I builded the AOSP 11 arm arch but it does not work with emulator command. 
Not sure why because it works with AOSP 10.

Steps taken
mkdir android; cd android
repo init -u https://android.googlesource.com/platform/manifest -b  
android-11.0.0_r38   --partial-clone --clone-filter=blob:limit=10M
repo sync -c -j4
source build/encsetup.sh
lunch 
aosp_arm64-eng
m -j4
emulator -show-kernel -verbose

Seem like there are something wrong with the ramdisk. One thing difference 
I notice between AOSP 10 arm and AOSP 11 arm is that the latter does not 
have kernel-ranchu and ramdisk-qemu.img after the build. 

Any advice is welcome. Thank you.

*error logs:*
*user@ubuntu:~/android/out/target/product/generic_arm64$ emulator -verbose 
-show-kernel*
*emulator: Android emulator version 30.3.0.0 (build_id 6946397) (CL:N/A)*
*emulator: Found ANDROID_PRODUCT_OUT: 
/home/user/android/out/target/product/generic_arm64*
*emulator: Found build target architecture: arm64*
*emulator: argv[0]: 'emulator'; program directory: 
'/home/user/android/prebuilts/android-emulator/linux-x86_64'*
*emulator: emuDirName: 
'/home/user/android/prebuilts/android-emulator/emulator'*
*emulator: try dir 
/home/user/android/prebuilts/android-emulator/linux-x86_64*
*emulator: Trying emulator path 
'/home/user/android/prebuilts/android-emulator/linux-x86_64/qemu/linux-x86_64/qemu-system-aarch64'*
*emulator: Found target-specific 64-bit emulator binary: 
/home/user/android/prebuilts/android-emulator/linux-x86_64/qemu/linux-x86_64/qemu-system-aarch64*
*emulator: Adding library search path: 
'/home/user/android/prebuilts/android-emulator/linux-x86_64/lib64'*
*emulator: Adding library search path: 
'/home/user/android/prebuilts/android-emulator/linux-x86_64/lib64/gles_angle'*
*emulator: Adding library search path: 
'/home/user/android/prebuilts/android-emulator/linux-x86_64/lib64/gles_angle9'*
*emulator: Adding library search path: 
'/home/user/android/prebuilts/android-emulator/linux-x86_64/lib64/gles_angle11'*
*emulator: Adding library search path: 
'/home/user/android/prebuilts/android-emulator/linux-x86_64/lib64/gles_swiftshader'*
*emulator: Adding library search path: 
'/home/user/android/prebuilts/android-emulator/linux-x86_64/lib64/libstdc++'*
*Adding library search path for Qt: 
'/home/user/android/prebuilts/android-emulator/linux-x86_64/lib64/qt/lib'*
*Silencing all qWarning(); use qCWarning(...) instead: 
QT_LOGGING_RULES=default.warning=false*
*Setting Qt plugin search path: 
QT_QPA_PLATFORM_PLUGIN_PATH=/home/user/android/prebuilts/android-emulator/linux-x86_64/lib64/qt/plugins*
*Setting Qt to use software OpenGL: QT_OPENGL=software*
*Setting QML to use software QtQuick2D: QMLSCENE_DEVICE=softwarecontext*
*Overriding pre-existing bad Qt high dpi settings...*
*Setting LD_PRELOAD to 
/home/user/android/prebuilts/android-emulator/linux-x86_64/lib64/qt/lib/libfreetype.so.6*
*emulator: Running 
:/home/user/android/prebuilts/android-emulator/linux-x86_64/qemu/linux-x86_64/qemu-system-aarch64*
*emulator: qemu backend: argv[00] = 
"/home/user/android/prebuilts/android-emulator/linux-x86_64/qemu/linux-x86_64/qemu-system-aarch64"*
*emulator: qemu backend: argv[01] = "-verbose"*
*emulator: qemu backend: argv[02] = "-show-kernel"*
*emulator: Concatenated backend parameters:*
* 
/home/user/android/prebuilts/android-emulator/linux-x86_64/qemu/linux-x86_64/qemu-system-aarch64
 
