[Galaxy S II Q&A, Help & Troubleshooting] caudas:
I got this log on a first boot logcat-enabled ROM:

--------- beginning of main
I/lowmemorykiller( 1860): Using in-kernel low memory killer interface
W/auditd ( 1858): type=2000 audit(0.0:1): initialized
I/auditd ( 1858): type=1403 audit(0.0:2): policy loaded auid=4294967295 ses=4294967295
W/auditd ( 1858): type=1404 audit(0.0:3): enforcing=1 old_enforcing=0 auid=4294967295 ses=4294967295
W/vold ( 1862): type=1400 audit(0.0:4): avc: denied { search } for name="/" dev=mmcblk0p1 ino=2 scontext=u:r:vold:s0 tcontext=u:object_r:efs_file:s0 tclass=dir
--------- beginning of system
I/Vold ( 1862): Vold 2.1 (the revenge) firing up
D/Vold ( 1862): Volume sdcard0 state changing -1 (Initializing) -> 0 (No-Media)
D/Vold ( 1862): Volume sdcard1 state changing -1 (Initializing) -> 0 (No-Media)
D/Vold ( 1862): Volume usbdisk0 state changing -1 (Initializing) -> 0 (No-Media)
I/Cryptfs ( 1862): Check if PFE is activated on Boot
E/Cryptfs ( 1862): Cannot open footer file /efs/metadata for get
E/Cryptfs ( 1862): Error getting crypt footer and key
D/Vold ( 1862): Volume sdcard0 state changing 0 (No-Media) -> 2 (Pending)
D/DirectVolume( 1862): DirectVolume::handlePartitionAdded -> MAJOR 179, MINOR 1, PARTN 1
D/DirectVolume( 1862): DirectVolume::handlePartitionAdded -> MAJOR 179, MINOR 2, PARTN 2
D/DirectVolume( 1862): DirectVolume::handlePartitionAdded -> MAJOR 179, MINOR 3, PARTN 3
D/DirectVolume( 1862): DirectVolume::handlePartitionAdded -> MAJOR 179, MINOR 4, PARTN 4
D/DirectVolume( 1862): DirectVolume::handlePartitionAdded -> MAJOR 179, MINOR 5, PARTN 5
D/DirectVolume( 1862): DirectVolume::handlePartitionAdded -> MAJOR 179, MINOR 6, PARTN 6
D/DirectVolume( 1862): DirectVolume::handlePartitionAdded -> MAJOR 179, MINOR 7, PARTN 7
D/DirectVolume( 1862): DirectVolume::handlePartitionAdded -> MAJOR 259, MINOR 0, PARTN 8
E/DirectVolume( 1862): Partition '/devices/platform/dw_mmc/mmc_host/mmc0/mmc0:0001/block/mmcblk0/mmcblk0p8' has a different major than its disk!
D/DirectVolume( 1862): DirectVolume::handlePartitionAdded -> MAJOR 259, MINOR 1, PARTN 9
E/DirectVolume( 1862): Partition '/devices/platform/dw_mmc/mmc_host/mmc0/mmc0:0001/block/mmcblk0/mmcblk0p9' has a different major than its disk!
D/DirectVolume( 1862): DirectVolume::handlePartitionAdded -> MAJOR 259, MINOR 2, PARTN 10
E/DirectVolume( 1862): Partition '/devices/platform/dw_mmc/mmc_host/mmc0/mmc0:0001/block/mmcblk0/mmcblk0p10' has a different major than its disk!
D/DirectVolume( 1862): DirectVolume::handlePartitionAdded -> MAJOR 259, MINOR 3, PARTN 11
E/DirectVolume( 1862): Partition '/devices/platform/dw_mmc/mmc_host/mmc0/mmc0:0001/block/mmcblk0/mmcblk0p11' has a different major than its disk!
D/DirectVolume( 1862): DirectVolume::handlePartitionAdded -> MAJOR 259, MINOR 4, PARTN 12
E/DirectVolume( 1862): Partition '/devices/platform/dw_mmc/mmc_host/mmc0/mmc0:0001/block/mmcblk0/mmcblk0p12' has a different major than its disk!
D/Vold ( 1862): Volume sdcard0 state changing 2 (Pending) -> 1 (Idle-Unmounted)
D/Vold ( 1862): Volume sdcard1 state changing 0 (No-Media) -> 2 (Pending)
D/DirectVolume( 1862): DirectVolume::handlePartitionAdded -> MAJOR 179, MINOR 9, PARTN 1
D/Vold ( 1862): Volume sdcard1 state changing 2 (Pending) -> 1 (Idle-Unmounted)
I/slim ( 1917): Welcome to Android 5.1.1 / SlimKat Slim-5.1.1.alpha.0.1-UNOFFICIAL-20150509-0944
I/SurfaceFlinger( 1863): SurfaceFlinger is starting
I/SurfaceFlinger( 1863): SurfaceFlinger's main thread ready to run. Initializing graphics H/W...
D/libEGL ( 1863): loaded /system/lib/egl/libEGL_mali.so
I/run-parts( 1869): /data/system: No such file or directory
D/libEGL ( 1863): loaded /system/lib/egl/libGLESv1_CM_mali.so
W/ls ( 1935): type=1400 audit(0.0:5): avc: denied { search } for name="wifi" dev=mmcblk0p10 ino=16399 scontext=u:r:sysinit:s0 tcontext=u:object_r:wifi_data_file:s0 tclass=dir
I/run-parts( 1869): /data/misc/wifi/wpa_supplicant.conf: Permission denied
I/SELinuxLabel( 1937): data is unlabeled, fixing...
