[Xposed General] c3k:
after updating nexus 5 to today's lmy48m, got this error during install (xposed-v73-sdk22-arm.zip):

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Xposed framework installer zip
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- Mounting /system and /vendor read-write
- Checking environment
Xposed version: 73
- Placing files
gzip: can't open '/system/lib/libart.so.orig.gz': File exists
I:Legacy property environment disabled.
E:Error executing updater binary in zip '/sdcard/A___zip___A/xposed-v73-sdk22-arm.zip'
Error flashing zip '/sdcard/A___zip___A/xposed-v73-sdk22-arm.zip'
Updating partition details...
I:Data backup size is 7324MB, free: 2999MB.
I:Unable to mount '/usb-otg'
I:Actual block device: '', current file system: 'vfat'
...done
I:Set page: 'flash_done'
I:operation_end - status=1

then a bootloop :

I/Netd ( 7038): Netd 1.0 starting
I/mediaserver( 7039): ServiceManager: 0xb58700c0
I/AudioFlinger( 7039): Using default 3000 mSec as standby time.
I/ServiceManager( 7039): Waiting for service batterystats...
D/XposedStartupMarker( 7040): Current time: 1441875586, PID: 7040
I/Xposed ( 7040): -----------------
I/Xposed ( 7040): Starting Xposed version 73, compiled for SDK 22
I/Xposed ( 7040): Device: Nexus 5 (LGE), Android version 5.1.1 (SDK 22)
I/Xposed ( 7040): ROM: LMY48M
I/Xposed ( 7040): Build fingerprint: google/hammerhead/hammerhead:5.1.1/LMY48M/2167285:user/release-keys
I/Xposed ( 7040): Platform: armeabi-v7a, 32-bit binary, system server: yes
I/Xposed ( 7040): SELinux enabled: yes, enforcing: yes
W/zygote ( 7040): type=1400 audit(0.0:73): avc: denied { read } for name="input" dev="tmpfs" ino=5887 scontext=u:r:zygote:s0 tcontext=u:object_r:input_device:s0 tclass=dir
I/Xposed ( 7040): -----------------
I/Xposed ( 7040): Added Xposed (/system/framework/XposedBridge.jar) to CLASSPATH
D/AndroidRuntime( 7040): >>>>>> START de.robv.android.xposed.XposedBridge uid 0 <<<<<<
E/JniInvocation( 7040): Failed to dlopen libart.so: dlopen failed: "libart.so" is too small to be an ELF executable: only found 0 bytes
D/AndroidRuntime( 7040): CheckJNI is OFF
F/libc ( 7040): Fatal signal 11 (SIGSEGV), code 1, fault addr 0x0 in tid 7040 (zygote)
I/DEBUG ( 186): *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** ***
I/DEBUG ( 186): Build fingerprint: 'google/hammerhead/hammerhead:5.1.1/LMY48M/2167285:user/release-keys'
I/DEBUG ( 186): Revision: '11'
I/DEBUG ( 186): ABI: 'arm'
I/DEBUG ( 186): pid: 7040, tid: 7040, name: zygote >>> zygote <<<
I/DEBUG ( 186): signal 11 (SIGSEGV), code 1 (SEGV_MAPERR), fault addr 0x0
I/DEBUG ( 186): r0 b6f142a8 r1 bead88cc r2 bead78d8 r3 00000000
I/DEBUG ( 186): r4 00000024 r5 00010004 r6 bead78d8 r7 00000000
I/DEBUG ( 186): r8 bead8814 r9 bead7944 sl bead7958 fp b6eeb975
I/DEBUG ( 186): ip b667bf88 sp bead78c0 lr b6e96393 pc 00000000 cpsr a0000010
I/DEBUG ( 186):
I/DEBUG ( 186): backtrace:
I/DEBUG ( 186): #00 pc 00000000 <unknown>
I/DEBUG ( 186): #01 pc 0006038f /system/lib/libandroid_runtime.so (android::AndroidRuntime::startVm(_JavaVM**, _JNIEnv**)+2286)
I/DEBUG ( 186): #02 pc 000609d7 /system/lib/libandroid_runtime.so (android::AndroidRuntime::start(char const*, android::Vector<android::String8> const&)+258)
I/DEBUG ( 186): #03 pc 0000565d /system/bin/app_process32_xposed (main+792)
I/DEBUG ( 186): #04 pc 00012df5 /system/lib/libc.so (__libc_init+44)
I/DEBUG ( 186): #05 pc 00005810 /system/bin/app_process32_xposed (_start+96)
I/DEBUG ( 186):
I/DEBUG ( 186): Tombstone written to: /data/tombstones/tombstone_02
I/ServiceManager( 179): service 'user.xposed.app' died
I/ServiceManager( 179): service 'media.audio_flinger' died
I/ServiceManager( 179): service 'user.xposed.system' died

EDIT: problem found, not enough free space on system partition