On Mon, Aug 07, 2006 at 06:04:16AM -0400, Daniel Veillard wrote: > On Mon, Aug 07, 2006 at 11:55:22AM +0200, Philippe Berthault wrote: > > I've applied your patch on my system (RHEL-AS4, update 2) with Xen > > 3.0.2-2. The compilation of virsh is OK but the execution is failed. The > > virsh vcpuinfo command returns all vcpus of the specified domain (the > > list is OK) but after the last vcpu of the list, I've the following message: > > > > *** glibc detected *** free(): invalid next size (fast): 0x08051dd8 *** > > Aborted > > > > With the domain-0, the virsh vcpuinfo is OK. I haven't investigated with > > the debugger but perhaps you have an idea of what is the problem ? > > Hum, valgrind should be able to pinpoint where the error occurs exactly I've found the problem - in the last parameter to virDomainGetVcpuInfo I thought the cpumaplen parameter was spposed to be the size of the entire cpumap, when it is only supposed to be the size of one dimension of it. So, inside virDomainGetVcpuInfo it then did a memset on the cpumap using cpumaplen * nrVirtCpu, which obviously overflowed if nrVirtCpu was greater than one. I'll fix this before committing. Regards, Dan. -- |=- Red Hat, Engineering, Emerging Technologies, Boston. +1 978 392 2496 -=| |=- Perl modules: http://search.cpan.org/~danberr/ -=| |=- Projects: http://freshmeat.net/~danielpb/ -=| |=- GnuPG: 7D3B9505 F3C9 553F A1DA 4AC2 5648 23C1 B3DF F742 7D3B 9505 -=|