nsecs = timer.it_value.tv_sec *
UM_NSEC_PER_SEC +
timer.it_value.tv_usec *
UM_NSEC_PER_USEC;
nsecs += os_nsecs();
Not looking at the rest of the code, the first thing that comes to my
mind is
Hurray, Houston we have ignition.
We now have working userspace timers.
It is still schizophrenic - userspace is HZ, kernel is NOHZ because the
userpace has to keep checking did the kernel timer fire yet at a HZ
interval. However, even that is a major progress compared to having
userspace timer
Hi Thomas, hi Richard,
It is now possible to reproducibly hang it. I have not been able to
concoct a synthetic test (yet), but a non-synthetic one, namely
installing an update to base-files on Debian is a guaranteed hang. So IO
on itself does not hang it, CPU on itself does not, a mix of two
The likely suspect is arch/um/os-Linux/skas/process.c
It is spinning in the while(1) loop.
However, the current code looks correct and the original code does not
make any sense at least to me:
Original code gets the _VALUE_ of the current userspace itimer() and it
ensures that the signal is
On 11/05/15 18:00, Thomas Meyer wrote:
Hi,
maybe there is a bug in how the timers are created for all user space
processes.
In the latest patch I use os__timer_remain for the initial interval.
The idea was to launch all timers at the same time. But I now think this can
never work using
Hi,
maybe there is a bug in how the timers are created for all user space processes.
In the latest patch I use os__timer_remain for the initial interval.
The idea was to launch all timers at the same time. But I now think this can
never work using relative times, especially when os__timer_remain
On 11/05/15 18:41, Thomas Meyer wrote:
Am 11.05.2015 7:31 nachm. schrieb Anton Ivanov
anton.iva...@kot-begemot.co.uk:
On 11/05/15 18:20, Anton Ivanov wrote:
On 11/05/15 18:00, Thomas Meyer wrote:
Hi,
maybe there is a bug in how the timers are created for all user space
processes.
In the
Am 11.05.2015 9:42 nachm. schrieb Anton Ivanov anton.iva...@kot-begemot.co.uk:
On 11/05/15 18:41, Thomas Meyer wrote:
Am 11.05.2015 7:31 nachm. schrieb Anton Ivanov
anton.iva...@kot-begemot.co.uk:
On 11/05/15 18:20, Anton Ivanov wrote:
On 11/05/15 18:00, Thomas Meyer wrote:
Hi,
Am 10.05.2015 um 16:34 schrieb Thomas Meyer:
Am 10.05.2015 um 14:35 schrieb Richard Weinberger
richard.weinber...@gmail.com:
On Sun, May 10, 2015 at 1:14 AM, Thomas Meyer tho...@m3y3r.de wrote:
Hi,
Changes:
- also create posix timer in stub_clone_handler()
- incorporated antons remarks
On 11/05/15 18:20, Anton Ivanov wrote:
On 11/05/15 18:00, Thomas Meyer wrote:
Hi,
maybe there is a bug in how the timers are created for all user space
processes.
In the latest patch I use os__timer_remain for the initial interval.
The idea was to launch all timers at the same time. But I
Am 11.05.2015 7:31 nachm. schrieb Anton Ivanov anton.iva...@kot-begemot.co.uk:
On 11/05/15 18:20, Anton Ivanov wrote:
On 11/05/15 18:00, Thomas Meyer wrote:
Hi,
maybe there is a bug in how the timers are created for all user space
processes.
In the latest patch I use
Am 10.05.2015 um 16:34 schrieb Thomas Meyer:
Am 10.05.2015 um 14:35 schrieb Richard Weinberger
richard.weinber...@gmail.com:
On Sun, May 10, 2015 at 1:14 AM, Thomas Meyer tho...@m3y3r.de wrote:
Hi,
Changes:
- also create posix timer in stub_clone_handler()
- incorporated antons remarks
On Sun, May 10, 2015 at 1:14 AM, Thomas Meyer tho...@m3y3r.de wrote:
Hi,
Changes:
- also create posix timer in stub_clone_handler()
- incorporated antons remarks
Hm, this patch does a *lot* more than the changelog says.
diff --git a/arch/um/Makefile b/arch/um/Makefile
index
On 10/05/15 15:34, Thomas Meyer wrote:
Am 10.05.2015 um 14:35 schrieb Richard Weinberger
richard.weinber...@gmail.com:
On Sun, May 10, 2015 at 1:14 AM, Thomas Meyer tho...@m3y3r.de wrote:
Hi,
Changes:
- also create posix timer in stub_clone_handler()
- incorporated antons remarks
Hm,
On 10/05/15 13:35, Richard Weinberger wrote:
On Sun, May 10, 2015 at 1:14 AM, Thomas Meyer tho...@m3y3r.de wrote:
Hi,
Changes:
- also create posix timer in stub_clone_handler()
- incorporated antons remarks
Hm, this patch does a *lot* more than the changelog says.
Richard, I think this is
Am 10.05.2015 um 14:35 schrieb Richard Weinberger
richard.weinber...@gmail.com:
On Sun, May 10, 2015 at 1:14 AM, Thomas Meyer tho...@m3y3r.de wrote:
Hi,
Changes:
- also create posix timer in stub_clone_handler()
- incorporated antons remarks
Hm, this patch does a *lot* more than
Hi,
Changes:
- also create posix timer in stub_clone_handler()
- incorporated antons remarks
diff --git a/arch/um/Makefile b/arch/um/Makefile
index 17d4460..a4a434f 100644
--- a/arch/um/Makefile
+++ b/arch/um/Makefile
@@ -130,7 +130,7 @@ export LDS_ELF_FORMAT := $(ELF_FORMAT)
# The wrappers
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