February 2014 - Devel - libvirt List Archives

[libvirt] [PATCH] virsh: initialize str to NULL for solving a build issue
by Chen Hanxiao 25 Feb '14

25 Feb '14

Fix a -Werror=maybe-uninitialized issue. Signed-off-by: Chen Hanxiao <chenhanxiao(a)cn.fujitsu.com> --- tools/virsh-domain-monitor.c | 2 +- tools/virsh-domain.c | 2 +- 2 files changed, 2 insertions(+), 2 deletions(-) diff --git a/tools/virsh-domain-monitor.c b/tools/virsh-domain-monitor.c index c67b833..1192565 100644 --- a/tools/virsh-domain-monitor.c +++ b/tools/virsh-domain-monitor.c @@ -218,7 +218,7 @@ VIR_ENUM_IMPL(vshDomainPMSuspendedReason, static const char * vshDomainStateReasonToString(int state, int reason) { - const char *str; + const char *str = NULL; switch ((virDomainState) state) { case VIR_DOMAIN_NOSTATE: str = vshDomainNostateReasonTypeToString(reason); diff --git a/tools/virsh-domain.c b/tools/virsh-domain.c index 8e42300..3e73340 100644 --- a/tools/virsh-domain.c +++ b/tools/virsh-domain.c @@ -10399,7 +10399,7 @@ VIR_ENUM_IMPL(vshDomainEventCrashed, static const char * vshDomainEventDetailToString(int event, int detail) { - const char *str; + const char *str = NULL; switch ((virDomainEventType) event) { case VIR_DOMAIN_EVENT_DEFINED: str = vshDomainEventDefinedTypeToString(detail); -- 1.8.5.3

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[libvirt] [PATCH] virsh: mark CPU usage field names as translatable
by Ján Tomko 25 Feb '14

25 Feb '14

My commit ac75801 removed the translation markers when moving the field names into an array. --- tools/virsh-host.c | 12 ++++++------ 1 file changed, 6 insertions(+), 6 deletions(-) diff --git a/tools/virsh-host.c b/tools/virsh-host.c index 502203b..6a04f9d 100644 --- a/tools/virsh-host.c +++ b/tools/virsh-host.c @@ -352,12 +352,12 @@ VIR_ENUM_IMPL(vshCPUStats, VSH_CPU_LAST, VIR_NODE_CPU_STATS_UTILIZATION); const char *vshCPUOutput[] = { - "user:", - "system:", - "idle:", - "iowait:", - "intr:", - "usage:" + N_("user:"), + N_("system:"), + N_("idle:"), + N_("iowait:"), + N_("intr:"), + N_("usage:") }; static bool -- 1.8.3.2

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[libvirt] [PATCH v1 0/2] support dumping guest memory in compressed format
by Qiao Nuohan 25 Feb '14

25 Feb '14

dumping guest's memroy is introduced without compression supported, and this is a freature regression of 'virsh dump --memory-only'. This patchset is used to add support in libvirt side to make qemu dump guest's memory in kdump-compressed format and please refer the following address to see implementation of the qemu side, the lastest version of qemu side is v9(ready for being queued). http://lists.nongnu.org/archive/html/qemu-devel/2014-02/msg03016.html qiaonuohan (2): make qemu dump memory in kdump-compressed format add dump_memory_format in qemu.conf include/libvirt/libvirt.h.in | 19 ++++++++++---- src/qemu/libvirtd_qemu.aug | 1 + src/qemu/qemu.conf | 13 +++++++++- src/qemu/qemu_conf.c | 3 +++ src/qemu/qemu_conf.h | 2 ++ src/qemu/qemu_driver.c | 51 +++++++++++++++++++++++++++++++++++--- src/qemu/qemu_monitor.c | 6 ++--- src/qemu/qemu_monitor.h | 3 ++- src/qemu/qemu_monitor_json.c | 4 ++- src/qemu/qemu_monitor_json.h | 3 ++- src/qemu/test_libvirtd_qemu.aug.in | 1 + tests/qemumonitorjsontest.c | 2 +- tools/virsh-domain.c | 42 +++++++++++++++++++++++++++++++ 13 files changed, 133 insertions(+), 17 deletions(-)

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[libvirt] QEMU accepted for Google Summer of Code 2014
by Stefan Hajnoczi 25 Feb '14

25 Feb '14

Great news: the organizations for Google Summer of Code 2014 have been announced and QEMU is participating again this year! If you are a student who is interested in a 12-week full-time project working on QEMU, KVM, or libvirt this summer, head over to our project ideas page: http://qemu-project.org/Google_Summer_of_Code_2014 Student applications are open from March 10th to March 21st. See the Google Summer of Code timeline for details: https://www.google-melange.com/gsoc/events/google/gsoc2014 Also be sure to read the FAQs on the Summer of Code website to find out about eligibility, time requirements, and how the process works: https://www.google-melange.com/gsoc/document/show/gsoc_program/google/gsoc2… Thanks to our mentors for posting their project ideas on time, thus helping us produce a good organization application. I will send a private email to mentors to kickstart the process for GSoC 2014. Stefan