-verbose -show-kernel*
*found Android build root: /home/user/android*
*found Android build out:  
/home/user/android/out/target/product/generic_arm64*
*Cannot find boot properties file: 
/home/user/android/out/target/product/generic_arm64/boot.prop*

*Found target API sdkVersion: 30*

*Invalid int property: 
'ro.build.version.incremental:eng.user.20210705.014412'*
*autoconfig: -skin 480x800*
*autoconfig: -skindir (null)*
*autoconfig: -kernel 
/home/user/android/prebuilts/qemu-kernel/arm64/ranchu/kernel-qemu*
*Target arch = 'arm64'*
*Auto-detect: Kernel image requires new device naming scheme.*
*Auto-detect: Kernel does not support YAFFS2 partitions.*
*autoconfig: -ramdisk 
/home/user/android/out/target/product/generic_arm64/ramdisk.img*
*autoconfig: -sysdir /home/user/android/out/target/product/generic_arm64*
*Using initial system image: 
/home/user/android/out/target/product/generic_arm64/system.img*
*system partition size adjusted to match image file (1377 MB > 800 MB)*

*Using initial vendor image: 
/home/user/android/out/target/product/generic_arm64/vendor.img*
*autoconfig: -data 
/home/user/android/out/target/product/generic_arm64/userdata-qemu.img*
*autoconfig: -initdata 
/home/user/android/out/target/product/generic_arm64/userdata.img*
*autoconfig: -cache 
/home/user/android/out/target/product/generic_arm64/cache.img*
*Physical RAM size: 2048MB*

*VM heap size 0MB is below hardware specified minimum of 512MB,setting it 
to that value*
*System image is read only*
*autoconfig: -no-snapshot from AVD config.ini*
*emulator: Found 1 DNS servers: 127.0.0.53*

