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Cisco Bug: CSCun77845 - RHEL6.4 kernel: BUG: soft lockup - CPU#34 stuck for 67s

Last Modified

Jun 11, 2020

Products (1)

  • Cisco Unified Computing System

Known Affected Releases


Description (partial)

At times during reboot of server , the server hangs and I see attched screen shot error on KVM Console. Thereafter I have top reset server to get it back

I also see following error intermittently on /var/log/messages

Mar 17 11:53:09 fusionio-c240-1 kernel: BUG: soft lockup - CPU#26 stuck for 67s! [fioa-groom0:1059]
Mar 17 11:53:09 fusionio-c240-1 kernel: Modules linked in: autofs4 nfs lockd fscache auth_rpcgss nfs_acl sunrpc 8021q garp stp llc ipv6 uinput enic(U) power_meter microcode sg ses enclosure i2c_i801 i2c_core iTCO_wdt iTCO_vendor_support shpchp ext4 mbcache jbd2 sd_mod crc_t10dif megaraid_sas iomemory_vsl(P)(U) wmi dm_mirror dm_region_hash dm_log dm_mod [last unloaded: scsi_wait_scan]

C240M3 directlty attached to FI 6248 and installed 2 Fusion-Io cards.
UCSM - 2.2(1b)
VIC1225 -2.2(1b)BIOS - C240M3.1.5.4f.0.111320130505
CIMC -1.5(4)
OS - RHEL6.4 (2.6.32-358.el6.x86_64)
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