I also see this Firefox 3.0 Beta 5 in Ubuntu 8.04. For me CPU is not
hitting 100% yet but its slowly increasing over a period of time.
Currently, after 45 mins of usage its about 20%.
Not sure if it helps, upon doing a `strace -p <firefox PID>`, something
is going in an infinite loop looks like. Here is the piece of the
output.
======================================================
fd=25, events=POLLIN}, {fd=26, events=POLLIN, revents=POLLIN}], 8, -1) = 1
read(26, "\372", 1) = 1
gettimeofday({1210310627, 296794}, NULL) = 0
gettimeofday({1210310627, 296849}, NULL) = 0
gettimeofday({1210310627, 296911}, NULL) = 0
gettimeofday({1210310627, 296961}, NULL) = 0
gettimeofday({1210310627, 297017}, NULL) = 0
read(3, 0x807433c, 4096) = -1 EAGAIN (Resource temporarily
unavailable)
poll([{fd=12, events=POLLIN}, {fd=3, events=POLLIN}, {fd=17,
events=POLLIN|POLLPRI}, {fd=19, events=POLLIN|POLLPRI}, {fd=20,
events=POLLIN|POLLPRI}, {fd=21, events=POLLIN|POLLPRI}, {fd=25, events=POLLIN},
{fd=26, events=POLLIN}], 8, 0) = 0
gettimeofday({1210310627, 297253}, NULL) = 0
read(3, 0x807433c, 4096) = -1 EAGAIN (Resource temporarily
unavailable)
poll([{fd=12, events=POLLIN}, {fd=3, events=POLLIN}, {fd=17,
events=POLLIN|POLLPRI}, {fd=19, events=POLLIN|POLLPRI}, {fd=20,
events=POLLIN|POLLPRI}, {fd=21, events=POLLIN|POLLPRI}, {fd=25, events=POLLIN},
{fd=26, events=POLLIN, revents=POLLIN}], 8, -1) = 1
read(26, "\372", 1) = 1
gettimeofday({1210310627, 310902}, NULL) = 0
gettimeofday({1210310627, 310978}, NULL) = 0
gettimeofday({1210310627, 311069}, NULL) = 0
gettimeofday({1210310627, 311149}, NULL) = 0
gettimeofday({1210310627, 311232}, NULL) = 0
read(3, 0x807433c, 4096) = -1 EAGAIN (Resource temporarily
unavailable)
poll([{fd=12, events=POLLIN}, {fd=3, events=POLLIN}, {fd=17,
events=POLLIN|POLLPRI}, {fd=19, events=POLLIN|POLLPRI}, {fd=20,
events=POLLIN|POLLPRI}, {fd=21, events=POLLIN|POLLPRI}, {fd=25, events=POLLIN},
{fd=26, events=POLLIN}], 8, 0) = 0
gettimeofday({1210310627, 311537}, NULL) = 0
read(3, 0x807433c, 4096) = -1 EAGAIN (Resource temporarily
unavailable)
poll([{fd=12, events=POLLIN}, {fd=3, events=POLLIN}, {fd=17,
events=POLLIN|POLLPRI}, {fd=19, events=POLLIN|POLLPRI}, {fd=20,
events=POLLIN|POLLPRI}, {fd=21, events=POLLIN|POLLPRI}, {fd=25, events=POLLIN},
{fd=26, events=POLLIN, revents=POLLIN}], 8, -1) = 1
read(26, "\372", 1) = 1
gettimeofday({1210310627, 366921}, NULL) = 0
gettimeofday({1210310627, 366977}, NULL) = 0
gettimeofday({1210310627, 367038}, NULL) = 0
gettimeofday({1210310627, 367088}, NULL) = 0
gettimeofday({1210310627, 367144}, NULL) = 0
read(3, 0x807433c, 4096) = -1 EAGAIN (Resource temporarily
unavailable)
poll([{fd=12, events=POLLIN}, {fd=3, events=POLLIN}, {fd=17,
events=POLLIN|POLLPRI}, {fd=19, events=POLLIN|POLLPRI}, {fd=20,
events=POLLIN|POLLPRI}, {fd=21, events=POLLIN|POLLPRI}, {fd=25, events=POLLIN},
{fd=26, events=POLLIN}], 8, 0) = 0
gettimeofday({1210310627, 367381}, NULL) = 0
read(3, 0x807433c, 4096) = -1 EAGAIN (Resource temporarily
unavailable)
poll([{fd=12, events=POLLIN}, {fd=3, events=POLLIN}, {fd=17,
events=POLLIN|POLLPRI}, {fd=19, events=POLLIN|POLLPRI}, {fd=20,
events=POLLIN|POLLPRI}, {fd=21, events=POLLIN|POLLPRI}, {fd=25, events=POLLIN},
{fd=26, events=POLLIN, revents=POLLIN}], 8, -1) = 1
read(26, "\372", 1) = 1
gettimeofday({1210310627, 382027}, NULL) = 0
gettimeofday({1210310627, 382111}, NULL) = 0
gettimeofday({1210310627, 382201}, NULL) = 0
gettimeofday({1210310627, 382281}, NULL) = 0
gettimeofday({1210310627, 382365}, NULL) = 0
read(3, 0x807433c, 4096) = -1 EAGAIN (Resource temporarily
unavailable)
poll([{fd=12, events=POLLIN}, {fd=3, events=POLLIN}, {fd=17,
events=POLLIN|POLLPRI}, {fd=19, events=POLLIN|POLLPRI}, {fd=20,
events=POLLIN|POLLPRI}, {fd=21, events=POLLIN|POLLPRI}, {fd=25, events=POLLIN},
{fd=26, events=POLLIN}], 8, 0) = 0
gettimeofday({1210310627, 382681}, NULL) = 0
read(3, 0x807433c, 4096) = -1 EAGAIN (Resource temporarily
unavailable)
poll([{fd=12, events=POLLIN}, {fd=3, events=POLLIN}, {fd=17,
events=POLLIN|POLLPRI}, {fd=19, events=POLLIN|POLLPRI}, {fd=20,
events=POLLIN|POLLPRI}, {fd=21, events=POLLIN|POLLPRI}, {fd=25, events=POLLIN},
{fd=26, events=POLLIN, revents=POLLIN}], 8, -1) = 1
read(26, "\372", 1) = 1
gettimeofday({1210310627, 401040}, NULL) = 0
gettimeofday({1210310627, 401104}, NULL) = 0
======================================================
--
firefox 3 beta 5 on ubuntu 8.04 loads the cPU for 100% for random length of time
https://bugs.launchpad.net/bugs/227185
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