[T-Mobile Samsung Galaxy S II SGH-T989] rmarquez1974:
Been running this since last night. The battery life is awesome. However I got a soft reboot, here's the last_kmsg output:

$ export PATH=/data/local/bin:$PATH

$ su

# cat what-caused-soft-reboot.zip

exited

[ 1465.768707] init: untracked pid 2451 exited

[ 1465.769042] init: untracked pid 2498 exited

[ 1465.769287] init: untracked pid 2550 exited

[ 1465.769683] init: untracked pid 2564 exited

[ 1465.769989] init: untracked pid 2635 exited

[ 1465.770263] init: untracked pid 2643 exited

[ 1465.770568] init: untracked pid 2695 exited

[ 1465.770812] init: untracked pid 2769 exited

[ 1465.771148] init: untracked pid 2820 exited

[ 1465.771423] init: untracked pid 2885 exited

[ 1465.771667] init: untracked pid 2896 exited

[ 1465.772033] init: untracked pid 2913 exited

[ 1465.772308] init: untracked pid 2966 exited

[ 1465.772583] init: untracked pid 2994 exited

[ 1465.772918] init: untracked pid 3001 exited

[ 1465.773193] init: untracked pid 3086 exited

[ 1465.773529] init: untracked pid 3095 exited

[ 1465.773803] init: untracked pid 3104 exited

[ 1465.774108] init: untracked pid 3407 exited

[ 1465.774444] init: untracked pid 3440 exited

[ 1465.774719] init: untracked pid 3947 exited

[ 1465.951721] init: Done!, 2th trial

[ 1465.951873] init: Umounting direcotry /efs

[ 1465.973876] init: Done!, 1th trial

[ 1465.974029] init: Umounting direcotry /cache

[ 1465.997467] init: Done!, 1th trial

[ 1465.997741] [sys_reboot]: cmd=0x1234567

[ 1465.997894] (sec_debug_set_upload_magic) 0

[ 1465.998168] set_dload_mode <0> ( c0278e88 )

[ 1465.998260] rs300100a7 rs300100a7.65536: shutdown

[ 1465.998413] rs300000a7 rs300000a7.65536: shutdown

[ 1465.998657] light_sensor light_sensor.0: shutdown

[ 1465.999267] dummy 8-0055: shutdown

[ 1465.999389] dummy 4-0066: shutdown

[ 1465.999481] dummy 4-0077: shutdown

[ 1466.000030] yda165 9-006c: shutdown

[ 1466.000091] i2c i2c-9: shutdown

[ 1466.000244] isa1200 17-0048: shutdown

[ 1466.000305] i2c i2c-17: shutdown

[ 1466.000366] k3dh 12-0019: shutdown

[ 1466.000518] ak8975 12-000c: shutdown

[ 1466.000579] i2c i2c-12: shutdown

[ 1466.000671] k3g 11-0069: shutdown

[ 1466.000762] i2c i2c-11: shutdown

[ 1466.000823] melfas_touchkey_driver 13-0020: shutdown

[ 1466.000885] i2c i2c-13: shutdown

[ 1466.001007] gp2a 10-0044: shutdown

[ 1466.001098] i2c i2c-10: shutdown

[ 1466.001159] max17040 15-0036: shutdown

[ 1466.001312] smb328a 15-0034: shutdown

[ 1466.001373] i2c i2c-15: shutdown

[ 1466.001464] i2c i2c-8: shutdown

[ 1466.001586] pm8901-core 7-0055: shutdown

[ 1466.001678] i2c i2c-7: shutdown

[ 1466.001739] pm8058-rtc pm8058-rtc: shutdown

[ 1466.001922] pm8058-core 6-0055: shutdown

[ 1466.002014] i2c i2c-6: shutdown

[ 1466.002075] pn544 14-002b: shutdown

[ 1466.002380] i2c i2c-14: shutdown

[ 1466.002532] fsa9480 5-0025: shutdown

[ 1466.002593] i2c i2c-5: shutdown

[ 1466.002685] audience_a2220 16-003e: shutdown

[ 1466.002807] i2c i2c-16: shutdown

[ 1466.002899] i2c i2c-2: shutdown

[ 1466.002960] SII9234C 3-0064: shutdown

[ 1466.003082] SII9234B 3-0049: shutdown

[ 1466.003173] SII9234A 3-003d: shutdown

[ 1466.003234] SII9234 3-0039: shutdown

[ 1466.003387] i2c i2c-3: shutdown

[ 1466.003448] i2c 4-000c: shutdown

[ 1466.003540] marimba-core 4-000d: shutdown

[ 1466.003601] i2c i2c-4: shutdown

[ 1466.003723] s5k5bafx 1-002d: shutdown

[ 1466.003814] m5mo 1-001f: shutdown

[ 1466.003875] i2c i2c-1: shutdown

[ 1466.004028] qt602240_ts 0-004a: shutdown

[ 1466.004089] i2c i2c-0: shutdown

[ 1466.004272] msm_sdio_al msm_sdio_al: shutdown

[ 1466.016693] charm_modem charm_modem: shutdown

[ 1467.869232] charm_modem_shutdown: MDM2AP_STATUS never went low.

[ 1468.419525] lcdc_ld9040_wvga lcdc_ld9040_wvga.0: shutdown

[ 1468.559570] Restarting system.

[ 1468.560882] set_dload_mode <0> ( c0278f3c )

No errors detected

#

Once the ui came back, I received a call.

Can some one tell me what happened?