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e988ba94aa
So, you try to start a domain, but before we even get to the part where chardev part of qemu command line is generated (and possibly missing path to unix sockets is made up) an error occurs which results in calling qemuProcessStop. This will then try to clean up the mess and possibly ends up calling unlink(NULL). ==8085== Thread 3: ==8085== Syscall param unlink(pathname) points to unaddressable byte(s) ==8085== at 0xA85EA57: unlink (in /lib64/libc-2.21.so) ==8085== by 0x213D3C24: qemuProcessCleanupChardevDevice (qemu_process.c:2866) ==8085== by 0x558D6B1: virDomainChrDefForeach (domain_conf.c:22924) ==8085== by 0x213DA9AE: qemuProcessStop (qemu_process.c:5326) ==8085== by 0x213DA2F2: qemuProcessStart (qemu_process.c:5190) ==8085== by 0x2142957F: qemuDomainObjStart (qemu_driver.c:7396) ==8085== by 0x214297DB: qemuDomainCreateWithFlags (qemu_driver.c:7450) ==8085== by 0x21429842: qemuDomainCreate (qemu_driver.c:7468) ==8085== by 0x5611B95: virDomainCreate (libvirt-domain.c:6753) ==8085== by 0x125D9A: remoteDispatchDomainCreate (remote_dispatch.h:3613) ==8085== by 0x125CB7: remoteDispatchDomainCreateHelper (remote_dispatch.h:3589) ==8085== by 0x568BF41: virNetServerProgramDispatchCall (virnetserverprogram.c:437) ==8085== Address 0x0 is not stack'd, malloc'd or (recently) free'd ==8085== Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
LibVirt : simple API for virtualization
Libvirt is a C toolkit to interact with the virtualization capabilities
of recent versions of Linux (and other OSes). It is free software
available under the GNU Lesser General Public License. Virtualization of
the Linux Operating System means the ability to run multiple instances of
Operating Systems concurrently on a single hardware system where the basic
resources are driven by a Linux instance. The library aim at providing
long term stable C API initially for the Xen paravirtualization but
should be able to integrate other virtualization mechanisms if needed.
Daniel Veillard <veillard@redhat.com>