Messages in this thread | | | Date | Fri, 23 Nov 2007 12:29:13 -0600 | From | Jordan Russell <> | Subject | Re: 2.6.23.1: Random hangs during boot with "tsc" clocksource |
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Chuck Ebbert wrote: > On 11/20/2007 06:20 PM, Jordan Russell wrote: >> Same problem with 2.6.23.8. >> >> Are there any specific (TSC related?) patches I should try reverting? >> >> Would it help if I captured the dmesg/SysRq output from one of the >> hanging boots? >> >> Any other information that might be useful in getting to the bottom of this? >> > > Did you try this one? You are seeing problems with preemption disabled, > but it's at least worth trying. > > > > From: Marin Mitov <mitov@issp.bas.bg> > To: linux-kernel@vger.kernel.org > Subject: [PATCH]new_TSC_based_delay_tsc() > Cc: Ingo Molnar <mingo@elte.hu> > Date: Tue, 20 Nov 2007 21:32:27 +0200
Thanks for the response.
I backported that patch to 2.6.23.8, but it didn't make a difference.
I also went ahead and tested 2.6.24-rc3 (with no changes to the existing config settings):
With the new CPU_IDLE option set to "n", it still hangs, but much less frequently than on 2.6.23.x. In 25 tries, there were 3 hangs, all after "input: AT Translated Set 2 keyboard as /class/input/input0".
With CPU_IDLE set to "y", it didn't hang at all in 25 tries. However, CPU_IDLE=y produces these additional messages, which may explain why:
Marking TSC unstable due to: TSC halts in idle. ... Time: acpi_pm clocksource has been installed.
Not sure what else to try at this point...
-- Jordan Russell - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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