W/ls ( 1938): type=1400 audit(0.0:6): avc: denied { getattr } for path="/system/bin/surfaceflinger" dev=mmcblk0p9 ino=24672 scontext=u:r:sysinit:s0 tcontext=u:object_r:surfaceflinger_exec:s0 tclass=file
I/run-parts( 1869): /system/bin/surfaceflinger: Permission denied
D/libEGL ( 1863): loaded /system/lib/egl/libGLESv2_mali.so
I/run-parts( 1869): /system/priv-app/GoogleServicesFramework.apk: No such file or directory
I/SELinuxLabel( 1944): /data relabel starting...
E/ ( 1863): Device driver API match
E/ ( 1863): Device driver API version: 23
E/ ( 1863): User space API version: 23
E/ ( 1863): mali: REVISION=Linux-r3p2-01rel3 BUILD_DATE=Wed Oct 9 21:05:57 KST 2013
I/gralloc ( 1863): using (fd=14)
I/gralloc ( 1863): id = s3cfb
I/gralloc ( 1863): xres = 480 px
I/gralloc ( 1863): yres = 800 px
I/gralloc ( 1863): xres_virtual = 480 px
I/gralloc ( 1863): yres_virtual = 1600 px
I/gralloc ( 1863): bpp = 32
I/gralloc ( 1863): r = 16:8
I/gralloc ( 1863): g = 8:8
I/gralloc ( 1863): b = 0:8
I/gralloc ( 1863): width = 56 mm (217.714279 dpi)
I/gralloc ( 1863): height = 93 mm (218.494629 dpi)
I/gralloc ( 1863): refresh rate = 60.38 Hz
I/run-parts( 1869): SELinux: Loaded file_contexts from /file_contexts
I/run-parts( 1869): SELinux: Skipping restorecon_recursive(/data)
I/SurfaceFlinger( 1863): Using composer version 1.0
I/SurfaceFlinger( 1863): EGL information:
W/SurfaceFlinger( 1863): Ignoring duplicate VSYNC event from HWC (t=0)
I/SurfaceFlinger( 1863): vendor : Android
I/SurfaceFlinger( 1863): version : 1.4 Android META-EGL
I/SurfaceFlinger( 1863): extensions: EGL_KHR_get_all_proc_addresses EGL_ANDROID_presentation_time EGL_KHR_image EGL_KHR_image_base EGL_KHR_image_pixmap EGL_KHR_gl_texture_2D_image EGL_KHR_gl_texture_cubemap_image EGL_KHR_gl_renderbuffer_image EGL_KHR_reusable_sync EGL_KHR_fence_sync EGL_EXT_create_context_robustness EGL_ANDROID_image_native_buffer EGL_ANDROID_recordable
I/SurfaceFlinger( 1863): Client API: OpenGL_ES
I/SurfaceFlinger( 1863): EGLSurface: 8-8-8-8, config=0x60000014
I/SurfaceFlinger( 1863): OpenGL ES informations:
I/SurfaceFlinger( 1863): vendor : ARM
I/SurfaceFlinger( 1863): renderer : Mali-400 MP
I/SurfaceFlinger( 1863): version : OpenGL ES 2.0
I/SurfaceFlinger( 1863): extensions: GL_EXT_debug_marker GL_OES_texture_npot GL_OES_compressed_ETC1_RGB8_texture GL_OES_standard_derivatives GL_OES_EGL_image GL_OES_depth24 GL_ARM_rgba8 GL_ARM_mali_shader_binary GL_OES_depth_texture GL_OES_packed_depth_stencil GL_EXT_texture_format_BGRA8888 GL_EXT_blend_minmax GL_OES_EGL_image_external GL_OES_EGL_sync GL_OES_rgb8_rgba8 GL_EXT_multisampled_render_to_texture GL_EXT_discard_framebuffer GL_OES_get_program_binary GL_ARM_mali_program_binary GL_EXT_shader_texture_lod GL_EXT_robustness GL_OES_depth_texture_cube_map
I/SurfaceFlinger( 1863): GL_MAX_TEXTURE_SIZE = 4096
I/SurfaceFlinger( 1863): GL_MAX_VIEWPORT_DIMS = 4096
E/cutils-trace( 1863): Error opening trace file: No such file or directory (2)
I/SELinuxLabel( 1948): /data relabel complete
D/SurfaceFlinger( 1863): Set power mode=2, type=0 flinger=0x40c82000
I/SELinuxLabel( 1956): /cache relabel starting...
I/run-parts( 1869): SELinux: Loaded file_contexts from /file_contexts
I/run-parts( 1869): SELinux: Skipping restorecon_recursive(/cache)
I/SELinuxLabel( 1959): /cache relabel complete
D/SurfaceFlinger( 1863): SF. shader cache generated - 26 shaders in 48.281040 ms
D/libEGL ( 1955): loaded /system/lib/egl/libEGL_mali.so
D/libEGL ( 1955): loaded /system/lib/egl/libGLESv1_CM_mali.so
D/libEGL ( 1955): loaded /system/lib/egl/libGLESv2_mali.so
E/ ( 1955): Device driver API match
E/ ( 1955): Device driver API version: 23
E/ ( 1955): User space API version: 23
E/ ( 1955): mali: REVISION=Linux-r3p2-01rel3 BUILD_DATE=Wed Oct 9 21:05:57 KST 2013
E/cutils-trace( 1955): Error opening trace file: No such file or directory (2)
E/BootAnimation( 1955): couldn't find audio_conf.txt
W/BootAnimation( 1955): Audio service is not initiated.
D/BootAnimation( 1955): Use save memory method, maybe small fps in actual.
D/BootAnimation( 1955): Use save memory method, maybe small fps in actual.