Bug 1311266

Summary:	NMI watchdog: BUG: soft lockup - CPU#2 stuck for 23s! [trinity-c2:9624]
Product:	Red Hat Enterprise Linux 7	Reporter:	Bill Peck <bpeck>
Component:	kernel-aarch64	Assignee:	David Arcari <darcari>
Status:	CLOSED WORKSFORME	QA Contact:	Jeff Bastian <jbastian>
Severity:	unspecified	Docs Contact:
Priority:	unspecified
Version:	7.3	CC:	darcari
Target Milestone:	rc
Target Release:	7.3
Hardware:	aarch64
OS:	Unspecified
Whiteboard:
Fixed In Version:		Doc Type:	Bug Fix
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2016-03-09 14:43:53 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 Bill Peck 2016-02-23 18:32:34 UTC

Description of problem:
[11107.951345] NMI watchdog: BUG: soft lockup - CPU#2 stuck for 23s! [trinity-c2:9624]
[11108.043267] Modules linked in: rfcomm dlci pppoe hidp pptp gre udp_diag tcp_diag af_key crypto_user inet_diag scsi_transport_iscsi pppox ppp_generic slhc atm sctp ip6table_filter ip6_tables iptable_filter ip_tables arc4 md4 nls_utf8 cifs rpcsec_gss_krb5 nfnetlink_queue nfnetlink_log nfnetlink bluetooth rfkill binfmt_misc tun ext4 mbcache jbd2 loop nls_koi8_u nls_cp932 ts_kmp nf_conntrack_ipv4 nf_defrag_ipv4 nf_conntrack vfat fat sg gpio_xgene_sb xgene_rng gpio_generic nfsd xfs libcrc32c mlx4_en vxlan ip6_udp_tunnel udp_tunnel ptp pps_core mlx4_core ahci_xgene libahci_platform dm_mirror dm_region_hash dm_log dm_mod [last unloaded: zlib]

[11108.737101] CPU: 2 PID: 9624 Comm: trinity-c2 Not tainted 4.5.0-0.rc5.29.el7.aarch64 #1
[11108.833179] Hardware name: HP ProLiant m400 Server/ProLiant m400 Server, BIOS U02 07/09/2015
[11108.934474] task: fffffe0fcf154d80 ti: fffffe00d40b8000 task.ti: fffffe00d40b8000
--
[11109.961507] x7 : 00000006fffeffef x6 : 000000000003ffff 
[11110.025142] x5 : fffffe0000c15ce8 x4 : fffffe0000c15ce8 
[11110.088777] x3 : 0000000000000001 x2 : 0000000000000003 
[11110.152413] x1 : 0000000000000007 x0 : 0000000000040003 

Repeated over and over while trinity test runs

Version-Release number of selected component (if applicable):
 kernel-4.5.0-0.rc5.29.el7  

How reproducible:
Unknown

Steps to Reproduce:
1. schedule /kernel/syscalls/trinity/rhel7 test against hp-mcdivitt


Additional info:
Does not reproduce on Mustang or Seattle.

Comment 3 David Arcari 2016-03-02 18:51:07 UTC

I've tried to reproduce this 3 times using 4.5.0-rc6 on hp-moonshot-02-c08 with no success.

Comment 4 David Arcari 2016-03-09 14:43:53 UTC

I have tried to reproduce this bug several more times with no success.

Comment 5 Bill Peck 2016-03-09 15:18:12 UTC

Thanks David,

I tried as well and was not able to reproduce.  I guess sun spots.

Sorry for the noise