Re: [Xen-devel] [libvirt test] 58119: regressions - FAIL

[Jim Fehlig <jfehlig@xxxxxxxx>]

On 06/18/2015 09:18 AM, Ian Campbell wrote:
> On Mon, 2015-06-15 at 15:30 +0100, Anthony PERARD wrote:
> > The "No response from client ..." appear only on armhf as far as I can
> > tell.
> Indeed, and I just noticed while developing osstest for arm64 that the
> daemon is segfaulting, and we even managed to collect a core dump, not
> this time but in:
>
> http://logs.test-lab.xenproject.org/osstest/logs/58693/test-armhf-armhf-libvirt/info.html
>
> Although the core and the build stuff is all there it was a bit easier
> to just install gdb on the arm64 system in my hands, it reports:
>
> Program terminated with signal SIGSEGV, Segmentation fault.
> #0  malloc_consolidate (av=av@entry=0x7fa0000020) at malloc.c:4151
> 4151    malloc.c: No such file or directory.
> (gdb) bt
> #0  malloc_consolidate (av=av@entry=0x7fa0000020) at malloc.c:4151
> #1  0x0000007faf2adc50 in _int_malloc (av=av@entry=0x7fa0000020, 
> bytes=bytes@entry=1100) at malloc.c:3423
> #2  0x0000007faf2afc20 in __GI___libc_malloc (bytes=bytes@entry=1100) at 
> malloc.c:2891
> #3  0x0000007faf2b0580 in __GI___libc_realloc (oldmem=0x0, bytes=1100) at 
> malloc.c:2972
> #4  0x0000007faf434d98 in virReallocN () from /usr/local/lib/libvirt.so.0
> #5  0x0000007faf438f34 in virBufferGrow () from /usr/local/lib/libvirt.so.0
> #6  0x0000007faf4397b8 in virBufferVasprintf () from /usr/local/lib/libvirt.so.0
> #7  0x0000007faf439700 in virBufferAsprintf () from /usr/local/lib/libvirt.so.0
> #8  0x0000007faf51b7f0 in virDomainObjFormat () from /usr/local/lib/libvirt.so.0
> #9  0x0000007faf51c078 in virDomainSaveStatus () from 
> /usr/local/lib/libvirt.so.0
Did your libvirt fix help here too?  libxlDomainSetVcpuAffinities() is called 
prior to virDomainSaveStatus, and may have freed some of the virDomainObj's memory.
Regards,
Jim
> #10 0x0000007fac510d88 in libxlDomainStart () from 
> /usr/local/lib/libvirt/connection-driver/libvirt_driver_libxl.so
> #11 0x0000007fac5136c4 in libxlDomainCreateXML () from 
> /usr/local/lib/libvirt/connection-driver/libvirt_driver_libxl.so
> #12 0x0000007faf5977c0 in virDomainCreateXML () from /usr/local/lib/libvirt.so.0
> #13 0x00000055887730c8 in remoteDispatchDomainCreateXML ()
> #14 0x0000005588772fb8 in remoteDispatchDomainCreateXMLHelper ()
> #15 0x00000055887cb694 in virNetServerProgramDispatchCall ()
> #16 0x00000055887cb220 in virNetServerProgramDispatch ()
> #17 0x00000055887c2810 in virNetServerProcessMsg ()
> #18 0x00000055887c2910 in virNetServerHandleJob ()
> #19 0x0000007faf4ba738 in virThreadPoolWorker () from 
> /usr/local/lib/libvirt.so.0
> #20 0x0000007faf4b989c in virThreadHelper () from /usr/local/lib/libvirt.so.0
> #21 0x0000007faf388e34 in start_thread (arg=0x7fae6540c0) at 
> pthread_create.c:311
> #22 0x0000007faf2ff7c0 in clone () at 
> ../ports/sysdeps/unix/sysv/linux/aarch64/nptl/../clone.S:96
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