*found magic skin width=480 height=800 bpp=16*

*WARNING: encryption is off*
*GPU emulation enabled using 'host' mode*
*Initializing hardware OpenGLES emulation support*
*VERBOSE: MultiDisplay.cpp:307: create display 0*
*VERBOSE: MultiDisplay.cpp:396: setDisplayPose 0 x 0 y 0 w 480 h 800 dpi 0*
*ERROR: VkCommonOperations.cpp:543: Failed to create Vulkan instance.*
*VERBOSE: load_config.cpp:242: Verified boot params were not found.*
*emulator: Found 1 DNS servers: 127.0.0.53*
*Content of hardware configuration file:*
*  hw.cpu.arch = arm64*
*  hw.cpu.ncore = 2*
*  hw.ramSize = 2048*
*  hw.screen = multi-touch*
*  hw.mainKeys = false*
*  hw.trackBall = true*
*  hw.keyboard = true*
*  hw.keyboard.lid = false*
*  hw.keyboard.charmap = qwerty2*
*  hw.dPad = false*
*  hw.rotaryInput = false*
*  hw.gsmModem = true*
*  hw.gps = true*
*  hw.battery = true*
*  hw.accelerometer = true*
*  hw.gyroscope = true*
*  hw.audioInput = true*
*  hw.audioOutput = true*
*  hw.sdCard = true*
*  disk.cachePartition = true*
*  disk.cachePartition.path = 
/home/user/android/out/target/product/generic_arm64/cache.img*
*  disk.cachePartition.size = 66m*
*  test.quitAfterBootTimeOut = -1*
*  test.delayAdbTillBootComplete = 0*
*  test.monitorAdb = 0*
*  hw.lcd.width = 480*
*  hw.lcd.height = 800*
*  hw.lcd.depth = 16*
*  hw.lcd.density = 240*
*  hw.lcd.backlight = true*
*  hw.lcd.vsync = 60*
*  hw.gltransport = pipe*
*  hw.gltransport.asg.writeBufferSize = 1048576*
*  hw.gltransport.asg.writeStepSize = 4096*
*  hw.gltransport.asg.dataRingSize = 32768*
*  hw.gltransport.drawFlushInterval = 800*
*  hw.displayRegion.0.1.xOffset = -1*
*  hw.displayRegion.0.1.yOffset = -1*
*  hw.displayRegion.0.1.width = 0*
*  hw.displayRegion.0.1.height = 0*
*  hw.displayRegion.0.2.xOffset = -1*
*  hw.displayRegion.0.2.yOffset = -1*
*  hw.displayRegion.0.2.width = 0*
*  hw.displayRegion.0.2.height = 0*
*  hw.displayRegion.0.3.xOffset = -1*
*  hw.displayRegion.0.3.yOffset = -1*
*  hw.displayRegion.0.3.width = 0*
*  hw.displayRegion.0.3.height = 0*
*  hw.display1.width = 0*
*  hw.display1.height = 0*
*  hw.display1.density = 0*
*  hw.display1.xOffset = -1*
*  hw.display1.yOffset = -1*
*  hw.display1.flag = 0*
*  hw.display2.width = 0*
*  hw.display2.height = 0*
*  hw.display2.density = 0*
*  hw.display2.xOffset = -1*
*  hw.display2.yOffset = -1*
*  hw.display2.flag = 0*
*  hw.display3.width = 0*
*  hw.display3.height = 0*
*  hw.display3.density = 0*
*  hw.display3.xOffset = -1*
*  hw.display3.yOffset = -1*
*  hw.display3.flag = 0*
*  hw.gpu.enabled = true*
*  hw.gpu.mode = host*
*  hw.initialOrientation = portrait*
*  hw.camera.back = emulated*
*  hw.camera.front = emulated*
*  vm.heapSize = 512*
*  hw.sensors.light = true*
*  hw.sensors.pressure = true*
*  hw.sensors.humidity = true*
*  hw.sensors.proximity = true*
*  hw.sensors.magnetic_field = true*
*  hw.sensors.magnetic_field_uncalibrated = true*
*  hw.sensors.gyroscope_uncalibrated = true*
*  hw.sensors.orientation = true*
*  hw.sensors.temperature = true*
*  hw.sensor.hinge = true*
*  hw.sensor.hinge.count = 0*
*  hw.sensor.hinge.type = 0*
*  hw.sensor.hinge.sub_type = 0*
*  hw.sensor.hinge.fold_to_displayRegion.0.1_at_posture = 1*
*  hw.sensor.roll = false*
*  hw.sensor.roll.count = 0*
*  hw.sensor.roll.resize_to_displayRegion.0.1_at_posture = 6*
*  hw.sensor.roll.resize_to_displayRegion.0.2_at_posture = 6*
*  hw.sensor.roll.resize_to_displayRegion.0.3_at_posture = 6*
*  hw.useext4 = true*
*  hw.arc = false*
*  hw.arc.autologin = false*
*  kernel.path = 
/home/user/android/prebuilts/qemu-kernel/arm64/ranchu/kernel-qemu*
*  kernel.newDeviceNaming = yes*
*  kernel.supportsYaffs2 = no*
*  disk.ramdisk.path = 
/home/user/android/out/target/product/generic_arm64/ramdisk.img*
*  disk.systemPartition.initPath = 
/home/user/android/out/target/product/generic_arm64/system.img*
*  disk.systemPartition.size = 1377m*
*  disk.vendorPartition.initPath = 
/home/user/android/out/target/product/generic_arm64/vendor.img*
*  disk.vendorPartition.size = 800m*
*  disk.dataPartition.path = 
/home/user/android/out/target/product/generic_arm64/userdata-qemu.img*
*  disk.dataPartition.size = 6g*
*  PlayStore.enabled = false*
*  avd.name = <build>*
*  avd.id = <build>*
*  fastboot.forceColdBoot = true*
*  android.avd.home = /home/user/.android/avd*
*.*
*QEMU options list:*
*emulator: argv[00] = 
"/home/user/android/prebuilts/android-emulator/linux-x86_64/qemu/linux-x86_64/qemu-system-aarch64"*
*emulator: argv[01] = "-dns-server"*
*emulator: argv[02] = "127.0.0.53"*
*emulator: argv[03] = "-serial"*
*emulator: argv[04] = "stdio"*
*emulator: argv[05] = "-device"*
*emulator: argv[06] = 
"goldfish_pstore,addr=0xff018000,size=0x10000,file=/home/user/android/out/target/product/generic_arm64/build.avd/data/misc/pstore/pstore.bin"*
*emulator: argv[07] = "-cpu"*
*emulator: argv[08] = "cortex-a57"*
*emulator: argv[09] = "-machine"*
*emulator: argv[10] = "type=ranchu"*
*emulator: argv[11] = "-m"*
*emulator: argv[12] = "2048"*
*emulator: argv[13] = "-lcd-density"*
*emulator: argv[14] = "240"*
*emulator: argv[15] = "-nodefaults"*
*emulator: argv[16] = "-kernel"*
*emulator: argv[17] = 
"/home/user/android/prebuilts/qemu-kernel/arm64/ranchu/kernel-qemu"*
*emulator: argv[18] = "-initrd"*
*emulator: argv[19] = 
"/home/user/android/out/target/product/generic_arm64/ramdisk.img"*
*emulator: argv[20] = "-drive"*
*emulator: argv[21] = 
"index=0,id=vendor,if=none,file=/home/user/android/out/target/product/generic_arm64/vendor.img,read-only"*
*emulator: argv[22] = "-device"*
*emulator: argv[23] = "virtio-blk-device,drive=vendor"*
*emulator: argv[24] = "-drive"*
*emulator: argv[25] = 
"index=1,id=userdata,if=none,file=/home/user/android/out/target/product/generic_arm64/userdata-qemu.img.qcow2,overlap-check=none,cache=unsafe,l2-cache-size=1048576"*
*emulator: argv[26] = "-device"*
*emulator: argv[27] = "virtio-blk-device,drive=userdata"*
*emulator: argv[28] = "-drive"*
*emulator: argv[29] = 
"index=2,id=cache,if=none,file=/home/user/android/out/target/product/generic_arm64/cache.img.qcow2,overlap-check=none,cache=unsafe,l2-cache-size=1048576"*
*emulator: argv[30] = "-device"*
*emulator: argv[31] = "virtio-blk-device,drive=cache"*
*emulator: argv[32] = "-drive"*
*emulator: argv[33] = 
"index=3,id=system,if=none,file=/home/user/android/out/target/product/generic_arm64/system.img,read-only"*
*emulator: argv[34] = "-device"*
*emulator: argv[35] = "virtio-blk-device,drive=system"*
*emulator: argv[36] = "-netdev"*
*emulator: argv[37] = "user,id=mynet"*
*emulator: argv[38] = "-device"*
*emulator: argv[39] = "virtio-net-device,netdev=mynet"*
*emulator: argv[40] = "-device"*
*emulator: argv[41] = "virtio-rng-device"*
*emulator: argv[42] = "-show-cursor"*
*emulator: argv[43] = "-L"*
*emulator: argv[44] = 
"/home/user/android/prebuilts/android-emulator/linux-x86_64/lib/pc-bios"*
*emulator: argv[45] = "-append"*
*emulator: argv[46] = "qemu=1 no_timer_check androidboot.hardware=ranchu 
androidboot.serialno=EMULATOR30X3X0X0 console=ttyAMA0,38400 keep_bootcon 
earlyprintk=ttyAMA0 android.qemud=1 android.checkjni=1 qemu.gles=1 
qemu.settings.system.screen_off_timeout=2147483647 qemu.vsync=60 
qemu.gltransport=pipe qemu.gltransport.drawFlushInterval=800 
qemu.opengles.version=131072 cma=6M@0-4G loop.max_part=7 
ramoops.mem_address=0xff018000 ramoops.mem_size=0x10000 
memmap=0x10000$0xff018000 qemu.dalvik.vm.heapsize=512m 
qemu.camera_protocol_ver=1"*
*emulator: argv[47] = "-android-hw"*
*emulator: argv[48] = 
"/home/user/android/out/target/product/generic_arm64/hardware-qemu.ini"*
*Concatenated QEMU options:*
* 
/home/user/android/prebuilts/android-emulator/linux-x86_64/qemu/linux-x86_64/qemu-system-aarch64
 
