[Galaxy A3, A5, A7, A8, A9 Android Development] adrian.badertscher.2012:
Ok - Now I know a litte bit more:

The Problem is because of mobile data.

I've activate LTE and WLAN -> no problem

I've deactivate WLAN -> UI restart

I've deavtivate LTE and use only 3g/2g -> Longer time seems to be ok, then UI restart

I've used only 3g -> same issue like with 3g/2g

I've used only 2g -> Longer time than 3g/2g - but then UI restart

So the problem could be with the modem driver?

Or Kernel?

I'm not sure.

[ 1631.572515] [2: surfaceflinger: 2135] decon_blank ++ blank_mode : 4
[ 1631.572521] [2: surfaceflinger: 2135] decon-int POWERDOWN mode: 0type (0: DSI)
[ 1631.572534] [2: surfaceflinger: 2135] decon_esd_disable_interrupt: pcd(135) is high, 0
[ 1631.592686] [2: surfaceflinger: 2135] dsim_disable ++
[ 1631.592749] [0: surfaceflinger: 2135] lcd panel: +dsim_panel_suspend
[ 1631.592752] [0: surfaceflinger: 2135] lcd panel: s6e3aa2_exit
[ 1631.595979] I[0: swapper/0: 0] mif: LNK-TX(16): fc eb 0c 00 08 00 42 00 0a 0f 05 00 00 00 00 0b
[ 1631.760720] [3: surfaceflinger: 2135] lcd panel: -dsim_panel_suspend: 1
[ 1631.762720] [0: surfaceflinger: 2135] dsim_disable --
[ 1631.762730] [0: surfaceflinger: 2135] decon_blank -- blank_mode : 4
[ 1631.762802] [0: surfaceflinger: 2135] mdnie mdnie: fb_notifier_callback: 4
[ 1631.764759] [3: migration/3: 23] IRQ141 no longer affine to CPU3
[ 1631.765677] [2: surfaceflinger: 2135] CPU3: shutdown
[ 1631.769985] [2: migration/2: 18] IRQ140 no longer affine to CPU2
[ 1631.771166] [0: surfaceflinger: 2135] CPU2: shutdown
[ 1631.781455] [0:PowerManagerSer: 3432] logger: !@autosuspend_wakeup_count_enable
[ 1631.781455] [0:PowerManagerSer: 3432]
[ 1631.781505] [0:PowerManagerSer: 3432] logger: !@autosuspend_wakeup_count_enable done
[ 1631.781505] [0:PowerManagerSer: 3432]
[ 1632.060491] I[0: Binder_B: 4227] mif: LNK-RX(40): fc eb 25 00 21 00 ab 00 08 03 03 02 02 03 32 32 ...
[ 1632.061464] I[0: rild: 3234] mif: LNK-RX(40): fc eb 25 00 21 00 ac 00 08 03 03 02 02 03 32 32 ...
[ 1632.503944] [0: kworker/0:1: 9563] MobiCore mcd: <- core_num=0x00000000, active_cpu=0x00000001
[ 1632.504258] [1: mc_fastcall: 1244] MobiCore mcd: CoreSwap ok 1 -> 0
[ 1632.506341] [1: migration/1: 13] IRQ139 no longer affine to CPU1
[ 1632.507351] [0: kworker/0:1: 9563] CPU1: shutdown
[ 1632.901690] [1: swapper/1: 0] CPU1: Booted secondary processor
[ 1632.902603] [0: kworker/0:1: 9563] MobiCore mcd: <- core_num=0x00000001, active_cpu=0x00000000
[ 1632.902671] [0: mc_fastcall: 1244] MobiCore mcd: CoreSwap ok 0 -> 1
[ 1634.730821] [0: kworker/0:0:15399] muic_print_reg_log:1b(0)0 20(6)0 24(0)0 2(e5)0 2(e4)1 2(e4)0 2(e4)0 3(0)0 4(2)0 2(e4)0 a(0)0 b(0)0 7(1f)0 13(0)0 3(21)0 4(1)0 3(20)0 2(e4)0 a(4)0 b(0)0 7(1f)0 13(0)0 13(24)1 13(24)0 13(24)0
[ 1634.737037] [0: kworker/0:0:15399] muic_print_reg_dump:CT:e4 IM1:dc IM2:0 MS1:24 MS2:1 ADC:1f DT1:4 DT2:0 RS2:6
[ 1634.797044] [0: dumpstate:17551] [VIB] sec_vib_enable 75ms
[ 1634.797482] [0: dumpstate:17551] [VIB] on
