On Monday, 8 October 2007 17:01, Bernd Schubert wrote: > On Monday 08 October 2007 16:32:52 Rik van Riel wrote: > > On Mon, 08 Oct 2007 15:20:26 +0200 > > > > Bernd Schubert <[EMAIL PROTECTED]> wrote: > > > Bernd Schubert wrote: > > > > we have a system here were e.g. "sleep 1" will never finish. This > > > > is an issue of 2.6.23, on all older kernel versions it did work > > > > fine. > > > > > > > > Seems to hang in do_nanosleep() > > > > > > Update: Enabling hpet in the bios and setting clocksource=hpet as > > > command line parameter will fix it, but still its not nice that > > > something that worked without a problem in 2.6.22 and below suddenly > > > doesn't work in 2.6.23. > > > > Which timer source is in use when the system hangs? > > Well, not the systems hangs, only processes running nanosleep. Well, since > the > system is booted diskless, one of the very first commands is to > run "/etc/init.d/portmap start", which has a sleep call in its script and so > it will halt the boot process. > > The problematic timer source is acpi_pm. Its also interesting that setting > the > timer source > via /sys/devices/system/clocksource/clocksource0/current_clocksource won't > fix that problem. Only the boot option clocksource={other than acpi_pm} does > help.
I've created a bugzilla entry for this regression at http://bugzilla.kernel.org/show_bug.cgi?id=9134 Please add a summary of your observations to it. Thanks, Rafael - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/