-dns-server 127.0.0.53 -serial stdio -device 
goldfish_pstore,addr=0xff018000,size=0x10000,file=/home/user/android/out/target/product/generic_arm64/build.avd/data/misc/pstore/pstore.bin
 
-cpu cortex-a57 -machine type=ranchu -m 2048 -lcd-density 240 -nodefaults 
-kernel /home/user/android/prebuilts/qemu-kernel/arm64/ranchu/kernel-qemu 
-initrd /home/user/android/out/target/product/generic_arm64/ramdisk.img 
-drive 
index=0,id=vendor,if=none,file=/home/user/android/out/target/product/generic_arm64/vendor.img,read-only
 
-device virtio-blk-device,drive=vendor -drive 
index=1,id=userdata,if=none,file=/home/user/android/out/target/product/generic_arm64/userdata-qemu.img.qcow2,overlap-check=none,cache=unsafe,l2-cache-size=1048576
 
-device virtio-blk-device,drive=userdata -drive 
index=2,id=cache,if=none,file=/home/user/android/out/target/product/generic_arm64/cache.img.qcow2,overlap-check=none,cache=unsafe,l2-cache-size=1048576
 
-device virtio-blk-device,drive=cache -drive 
index=3,id=system,if=none,file=/home/user/android/out/target/product/generic_arm64/system.img,read-only
 
-device virtio-blk-device,drive=system -netdev user,id=mynet -device 
virtio-net-device,netdev=mynet -device virtio-rng-device -show-cursor -L 
/home/user/android/prebuilts/android-emulator/linux-x86_64/lib/pc-bios 
-append 'qemu=1 no_timer_check androidboot.hardware=ranchu 
androidboot.serialno=EMULATOR30X3X0X0 console=ttyAMA0,38400 keep_bootcon 
earlyprintk=ttyAMA0 android.qemud=1 android.checkjni=1 qemu.gles=1 
qemu.settings.system.screen_off_timeout=2147483647 qemu.vsync=60 
qemu.gltransport=pipe qemu.gltransport.drawFlushInterval=800 
qemu.opengles.version=131072 cma=6M@0-4G loop.max_part=7 
ramoops.mem_address=0xff018000 ramoops.mem_size=0x10000 
memmap=0x10000$0xff018000 qemu.dalvik.vm.heapsize=512m 
qemu.camera_protocol_ver=1' -android-hw 
/home/user/android/out/target/product/generic_arm64/hardware-qemu.ini*
*Android qemu version 30.3.0.0 (build_id 6946397) (CL:N/A)*

*Starting QEMU main loop*
*registered 'boot-properties' qemud service*
*Adding boot property: 'ro.opengles.version' = '131072'*
*Adding boot property: 'qemu.sf.fake_camera' = 'both'*
*Adding boot property: 'dalvik.vm.heapsize' = '512m'*
*Adding boot property: 'qemu.hw.mainkeys' = '0'*
*Adding boot property: 'qemu.sf.lcd_density' = '240'*
*goldfish_events.have-dpad: false*
*goldfish_events.have-trackball: true*
*goldfish_events.have-camera: true*
*goldfish_events.have-keyboard: true*
*goldfish_events.have-lidswitch: false*
*goldfish_events.have-tabletmode: false*
*goldfish_events.have-touch: false*
*goldfish_events.have-multitouch: true*
*control console listening on port 5554, ADB on port 5555*
*Not using any http proxy*
*Adding boot property: 'qemu.timezone' = 'America/Los_Angeles'*
*android_hw_fingerprint_init: fingerprint qemud listen service initialized*

