cb09344a2c
Don't process subchannel devices where `def->driver` is not set. This fixes the following segfault: Thread 21 "nodedev-init" received signal SIGSEGV, Segmentation fault. [Switching to Thread 0x3ffb08fc910 (LWP 64303)] (gdb) bt #0 0x000003fffd1272b4 in __strcmp_vx () at /lib64/libc.so.6 #1 0x000003ffc260c3a8 in udevProcessCSS (device=0x3ff9018d130, def=0x3ff90194a90) #2 0x000003ffc260cb78 in udevGetDeviceDetails (device=0x3ff9018d130, def=0x3ff90194a90) #3 0x000003ffc260d126 in udevAddOneDevice (device=0x3ff9018d130) #4 0x000003ffc260d414 in udevProcessDeviceListEntry (udev=0x3ffa810d800, list_entry=0x3ff90001990) #5 0x000003ffc260d638 in udevEnumerateDevices (udev=0x3ffa810d800) #6 0x000003ffc260e08e in nodeStateInitializeEnumerate (opaque=0x3ffa810d800) #7 0x000003fffdaa14b6 in virThreadHelper (data=0x3ffa810df00) #8 0x000003fffc309ed6 in start_thread () #9 0x000003fffd185e66 in thread_start () (gdb) p *def $2 = { name = 0x0, sysfs_path = 0x3ff90198e80 "/sys/devices/css0/0.0.ff40", parent = 0x0, parent_sysfs_path = 0x0, parent_wwnn = 0x0, parent_wwpn = 0x0, parent_fabric_wwn = 0x0, driver = 0x0, devnode = 0x0, devlinks = 0x3ff90194670, caps = 0x3ff90194380 } Fixes: 05e6cdafa6e0 ("node_device: detect CSS devices") Reviewed-by: Boris Fiuczynski <fiuczy@linux.ibm.com> Reviewed-by: Erik Skultety <eskultet@redhat.com> Signed-off-by: Marc Hartmayer <mhartmay@linux.ibm.com>
Libvirt API for virtualization
Libvirt provides a portable, long term stable C API for managing the virtualization technologies provided by many operating systems. It includes support for QEMU, KVM, Xen, LXC, bhyve, Virtuozzo, VMware vCenter and ESX, VMware Desktop, Hyper-V, VirtualBox and the POWER Hypervisor.
For some of these hypervisors, it provides a stateful management daemon which runs on the virtualization host allowing access to the API both by non-privileged local users and remote users.
Layered packages provide bindings of the libvirt C API into other languages including Python, Perl, PHP, Go, Java, OCaml, as well as mappings into object systems such as GObject, CIM and SNMP.
Further information about the libvirt project can be found on the website:
License
The libvirt C API is distributed under the terms of GNU Lesser
General Public License, version 2.1 (or later). Some parts of the code
that are not part of the C library may have the more restrictive GNU
General Public License, version 2.0 (or later). See the files
COPYING.LESSER and COPYING for full license
terms & conditions.
Installation
Instructions on building and installing libvirt can be found on the website:
https://libvirt.org/compiling.html
Contributing
The libvirt project welcomes contributions in many ways. For most components the best way to contribute is to send patches to the primary development mailing list. Further guidance on this can be found on the website:
https://libvirt.org/contribute.html
Contact
The libvirt project has two primary mailing lists:
- libvirt-users@redhat.com (for user discussions)
- libvir-list@redhat.com (for development only)
Further details on contacting the project are available on the website: