LowMemoryKiller zabija mnóstwo aplikacji systemowych i wymusza śmierć w przestrzeni użytkownika, ale „wolny” mówi, że jest dużo pamięci

Przez pewien czas miałem problem, w którym kluczowe procesy systemowe były wymuszane przez LowmemoryKiller / OOM.

Po otrzymaniu pomocy dodałem 500 MB plik wymiany działający natywnie kilka dni temu, aby spróbować zmniejszyć presję pamięci i wyzwalacze lowmemkiller ( wątek ze szczegółami tutaj ). Dane wyjściowe freepokazały dodatkowe 500 MB miejsca, które - jak sądziłem - było wystarczające, aby zapobiec wszelkim problemom związanym z brakiem pamięci, które wymuszały proces systemowy.

Ale to nie pomogło. Zupełnie niespodziewanie nagle znowu dostałem dość błędne „wszystko zostało zabite przez LowMemKiller”, z około 6 plikami zrzutu pamięci utworzonymi w zaledwie 100 sekund, a następnie awarią przestrzeni użytkownika, a dziennik jądra (dmesg) sugeruje, że niski problemy z pamięcią były jedynym zgłaszanym problemem, mimo że tym razem duża liczba zamian była dostępna i rozpoznawana przez system (patrz freeponiżej).

Oto odpowiednia część dmesg >dmesg.txtkrótko po initzrestartowaniu przestrzeni użytkownika. W pierwszej części dziennika mijają długie okresy kilku sekund, w których nic nowego się nie dzieje; gdy przestrzeń użytkownika zostanie zabita w ciągu 100 sekund w 2105-2208, nie ma nic wcześniejszego ani śladu przyczyny.

Telefon włączony

<6>[001992.334927,0] : Report pwrkey press event
<6>[001992.386743,0] mdss_dsi_on+: ctrl=eaec8010 ndx=0
<6>[001992.424178,0] mdss_dsi_on-: 
<6>[001992.424193,0] mdss_dsi_panel_on+: ctrl=eaec8010 ndx=0
<6>[001992.428789,0] : Report pwrkey release event
<6>[001993.730749,0] synaptics_dsx_sensor_state: state change SUSPEND -> ACTIVE
<6>[001993.731405,0] : mdss_dsi_panel_on-. Pwr_mode(0x0A) = 0x9c
<6>[001993.831117,0] qcom,leds-qpnp leds-qpnp-eb62f600: backlight on

Nic w dzienniku przez 40 sekund. Następnie jest kilka wybuchów zabijania z małą ilością pamięci, oddzielonych krótkimi przerwami trwającymi około 5-20 sekund

