Yesterday I built b2g BRANCH=master for Keon, but the touch events was
mostly failing and the feeling was laggy.
By checking adb shell top i noticed that b2g was taking 100% cpu all the
time. So I strace it... and got this infinite loop.
The thing is that 'recv' on fd 1077949332 (wtf) is returning 0?? is this
an strace bug?
also see this:
read(35, 0xbeb9f680, 32) = -1 EAGAIN (Try again)
fd35 is a pipe (according to /proc/fd/35). So I guess it's a broken one,
but which one?
Also, I tried to run b2g by hand and got this error:
[TabChild] SHOW (w,h)= (0, 0)
loading app://communications.gaiamobile.org/ftu/index.html, 1
###################################### forms.js loaded
############################### browserElementPanning.js loaded
######################## BrowserElementChildPreload.js loaded
[Child 836] ###!!! ABORT: constructor for actor failed: file
/home/pancake/prg/B2G/objdir-gecko/ipc/ipdl/PLayerTransactionChild.cpp,
line 228
(works fine if i do 'start b2g' instead of '/system/b2g/b2g')
any idea?
-----8<-----[ strace log ]-------8<--------
recv(1077949332, 0x81, 2147483647,
MSG_DONTROUTE|MSG_PEEK|MSG_EOR|MSG_TRUNC|MSG_ERRQUEUE|MSG_DONTWAIT|MSG_CONFIRM|MSG_NOSIGNAL|0xfff20000)
= 0
gettimeofday({1369385114, 795038}, NULL) = 0
gettimeofday({1369385114, 795343}, NULL) = 0
gettimeofday({1369385114, 795526}, NULL) = 0
gettimeofday({1369385114, 795648}, NULL) = 0
msgget(0x1, 0xbeb9f7d0, 0, 0x1) = 0
msgget(0x1, 0xbeb9f7e0, 0, 0x1) = 0
gettimeofday({1369385114, 795953}, NULL) = 0
gettimeofday({1369385114, 796076}, NULL) = 0
gettimeofday({1369385114, 796533}, NULL) = 0
gettimeofday({1369385114, 797052}, NULL) = 0
gettimeofday({1369385114, 797174}, NULL) = 0
gettimeofday({1369385114, 797510}, NULL) = 0
gettimeofday({1369385114, 797632}, NULL) = 0
gettimeofday({1369385114, 797907}, NULL) = 0
gettimeofday({1369385114, 798090}, NULL) = 0
gettimeofday({1369385114, 798212}, NULL) = 0
recv(1077949332, 0x81, 2147483647,
MSG_DONTROUTE|MSG_EOR|MSG_TRUNC|MSG_ERRQUEUE|MSG_DONTWAIT|MSG_CONFIRM|MSG_NOSIGNAL|0xfff20000)
= 0
gettimeofday({1369385114, 798914}, NULL) = 0
gettimeofday({1369385114, 799219}, NULL) = 0
gettimeofday({1369385114, 799402}, NULL) = 0
gettimeofday({1369385114, 799524}, NULL) = 0
msgget(0x1, 0xbeb9f7d0, 0, 0x1) = 0
msgget(0x1, 0xbeb9f7e0, 0, 0x1) = 0
gettimeofday({1369385114, 799829}, NULL) = 0
gettimeofday({1369385114, 799982}, NULL) = 0
gettimeofday({1369385114, 800409}, NULL) = 0
gettimeofday({1369385114, 800989}, NULL) = 0
gettimeofday({1369385114, 801141}, NULL) = 0
gettimeofday({1369385114, 801508}, NULL) = 0
gettimeofday({1369385114, 801630}, NULL) = 0
gettimeofday({1369385114, 801874}, NULL) = 0
gettimeofday({1369385114, 802087}, NULL) = 0
gettimeofday({1369385114, 802210}, NULL) = 0
recv(1077949332, 0x81, 2147483647,
MSG_PEEK|MSG_EOR|MSG_TRUNC|MSG_ERRQUEUE|MSG_DONTWAIT|MSG_CONFIRM|MSG_NOSIGNAL|0xfff20000)
= 0
gettimeofday({1369385114, 802911}, NULL) = 0
gettimeofday({1369385114, 803217}, NULL) = 0
gettimeofday({1369385114, 803430}, NULL) = 0
gettimeofday({1369385114, 803552}, NULL) = 0
msgget(0x1, 0xbeb9f7d0, 0, 0x1) = 0
msgget(0x1, 0xbeb9f7e0, 0, 0x1) = 0
gettimeofday({1369385114, 803857}, NULL) = 0
gettimeofday({1369385114, 803980}, NULL) = 0
gettimeofday({1369385114, 804468}, NULL) = 0
gettimeofday({1369385114, 805017}, NULL) = 0
gettimeofday({1369385114, 805170}, NULL) = 0
gettimeofday({1369385114, 805505}, NULL) = 0
gettimeofday({1369385114, 805628}, NULL) = 0
gettimeofday({1369385114, 805902}, NULL) = 0
gettimeofday({1369385114, 806085}, NULL) = 0
gettimeofday({1369385114, 806207}, NULL) = 0
recv(1077949332, 0x81, 2147483647,
MSG_EOR|MSG_TRUNC|MSG_ERRQUEUE|MSG_DONTWAIT|MSG_CONFIRM|MSG_NOSIGNAL|0xfff20000)
= 0
gettimeofday({1369385114, 806909}, NULL) = 0
gettimeofday({1369385114, 807214}, NULL) = 0
gettimeofday({1369385114, 807428}, NULL) = 0
gettimeofday({1369385114, 807550}, NULL) = 0
msgget(0x1, 0xbeb9f7d0, 0, 0x1) = 0
semget(0x22, 0xbeb9f6b0, 0x10, 0) = 1
read(35, "w", 32) = 1
read(35, 0xbeb9f680, 32) = -1 EAGAIN (Try again)
msgget(0x1, 0xbeb9f7e0, 0, 0x1) = 0
gettimeofday({1369385114, 808130}, NULL) = 0
gettimeofday({1369385114, 808283}, NULL) = 0
gettimeofday({1369385114, 808710}, NULL) = 0
gettimeofday({1369385114, 809229}, NULL) = 0
gettimeofday({1369385114, 809381}, NULL) = 0
gettimeofday({1369385114, 809717}, NULL) = 0
gettimeofday({1369385114, 809839}, NULL) = 0
gettimeofday({1369385114, 810114}, NULL) = 0
gettimeofday({1369385114, 810297}, NULL) = 0
gettimeofday({1369385114, 810419}, NULL) = 0
recv(1077949332, 0x81, 2147483647,
MSG_DONTROUTE|MSG_PEEK|MSG_CTRUNC|MSG_EOR|MSG_ERRQUEUE|MSG_DONTWAIT|MSG_CONFIRM|MSG_PROBE|MSG_NOSIGNAL|0xfff20000)
= 0
write(36, "w", 1) = 1
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