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Bug 1639218

Summary:	iothread: qemu-kvm core dumped when define iothread object with typos
Product:	Red Hat Enterprise Linux 7	Reporter:	Longxiang Lyu <lolyu>
Component:	qemu-kvm-rhev	Assignee:	Virtualization Maintenance <virt-maint>
Status:	CLOSED DUPLICATE	QA Contact:	aihua liang <aliang>
Severity:	unspecified	Docs Contact:
Priority:	unspecified
Version:	7.6	CC:	aliang, chayang, coli, juzhang, lolyu, michen, virt-maint
Target Milestone:	rc
Target Release:	---
Hardware:	Unspecified
OS:	Unspecified
Whiteboard:
Fixed In Version:		Doc Type:	If docs needed, set a value
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2018-10-16 03:01:55 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 Longxiang Lyu 2018-10-15 10:19:10 UTC

Description of problem:
iothread: qemu-kvm core dumped when define iothread object with wrong parameters

Version-Release number of selected component (if applicable):
qemu-kvm-rhev-2.12.0-18.el7

How reproducible:
100%

Steps to Reproduce:
1. boot qemu-kvm with iothread, but pass wrong parameters
# qemu-kvm -object iothread,id=iothread0,?
qemu-kvm: util/qemu-thread-posix.c:131: qemu_cond_destroy: Assertion `cond->initialized' failed.
Aborted (core dumped)
# qemu-kvm -object iothread,id=iothread0,poll-max-ns=-1
qemu-kvm: util/qemu-thread-posix.c:131: qemu_cond_destroy: Assertion `cond->initialized' failed.
Aborted (core dumped)


Actual results:
qemu-kvm core dumped

Expected results:
qemu-kvm should warn user of the wrong parameters instead of core dump

Additional info:

Comment 3 Longxiang Lyu 2018-10-16 03:01:55 UTC

bt info:
(gdb) bt
#0  0x00007f39947b5207 in raise () at /lib64/libc.so.6
#1  0x00007f39947b68f8 in abort () at /lib64/libc.so.6
#2  0x00007f39947ae026 in __assert_fail_base () at /lib64/libc.so.6
#3  0x00007f39947ae0d2 in  () at /lib64/libc.so.6
#4  0x000055d54494536b in qemu_cond_destroy (cond=cond@entry=0x55d545f5bd68) at util/qemu-thread-posix.c:131
#5  0x000055d544713813 in iothread_instance_finalize (obj=<optimized out>) at iothread.c:138
#6  0x000055d544864182 in object_unref (type=<optimized out>, obj=0x55d545f5bce0) at qom/object.c:462
#7  0x000055d544864182 in object_unref (data=0x55d545f5bce0) at qom/object.c:476
#8  0x000055d544864182 in object_unref (obj=obj@entry=0x55d545f5bce0) at qom/object.c:924
#9  0x000055d54486715d in user_creatable_add_type (type=type@entry=0x55d545f0bfb0 "iothread", id=id@entry=0x55d545f0bf90 "iothread0", qdict=qdict@entry=0x55d545fec000, v=v@entry=
    0x55d545ff2000, errp=errp@entry=0x7ffd5fd8f760) at qom/object_interfaces.c:107
#10 0x000055d5448673a6 in user_creatable_add_opts (opts=opts@entry=0x55d545f0cdc0, errp=errp@entry=0x7ffd5fd8f760) at qom/object_interfaces.c:137
#11 0x000055d544867528 in user_creatable_add_opts_foreach (opaque=0x55d544718860 <object_create_initial>, opts=0x55d545f0cdc0, errp=<optimized out>) at qom/object_interfaces.c:161
#12 0x000055d54495283a in qemu_opts_foreach (list=<optimized out>, func=0x55d5448674e0 <user_creatable_add_opts_foreach>, opaque=opaque@entry=0x55d544718860 <object_create_initial>, errp=errp@entry=0x0)
    at util/qemu-option.c:1104
#13 0x000055d5445e4e7a in main (argc=<optimized out>, argv=<optimized out>, envp=<optimized out>) at vl.c:4392

mark as duplicate.

*** This bug has been marked as a duplicate of bug 1625567 ***