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[libvirt] [PATCH 0/2] virsh cleanups
by Eric Blake 25 Feb '14

25 Feb '14

Followups written based on review to my 'virsh event' addition. Eric Blake (2): virsh: use more compact VIR_ENUM_IMPL virsh: kill over-engineered asprintf failure recovery tools/virsh-domain-monitor.c | 280 +++++++++++++++------------------- tools/virsh-domain.c | 347 ++++++++++++++++++------------------------- tools/virsh-network.c | 36 ++--- tools/virsh-pool.c | 139 ++++++----------- tools/virsh-volume.c | 104 ++++--------- 5 files changed, 358 insertions(+), 548 deletions(-) -- 1.8.5.3

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[libvirt] [PATCH 0/4] libxl: improve domain lifecycle event support
by Jim Fehlig 25 Feb '14

25 Feb '14

This series is the result of a report from Kim Larry [1] about missing shutdown events in the libxl driver. Kim's report revealed that the libxl driver was ignoring the <on_*> domain lifecycle event configuration! Patch1 adds support for the four standard actions (destroy, restart, preserve, and rename-restart) of <on_*>. Patch2 queues the shutdown event earlier in the shutdown handler, to avoid it being delivered after the a start event in the case of a restart. Patches 3 and 4 add support for the extra <on_crash> actions coredump-destroy and coredump-restart. [1] https://www.redhat.com/archives/libvir-list/2014-February/msg01121.html Jim Fehlig (4): libxl: honor domain lifecycle event configuration libxl: queue domain event earlier in shutdown handler libxl: add dump dir to libxlDriverConfig object libxl: handle on_crash coredump actions src/libxl/libxl_conf.c | 3 + src/libxl/libxl_conf.h | 2 + src/libxl/libxl_driver.c | 148 ++++++++++++++++++++++++++++++++++++++--------- 3 files changed, 125 insertions(+), 28 deletions(-) -- 1.8.1.4

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[libvirt] [PATCH] Document the keyboard as a valid input type
by Ján Tomko 25 Feb '14

25 Feb '14

Commit bc18373 added a new input type, but didn't change the documentation. --- docs/formatdomain.html.in | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-) diff --git a/docs/formatdomain.html.in b/docs/formatdomain.html.in index ea1a97b..400de07 100644 --- a/docs/formatdomain.html.in +++ b/docs/formatdomain.html.in @@ -3847,15 +3847,16 @@ qemu-kvm -net nic,model=? /dev/null ... <devices> <input type='mouse' bus='usb'/> + <input type='keyboard' bus='usb'/> </devices> ...</pre> <dl> <dt><code>input</code></dt> <dd>The <code>input</code> element has one mandatory attribute, - the <code>type</code> whose value can be either 'mouse' or - 'tablet'. The latter provides absolute - cursor movement, while the former uses relative movement. The optional + the <code>type</code> whose value can be 'mouse', 'tablet' or + 'keyboard'. The tablet provides absolute cursor movement, + while the mouse uses relative movement. The optional <code>bus</code> attribute can be used to refine the exact device type. It takes values "xen" (paravirtualized), "ps2" and "usb".</dd> </dl> -- 1.8.3.2

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[libvirt] [PATCH] virsh: Don't leak buffer if GetFDs fails in cmdCreate
by Ján Tomko 25 Feb '14

25 Feb '14

Change the logic of the function to return false by default and move the freeing of the buffer to the cleanup section. https://bugzilla.redhat.com/show_bug.cgi?id=1067338 --- tools/virsh-domain.c | 29 ++++++++++++++++------------- 1 file changed, 16 insertions(+), 13 deletions(-) diff --git a/tools/virsh-domain.c b/tools/virsh-domain.c index 00ace11..59e843f 100644 --- a/tools/virsh-domain.c +++ b/tools/virsh-domain.c @@ -6518,7 +6518,7 @@ cmdCreate(vshControl *ctl, const vshCmd *cmd) { virDomainPtr dom; const char *from = NULL; - bool ret = true; + bool ret = false; char *buffer; #ifndef WIN32 bool console = vshCommandOptBool(cmd, "console"); @@ -6534,7 +6534,7 @@ cmdCreate(vshControl *ctl, const vshCmd *cmd) return false; if (cmdStartGetFDs(ctl, cmd, &nfds, &fds) < 0) - return false; + goto cleanup; if (vshCommandOptBool(cmd, "paused")) flags |= VIR_DOMAIN_START_PAUSED; @@ -6545,20 +6545,23 @@ cmdCreate(vshControl *ctl, const vshCmd *cmd) dom = virDomainCreateXMLWithFiles(ctl->conn, buffer, nfds, fds, flags); else dom = virDomainCreateXML(ctl->conn, buffer, flags); - VIR_FREE(buffer); - if (dom != NULL) { - vshPrint(ctl, _("Domain %s created from %s\n"), - virDomainGetName(dom), from); -#ifndef WIN32 - if (console) - cmdRunConsole(ctl, dom, NULL, 0); -#endif - virDomainFree(dom); - } else { + if (!dom) { vshError(ctl, _("Failed to create domain from %s"), from); - ret = false; + goto cleanup; } + + vshPrint(ctl, _("Domain %s created from %s\n"), + virDomainGetName(dom), from); +#ifndef WIN32 + if (console) + cmdRunConsole(ctl, dom, NULL, 0); +#endif + virDomainFree(dom); + ret = true; + +cleanup: + VIR_FREE(buffer); VIR_FREE(fds); return ret; } -- 1.8.3.2

