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We created a 64bit SLES11 SP1 guest, and then used a script to change memory (using mem-set command) periodically (in 1 second): set 1G, set 2G, set 1G, set 2G, and so on. After a few minutes, we encountered QEMU exit due to SIGBUS error. Below is the call trace captured by gdb: The call trace: Program received signal SIGBUS, Bus error. 0x00007f94f74773d7 in memcpy () from /lib64/libc.so.6 (gdb)

...uangrong@linux.vnet.ibm.com> Xudong Hao <xudong.hao@intel.com> Yan Vugenfirer <yan@daynix.com> Yeongkyoon Lee <yeongkyoon.lee@samsung.com> Yin Yin <yin.yin@cs2c.com.cn> Yongbok Kim <yongbok.kim@imgtec.com> zhangleiqiang <zhangleiqiang@huawei.com> Zhenguo Wang <wangzhenguo@huawei.com> Zhi Yong Wu <wuzhy@linux.vnet.ibm.com> Ákos Kovács <akoskovacs@gmx.com> ------------------------------------------------------------ jobs: build-amd64 pass build-i386...

...uangrong@linux.vnet.ibm.com> Xudong Hao <xudong.hao@intel.com> Yan Vugenfirer <yan@daynix.com> Yeongkyoon Lee <yeongkyoon.lee@samsung.com> Yin Yin <yin.yin@cs2c.com.cn> Yongbok Kim <yongbok.kim@imgtec.com> zhangleiqiang <zhangleiqiang@huawei.com> Zhenguo Wang <wangzhenguo@huawei.com> Zhi Yong Wu <wuzhy@linux.vnet.ibm.com> Ákos Kovács <akoskovacs@gmx.com> ------------------------------------------------------------ jobs: build-amd64 pass build-i386...

...uangrong@linux.vnet.ibm.com> Xudong Hao <xudong.hao@intel.com> Yan Vugenfirer <yan@daynix.com> Yeongkyoon Lee <yeongkyoon.lee@samsung.com> Yin Yin <yin.yin@cs2c.com.cn> Yongbok Kim <yongbok.kim@imgtec.com> zhangleiqiang <zhangleiqiang@huawei.com> Zhenguo Wang <wangzhenguo@huawei.com> Zhi Yong Wu <wuzhy@linux.vnet.ibm.com> Ákos Kovács <akoskovacs@gmx.com> ------------------------------------------------------------ jobs: build-amd64 pass build-i386...