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From: | Zhanghaoyu (A) |
Subject: | [Qemu-devel] qemu crashed when starting vm(kvm) with vnc connect |
Date: | Tue, 2 Apr 2013 09:02:02 +0000 |
I start a kvm VM with vnc(using the zrle protocol) connect, sometimes qemu program crashed during starting period, received signal SIGABRT. Trying about 20 times, this crash may be reproduced. I guess the cause memory corruption or double free. The backtrace shown as below: 0x00007f32eda3dd95 in raise () from /lib64/libc.so.6 (gdb) bt #0 0x00007f32eda3dd95 in raise () from /lib64/libc.so.6 #1 0x00007f32eda3f2ab in abort () from /lib64/libc.so.6 #2 0x00007f32eda77ece in __libc_message () from /lib64/libc.so.6 #3 0x00007f32eda7dc06 in malloc_printerr () from /lib64/libc.so.6 #4 0x00007f32eda7ecda in _int_free () from /lib64/libc.so.6 #5 0x00007f32efd3452c in free_and_trace (mem=0x7f3290000cd0) at vl.c:2880 #6 0x00007f32efd251a1 in buffer_free (buffer=0x7f32f0c82890) at ui/vnc.c:505 #7 0x00007f32efd20c56 in vnc_zrle_clear (vs=0x7f32f0c762d0) at ui/vnc-enc-zrle.c:364 #8 0x00007f32efd26d07 in vnc_disconnect_finish (vs=0x7f32f0c762d0) at ui/vnc.c:1050 #9 0x00007f32efd275c5 in vnc_client_read (opaque=0x7f32f0c762d0) at ui/vnc.c:1349 #10 0x00007f32efcb397c in qemu_iohandler_poll (readfds=0x7f32f074d020, writefds=0x7f32f074d0a0, xfds=0x7f32f074d120, ret=1) at iohandler.c:124 #11 0x00007f32efcb46e8 in main_loop_wait (nonblocking=0) at main-loop.c:417 #12 0x00007f32efd31159 in main_loop () at vl.c:2133 #13 0x00007f32efd38070 in main (argc=46, argv=0x7fff7f5df178, envp=0x7fff7f5df2f0) at vl.c:4481 |
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