Bug 545400

Summary: libvirt segfaults on virt-viewer connection
Product: [Fedora] Fedora Reporter: Sven Lankes <sven>
Component: libvirtAssignee: Richard W.M. Jones <rjones>
Status: CLOSED UPSTREAM QA Contact: Fedora Extras Quality Assurance <extras-qa>
Severity: medium Docs Contact:
Priority: low    
Version: 12CC: berrange, clalance, crobinso, fedora-bugzilla, itamar, jforbes, rjones, veillard, virt-maint
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Hardware: x86_64   
OS: Linux   
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Fixed In Version: Doc Type: Bug Fix
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Last Closed: 2009-12-10 12:01:58 EST Type: ---
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oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
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Description Sven Lankes 2009-12-08 08:31:32 EST
Created attachment 376900 [details]
Backtrace

Description of problem:

When I try to connect to a remote f12 vm from my local f12 using virt-viewer and ssh, libvirt segfaults.

Version-Release number of selected component (if applicable):

libvirt-0.7.1-15.fc12.x86_64
virt-viewer-0.2.0-1.fc12.x86_64

How reproducible:

virt-viewer -c qemu+ssh://root@host dns

Dec  8 14:02:08 frooknuckle kernel: libvirtd[5848]: segfault at 0 ip 0000003a8bb1bdb6 sp 00007fa6cff82aa8 error 4 in libc-2.11.
so[3a8ba00000+16f000]
Comment 1 Richard W.M. Jones 2009-12-10 09:41:03 EST
Here's where it fails:

#0  __strcmp_sse42 () at ../sysdeps/x86_64/multiarch/strcmp.S:129
#1  0x000000000043111f in qemudOpen (conn=0x7fffe4000960, auth=<value optimized out>, flags=<value optimized out>)
    at qemu_driver.c:2835

I suspect that conn->uri->path is NULL.

Does it work if you use a URI with a trailing slash, ie:

virt-viewer -c qemu+ssh://root@host/ dns
Comment 2 Richard W.M. Jones 2009-12-10 09:41:32 EST
Also try:

virt-viewer -c qemu+ssh://root@host/system dns
Comment 3 Sven Lankes 2009-12-10 10:54:00 EST
> Does it work if you use a URI with a trailing slash, ie:

virt-viewer -c qemu+ssh://root@host/ dns

results in:

error : qemudOpen:2839 : internal error unexpected QEMU URI path '/', try qemu:///system

no segfault, but no connection either

> Also try:
> virt-viewer -c qemu+ssh://root@host/system dns  

That one works. No segfault.
Comment 4 Richard W.M. Jones 2009-12-10 11:40:38 EST
Patch posted upstream.
Comment 6 Catalin BOIE 2010-02-23 03:34:01 EST
Can we have an updated version in F12, please?
We are affected by this bug: libvirtd does not start (segmentation fault).