Bug 858129

Summary: Segmentation fault after performing lvconvert --thinpool vg/thick
Product: Red Hat Enterprise Linux 7 Reporter: Xiaowei Li <xiaoli>
Component: lvm2Assignee: LVM and device-mapper development team <lvm-team>
lvm2 sub component: Default / Unclassified QA Contact: Cluster QE <mspqa-list>
Status: CLOSED DUPLICATE Docs Contact:
Severity: high    
Priority: unspecified CC: agk, heinzm, jbrassow, msnitzer, prajnoha, prockai, qcai, thornber, zkabelac
Version: 7.0   
Target Milestone: rc   
Target Release: ---   
Hardware: Unspecified   
OS: Unspecified   
Whiteboard:
Fixed In Version: Doc Type: Bug Fix
Doc Text:
Story Points: ---
Clone Of:
: 858874 (view as bug list) Environment:
Last Closed: 2012-10-08 12:07:11 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:
Bug Depends On:    
Bug Blocks: 858874    
Attachments:
Description Flags
lvconvert.log none

Description Xiaowei Li 2012-09-18 03:36:37 UTC 
Description of problem:
Segmentation fault after performing lvconvert --thinpool vg/thick


Version-Release number of selected component (if applicable):
lvm2-2.02.97-1.el7.x86_64

How reproducible:


Steps to Reproduce:
1.lvcreate -l10 -n vg/thick
2.lvconvert --thinpool vg/thick -vvvv
attaching the debug log.
  
Actual results:
Segmentation fault (core dumped)

# lvs -a vg
  LV            VG   Attr     LSize  Pool Origin Data%  Move Log Copy%  Convert
  [thick_tdata] vg   Twi---t- 40.00m                                           
  [thick_tmeta] vg   twi---t- 40.00m   

# dmesg
>>>
[66842.263751] lvconvert[4058]: segfault at 7fff24467fd8 ip 0000003340a46b7b sp 00007fff24467fe0 error 6 in libc-2.16.so[3340a00000+1ad000]
>>>

Expected results:


Additional info:
Comment 4 Xiaowei Li 2012-09-27 08:06:42 UTC 
I also hit it on fedora 18 alpha.

attaching the lvconvert -vvvv log file.

=== backtrace ===
Core was generated by `lvconvert --thinpool vg/thick'.
Program terminated with signal 11, Segmentation fault.
#0  0x000000000045e808 in print_log ()
Missing separate debuginfos, use: debuginfo-install lvm2-2.02.97-1.fc18.x86_64
(gdb) bt
#0  0x000000000045e808 in print_log ()
#1  0x0000003eaac29306 in dm_task_run () from /lib64/libdevmapper.so.1.02
#2  0x0000000000495d04 in ?? ()
#3  0x0000000000495eb5 in ?? ()
#4  0x0000000000496a49 in ?? ()
#5  0x0000000000496d35 in ?? ()
#6  0x0000000000496f9d in ?? ()
#7  0x0000000000496f9d in ?? ()
#8  0x0000000000496f9d in ?? ()
#9  0x0000000000496f9d in ?? ()
#10 0x0000000000496f9d in ?? ()
#11 0x0000000000496f9d in ?? ()
#12 0x0000000000496f9d in ?? ()
#13 0x0000000000496f9d in ?? ()
#14 0x0000000000496f9d in ?? ()
#15 0x0000000000496f9d in ?? ()
Comment 5 Xiaowei Li 2012-09-27 08:07:19 UTC 
Created attachment 617939 [details]
lvconvert.log
Comment 6 Zdenek Kabelac 2012-10-08 12:07:11 UTC 

*** This bug has been marked as a duplicate of bug 858874 ***