<6>[002033.125104,1] lowmemorykiller: Killing 'system:ui' (8151), adj 1000, to free 40656kB on behalf of 'kswapd0' (81) because cache 122600kB is below limit 122880kB for oom_score_adj 1000. Free memory is 3200kB above reserved
<6>[002034.172404,2] lowmemorykiller: Killing 'changelogviewer' (7238), adj 1000, to free 32652kB on behalf of 'kswapd0' (81) because cache 121376kB is below limit 122880kB for oom_score_adj 1000. Free memory is 6776kB above reserved
<6>[002035.895963,0] : Report pwrkey press event
<6>[002035.307927,1] lowmemorykiller: Killing 'droid.deskclock' (28714), adj 1000, to free 31756kB on behalf of 'kswapd0' (81) because cache 120252kB is below limit 122880kB for oom_score_adj 1000. Free memory is 5532kB above reserved
<6>[002036.387002,0] : Report pwrkey release event
<6>[002036.478425,0] lowmemorykiller: Killing 'com.ebay.mobile' (26933), adj 1000, to free 29016kB on behalf of 'kswapd0' (81) because cache 120268kB is below limit 122880kB for oom_score_adj 1000. Free memory is 3864kB above reserved
<6>[002037.923711,2] lowmemorykiller: Killing 'omm.timeservice' (6682), adj 1000, to free 24544kB on behalf of 'kswapd0' (81) because cache 112140kB is below limit 122880kB for oom_score_adj 1000. Free memory is 3072kB above reserved
<6>[002037.070531,1] lowmemorykiller: Killing 'ndroid.settings' (5632), adj 1000, to free 24344kB on behalf of 'kswapd0' (81) because cache 108888kB is below limit 122880kB for oom_score_adj 1000. Free memory is 5484kB above reserved
<6>[002037.617332,1] lowmemorykiller: Killing 'd.process.media' (5610), adj 1000, to free 23552kB on behalf of 'kswapd0' (81) because cache 109164kB is below limit 122880kB for oom_score_adj 1000. Free memory is 3964kB above reserved
<6>[002038.335908,0] lowmemorykiller: Killing 'enmod.lockclock' (28743), adj 1000, to free 21712kB on behalf of 'kswapd0' (81) because cache 107296kB is below limit 122880kB for oom_score_adj 1000. Free memory is 4616kB above reserved
<6>[002039.245833,1] lowmemorykiller: Killing 'ainfire.supersu' (8025), adj 764, to free 32380kB on behalf of 'kswapd0' (81) because cache 98160kB is below limit 98304kB for oom_score_adj 529. Free memory is 7484kB above reserved
<6>[002040.109486,0] lowmemorykiller: Killing 'd.process.acore' (8429), adj 647, to free 34448kB on behalf of 'kswapd0' (81) because cache 97952kB is below limit 98304kB for oom_score_adj 529. Free memory is 8732kB above reserved
<6>[002043.386164,2] lowmemorykiller: Killing 'putmethod.latin' (14570), adj 764, to free 20732kB on behalf of 'kswapd0' (81) because cache 97896kB is below limit 98304kB for oom_score_adj 529. Free memory is 3564kB above reserved
<6>[002047.012564,0] tapan_codec_chargepump_vdd_event: event = 1
<6>[002048.999115,2] lowmemorykiller: Killing 'd.process.media' (8782), adj 647, to free 33804kB on behalf of 'kswapd0' (81) because cache 95364kB is below limit 98304kB for oom_score_adj 529. Free memory is 4556kB above reserved
<6>[002049.385765,0] lowmemorykiller: Killing 'com.android.mms' (370), adj 529, to free 42768kB on behalf of 'kswapd0' (81) because cache 96588kB is below limit 98304kB for oom_score_adj 529. Free memory is 5264kB above reserved
<6>[002051.397263,0] init: waitpid returned pid 30519, status = 00000000
<6>[002052.710665,1] tapan_codec_chargepump_vdd_event: event = 8
<6>[002054.259864,2] lowmemorykiller: Killing 'd.process.media' (8882), adj 647, to free 33620kB on behalf of 'kswapd0' (81) because cache 93904kB is below limit 98304kB for oom_score_adj 529. Free memory is 7752kB above reserved
<6>[002055.100549,3] lowmemorykiller: Killing 'ndroid.settings' (8939), adj 764, to free 34900kB on behalf of 'kswapd0' (81) because cache 96324kB is below limit 98304kB for oom_score_adj 529. Free memory is 3920kB above reserved
<6>[002056.176783,2] lowmemorykiller: Killing 'd.process.acore' (8930), adj 764, to free 35656kB on behalf of 'kswapd0' (81) because cache 89744kB is below limit 98304kB for oom_score_adj 529. Free memory is 3688kB above reserved
<6>[002064.446038,2] lowmemorykiller: Killing 'd.process.media' (9044), adj 764, to free 33580kB on behalf of 'kswapd0' (81) because cache 90032kB is below limit 98304kB for oom_score_adj 529. Free memory is 14876kB above reserved
<6>[002083.199303,1] lowmemorykiller: Killing 'enmod.lockclock' (8974), adj 647, to free 31236kB on behalf of 'kswapd0' (81) because cache 98132kB is below limit 98304kB for oom_score_adj 529. Free memory is 3308kB above reserved
<6>[002084.892508,1] lowmemorykiller: Killing 'ndroid.settings' (9068), adj 529, to free 53876kB on behalf of 'kswapd0' (81) because cache 95092kB is below limit 98304kB for oom_score_adj 529. Free memory is 5380kB above reserved
<6>[002105.187792,0] lowmemorykiller: Killing 'enmod.trebuchet' (20303), adj 352, to free 33356kB on behalf of 'kswapd0' (81) because cache 80972kB is below limit 86016kB for oom_score_adj 176. Free memory is 3004kB above reserved
<6>[002106.510875,0] lowmemorykiller: Killing 'com.android.mms' (8906), adj 470, to free 39524kB on behalf of 'kswapd0' (81) because cache 80488kB is below limit 86016kB for oom_score_adj 176. Free memory is 16500kB above reserved
<6>[002111.395568,1] lowmemorykiller: Killing 'd.process.media' (9718), adj 529, to free 33576kB on behalf of 'kswapd0' (81) because cache 70448kB is below limit 73728kB for oom_score_adj 117. Free memory is 3484kB above reserved
<6>[002112.755785,1] lowmemorykiller: Killing 'ndroid.settings' (9766), adj 529, to free 34872kB on behalf of 'kswapd0' (81) because cache 69160kB is below limit 73728kB for oom_score_adj 117. Free memory is 3792kB above reserved
<6>[002112.892462,1] lowmemorykiller: Killing 'com.android.mms' (9736), adj 470, to free 35356kB on behalf of 'kswapd0' (81) because cache 68408kB is below limit 73728kB for oom_score_adj 117. Free memory is 7628kB above reserved
<6>[002112.906543,3] binder: release 9736:9755 transaction 7689487 out, still active
<6>[002112.386885,0] lowmemorykiller: Killing 'd.process.acore' (9757), adj 647, to free 34860kB on behalf of 'kswapd0' (81) because cache 69340kB is below limit 73728kB for oom_score_adj 117. Free memory is 4092kB above reserved
<6>[002113.952913,0] lowmemorykiller: Killing 'enmod.lockclock' (9808), adj 647, to free 31048kB on behalf of 'kswapd0' (81) because cache 73224kB is below limit 73728kB for oom_score_adj 117. Free memory is 3852kB above reserved
<6>[002114.465873,3] lowmemorykiller: Killing 'd.process.media' (9872), adj 529, to free 33528kB on behalf of 'kswapd0' (81) because cache 67308kB is below limit 73728kB for oom_score_adj 117. Free memory is 3540kB above reserved
<6>[002115.944547,3] lowmemorykiller: Killing 'd.process.acore' (9920), adj 647, to free 34788kB on behalf of 'kswapd0' (81) because cache 62112kB is below limit 73728kB for oom_score_adj 117. Free memory is 3876kB above reserved
<6>[002115.463421,3] lowmemorykiller: Killing 'ndroid.settings' (9912), adj 647, to free 34804kB on behalf of 'kswapd0' (81) because cache 61372kB is below limit 61440kB for oom_score_adj 58. Free memory is 3444kB above reserved
<6>[002116.625036,3] lowmemorykiller: Killing 'enmod.lockclock' (9947), adj 764, to free 31128kB on behalf of 'kswapd0' (81) because cache 60288kB is below limit 61440kB for oom_score_adj 58. Free memory is 3540kB above reserved
<6>[002116.660223,3] lowmemorykiller: Killing 'd.process.acore' (9960), adj 764, to free 34912kB on behalf of 'kswapd0' (81) because cache 59824kB is below limit 61440kB for oom_score_adj 58. Free memory is 3560kB above reserved
<6>[002131.486032,2] lowmemorykiller: Killing 'd.process.acore' (10031), adj 764, to free 35472kB on behalf of 'kswapd0' (81) because cache 67868kB is below limit 73728kB for oom_score_adj 117. Free memory is 21432kB above reserved
<6>[002132.304917,0] lowmemorykiller: Killing 'd.process.media' (10018), adj 1000, to free 33728kB on behalf of 'Compositor' (8575) because cache 100976kB is below limit 122880kB for oom_score_adj 1000. Free memory is 3492kB above reserved
<6>[002132.374198,1] lowmemorykiller: Killing 'ndroid.settings' (10049), adj 764, to free 34792kB on behalf of 'kswapd0' (81) because cache 64912kB is below limit 73728kB for oom_score_adj 117. Free memory is 3280kB above reserved
<6>[002132.435346,1] lowmemorykiller: Killing 'enmod.lockclock' (10067), adj 647, to free 30996kB on behalf of 'Compositor' (8575) because cache 97520kB is below limit 98304kB for oom_score_adj 529. Free memory is 3364kB above reserved
<6>[002139.202616,3] lowmemorykiller: Killing 'com.android.mms' (9890), adj 470, to free 38940kB on behalf of 'kswapd0' (81) because cache 77428kB is below limit 86016kB for oom_score_adj 176. Free memory is 3352kB above reserved
<6>[002144.987619,0] lowmemorykiller: Killing 'd.process.media' (10354), adj 529, to free 33492kB on behalf of 'kswapd0' (81) because cache 70876kB is below limit 73728kB for oom_score_adj 117. Free memory is 3952kB above reserved
<6>[002145.868772,0] lowmemorykiller: Killing 'ndroid.settings' (10410), adj 647, to free 34748kB on behalf of 'kswapd0' (81) because cache 70496kB is below limit 73728kB for oom_score_adj 117. Free memory is 9208kB above reserved
<6>[002145.500683,0] lowmemorykiller: Killing 'enmod.lockclock' (10439), adj 647, to free 30964kB on behalf of 'kswapd0' (81) because cache 69148kB is below limit 73728kB for oom_score_adj 117. Free memory is 4848kB above reserved
<6>[002146.860274,2] lowmemorykiller: Killing 'd.process.acore' (10393), adj 764, to free 35316kB on behalf of 'kswapd0' (81) because cache 66996kB is below limit 73728kB for oom_score_adj 117. Free memory is 8484kB above reserved
<6>[002146.883536,0] binder: undelivered transaction 7710205
<6>[002147.021644,1] lowmemorykiller: Killing 'd.process.acore' (10507), adj 764, to free 35104kB on behalf of 'kswapd0' (81) because cache 66948kB is below limit 73728kB for oom_score_adj 117. Free memory is 8344kB above reserved
<6>[002147.496709,0] lowmemorykiller: Killing 'd.process.media' (10495), adj 764, to free 33760kB on behalf of 'kswapd0' (81) because cache 65184kB is below limit 73728kB for oom_score_adj 117. Free memory is 8972kB above reserved
<6>[002166.712750,0] lowmemorykiller: Killing 'ndroid.settings' (10529), adj 764, to free 34780kB on behalf of 'kswapd0' (81) because cache 74940kB is below limit 86016kB for oom_score_adj 176. Free memory is 4768kB above reserved
<6>[002166.041116,1] lowmemorykiller: Killing 'enmod.lockclock' (10545), adj 647, to free 30984kB on behalf of 'kswapd0' (81) because cache 76512kB is below limit 86016kB for oom_score_adj 176. Free memory is 4996kB above reserved
<6>[002183.893105,1] lowmemorykiller: Killing 'com.ebay.mobile' (10668), adj 529, to free 46620kB on behalf of 'kswapd0' (81) because cache 71236kB is below limit 73728kB for oom_score_adj 117. Free memory is 4588kB above reserved
<6>[002183.175603,1] lowmemorykiller: Killing 'com.android.mms' (10372), adj 294, to free 39168kB on behalf of 'kswapd0' (81) because cache 69516kB is below limit 73728kB for oom_score_adj 117. Free memory is 4568kB above reserved
<6>[002184.262462,1] lowmemorykiller: Killing 'putmethod.latin' (20205), adj 117, to free 31552kB on behalf of 'kswapd0' (81) because cache 64740kB is below limit 73728kB for oom_score_adj 117. Free memory is 4528kB above reserved
<6>[002185.901421,1] lowmemorykiller: Killing 'pal.androidterm' (20591), adj 117, to free 22780kB on behalf of 'kswapd0' (81) because cache 62628kB is below limit 73728kB for oom_score_adj 117. Free memory is 4548kB above reserved
<6>[002185.077441,0] init: waitpid returned pid 26289, status = 0000fc00
<6>[002185.611288,2] lowmemorykiller: Killing 'android.smspush' (20927), adj 58, to free 16176kB on behalf of 'kswapd0' (81) because cache 56236kB is below limit 61440kB for oom_score_adj 58. Free memory is 3392kB above reserved
<6>[002186.955956,0] init: waitpid returned pid 26285, status = 00000001
<6>[002186.006426,1] init: waitpid returned pid 26256, status = 00008100
<6>[002186.431086,0] lowmemorykiller: Killing 'mozilla.firefox' (6712), adj 0, to free 354160kB on behalf of 'kswapd0' (81) because cache 46540kB is below limit 49152kB for oom_score_adj 0. Free memory is 5192kB above reserved
<6>[002186.606429,1] init: waitpid returned pid 19765, status = 00000000
<6>[002191.881505,2] lowmemorykiller: Killing 'd.process.media' (10858), adj 1000, to free 33140kB on behalf of 'kswapd0' (81) because cache 87004kB is below limit 98304kB for oom_score_adj 529. Free memory is 3960kB above reserved
<6>[002191.291965,1] lowmemorykiller: Killing 'd.process.acore' (10918), adj 764, to free 35228kB on behalf of 'kswapd0' (81) because cache 81776kB is below limit 86016kB for oom_score_adj 176. Free memory is 3832kB above reserved
