Bug 818086

Summary: insmod softdog: Device or resource busy
Product: Red Hat Enterprise Linux 6 Reporter: Niklaus Wirth <oceandeep.cn>
Component: kernelAssignee: Prarit Bhargava <prarit>
Status: CLOSED NOTABUG QA Contact: Red Hat Kernel QE team <kernel-qe>
Severity: urgent Docs Contact:
Priority: unspecified    
Version: 6.1   
Target Milestone: rc   
Target Release: ---   
Hardware: i686   
OS: Linux   
Whiteboard:
Fixed In Version: Doc Type: Bug Fix
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 2012-05-04 13:16:58 UTC Type: Bug
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Embargoed:

Description Niklaus Wirth 2012-05-02 07:47:28 UTC 
Description of problem:


Version-Release number of selected component (if applicable):


How reproducible:


Steps to Reproduce:
1.when I install skybility HA for Redhat,I cannot finish it,cos I get the messj
2.[root@root]# cat /proc/misc
223 uinput
184 microcode
130 watchdog
 57 tgt
 58 device-mapper
 59 network_throughput
 60 network_latency
 61 cpu_dma_latency
 62 crash
144 nvram
228 hpet
231 snapshot
227 mcelog
 63 vga_arbiter
[root@ahngnapp119 dev]# 
3.
  
Actual results:
[root@root]# /sbin/modprobe softdog
FATAL: Error inserting softdog (/lib/modules/2.6.32-131.0.15.el6.i686/kernel/drivers/watchdog/softdog.ko): Device or resource busy

dmesg
SoftDog: cannot register miscdev on minor=130 (err=-16

Expected results:
plz help to support the trouble,thxs!


Additional info:
Comment 2 Richard W.M. Jones 2012-05-02 08:54:01 UTC 
-> kernel.

'watchdog' is a userspace program.
Comment 3 Niklaus Wirth 2012-05-02 09:41:42 UTC 
 2.6.32-131.0.15.el6.i686 #1 SMP Tue May 10 15:42:28 EDT 2011 i686 i686 i386 GNU/Linux
Comment 4 Niklaus Wirth 2012-05-02 09:43:41 UTC 
(In reply to comment #2)
> -> kernel.
> 
> 'watchdog' is a userspace program.

 2.6.32-131.0.15.el6.i686 #1 SMP Tue May 10 15:42:28 EDT 2011 i686 i686 i386 GNU/Linux
Comment 5 Prarit Bhargava 2012-05-03 18:54:20 UTC 
It's likely because another module is using the watchdog.  Can you do a lsmod and attach it to this BZ?

Thanks,

P.
Comment 6 Niklaus Wirth 2012-05-04 05:17:46 UTC 
(In reply to comment #5)
> It's likely because another module is using the watchdog.  Can you do a lsmod
> and attach it to this BZ?
> 
> Thanks,
> 
> P.

plz check it,thank u!

[root@root ~]# lsmod
Module                  Size  Used by
ext3                  116854  0 
jbd                    44278  1 ext3
sunrpc                197485  1 
cpufreq_ondemand        8486  24 
acpi_cpufreq            7320  1 
nf_conntrack_netbios_ns      885  0 
nf_conntrack_broadcast     1097  1 nf_conntrack_netbios_ns
nf_conntrack_ftp       10449  0 
ip6t_REJECT             3961  2 
nf_conntrack_ipv6       7117  9 
nf_defrag_ipv6          9847  1 nf_conntrack_ipv6
xt_state                1006  9 
nf_conntrack           66010  5 nf_conntrack_netbios_ns,nf_conntrack_broadcast,nf_conntrack_ftp,nf_conntrack_ipv6,xt_state
ip6table_filter         2219  1 
ip6_tables             10809  1 ip6table_filter
ipv6                  266112  71 ip6t_REJECT,nf_conntrack_ipv6,nf_defrag_ipv6
dm_mirror              11652  0 
dm_region_hash         10063  1 dm_mirror
dm_log                  8520  2 dm_mirror,dm_region_hash
uinput                  6218  0 
bnx2                   67858  0 
sg                     24778  0 
microcode              12419  0 
serio_raw               3760  0 
i2c_i801                9473  0 
i2c_core               25799  1 i2c_i801
iTCO_wdt                9644  1 
iTCO_vendor_support     2382  1 iTCO_wdt
i7core_edac            14786  0 
edac_core              36981  1 i7core_edac
ext4                  327734  3 
mbcache                 5918  2 ext3,ext4
jbd2                   73784  1 ext4
sd_mod                 34239  5 
crc_t10dif              1191  1 sd_mod
sr_mod                 14219  0 
cdrom                  34036  1 sr_mod
mptsas                 49134  4 
mptscsih               31656  1 mptsas
mptbase                86924  2 mptsas,mptscsih
scsi_transport_sas     26901  1 mptsas
qla2xxx               324527  0 
scsi_transport_fc      41015  1 qla2xxx
scsi_tgt               10035  1 scsi_transport_fc
pata_acpi               2487  0 
ata_generic             2555  0 
ata_piix               19080  0 
dm_mod                 63127  2 dm_mirror,dm_log
[root@root ~]#
Comment 7 Prarit Bhargava 2012-05-04 13:16:58 UTC 
iTCO_wdt                9644  1 
iTCO_vendor_support     2382  1 iTCO_wdt

These two modules grab the watchdog device.  Unload them and you should be able to load the softdog module.

P.