*VERBOSE: GrpcServices.cpp:286: Started GRPC server at 127.0.0.1:8554, 
security: Local*
*emulator_window_fb_rotate*

*VERBOSE: AdbInterface.cpp:356:  no root specified: *
*VERBOSE: AdbInterface.cpp:356:  no root specified: *
*VERBOSE: AdbInterface.cpp:386: Found: 1 adb executables*
*VERBOSE: AdbInterface.cpp:388: Adb: 
/home/user/android/out/soong/host/linux-x86/bin/adb*
*VERBOSE: AdbInterface.cpp:410: 
Path:/home/user/android/out/soong/host/linux-x86/bin/adb protocol version: 
41*
*Initializing cgroup subsys cpu*
*Initializing cgroup subsys cpuacct*
*Linux version 3.18.94+ (android-build@abfarm207) (gcc version 4.9.x-google 
20140827 (prerelease) (GCC) ) #1 SMP PREEMPT Mon Feb 12 19:55:24 UTC 2018*
*Boot CPU: AArch64 Processor [411fd070]*
*debug: skip boot console de-registration.*
*efi: Getting EFI parameters from FDT:*
*efi: UEFI not found.*
*PERCPU: Embedded 11 pages/cpu @ffffffc07ffdb000 s14272 r0 d30784 u45056*
*Detected PIPT I-cache on CPU0*
*CPU features: enabling workaround for ARM erratum 832075*
*Built 1 zonelists in Zone order, mobility grouping on.  Total pages: 
517120*
*Kernel command line: qemu=1 no_timer_check androidboot.hardware=ranchu 
androidboot.serialno=EMULATOR30X3X0X0 console=ttyAMA0,38400 keep_bootcon 
earlyprintk=ttyAMA0 android.qemud=1 android.checkjni=1 qemu.gles=1 
qemu.settings.system.screen_off_timeout=2147483647 qemu.vsync=60 
qemu.gltransport=pipe qemu.gltransport.drawFlushInterval=800 
qemu.opengles.version=131072 cma=6M@0-4G loop.max_part=7 
ramoops.mem_address=0xff018000 ramoops.mem_size=0x10000 
memmap=0x10000$0xff018000 qemu.dalvik.vm.heapsize=512m 
qemu.camera_protocol_ver=1 mac80211_hwsim.mac_prefix=5554*
*PID hash table entries: 4096 (order: 3, 32768 bytes)*
*Dentry cache hash table entries: 262144 (order: 9, 2097152 bytes)*
*Inode-cache hash table entries: 131072 (order: 8, 1048576 bytes)*
*Memory: 2056140K/2097152K available (5451K kernel code, 326K rwdata, 1468K 
rodata, 236K init, 483K bss, 41012K reserved, 0K cma-reserved)*
*Virtual kernel memory layout:*
*    vmalloc : 0xffffff8000000000 - 0xffffffbdffff0000   (   247 GB)*
*    vmemmap : 0xffffffbe00000000 - 0xffffffbfc0000000   (     7 GB 
maximum)*
*              0xffffffbe00000000 - 0xffffffbe01c00000   (    28 MB actual)*
*    PCI I/O : 0xffffffbffa000000 - 0xffffffbffb000000   (    16 MB)*
*    fixed   : 0xffffffbffbdfb000 - 0xffffffbffbdff000   (    16 KB)*
*    modules : 0xffffffbffc000000 - 0xffffffc000000000   (    64 MB)*
*    memory  : 0xffffffc000000000 - 0xffffffc080000000   (  2048 MB)*
*      .init : 0xffffffc00074a000 - 0xffffffc000785000   (   236 KB)*
*      .text : 0xffffffc000080000 - 0xffffffc0005d4cb0   (  5460 KB)*
*      .data : 0xffffffc000796000 - 0xffffffc0007e7a00   (   327 KB)*
*SLUB: HWalign=64, Order=0-3, MinObjects=0, CPUs=1, Nodes=1*
*Preemptible hierarchical RCU implementation.*
* RCU restricting CPUs from NR_CPUS=4 to nr_cpu_ids=1.*
*RCU: Adjusting geometry for rcu_fanout_leaf=16, nr_cpu_ids=1*
*NR_IRQS:64 nr_irqs:64 0*
*GIC CPU mask not found - kernel will fail to boot.*
*GIC CPU mask not found - kernel will fail to boot.*
*Architected cp15 timer(s) running at 62.50MHz (phys).*
*sched_clock: 56 bits at 62MHz, resolution 16ns, wraps every 
2199023255552ns*
*Calibrating delay loop (skipped), value calculated using timer frequency.. 
125.00 BogoMIPS (lpj=625000)*
*pid_max: default: 32768 minimum: 301*
*Security Framework initialized*
*SELinux:  Initializing.*
*Mount-cache hash table entries: 4096 (order: 3, 32768 bytes)*
*Mountpoint-cache hash table entries: 4096 (order: 3, 32768 bytes)*
*Initializing cgroup subsys freezer*
*Initializing cgroup subsys debug*
*sched-energy: CPU device node has no sched-energy-costs*
*Invalid sched_group_energy for CPU0*
*CPU0: update cpu_capacity 1024*
*hw perfevents: enabled with arm/armv8-pmuv3 PMU driver, 1 counters 
