Created attachment 853428 [details] Crash backtrace and memory map Description of problem: qemu-kvm crashes with a "double free or corruption" message on every other run of a Win8 guest. Version-Release number of selected component (if applicable): 2:1.6.1-3.fc20 How reproducible: Every time, consistently on every other run. Steps to Reproduce: qemu-kvm -cpu host -smp 1,cores=2 -m 3000 -hda disk_images/win8.img -net nic,model=virtio -net user -rtc base=localtime -sdl Actual results: *** Error in `/usr/bin/qemu-system-x86_64': double free or corruption (!prev): 0x00007fb4dc019000 *** Expected results: normal guest session Additional info: Although the backtrace says "core dumped" (see attachment), there's no core file that I can find anywhere. Host CPU: processor : 0 vendor_id : GenuineIntel cpu family : 6 model : 23 model name : Intel(R) Core(TM)2 Duo CPU L9400 @ 1.86GHz stepping : 10 microcode : 0xa0c cpu MHz : 800.000 cache size : 6144 KB physical id : 0 siblings : 2 core id : 0 cpu cores : 2 apicid : 0 initial apicid : 0 fpu : yes fpu_exception : yes cpuid level : 13 wp : yes flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe syscall nx lm constant_tsc arch_perfmon pebs bts rep_good nopl aperfmperf pni dtes64 monitor ds_cpl vmx smx est tm2 ssse3 cx16 xtpr pdcm sse4_1 xsave lahf_lm ida dtherm tpr_shadow vnmi flexpriority bogomips : 3724.09 clflush size : 64 cache_alignment : 64 address sizes : 36 bits physical, 48 bits virtual power management: processor : 1 vendor_id : GenuineIntel cpu family : 6 model : 23 model name : Intel(R) Core(TM)2 Duo CPU L9400 @ 1.86GHz stepping : 10 microcode : 0xa0c cpu MHz : 800.000 cache size : 6144 KB physical id : 0 siblings : 2 core id : 1 cpu cores : 2 apicid : 1 initial apicid : 1 fpu : yes fpu_exception : yes cpuid level : 13 wp : yes flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe syscall nx lm constant_tsc arch_perfmon pebs bts nopl aperfmperf pni dtes64 monitor ds_cpl vmx smx est tm2 ssse3 cx16 xtpr pdcm sse4_1 xsave lahf_lm ida dtherm tpr_shadow vnmi flexpriority bogomips : 3724.09 clflush size : 64 cache_alignment : 64 address sizes : 36 bits physical, 48 bits virtual power management:
Can you try: ulimit -c ulimited before running qemu. Also you may need to disable/remove abrt and/or do: echo core > /proc/sys/kernel/core_pattern
Marking as dupe of the abrt-generated bug. *** This bug has been marked as a duplicate of bug 1056279 ***