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[libvirt] [PATCH] Fix memory leak when lookup pool list with invalid type option
by shyu 25 Feb '14

25 Feb '14

There will be memory leak when lookup pool list with invalid type option https://bugzilla.redhat.com/show_bug.cgi?id=1069068 ==23060== Memcheck, a memory error detector ==23060== Copyright (C) 2002-2012, and GNU GPL'd, by Julian Seward et al. ==23060== Using Valgrind-3.8.1 and LibVEX; rerun with -h for copyright info ==23060== Command: virsh pool-list --type invalid ==23060== error: Invalid pool type ==23060== ==23060== HEAP SUMMARY: ==23060== in use at exit: 138,383 bytes in 1,559 blocks ==23060== total heap usage: 4,199 allocs, 2,640 frees, 21,372,544 bytes allocated ==23060== ==23060== LEAK SUMMARY: ==23060== definitely lost: 8 bytes in 1 blocks ==23060== indirectly lost: 0 bytes in 0 blocks ==23060== possibly lost: 0 bytes in 0 blocks ==23060== still reachable: 138,375 bytes in 1,558 blocks ==23060== suppressed: 0 bytes in 0 blocks ==23060== Rerun with --leak-check=full to see details of leaked memory ==23060== ==23060== For counts of detected and suppressed errors, rerun with: -v ==23060== ERROR SUMMARY: 0 errors from 0 contexts (suppressed: 8 from 6) Signed-off-by: shyu <shyu(a)redhat.com> --- tools/virsh-pool.c | 1 + 1 files changed, 1 insertions(+), 0 deletions(-) diff --git a/tools/virsh-pool.c b/tools/virsh-pool.c index 642b078..db4d3ae 100644 --- a/tools/virsh-pool.c +++ b/tools/virsh-pool.c @@ -859,6 +859,7 @@ cmdPoolList(vshControl *ctl, const vshCmd *cmd ATTRIBUTE_UNUSED) for (i = 0; i < npoolTypes; i++) { if ((poolType = virStoragePoolTypeFromString(poolTypes[i])) < 0) { vshError(ctl, "%s", _("Invalid pool type")); + VIR_FREE(*poolTypes); VIR_FREE(poolTypes); return false; } -- 1.7.1

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[libvirt] block pull/commit for non-local storage
by Peter Krempa 25 Feb '14

25 Feb '14

Hi, with my recent work into snapshots with native libgfapi support I've run into an issue with libvirt APIs used to delete snapshots by management apps. The management apps use the APIs to do the job: int virDomainBlockCommit(virDomainPtr dom, const char *disk, const char *base, const char *top, unsigned long bandwidth, unsigned int flags) int virDomainBlockPull(virDomainPtr dom, const char *disk, unsigned long bandwidth, unsigned int flags) int virDomainBlockRebase(virDomainPtr dom, const char *disk, const char *base, unsigned long bandwidth, unsigned int flags) As you can see in the prototypes of these functions (and from the docs for them which I'm not going to copy here) the user can provide the disk specification in two possible options: 1) a full path if it's unambiguous - this is file centric and requires the file to be in the local filesystem 2) a disk name "vda" - this is selected automatically by libvirt but allows to specify only the top image. For systems that want to use remote storage without local representation such as gluster+libgfapi, this doesn't allow to use the APIs to start block jobs. To solve this issue we need a way to specify paths on remote storage in some way. Below are two options we've discussed on IRC. 1) Use URIs along with the file path to specify disk images. This option would add a new, possibly well documented URIs to specify paths for disk images. These would be libvirt defined URIs (but surprisingly "similar" to qemu URIS) so that hypervisors with different storage specification would need a conversion. This would allow to specify the targets as: vda - disk name /path/to/file - legacy way, path file:///path/to/file - new way of file paths block:///dev/blah - new way, block devs gluster://server/vol/img - new way, remote images ... Possible caveats: RBD for example allows to use multiple hosts and we'd need to introduce a possibility to specify it if we'd add support for this on rbd. 2) Export the image chain in the XML and allow to use indexed disk names This option would require to export the backing chain in the XML in some way, either the existing disk source specification in multiple elements (which I don't like as it is a bit convoluted), or possibly again via URIs. Then the user would be allowed to specify vda[2] for the second backing image of the vda disk. With this the internal representations of the backing chain would be used without the need for the user to specify path. A possible caveat here is that if backing chains for some reason will be converted to backing trees, this approach will be invalid. 3) ? anyone suggesting something better? :) Thanks in advance for suggestions and/or new ideas. Peter

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