<6>[002191.591134,1] lowmemorykiller: Killing 'ndroid.settings' (10928), adj 647, to free 34460kB on behalf of 'kswapd0' (81) because cache 77724kB is below limit 86016kB for oom_score_adj 176. Free memory is 4280kB above reserved
<6>[002192.697565,2] lowmemorykiller: Killing 'enmod.lockclock' (10957), adj 529, to free 30720kB on behalf of 'kswapd0' (81) because cache 76880kB is below limit 86016kB for oom_score_adj 176. Free memory is 3604kB above reserved
<6>[002192.739096,2] lowmemorykiller: Killing 'com.android.mms' (10883), adj 470, to free 38292kB on behalf of 'kswapd0' (81) because cache 74704kB is below limit 86016kB for oom_score_adj 176. Free memory is 7352kB above reserved
<6>[002193.555477,2] lowmemorykiller: Killing 'enmod.trebuchet' (10844), adj 0, to free 58452kB on behalf of 'kswapd0' (81) because cache 48516kB is below limit 49152kB for oom_score_adj 0. Free memory is 3116kB above reserved
<6>[002194.171773,1] binder: undelivered transaction 7731151
<6>[002194.355847,0] lowmemorykiller: Killing 'd.process.acore' (11091), adj 529, to free 34780kB on behalf of 'kswapd0' (81) because cache 47368kB is below limit 49152kB for oom_score_adj 0. Free memory is 8656kB above reserved
<6>[002194.554944,0] lowmemorykiller: Killing 'd.process.media' (11118), adj 529, to free 33392kB on behalf of 'enmod.trebuchet' (11110) because cache 81508kB is below limit 86016kB for oom_score_adj 176. Free memory is 6088kB above reserved
<6>[002194.670126,0] lowmemorykiller: Killing 'com.android.mms' (11151), adj 294, to free 34528kB on behalf of 'kswapd0' (81) because cache 47332kB is below limit 49152kB for oom_score_adj 0. Free memory is 3564kB above reserved
<6>[002194.680946,2] binder: release 11151:11172 transaction 7731784 out, still active
<6>[002194.681060,2] binder: undelivered transaction 7731944
<6>[002195.770478,1] lowmemorykiller: Killing 're-initialized>' (11177), adj 529, to free 26236kB on behalf of 're-initialized>' (11186) because cache 80372kB is below limit 86016kB for oom_score_adj 176. Free memory is 3968kB above reserved
<6>[002195.828751,0] lowmemorykiller: Killing 'enmod.trebuchet' (11110), adj 0, to free 44916kB on behalf of 'kswapd0' (81) because cache 46796kB is below limit 49152kB for oom_score_adj 0. Free memory is 3280kB above reserved
<6>[002195.996821,2] lowmemorykiller: Killing 'd.process.acore' (11206), adj 529, to free 28148kB on behalf of 'kswapd0' (81) because cache 46216kB is below limit 49152kB for oom_score_adj 0. Free memory is 3744kB above reserved
<6>[002195.006525,3] binder: undelivered transaction 7732259
<6>[002195.111464,2] lowmemorykiller: Killing 'ndroid.settings' (11186), adj 529, to free 34436kB on behalf of 'd.process.acore' (11236) because cache 76684kB is below limit 86016kB for oom_score_adj 176. Free memory is 3412kB above reserved
<6>[002195.189925,1] lowmemorykiller: Killing 're-initialized>' (11236), adj 529, to free 27684kB on behalf of 're-initialized>' (11250) because cache 75264kB is below limit 86016kB for oom_score_adj 176. Free memory is 3748kB above reserved
<6>[002195.582460,1] lowmemorykiller: Killing 'enmod.lockclock' (11250), adj 647, to free 30716kB on behalf of 'kswapd0' (81) because cache 42068kB is below limit 49152kB for oom_score_adj 0. Free memory is 3936kB above reserved
<6>[002195.680729,3] lowmemorykiller: Killing 'd.process.acore' (11265), adj 529, to free 33160kB on behalf of 'kswapd0' (81) because cache 41232kB is below limit 49152kB for oom_score_adj 0. Free memory is 3568kB above reserved
<6>[002196.766706,0] lowmemorykiller: Killing 'enmod.trebuchet' (11217), adj 0, to free 43560kB on behalf of 'kswapd0' (81) because cache 40444kB is below limit 49152kB for oom_score_adj 0. Free memory is 3448kB above reserved
<6>[002201.374233,0] : Report pwrkey press event
<6>[002201.518183,0] : Report pwrkey release event
<6>[002202.657554,1] mdss_dsi_panel_off+: ctrl=eaec8010 ndx=0
<6>[002202.657986,0] synaptics_dsx_sensor_state: state change ACTIVE -> SUSPEND
<6>[002203.897141,0] mdss_dsi_panel_off-: 
<6>[002203.897156,0] mdss_dsi_off+: ctrl=eaec8010 ndx=0
<6>[002203.936876,0] mdss_dsi_off-: 

