On 7/8/21 4:28 PM, Tim Wiederhake wrote:
> This simplyfies the code a bit and removes one "goto", one "VIR_FREE",
> and one "VIR_INSERT_ELEMENT_COPY".
> 
> Signed-off-by: Tim Wiederhake <[email protected]>
> ---
>  src/qemu/qemu_capabilities.c | 37 ++++++++++++++++++------------------
>  1 file changed, 18 insertions(+), 19 deletions(-)
> 

I'm not exactly sure what is causing this, but with this patch libvirtd crashes 
for me when I try to fetch capabilities:

==16567== Thread 3 rpc-worker:
==16567== Invalid read of size 8
==16567==    at 0x49CB01A: virCapabilitiesFormatGuestXML (capabilities.c:1259)
==16567==    by 0x49CB6AB: virCapabilitiesFormatXML (capabilities.c:1355)
==16567==    by 0xAE898B1: qemuConnectGetCapabilities (qemu_driver.c:1316)
==16567==    by 0x4C47014: virConnectGetCapabilities (libvirt-host.c:467)
==16567==    by 0x1328FD: remoteDispatchConnectGetCapabilities 
(remote_daemon_dispatch_stubs.h:766)
==16567==    by 0x1328A5: remoteDispatchConnectGetCapabilitiesHelper 
(remote_daemon_dispatch_stubs.h:748)
==16567==    by 0x4AB4C0F: virNetServerProgramDispatchCall 
(virnetserverprogram.c:428)
==16567==    by 0x4AB478A: virNetServerProgramDispatch 
(virnetserverprogram.c:302)
==16567==    by 0x4ABBE71: virNetServerProcessMsg (virnetserver.c:135)
==16567==    by 0x4ABBF31: virNetServerHandleJob (virnetserver.c:152)
==16567==    by 0x49AC6D5: virThreadPoolWorker (virthreadpool.c:159)
==16567==    by 0x49ABBEB: virThreadHelper (virthread.c:241)
==16567==  Address 0x8 is not stack'd, malloc'd or (recently) free'd

Michal

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