Red Hat Bugzilla – Bug 603075
ElectricFence doesn't support posix_memalign
Last modified: 2015-05-04 21:35:21 EDT
Description of problem: Trying to running qemu with electric fence results in $summary Version-Release number of selected component (if applicable): qemu-kvm-0.12.1.2-2.71.el6.x86_64 How reproducible: ef /usr/libexec/qemu-kvm -L /usr/share/qemu-kvm -vnc :0,to=8 -name winxp -m 1024 -monitor unix:/root/.qemu-gtk/winxp,server,nowait -drive file=/vmdisk/guest-winxp.img,media=disk,if=ide,index=0,id=system -drive file=/mort/distiso/microsoft/winxp-sp3-kraxel.iso,media=cdrom,if=ide,index=2,id=cdrom -net tap,script=/root/bin/qemu-ifup,downscript= -net nic,model=e1000,macaddr=52:54:00:78:23:6f -serial unix:,server,nowait -enable-kvm -localtime -usbdevice tablet -vga std Actual results: ElectricFence Aborting: free(7fa424019200): address not from malloc(). Expected results: guest boots fine Additional info: (gdb) bt #0 0x00000030b3832ca7 in kill () from /lib64/libc.so.6 #1 0x00007fa46d440165 in ?? () from /usr/lib64/libefence.so.0.0 #2 0x00007fa46d4406dd in EF_Abort () from /usr/lib64/libefence.so.0.0 #3 0x00007fa46d43f9d3 in free () from /usr/lib64/libefence.so.0.0 #4 0x000000000048cd4e in qcow_aio_read_cb (opaque=0x7fa42bf30f18, ret=0) at block/qcow2.c:478 #5 0x000000000047d748 in posix_aio_process_queue (opaque=0x7fa46d097ff0) at posix-aio-compat.c:460 #6 0x000000000047d848 in posix_aio_read (opaque=0x7fa46d097ff0) at posix-aio-compat.c:501 #7 0x000000000040af8f in main_loop_wait (timeout=1000) at /usr/src/debug/qemu-kvm-0.12.1.2/vl.c:4074 #8 0x000000000042804a in kvm_main_loop () at /usr/src/debug/qemu-kvm-0.12.1.2/qemu-kvm.c:2127 #9 0x000000000040defb in main_loop (argc=<value optimized out>, argv=<value optimized out>, envp=<value optimized out>) at /usr/src/debug/qemu-kvm-0.12.1.2/vl.c:4284 #10 main (argc=<value optimized out>, argv=<value optimized out>, envp=<value optimized out>) at /usr/src/debug/qemu-kvm-0.12.1.2/vl.c:6416 (gdb)
This request was evaluated by Red Hat Product Management for inclusion in a Red Hat Enterprise Linux major release. Product Management has requested further review of this request by Red Hat Engineering, for potential inclusion in a Red Hat Enterprise Linux Major release. This request is not yet committed for inclusion.
Memory allocation comes from posix_memalign(). ElectricFence just doesn't know about that one: # objdump -T /usr/lib64/libefence.so | grep memalign 00000000000019e0 g DF .text 0000000000000422 Base memalign
Created attachment 426561 [details] Test case
Created attachment 426562 [details] Fix This patch adds the support for posix_memalign to ElectricFence.
Red Hat Enterprise Linux 6.0 is now available and should resolve the problem described in this bug report. This report is therefore being closed with a resolution of CURRENTRELEASE. You may reopen this bug report if the solution does not work for you.