W tym momencie wszystko, co jeszcze nie zawiodło, teraz zawodzi. Przestrzeń użytkownika zostaje zabita i uruchomiona ponownie

<6>[002203.037750,0] : Core dump to |/system/bin/coredump Binder_4 19920 1417523206 pipe failed
<6>[002203.281135,0] binder: undelivered transaction 7733258
<6>[002203.281314,0] binder: undelivered transaction 7733265
<6>[002203.281444,0] binder: undelivered transaction 7733271
<6>[002203.281597,0] binder: undelivered transaction 7733366
<6>[002203.281681,0] binder: undelivered transaction 7733378
<6>[002203.282023,0] binder: undelivered transaction 7733372
<6>[002203.282108,0] binder: undelivered transaction 7733373
<6>[002203.282258,0] binder: undelivered transaction 7733374
<6>[002203.282340,0] binder: undelivered transaction 7733375
<6>[002203.282488,0] binder: undelivered transaction 7733376
<6>[002204.093925,0] : Report pwrkey press event
<6>[002204.306457,0] : Report pwrkey release event
<6>[002207.955756,0] : Core dump to |/system/bin/coredump system_server 1142 1417523210 pipe failed
<6>[002207.052286,0] mdss_dsi_on+: ctrl=eaec8010 ndx=0
<6>[002207.075781,1] alarm_release: clear alarm, pending 0
<6>[002207.075791,1] alarm_release: clear alarm, pending 0
<6>[002207.075799,1] alarm_release: clear alarm, pending 0
<6>[002207.089757,0] mdss_dsi_on-: 
<6>[002207.089772,0] mdss_dsi_panel_on+: ctrl=eaec8010 ndx=0
<6>[002207.104989,1] init: computing context for service '/system/bin/bootanimation'
<5>[002207.106139,1] init: starting 'bootanim'
<6>[002207.136155,1] : Core dump to |/system/bin/coredump Binder_7 1387 1417523210 pipe failed
<6>[002207.147220,1] binder: undelivered death notification, 60d6b368
<6>[002207.147232,1] binder: undelivered death notification, 60d6b780
<6>[002207.147241,1] binder: undelivered death notification, 5cdca680
<6>[002207.147249,1] binder: undelivered death notification, 5bf36ec0
<6>[002207.147261,1] binder: undelivered death notification, 5cdcb4a0
<6>[002207.147272,1] binder: undelivered death notification, 5cdd1880
<6>[002207.147281,1] binder: undelivered death notification, 5cdcb460
<6>[002207.185322,1] init: waitpid returned pid 385, status = 00000009
<5>[002207.185340,1] init: process 'debuggerd', pid 385 exited
<5>[002207.185355,1] init: process 'debuggerd' killing any children in process group
<6>[002207.185940,1] init: computing context for service '/system/bin/debuggerd'
<6>[002207.185963,2] : Core dump to |/system/bin/coredump Binder_2 1400 1417523210 pipe failed
<5>[002207.186211,1] init: starting 'debuggerd'
<6>[002207.186764,2] : Core dump to |/system/bin/coredump Binder_4 1413 1417523210 pipe failed
<6>[002207.194796,2] binder: undelivered death notification, 5cdcf108
<6>[002207.194807,2] binder: undelivered death notification, 60b5faa8
<6>[002207.194816,2] binder: undelivered death notification, 60b5fec0
<6>[002207.194824,2] binder: undelivered death notification, 5cdca680
<6>[002207.194832,2] binder: undelivered death notification, 601f2830
<6>[002207.194840,2] binder: undelivered death notification, 60def500
<6>[002207.194849,2] binder: undelivered death notification, 5cdd1488
<6>[002207.194857,2] binder: undelivered death notification, 60def1f0
<6>[002207.200117,2] binder: undelivered death notification, 5cdce0d8
<6>[002207.200129,2] binder: undelivered death notification, 60c6b0c8
<6>[002207.200137,2] binder: undelivered death notification, 60c6b4e0
<6>[002207.200146,2] binder: undelivered death notification, 5cdca670
<6>[002207.200154,2] binder: undelivered death notification, 5cdd1940
<6>[002207.200163,2] binder: undelivered death notification, 5d84f710
<6>[002207.200171,2] binder: undelivered death notification, 5cdd1430
<6>[002207.200179,2] binder: undelivered death notification, 5cdd1f90
