_conntrack ebtable_nat ebtable_broute bridge stp llc ebtable_filter ebtables ip6table_nat nf_conntrack_ipv6 nf_defrag_ipv6 nf_nat_ipv6 ip6table_mangle ip6table_security ip6table_raw ip6table_filter ip6_tables iptable_nat nf_conntrack_ipv4 nf_defrag_ipv4 nf_nat_ipv4 nf_nat nf_conntrack iptable_mangle iptable_security iptable_raw iptable_filter coretemp kvm iTCO_wdt iTCO_vendor_support dcdbas i2c_i801 ppdev pcspkr snd_hda_codec_analog snd_hda_codec_generic snd_hda_intel snd_hda_codec sg lpc_ich mfd_core snd_hda_core snd_hwdep shpchp snd_seq snd_seq_device x38_edac parport_pc snd_pcm snd_timer snd parport soundcore edac_core binfmt_misc nfsd nfs_acl lockd grace
    [  234.013895]  auth_rpcgss sunrpc ip_tables xfs libcrc32c sd_mod crc_t10dif crct10dif_generic crct10dif_common sr_mod cdrom nouveau ahci libahci video mxm_wmi wmi i2c_algo_bit drm_kms_helper serio_raw ttm libata tg3 drm ptp pps_core i2c_core floppy dm_mirror dm_region_hash dm_log dm_mod [last unloaded: spec]
    [  234.013913] CPU: 1 PID: 2100 Comm: modprobe Tainted: G           OE  ------------   3.10.0-327.4.5.el7.x86_64 #1
    [  234.013915] Hardware name: Dell Inc. Precision WorkStation T3400  /0TP412, BIOS A08 08/14/2008
    [  234.013916]  0000000000000000 00000000cad93fd3 ffff88005ca1fb00 ffffffff8163515c
    [  234.013919]  ffff88005ca1fb38 ffffffff8107b200 ffff88007c3b0000 0000000000000001
    [  234.013921]  ffff88007c3b0000 ffff88007c3b0098 ffff88007c3b0098 ffff88005ca1fb48
    [  234.013924] Call Trace:
    [  234.013929]  [<ffffffff8163515c>] dump_stack+0x19/0x1b
    [  234.013932]  [<ffffffff8107b200>] warn_slowpath_common+0x70/0xb0
    [  234.013934]  [<ffffffff8107b34a>] warn_slowpath_null+0x1a/0x20
    [  234.013936]  [<ffffffff813423c8>] pci_enable_msi_block+0x98/0xb0
    [  234.013940]  [<ffffffffa079e545>] spec_probe+0x275/0x2c0 [spec]
    [  234.013944]  [<ffffffff81327d75>] local_pci_probe+0x45/0xa0
    [  234.013946]  [<ffffffff81329065>] ? pci_match_device+0xe5/0x120
    [  234.013948]  [<ffffffff813291d9>] pci_device_probe+0xf9/0x150
    [  234.013951]  [<ffffffff813f6417>] driver_probe_device+0x87/0x390
    [  234.013953]  [<ffffffff813f67f3>] __driver_attach+0x93/0xa0
    [  234.013955]  [<ffffffff813f6760>] ? __device_attach+0x40/0x40
    [  234.013957]  [<ffffffff813f4183>] bus_for_each_dev+0x73/0xc0
    [  234.013959]  [<ffffffff813f5e6e>] driver_attach+0x1e/0x20
    [  234.013961]  [<ffffffff813f59c0>] bus_add_driver+0x200/0x2d0
    [  234.013963]  [<ffffffff813f6e74>] driver_register+0x64/0xf0
    [  234.013966]  [<ffffffff81328d15>] __pci_register_driver+0xa5/0xc0
    [  234.013970]  [<ffffffffa07a5000>] ? 0xffffffffa07a4fff
    [  234.013973]  [<ffffffffa07a501e>] spec_init+0x1e/0x1000 [spec]
    [  234.013976]  [<ffffffff810020e8>] do_one_initcall+0xb8/0x230
    [  234.013979]  [<ffffffff810ed4ae>] load_module+0x134e/0x1b50
    [  234.013982]  [<ffffffff81316800>] ? ddebug_proc_write+0xf0/0xf0
    [  234.013985]  [<ffffffff810e9743>] ? copy_module_from_fd.isra.42+0x53/0x150
    [  234.013987]  [<ffffffff810ede66>] SyS_finit_module+0xa6/0xd0
    [  234.013990]  [<ffffffff816458c9>] system_call_fastpath+0x16/0x1b
    [  234.013992] ---[ end trace 5c4efa379a592a47 ]---
    [  234.015037] spec 0000:03:00.0: irq 33 for MSI/MSI-X
    [  234.015634] spec 0000:03:00.0: irq 34 for MSI/MSI-X
    [  234.015642] ------------[ cut here ]------------
    [  234.015647] WARNING: at fs/sysfs/dir.c:526 sysfs_add_one+0xa5/0xd0()
    [  234.015648] sysfs: cannot create duplicate filename '/devices/pci0000:00/0000:00:1c.0/0000:03:00.0/msi_irqs'
    [  234.015649] Modules linked in: spec(OE+) fmc(OE) xt_CHECKSUM ipt_MASQUERADE nf_nat_masquerade_ipv4 tun ip6t_rpfilter ip6t_REJECT ipt_REJECT xt_conntrack ebtable_nat ebtable_broute bridge stp llc ebtable_filter ebtables ip6table_nat nf_conntrack_ipv6 nf_defrag_ipv6 nf_nat_ipv6 ip6table_mangle ip6table_security ip6table_raw ip6table_filter ip6_tables iptable_nat nf_conntrack_ipv4 nf_defrag_ipv4 nf_nat_ipv4 nf_nat nf_conntrack iptable_mangle iptable_security iptable_raw iptable_filter coretemp kvm iTCO_wdt iTCO_vendor_support dcdbas i2c_i801 ppdev pcspkr snd_hda_codec_analog snd_hda_codec_generic snd_hda_intel snd_hda_codec sg lpc_ich mfd_core snd_hda_core snd_hwdep shpchp snd_seq snd_seq_device x38_edac parport_pc snd_pcm snd_timer snd parport soundcore edac_core binfmt_misc nfsd nfs_acl lockd grace
