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+runtime: 0.446
+instruction: 0.359
+syscall: 0.195
+
+
+
+qemu-x86_64 on aarch64 reports "Synchronous External Abort"
+
+Purpose: to run x86_64 utilities on aarch64 platform (Intel/Dell network adapters' firmware upgrade tools)
+System: aarch64 server platform, with ubuntu 16.04 (xenial) Linux 4.13.0-45-generic #50~16.04.1-Ubuntu SMP Wed May 30 11:14:25 UTC 2018 aarch64 aarch64 aarch64 GNU/Linux
+
+Reproduce:
+1) build linux-user qemu-x86_64 static from source (tried both version 1.12.0 & 1.11.02)
+   ./configure --target-list=x86_64-linux-user --disable-system --static --enable-linux-user
+
+2) install the interpreter into binfmt_misc filesystem
+   $ cat /proc/sys/fs/binfmt_misc/qemu-x86_64
+     enabled
+     interpreter /usr/local/bin/qemu-x86_64
+     flags:
+     offset 0
+     magic 7f454c4602010100000000000000000002003e00
+     mask fffffffffffefefcfffffffffffffffffeffffff
+
+3) packaging Intel/Dell upgrade utilities into docker images, I've published two on docker hub:
+   REPOSITORY          TAG                 IMAGE ID            CREATED             SIZE
+   heyi/dellupdate     latest              8e013f5511cd        6 hours ago         210MB
+   heyi/nvmupdate64e   latest              9d2de9d0edaa        3 days ago          451MB
+
+4) run the docker container on aarch64 server platform:
+   docker run -it --privileged --network host --volume /usr/local/bin/qemu-x86_64:/usr/local/bin/qemu-x86_64 heyi/dellupdate:latest
+
+5) finally, within docker container run the upgrade tool:
+   # ./Network_Firmware_T6VN9_LN_18.5.17_A00.BIN
+
+Errors: in dmesg it reports excessive 'Synchronous External Abort':
+
+kernel: [242850.159893] Synchronous External Abort: synchronous external abort (0x92000610) at 0x0000000000429958
+kernel: [242850.169199] Unhandled fault: synchronous external abort (0x92000610) at 0x0000000000429958
+
+thanks and best regards, Yi
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