Re: [BUG] 2.6.21: Kernel won't boot with either/both of CONFIG_NO_HZ, CONFIG_HIGH_RES_TIMERS

Thomas Gleixner wrote:

On Tue, 2007-05-01 at 09:34 -0400, Mark Lord wrote:

now at 3232363876949 nsecs

...

Oh, in case it matters any:
that /proc/timer_list is from the system with CFS-V7 also patched in.


It should not. What happens when you disable HPET ?


Booting with clocksource=tsc still hangs in what appears
to be the exact same place.

Screenshots for that are available here:   http://rtr.ca/hrtimers/

Of possible interest is that the bottom of the 25line screen capture
differs somewhat from the 50line capture.. see for yourself.
This is 100% consistent from boot to boot.

Using CONFIG_DETECT_SOFTLOCKUP=y eliminates the problem,
so that's really got to be a huge clue, somehow ?

Meanwhile, I'm going to try a libata patch I just saw posted by Tejun.
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Follow-Ups:
- Re: [BUG] 2.6.21: Kernel won't boot with either/both of CONFIG_NO_HZ, CONFIG_HIGH_RES_TIMERS
  - From: Thomas Gleixner <[email protected]>
- Re: [BUG] 2.6.21: Kernel won't boot with either/both of CONFIG_NO_HZ, CONFIG_HIGH_RES_TIMERS
  - From: Thomas Gleixner <[email protected]>
- Re: [BUG] 2.6.21: Kernel won't boot with either/both of CONFIG_NO_HZ, CONFIG_HIGH_RES_TIMERS
  - From: "Michal Piotrowski" <[email protected]>

References:
- [BUG] 2.6.21: Kernel won't boot with either/both of CONFIG_NO_HZ, CONFIG_HIGH_RES_TIMERS
  - From: Mark Lord <[email protected]>
- Re: [BUG] 2.6.21: Kernel won't boot with either/both of CONFIG_NO_HZ, CONFIG_HIGH_RES_TIMERS
  - From: Mark Lord <[email protected]>
- Re: [BUG] 2.6.21: Kernel won't boot with either/both of CONFIG_NO_HZ, CONFIG_HIGH_RES_TIMERS
  - From: Mark Lord <[email protected]>
- Re: [BUG] 2.6.21: Kernel won't boot with either/both of CONFIG_NO_HZ, CONFIG_HIGH_RES_TIMERS
  - From: Mark Lord <[email protected]>
- Re: [BUG] 2.6.21: Kernel won't boot with either/both of CONFIG_NO_HZ, CONFIG_HIGH_RES_TIMERS
  - From: Daniel Walker <[email protected]>
- Re: [BUG] 2.6.21: Kernel won't boot with either/both of CONFIG_NO_HZ, CONFIG_HIGH_RES_TIMERS
  - From: Mark Lord <[email protected]>
- Re: [BUG] 2.6.21: Kernel won't boot with either/both of CONFIG_NO_HZ, CONFIG_HIGH_RES_TIMERS
  - From: Thomas Gleixner <[email protected]>
- Re: [BUG] 2.6.21: Kernel won't boot with either/both of CONFIG_NO_HZ, CONFIG_HIGH_RES_TIMERS
  - From: Mark Lord <[email protected]>
- Re: [BUG] 2.6.21: Kernel won't boot with either/both of CONFIG_NO_HZ, CONFIG_HIGH_RES_TIMERS
  - From: Mark Lord <[email protected]>
- Re: [BUG] 2.6.21: Kernel won't boot with either/both of CONFIG_NO_HZ, CONFIG_HIGH_RES_TIMERS
  - From: Thomas Gleixner <[email protected]>

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