    [  234.015682]  auth_rpcgss sunrpc ip_tables xfs libcrc32c sd_mod crc_t10dif crct10dif_generic crct10dif_common sr_mod cdrom nouveau ahci libahci video mxm_wmi wmi i2c_algo_bit drm_kms_helper serio_raw ttm libata tg3 drm ptp pps_core i2c_core floppy dm_mirror dm_region_hash dm_log dm_mod [last unloaded: spec]
    [  234.015699] CPU: 1 PID: 2100 Comm: modprobe Tainted: G        W  OE  ------------   3.10.0-327.4.5.el7.x86_64 #1
    [  234.015700] Hardware name: Dell Inc. Precision WorkStation T3400  /0TP412, BIOS A08 08/14/2008
    [  234.015702]  ffff88005ca1f948 00000000cad93fd3 ffff88005ca1f900 ffffffff8163515c
    [  234.015704]  ffff88005ca1f938 ffffffff8107b200 00000000ffffffef ffff88005dc7b2a0
    [  234.015706]  ffff88005ca1f9e8 ffff88005d95d000 0000000000000000 ffff88005ca1f9a0
    [  234.015708] Call Trace:
    [  234.015712]  [<ffffffff8163515c>] dump_stack+0x19/0x1b
    [  234.015715]  [<ffffffff8107b200>] warn_slowpath_common+0x70/0xb0
    [  234.015717]  [<ffffffff8107b29c>] warn_slowpath_fmt+0x5c/0x80
    [  234.015719]  [<ffffffff8125a6b5>] sysfs_add_one+0xa5/0xd0
    [  234.015721]  [<ffffffff8125a8ac>] create_dir+0x7c/0xe0
    [  234.015723]  [<ffffffff8125abac>] sysfs_create_subdir+0x1c/0x20
    [  234.015726]  [<ffffffff8125c4fd>] internal_create_group+0x6d/0x290
    [  234.015728]  [<ffffffff8125c94a>] sysfs_create_groups+0x4a/0xa0
    [  234.015731]  [<ffffffff81341bdd>] populate_msi_sysfs+0x1cd/0x210
    [  234.015733]  [<ffffffff81342259>] msi_capability_init+0x179/0x250
    [  234.015736]  [<ffffffff81342396>] pci_enable_msi_block+0x66/0xb0
    [  234.015740]  [<ffffffffa079e545>] spec_probe+0x275/0x2c0 [spec]
    [  234.015742]  [<ffffffff81327d75>] local_pci_probe+0x45/0xa0
    [  234.015745]  [<ffffffff81329065>] ? pci_match_device+0xe5/0x120
    [  234.015747]  [<ffffffff813291d9>] pci_device_probe+0xf9/0x150
    [  234.015749]  [<ffffffff813f6417>] driver_probe_device+0x87/0x390
    [  234.015752]  [<ffffffff813f67f3>] __driver_attach+0x93/0xa0
    [  234.015754]  [<ffffffff813f6760>] ? __device_attach+0x40/0x40
    [  234.015755]  [<ffffffff813f4183>] bus_for_each_dev+0x73/0xc0
    [  234.015758]  [<ffffffff813f5e6e>] driver_attach+0x1e/0x20
    [  234.015759]  [<ffffffff813f59c0>] bus_add_driver+0x200/0x2d0
    [  234.015762]  [<ffffffff813f6e74>] driver_register+0x64/0xf0
    [  234.015764]  [<ffffffff81328d15>] __pci_register_driver+0xa5/0xc0
    [  234.015768]  [<ffffffffa07a5000>] ? 0xffffffffa07a4fff
    [  234.015771]  [<ffffffffa07a501e>] spec_init+0x1e/0x1000 [spec]
    [  234.015773]  [<ffffffff810020e8>] do_one_initcall+0xb8/0x230
    [  234.015775]  [<ffffffff810ed4ae>] load_module+0x134e/0x1b50
    [  234.015777]  [<ffffffff81316800>] ? ddebug_proc_write+0xf0/0xf0
    [  234.015780]  [<ffffffff810e9743>] ? copy_module_from_fd.isra.42+0x53/0x150
    [  234.015782]  [<ffffffff810ede66>] SyS_finit_module+0xa6/0xd0
    [  234.015785]  [<ffffffff816458c9>] system_call_fastpath+0x16/0x1b
    [  234.015786] ---[ end trace 5c4efa379a592a48 ]---
    [  234.015862] spec 0000:03:00.0: spec_probe: enable msi block: error -17
    [  234.017045] spec 0000:03:00.0: got file "fmc/spec-init.bin", 1485236 (0x16a9b4) bytes
    [  234.208615] spec 0000:03:00.0: FPGA programming successful
    [  234.575195] spec 0000:03:00.0: invalid msi control: 0x0084
    [  234.625012] spec 0000:03:00.0: received interrupt 32
    [  234.625016] spec 0000:03:00.0: Interrupts work as expected
    [  234.625021] spec 0000:03:00.0: mezzanine 0
    [  234.625023]       Manufacturer: CERN
    [  234.625024]       Product name: FmcAdc100m14b4cha

in addition kernel is not able to reboot