<6>[002207.276277,1] init: waitpid returned pid 388, status = 00000009
<5>[002207.276294,1] init: process 'zygote', pid 388 exited
<5>[002207.285604,0] init: process 'zygote' killing any children in process group
<5>[002207.285863,0] init: service 'media' is being killed
<5>[002207.287087,0] init: service 'netd' is being killed
<6>[002207.287441,0] init: computing context for service '/system/bin/app_process'
<5>[002207.287638,0] init: starting 'zygote'
<6>[002207.289856,0] init: waitpid returned pid 383, status = 00000009
<5>[002207.289874,0] init: process 'netd', pid 383 exited
<5>[002207.289888,0] init: process 'netd' killing any children in process group
<6>[002207.290323,0] init: computing context for service '/system/bin/netd'
<5>[002207.290529,0] init: starting 'netd'
<6>[002207.297300,0] init: waitpid returned pid 391, status = 00000009
<5>[002207.297316,0] init: process 'media', pid 391 exited
<5>[002207.297331,0] init: process 'media' killing any children in process group
<6>[002207.297373,2] init: Created socket '/dev/socket/mdns' with mode '660', user '0', group '1000'
<6>[002207.297610,0] init: computing context for service '/system/bin/mediaserver'
<6>[002207.297768,2] init: Created socket '/dev/socket/dnsproxyd' with mode '660', user '0', group '3003'
<5>[002207.297778,0] init: starting 'media'
<6>[002207.298187,2] init: Created socket '/dev/socket/netd' with mode '660', user '0', group '1000'
<6>[002207.298939,2] init: Created socket '/dev/socket/zygote' with mode '660', user '0', group '1000'
<6>[002207.315254,0] : Report pwrkey press event
<6>[002207.386012,0] synaptics_dsx_sensor_state: state change SUSPEND -> ACTIVE
<6>[002207.386197,0] : mdss_dsi_panel_on-. Pwr_mode(0x0A) = 0x9c
<6>[002207.446161,0] init: waitpid returned pid 1373, status = 00000009
<6>[002208.865272,0] : Report pwrkey release event
<7>[002210.508025,0] SELinux: initialized (dev tmpfs, type tmpfs), uses transition SIDs
<6>[002213.793599,0] : Report pwrkey press event
<6>[002213.970096,0] : Report pwrkey release event
<6>[002213.447327,0] : Core dump to |/system/bin/coredump zygote 11352 1417523217 pipe failed
<6>[002213.508195,0] init: waitpid returned pid 11352, status = 0000000b
<5>[002213.508377,0] init: process 'zygote', pid 11352 exited
<5>[002213.508475,0] init: process 'zygote' killing any children in process group
<5>[002213.508759,0] init: service 'media' is being killed
<5>[002213.512948,0] init: service 'netd' is being killed
<6>[002213.513683,0] init: waitpid returned pid 11355, status = 00000009
<5>[002213.513805,0] init: process 'media', pid 11355 exited
<5>[002213.513981,0] init: process 'media' killing any children in process group
<6>[002213.514315,0] init: computing context for service '/system/bin/app_process'
<5>[002213.514729,0] init: starting 'zygote'
<6>[002213.515310,0] init: computing context for service '/system/bin/mediaserver'
<6>[002213.516306,1] init: Created socket '/dev/socket/zygote' with mode '660', user '0', group '1000'
<5>[002213.516644,0] init: starting 'media'
<6>[002213.520811,0] init: waitpid returned pid 11353, status = 00000009
<5>[002213.520998,0] init: process 'netd', pid 11353 exited
<5>[002213.521240,0] init: process 'netd' killing any children in process group
<6>[002213.521753,0] init: computing context for service '/system/bin/netd'
<5>[002213.522248,0] init: starting 'netd'
<6>[002213.526276,1] init: Created socket '/dev/socket/mdns' with mode '660', user '0', group '1000'
<6>[002213.526874,1] init: Created socket '/dev/socket/dnsproxyd' with mode '660', user '0', group '3003'
<6>[002213.527403,1] init: Created socket '/dev/socket/netd' with mode '660', user '0', group '1000'