available*
*EFI services will not be available.*
*ASID allocator initialised with 32768 entries*
*Brought up 1 CPUs*
*SMP: Total of 1 processors activated.*
*alternatives: patching kernel code*
*Invalid sched_group_energy for Cluster0*
*DMI not present or invalid.*
*atomic64_test: passed*
*NET: Registered protocol family 16*
*vdso: 2 pages (1 code @ ffffffc0005da000, 1 data @ ffffffc00079c000)*
*hw-breakpoint: found 6 breakpoint and 4 watchpoint registers.*
*software IO TLB [mem 0xbd000000-0xbd400000] (4MB) mapped at 
[ffffffc07d000000-ffffffc07d3fffff]*
*DMA: preallocated 256 KiB pool for atomic allocations*
*Serial: AMBA PL011 UART driver*
*9000000.pl011: ttyAMA0 at MMIO 0x9000000 (irq = 33, base_baud = 0) is a 
PL011 rev1*
*console [ttyAMA0] enabled*
*SCSI subsystem initialized*
*Advanced Linux Sound Architecture Driver Initialized.*
*cfg80211: Calling CRDA to update world regulatory domain*
*Switched to clocksource arch_sys_counter*
*NET: Registered protocol family 2*
*TCP established hash table entries: 16384 (order: 5, 131072 bytes)*
*TCP bind hash table entries: 16384 (order: 6, 262144 bytes)*
*TCP: Hash tables configured (established 16384 bind 16384)*
*TCP: reno registered*
*UDP hash table entries: 1024 (order: 3, 32768 bytes)*
*UDP-Lite hash table entries: 1024 (order: 3, 32768 bytes)*
*NET: Registered protocol family 1*
*RPC: Registered named UNIX socket transport module.*
*RPC: Registered udp transport module.*
*RPC: Registered tcp transport module.*
*RPC: Registered tcp NFSv4.1 backchannel transport module.*
*Trying to unpack rootfs image as initramfs...*
*rootfs image is not initramfs (compression method lz4 not configured); 
looks like an initrd*
*Freeing initrd memory: 924K*
*futex hash table entries: 256 (order: 2, 16384 bytes)*
*audit: initializing netlink subsys (disabled)*
*audit: type=2000 audit(0.580:1): initialized*
*VFS: Disk quotas dquot_6.5.2*
*Dquot-cache hash table entries: 512 (order 0, 4096 bytes)*
*fuse init (API version 7.23)*
*io scheduler noop registered*
*io scheduler cfq registered (default)*
*brd: module loaded*
*loop: module loaded*
* vda: unknown partition table*
* vdb: unknown partition table*
* vdc: unknown partition table*
* vdd: unknown partition table*
*tun: Universal TUN/TAP device driver, 1.6*
*tun: (C) 1999-2004 Max Krasnyansky <[email protected]>*
*PPP generic driver version 2.4.2*
*PPP BSD Compression module registered*
*PPP Deflate Compression module registered*
*PPP MPPE Compression module registered*
*NET: Registered protocol family 24*
*mac80211_hwsim: initializing netlink*
*mousedev: PS/2 mouse device common for all mice*
*input: qwerty2 as /devices/9040000.goldfish-events/input/input0*
*device-mapper: uevent: version 1.0.3*
*device-mapper: ioctl: 4.28.0-ioctl (2014-09-17) initialised: 
[email protected]*
*hidraw: raw HID events driver (C) Jiri Kosina*
*ashmem: initialized*
*u32 classifier*
*    Actions configured*
*Netfilter messages via NETLINK v0.30.*
*nf_conntrack version 0.5.0 (16384 buckets, 65536 max)*
*ctnetlink v0.93: registering with nfnetlink.*
*xt_time: kernel timezone is -0000*
*ip_tables: (C) 2000-2006 Netfilter Core Team*
*arp_tables: (C) 2002 David S. Miller*
*TCP: cubic registered*
*Initializing XFRM netlink socket*
*NET: Registered protocol family 10*
*mip6: Mobile IPv6*
*ip6_tables: (C) 2000-2006 Netfilter Core Team*
*sit: IPv6 over IPv4 tunneling driver*
*NET: Registered protocol family 17*
*NET: Registered protocol family 15*
*bridge: automatic filtering via arp/ip/ip6tables has been deprecated. 
Update your scripts to load br_netfilter if you need this.*
*Bridge firewalling registered*
*Registered cp15_barrier emulation handler*
*Registered setend emulation handler*
*registered taskstats version 1*
*/buildbot/src/partner-android/n-dev-android-goldfish-3.18-arm64/goldfish/drivers/rtc/hctosys.c:
 
