Re: [Qemu-discuss] Blank Screen On Ubuntu

[aditya siram]

If I run an `strace` on the qemu command I can see that it's going into some kind of infinite loop. I've pasted some of the output below, I just don't know what it means.
-deech

futex(0xb7e9a5c0, FUTEX_WAKE_PRIVATE, 1) = 0

select(13, [4 5 8 12], [], [], {1, 0})  = 1 (in [4], left {0, 971493})
tgkill(32132, 32133, SIGUSR1)           = 0
futex(0xb7e9a5c0, FUTEX_WAIT_PRIVATE, 2, NULL) = 0
futex(0xb7c95ec0, FUTEX_WAIT_PRIVATE, 2, NULL) = 0

futex(0xb7c95ec0, FUTEX_WAKE_PRIVATE, 1) = 0
futex(0xb7c95ec4, FUTEX_CMP_REQUEUE_PRIVATE, 1, 2147483647, 0xb7e9a5c0, 4968) = 0
read(4, "\16\0\0\0\0\0\0\0\376\377\377\377\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0"..., 128) = 128

rt_sigaction(SIGALRM, NULL, {0xb75efd40, ~[KILL STOP RTMIN RT_1], 0}, 8) = 0
write(6, "\1\0\0\0\0\0\0\0", 8)         = 8
read(4, 0xbfde4c90, 128)                = -1 EAGAIN (Resource temporarily unavailable)

clock_gettime(CLOCK_MONOTONIC, {10734, 923516430}) = 0
clock_gettime(CLOCK_MONOTONIC, {10734, 923550234}) = 0
clock_gettime(CLOCK_MONOTONIC, {10734, 923583059}) = 0
clock_gettime(CLOCK_MONOTONIC, {10734, 923615954}) = 0

recv(10, 0xb8c7d860, 4096, 0)           = -1 EAGAIN (Resource temporarily unavailable)
select(11, [10], NULL, NULL, {0, 0})    = 0 (Timeout)
clock_gettime(CLOCK_MONOTONIC, {10734, 923730075}) = 0
gettimeofday({1353499076, 116580}, NULL) = 0

clock_gettime(CLOCK_MONOTONIC, {10734, 923796215}) = 0
timer_gettime(0, {it_interval={0, 0}, it_value={0, 0}}) = 0
timer_settime(0, 0, {it_interval={0, 0}, it_value={0, 29203785}}, NULL) = 0
gettimeofday({1353499076, 116720}, NULL) = 0

gettimeofday({1353499076, 116753}, NULL) = 0
clock_gettime(CLOCK_MONOTONIC, {10734, 923969631}) = 0
timer_gettime(0, {it_interval={0, 0}, it_value={0, 29058445}}) = 0
timer_settime(0, 0, {it_interval={0, 0}, it_value={0, 29030369}}, NULL) = 0

select(13, [4 5 8 12], [], [], {0, 0})  = 1 (in [5], left {0, 0})
read(5, "\1\0\0\0\0\0\0\0", 512)        = 8
clock_gettime(CLOCK_MONOTONIC, {10734, 924182717}) = 0
clock_gettime(CLOCK_MONOTONIC, {10734, 924216031}) = 0

clock_gettime(CLOCK_MONOTONIC, {10734, 924249066}) = 0
clock_gettime(CLOCK_MONOTONIC, {10734, 924281891}) = 0
gettimeofday({1353499076, 117131}, NULL) = 0
select(13, [4 5 8 12], [], [], {0, 0})  = 0 (Timeout)

clock_gettime(CLOCK_MONOTONIC, {10734, 924390704}) = 0
clock_gettime(CLOCK_MONOTONIC, {10734, 924424018}) = 0
clock_gettime(CLOCK_MONOTONIC, {10734, 924456983}) = 0
clock_gettime(CLOCK_MONOTONIC, {10734, 924489808}) = 0

gettimeofday({1353499076, 117339}, NULL) = 0
futex(0xb7e9a5c0, FUTEX_WAKE_PRIVATE, 1) = 0
select(13, [4 5 8 12], [], [], {1, 0})  = 1 (in [4], left {0, 971476})
tgkill(32132, 32133, SIGUSR1)           = 0
futex(0xb7c95ec4, FUTEX_CMP_REQUEUE_PRIVATE, 1, 2147483647, 0xb7e9a5c0, 4970) = 1

read(4, "\16\0\0\0\0\0\0\0\376\377\377\377\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0"..., 128) = 128
rt_sigaction(SIGALRM, NULL, {0xb75efd40, ~[KILL STOP RTMIN RT_1], 0}, 8) = 0
write(6, "\1\0\0\0\0\0\0\0", 8)         = 8

read(4, 0xbfde4c90, 128)                = -1 EAGAIN (Resource temporarily unavailable)
clock_gettime(CLOCK_MONOTONIC, {10734, 953435040}) = 0
clock_gettime(CLOCK_MONOTONIC, {10734, 953468983}) = 0
clock_gettime(CLOCK_MONOTONIC, {10734, 953502017}) = 0

clock_gettime(CLOCK_MONOTONIC, {10734, 953535891}) = 0
recv(10, 0xb8c7d860, 4096, 0)           = -1 EAGAIN (Resource temporarily unavailable)
select(11, [10], NULL, NULL, {0, 0})    = 0 (Timeout)
clock_gettime(CLOCK_MONOTONIC, {10734, 953655389}) = 0

gettimeofday({1353499076, 146506}, NULL) = 0
clock_gettime(CLOCK_MONOTONIC, {10734, 953722297}) = 0
timer_gettime(0, {it_interval={0, 0}, it_value={0, 0}}) = 0
timer_settime(0, 0, {it_interval={0, 0}, it_value={0, 29277703}}, NULL) = 0

gettimeofday({1353499076, 146646}, NULL) = 0
gettimeofday({1353499076, 146679}, NULL) = 0
clock_gettime(CLOCK_MONOTONIC, {10734, 953895923}) = 0
timer_gettime(0, {it_interval={0, 0}, it_value={0, 29148706}}) = 0

timer_settime(0, 0, {it_interval={0, 0}, it_value={0, 29104077}}, NULL) = 0
select(13, [4 5 8 12], [], [], {0, 0})  = 1 (in [5], left {0, 0})
read(5, "\1\0\0\0\0\0\0\0", 512)        = 8
clock_gettime(CLOCK_MONOTONIC, {10734, 954095319}) = 0

clock_gettime(CLOCK_MONOTONIC, {10734, 954128704}) = 0
clock_gettime(CLOCK_MONOTONIC, {10734, 954162158}) = 0
clock_gettime(CLOCK_MONOTONIC, {10734, 954197986}) = 0
gettimeofday({1353499076, 147047}, NULL) = 0

select(13, [4 5 8 12], [], [], {0, 0})  = 0 (Timeout)
clock_gettime(CLOCK_MONOTONIC, {10734, 954308685}) = 0
clock_gettime(CLOCK_MONOTONIC, {10734, 954342208}) = 0
clock_gettime(CLOCK_MONOTONIC, {10734, 954375243}) = 0

clock_gettime(CLOCK_MONOTONIC, {10734, 954408139}) = 0
gettimeofday({1353499076, 147258}, NULL) = 0
select(13, [4 5 8 12], [], [], {1, 0}^C <unfinished ...>

On Wed, Nov 21, 2012 at 5:44 AM, aditya siram <address@hidden> wrote:

Hi all,
I'm trying to get OpenFirmware to run on Qemu. I've installed Qemu-kvm from the Ubuntu 12.04 repositories and when I start it with `qemu-system-i386 -bios emuofw.rom -L /usr/share/qemu-kvm` I get a blank screen. I have both the `kvm` and `kvm-intel` drivers loaded and I have virtualization enabled in BIOS. My kernel version is 3.5.0-18-generic. I've never used Qemu before so any help is appreciated.
-deech