Jednak swapbył aktywny i nie jest jasne, co się dzieje. Dane wyjściowe freenatychmiast po przywróceniu przestrzeni użytkownika:

             total         used         free       shared      buffers
Mem:        903272       879320        23952            0         1844
-/+ buffers:             877476        25796
Swap:       687060        19024       668036

Nie mam pojęcia, co się dzieje. Egzotyczne domysły FWIW: (1) Zamiana jest dostępna i włączona, ale z jakiegoś powodu nie była używana w przypadku, gdy pamięć się wyczerpała; (2) jakiś proces nagle uznał, że potrzebuje około 1 GB pamięci RAM i działa na pierwszym planie, powodując nieudane próby zamiany kluczowych, ale o niższym priorytecie procesów systemowych; (3) Nieprzewidywalny dramatyczny wyciek pamięci.

Nie wiem stąd, gdzie iść.

Telefon działa zrootowany CyanogenMod 11 M6 i ma 1 GB pamięci RAM, a aplikacje są dość standardowe - Firefox, WhatsApp, nic niezwykłego, żadnych dziwnych „poprawek”, żadnych dziwnych aplikacji modujących.

Jak mogę rozwiązać ten problem?

AKTUALIZACJA Zdałem sobie sprawę, że mogę znaleźć odpowiednie zrzuty rdzenia. /data/tombstoneszawiera 6 zrzutów rdzenia, które zostały utworzone w ciągu 100 sekund, w których występowały wybuchy o niskiej pamięci dmesg. Pliki zrzutu podstawowego pokazują głównie błędy segmentacji (SIGSEGV), ale proces ich posiadania jest inny dla każdego zrzutu:

2014-12-02 12:27:33 name: Thread-20  (lbesec.loader) signal 11 (SIGSEGV), code 1 (SEGV_MAPERR), fault addr b3baed71
2014-12-02 12:27:11 name: zygote  (zygote) signal 11 (SIGSEGV), code 1 (SEGV_MAPERR), fault addr 5dd8ce64
2014-12-02 12:27:05 name: zygote  (zygote) signal 11 (SIGSEGV), code 1 (SEGV_MAPERR), fault addr 5dd86e64
2014-12-02 12:26:57 name: zygote  (zygote) signal 11 (SIGSEGV), code 1 (SEGV_MAPERR), fault addr 5dc03e64
2014-12-02 12:26:47 name: system_server  (system_server) signal 11 (SIGSEGV), code 1 (SEGV_MAPERR), fault addr deadf00c
2014-12-02 12:26:46 name: Binder_4  (com.android.systemui) signal 11 (SIGSEGV), code 1 (SEGV_MAPERR), fault addr cfc08b9a

Poprzednie zrzuty rdzenia w tym samym folderze były równie różnorodne - na przykład właściciele wątków umieścili „galerię”. Niektóre pokazywały SIGABRT zamiast SIGSEGV. Poza tym prawdopodobnie potrzebne są kompetencje programistów. Co mogę zrobić, aby znaleźć przyczynę?

Android ma wbudowany system zarządzania ram, który działa całkiem dobrze. Aplikacje do zarządzania taranami są znane z tego, że są niczym więcej niż olejem wężowym. W najgorszym przypadku jest szkodliwy dla jego uruchomionych procesów. Postulowałbym, że ta aplikacja do zabijania pamięci jest główną przyczyną twoich problemów. Rozwiązanie. Ponownie flashuj urządzenie, usuń aplikację lowmemory i sprawdź, jak się zachowuje

Nie do końca rozumiem, czy problem wystąpił nagle, czy po prostu z CM11, czy nie. Moim pierwszym zaleceniem byłoby przywrócenie ustawień fabrycznych i uruchomienie ze szkieletem wybranych aplikacji, mniej instalowania ze sklepu Play lepiej i sprawdzanie, czy wystąpi problem. Jeśli tak, CM uruchamia naprawdę agresywne wartości dla LMK (może zaktualizować do czegoś nowszego lub zbudować ROM ze zmodyfikowanymi wartościami). Jeśli to nie znaczy, że jedna z twoich aplikacji mówi Androidowi, że potrzebuje pamięci RAM i Androida (być może z powodu źle ustawionych stosów dalvik lub hwui lub wartości lmk jądra) wystraszy się i po prostu rozpocznie masowe morderstwo procesów.

Jeśli ta aplikacja nie była zainstalowana w telefonie podczas zakupu, ale została zainstalowana później, możliwe, że aplikacja, która to robi, może być złośliwym oprogramowaniem. Sugerowałbym, aby udać się prosto do Verizon i pozwolić im dowiedzieć się, co się dzieje. Może to kosztować dużo, ale jeśli można to naprawić, najprawdopodobniej jest tego warte.