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On 11/08/2020 16:28, mwilck at suse.com wrote: > From: Martin Wilck <mwilck at suse.com> > > If a program opens /dev/hwrng with O_NONBLOCK and uses poll() and > non-blocking read() to retrieve random data, it ends up in a tight > loop with poll() always returning POLLIN and read() returning EAGAIN. >...

On 11/08/2020 16:28, mwilck at suse.com wrote: > From: Martin Wilck <mwilck at suse.com> > > If a program opens /dev/hwrng with O_NONBLOCK and uses poll() and > non-blocking read() to retrieve random data, it ends up in a tight > loop with poll() always returning POLLIN and read() returning EAGAIN. >...

On Wed, Jul 15, 2020 at 03:32:55PM +0200, mwilck at suse.com wrote: > From: Martin Wilck <mwilck at suse.com> > > If a program opens /dev/hwrng with O_NONBLOCK and uses poll() and > non-blocking read() to retrieve random data, it ends up in a tight > loop with poll() always returning POLLIN and read() returning EAGAIN. >...

On 11/08/2020 12:37, Philippe Mathieu-Daud? wrote: > You Cc'ed qemu-devel, so Cc'ing the virtio-rng maintainers. > > On 7/15/20 3:32 PM, mwilck at suse.com wrote: >> From: Martin Wilck <mwilck at suse.com> >> >> If a program opens /dev/hwrng with O_NONBLOCK and uses poll() and >> non-blocking read() to retrieve random data, it ends up in a tight >> loop with poll() always returning POLLIN and read() retu...

On 28/08/2020 23:34, Martin Wilck wrote: > On Wed, 2020-08-26 at 08:26 -0400, Michael S. Tsirkin wrote: >> On Tue, Aug 11, 2020 at 04:42:32PM +0200, Laurent Vivier wrote: >>> On 11/08/2020 16:28, mwilck at suse.com wrote: >>>> From: Martin Wilck <mwilck at suse.com> >>>> >>>> If a program opens /dev/hwrng with O_NONBLOCK and uses poll() and >>>> non-blocking read() to retrieve random data, it ends up in a >>>> tight >>>>...

On Tue, Aug 11, 2020 at 02:07:23PM +0200, Martin Wilck wrote: > On Tue, 2020-08-11 at 07:26 -0400, Michael S. Tsirkin wrote: > > On Wed, Jul 15, 2020 at 03:32:55PM +0200, mwilck at suse.com wrote: > > > drivers/char/hw_random/virtio-rng.c | 14 ++++++++++++++ > > > 1 file changed, 14 insertions(+) > > > > > > diff --git a/drivers/char/hw_random/virtio-rng.c > > > b/drivers/char/hw_random/virtio-rng.c > > > index 79a6e...

...n Schwidefsky <schwidefsky@de.ibm.com> Martin Sjoblom <martin.w.sjoblom@stericsson.com> Martin Storsjö <martin@martin.st> Martin Sustrik <sustrik@250bpm.com> Martin Svec<martin.svec@zoner.cz> Martin Teichmann <lkb.teichmann@gmail.com> Martin Wilck <mwilck@arcor.de> Martin Zhang <martinbj2008@gmail.com> Martin.Wilck@ts.fujitsu.com Martyn Welch <martyn.welch@ge.com> Maruthi Thotad <Maruthi.Thotad@ap.sony.com> Masahiro Nakai <nakai@atmark-techno.com> Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com Masami Hi...

...n Schwidefsky <schwidefsky@de.ibm.com> Martin Sjoblom <martin.w.sjoblom@stericsson.com> Martin Storsjö <martin@martin.st> Martin Sustrik <sustrik@250bpm.com> Martin Svec<martin.svec@zoner.cz> Martin Teichmann <lkb.teichmann@gmail.com> Martin Wilck <mwilck@arcor.de> Martin Zhang <martinbj2008@gmail.com> Martin.Wilck@ts.fujitsu.com Martyn Welch <martyn.welch@ge.com> Maruthi Thotad <Maruthi.Thotad@ap.sony.com> Masahiro Nakai <nakai@atmark-techno.com> Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com Masami Hi...

...n Schwidefsky <schwidefsky@de.ibm.com> Martin Sjoblom <martin.w.sjoblom@stericsson.com> Martin Storsjö <martin@martin.st> Martin Sustrik <sustrik@250bpm.com> Martin Svec<martin.svec@zoner.cz> Martin Teichmann <lkb.teichmann@gmail.com> Martin Wilck <mwilck@arcor.de> Martin Zhang <martinbj2008@gmail.com> Martin.Wilck@ts.fujitsu.com Martyn Welch <martyn.welch@ge.com> Maruthi Thotad <Maruthi.Thotad@ap.sony.com> Masahiro Nakai <nakai@atmark-techno.com> Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com Masami Hi...

...n Schwidefsky <schwidefsky@de.ibm.com> Martin Sjoblom <martin.w.sjoblom@stericsson.com> Martin Storsjö <martin@martin.st> Martin Sustrik <sustrik@250bpm.com> Martin Svec<martin.svec@zoner.cz> Martin Teichmann <lkb.teichmann@gmail.com> Martin Wilck <mwilck@arcor.de> Martin Zhang <martinbj2008@gmail.com> Martin.Wilck@ts.fujitsu.com Martyn Welch <martyn.welch@ge.com> Maruthi Thotad <Maruthi.Thotad@ap.sony.com> Masahiro Nakai <nakai@atmark-techno.com> Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com Masami Hi...

...n Schwidefsky <schwidefsky@de.ibm.com> Martin Sjoblom <martin.w.sjoblom@stericsson.com> Martin Storsjö <martin@martin.st> Martin Sustrik <sustrik@250bpm.com> Martin Svec<martin.svec@zoner.cz> Martin Teichmann <lkb.teichmann@gmail.com> Martin Wilck <mwilck@arcor.de> Martin Zhang <martinbj2008@gmail.com> Martin.Wilck@ts.fujitsu.com Martyn Welch <martyn.welch@ge.com> Maruthi Thotad <Maruthi.Thotad@ap.sony.com> Masahiro Nakai <nakai@atmark-techno.com> Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com Masami Hi...

...n Schwidefsky <schwidefsky@de.ibm.com> Martin Sjoblom <martin.w.sjoblom@stericsson.com> Martin Storsjö <martin@martin.st> Martin Sustrik <sustrik@250bpm.com> Martin Svec<martin.svec@zoner.cz> Martin Teichmann <lkb.teichmann@gmail.com> Martin Wilck <mwilck@arcor.de> Martin Zhang <martinbj2008@gmail.com> Martin.Wilck@ts.fujitsu.com Martyn Welch <martyn.welch@ge.com> Maruthi Thotad <Maruthi.Thotad@ap.sony.com> Masahiro Nakai <nakai@atmark-techno.com> Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com Masami Hi...