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Bug 545786

Summary: tgtadm segfaults upon "tgtadm --mode connection --op delete"
Product: Red Hat Enterprise Linux 5 Reporter: RHEL Program Management <pm-rhel>
Component: scsi-target-utilsAssignee: Mike Christie <mchristi>
Status: CLOSED ERRATA QA Contact: qe-baseos-daemons
Severity: high Docs Contact:
Priority: high    
Version: 5.3CC: coughlan, dkovalsk, mchristi, mnovacek, partner, plyons, pm-eus, sghosh, syeghiay
Target Milestone: rcKeywords: ZStream
Target Release: ---   
Hardware: x86_64   
OS: Linux   
Whiteboard:
Fixed In Version: Doc Type: Bug Fix
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 2010-01-26 10:19:33 UTC Type: ---
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Embargoed:
Bug Depends On: 511002    
Bug Blocks:    

Description RHEL Program Management 2009-12-09 11:32:32 UTC 
This bug has been copied from bug #511002 and has been proposed
to be backported to 5.4 z-stream (EUS).
Comment 7 michal novacek 2010-01-15 15:46:51 UTC 
---scsi-target-utils-0.0-5.20080917snap.el5 

with ongoing i/o from the client.

$ tgt-admin --show
	Target 1: iqn.2001-04.com.dell-pe-sc1435-01-1
		System information:
			Driver: iscsi
			State: ready
		I_T nexus information:
			I_T nexus: 1
				Initiator: iqn.1994-05.com.redhat:b74171af9987
				Connection: 0
					IP Address: 192.168.122.152
	...
$ tgtadm --mode connection --op delete --tid=1 --sid=1 --cid=0
	Segmentation fault
$ tail /var/log/messages
	...
	Jan 15 09:56:17 dell-pe-sc1435-01 kernel: tgtd[23268]: segfault at 0000000000000000 rip 0000000000000000 rsp 00007fffe61a4178 error 14
	Jan 15 09:56:17 dell-pe-sc1435-01 tgtd: conn_close_force(197) close 1 0 
	Jan 15 09:56:17 dell-pe-sc1435-01 tgtd: conn_close(88) connection closed 0x12cb3d08 1 
	Jan 15 09:56:18 dell-pe-sc1435-01 kernel: tgtadm[26467]: segfault at 0000000002613040 rip 0000000000401eb0 rsp 00007fffa3c93a00 error 4



----scsi-target-utils-0.0-6.20091205snap.el5_4.1

with ongoing i/o on client

$ tgt-admin --show
	Target 1: iqn.2001-04.com.dell-pe-sc1435-01-1
		System information:
			Driver: iscsi
			State: ready
		I_T nexus information:
			I_T nexus: 1
				Initiator: iqn.1994-05.com.redhat:b74171af9987
				Connection: 0
					IP Address: 192.168.122.152
$ tgtadm --mode connection --op delete --tid=1 --sid=1 --cid=0
$ tgtadm --mode connection --op delete --tid=1 --sid=2 --cid=0
# tgt-admin --show
Target 1: iqn.2001-04.com.dell-pe-sc1435-01-5
    System information:
        Driver: iscsi
        State: ready
    I_T nexus information:
        I_T nexus: 3
            Initiator: iqn.1994-05.com.redhat:b74171af9987
            Connection: 0
                IP Address: 192.168.122.152
...
$ tail /var/log/messages 
Jan 15 10:40:26 dell-pe-sc1435-01 tgtd: conn_close_force(233) close 1 0 
Jan 15 10:40:26 dell-pe-sc1435-01 tgtd: conn_close(100) connection closed, 0x17edd198 1 
Jan 15 10:40:26 dell-pe-sc1435-01 tgtd: conn_close(106) sesson 0x17edd430 1 
Jan 15 10:40:55 dell-pe-sc1435-01 tgtd: conn_close_force(233) close 2 0 
Jan 15 10:40:55 dell-pe-sc1435-01 tgtd: conn_close(100) connection closed, 0x17edd198 1 
Jan 15 10:40:55 dell-pe-sc1435-01 tgtd: conn_close(106) sesson 0x17edd400 1 

on iscsi client, there is connection recovery:
$ tail /var/log/messages
Jan 15 16:41:14 localhost iscsid: conn 0 login rejected: initiator error - target not found (02/03)
Jan 15 16:42:51 localhost kernel:  connection1:0: detected conn error (1011)
Jan 15 16:42:52 localhost iscsid: Kernel reported iSCSI connection 1:0 error (1011) state (3)
Jan 15 16:42:55 localhost iscsid: connection1:0 is operational after recovery (1 attempts)
Jan 15 16:43:20 localhost kernel:  connection1:0: detected conn error (1011)
Jan 15 16:43:21 localhost iscsid: Kernel reported iSCSI connection 1:0 error (1011) state (3)
Jan 15 16:43:24 localhost iscsid: connection1:0 is operational after recovery (1 attempts)
...
Comment 9 errata-xmlrpc 2010-01-26 10:19:33 UTC 
An advisory has been issued which should help the problem
described in this bug report. This report is therefore being
closed with a resolution of ERRATA. For more information
on therefore solution and/or where to find the updated files,
please follow the link below. You may reopen this bug report
if the solution does not work for you.

http://rhn.redhat.com/errata/RHBA-2010-0067.html