unable to open rtc device (rtc0)*
*ALSA device list:*
*  No soundcards found.*
*RAMDISK: lz4 image found at block 0*
*RAMDISK: lz4 decompressor not configured!*
*Invalid ramdisk decompression routine.  Select appropriate config option.*
*Kernel panic - not syncing: Could not decompress initial ramdisk image.*
*CPU: 0 PID: 1 Comm: swapper/0 Not tainted 3.18.94+ #1*
*Hardware name: ranchu (DT)*
*Call trace:*
*[<ffffffc00008a590>] dump_backtrace+0x0/0x128*
*[<ffffffc00008a6cc>] show_stack+0x14/0x1c*
*[<ffffffc0005ca064>] dump_stack+0x80/0xa4*
*[<ffffffc0005c95a0>] panic+0xe8/0x228*
*[<ffffffc00074ba34>] rd_load_image+0x2fc/0x5e0*
*[<ffffffc00074be30>] initrd_load+0x50/0x2cc*
*[<ffffffc00074b47c>] prepare_namespace+0xd8/0x1ac*
*[<ffffffc00074ad04>] kernel_init_freeable+0x1bc/0x1dc*
*[<ffffffc0005c8150>] kernel_init+0x10/0xf4*
*Rebooting in 5 seconds..Reboot failed -- System halted*










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