[ 1634.872745] [0: kworker/0:0:15399] [VIB] off
[ 1634.922575] [1: dumpstate:17551] [VIB] sec_vib_enable 75ms
[ 1634.922987] [1: dumpstate:17551] [VIB] on
[ 1634.998271] [1: kworker/1:2: 5658] [VIB] off
[ 1635.048156] [0: dumpstate:17551] [VIB] sec_vib_enable 75ms
[ 1635.048634] [0: dumpstate:17551] [VIB] on
[ 1635.124227] [0: kworker/0:0:15399] [VIB] off
[ 1635.469043] [0: kworker/u8:5: 8439] binder: send failed reply for transaction 1193958 to 4630:17153
[ 1635.475126] [0: EventThread: 2235] binder: 2135:2235 transaction failed 29189, size 68-0
[ 1635.514917] [0: surfaceflinger: 2135] decon_blank ++ blank_mode : 0
[ 1635.514922] [0: surfaceflinger: 2135] decon-int UNBLANK mode: 0type (0: DSI)
[ 1635.515269] [0: surfaceflinger: 2135] decon 14830000.decon_fb: pm_stay_awake
[ 1635.515273] [0: surfaceflinger: 2135] dsim_enable ++
[ 1635.550719] [0: surfaceflinger: 2135] lcd panel: +dsim_panel_displayon
[ 1635.550723] [0: surfaceflinger: 2135] lcd panel: s6e3aa2_init
[ 1635.552879] [1: Binder_6:11895] binder: 4539:11895 transaction failed 29189, size 88-4
[ 1635.581115] [0: surfaceflinger: 2135] exynos-mipi-dsi 14800000.dsim: rx fifo : 1600031c, response : 1c, rx_size : 3
[ 1635.581134] [0: surfaceflinger: 2135] dsim_read_hl_data: read addr: 4, ret: 3
[ 1635.581231] [0: surfaceflinger: 2135] lcd panel: aor: ea0
[ 1635.581245] [0: surfaceflinger: 2135] lcd panel: elvss: 1910460c
[ 1635.581271] [0: surfaceflinger: 2135] lcd panel: acl: 2, brightness: 0, auto: 0
[ 1635.581282] [0: surfaceflinger: 2135] lcd panel: hbm: 0, auto: 0
[ 1635.581300] [0: surfaceflinger: 2135] lcd panel: brightness: 0, bl: 0, nit: 2
[ 1635.642971] [1:IntentService[M:17153] binder: 4630:17153 transaction failed 29189, size 160-0
[ 1635.644779] [1:IntentService[M:17153] binder: 4630:17153 transaction failed 29189, size 80-4
[ 1635.686482] [0:IntentService[M:17153] binder: 4630:17153 transaction failed 29189, size 252-0
[ 1635.710801] [0: surfaceflinger: 2135] lcd panel: s6e3aa2_displayon
[ 1635.710950] [0: surfaceflinger: 2135] lcd panel: -dsim_panel_displayon: 1
[ 1635.711390] [0: surfaceflinger: 2135] pclk_dsi_link0: 133 Mhz
[ 1635.711393] [0: surfaceflinger: 2135] phyclk_rxclkesc0: 20 Mhz
[ 1635.711395] [0: surfaceflinger: 2135] phyclk_bitclkdiv8: 188 Mhz
[ 1635.711397] [0: surfaceflinger: 2135] sclk_dsi_link0_i_rgb_vclk: 166 Mhz
[ 1635.711399] [0: surfaceflinger: 2135] pclk_decon_int: 133 Mhz
[ 1635.711401] [0: surfaceflinger: 2135] dsim_enable --
[ 1635.711516] [0: surfaceflinger: 2135] decon_esd_enable_interrupt: pcd(135) is high, 0
[ 1635.711523] [0: surfaceflinger: 2135] decon_blank -- blank_mode : 0
[ 1635.732699] [0: surfaceflinger: 2135] lcd panel: aor: ea0
[ 1635.732730] [0: surfaceflinger: 2135] lcd panel: brightness: 0, bl: 0, nit: 2
[ 1635.732737] [0: surfaceflinger: 2135] mdnie mdnie: fb_notifier_callback: 0
[ 1635.732796] [0: surfaceflinger: 2135] mdnie mdnie: AUTO_UI
[ 1635.732981] [2: swapper/2: 0] CPU2: Booted secondary processor
[ 1635.734690] [3: swapper/3: 0] CPU3: Booted secondary processor

Best regards