Re: [3/5] 2.6.21-rc4: known regressions (v2)

Frédéric RISS
2007-03-26T06:45:23Z

Le dimanche 25 mars 2007 à 23:34 +0200, Frédéric Riss a écrit :
> However, as I pointed out in the initial report, the MacMini doesn't
> come out of suspend to ram because a commit in another merged patchset
> broke it. I tracked it down to:
>
> commit e9e2cdb412412326c4827fc78ba27f410d837e6e
> parent 79bf2bb335b85db25d27421c798595a2fa2a0e82
> Author: Thomas Gleixner <tglx@linutronix.de>
> Date: Fri Feb 16 01:28:04 2007 -0800
>
> [PATCH] clockevents: i386 drivers
>
> This patch has already been mentioned in regression reports, but AFAICS
> not related to suspend issues.
>
> To be totally clear about what works and what doesn't:
>
> 79bf2bb335b85db25d27421c798595a2fa2a0e82
> + cherry-pick f3ccb06f3b8e0cf42b579db21f3ca7f17fcc3f38 ==> works
>
> e9e2cdb412412326c4827fc78ba27f410d837e6e
> + cherry-pick f3ccb06f3b8e0cf42b579db21f3ca7f17fcc3f38 ==> broken
>
> To try to get more information, I commented the call to
> do_suspend_lowlevel in drivers/acpi/sleep/main.c and used
> CONFIG_DISABLE_CONSOLE_SUSPEND. Interestingly, the suspend/resume cycle
> completes correctly in this mode.

Additional data point: I just tried with -rc5 and the issue is still
present. The config I used for this test defines neither NO_HZ nor
HIGH_RES_TIMERS.

Fred.