From: Sylvain Munaut <tnt@246tNt.com>
To: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: linuxppc-dev list <linuxppc-dev@ozlabs.org>,
Paul Mackerras <paulus@samba.org>,
Linux Kernel list <linux-kernel@vger.kernel.org>,
Mikael Pettersson <mikpe@csd.uu.se>
Subject: Re: BUG: 2.6.11-rc2 and -rc1 hang during boot on PowerMacs
Date: Wed, 26 Jan 2005 22:33:22 +0100 [thread overview]
Message-ID: <41F80CA2.2080603@246tNt.com> (raw)
In-Reply-To: <1106529935.5587.9.camel@gaston>
Benjamin Herrenschmidt wrote:
>On Sun, 2005-01-23 at 11:43 +1100, Benjamin Herrenschmidt wrote:
>
>
>
>>I know about this problem, I'm working on a proper fix. Thanks for your
>>report.
>>
>>
>
>Can you send me the PVR value for both of these CPUs
>(cat /proc/cpuinfo) ? I can't find right now why they would lock up
>unless the default idle loop is _not_ run properly, that is for some
>reason, NAP or DOZE mode end up not beeing enabled. Can you send me
>your .config as well ?
>
>
Note that when CONFIG_BDI_SWITCH is set, they both end up disabled
because nap & doze seems to perturb the BDI on some cores.
So there is a problem in that case ....
>Finally, try that patch and tell me if it makes a difference.
>
Yup
- Without it hangs (not really, it's still half running but serial
output is stuck
due to no interrupts)
- With it it works
Sylvain
WARNING: multiple messages have this Message-ID (diff)
From: Sylvain Munaut <tnt@246tNt.com>
To: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Mikael Pettersson <mikpe@csd.uu.se>,
linuxppc-dev list <linuxppc-dev@ozlabs.org>,
Paul Mackerras <paulus@samba.org>,
Linux Kernel list <linux-kernel@vger.kernel.org>
Subject: Re: BUG: 2.6.11-rc2 and -rc1 hang during boot on PowerMacs
Date: Wed, 26 Jan 2005 22:33:22 +0100 [thread overview]
Message-ID: <41F80CA2.2080603@246tNt.com> (raw)
In-Reply-To: <1106529935.5587.9.camel@gaston>
Benjamin Herrenschmidt wrote:
>On Sun, 2005-01-23 at 11:43 +1100, Benjamin Herrenschmidt wrote:
>
>
>
>>I know about this problem, I'm working on a proper fix. Thanks for your
>>report.
>>
>>
>
>Can you send me the PVR value for both of these CPUs
>(cat /proc/cpuinfo) ? I can't find right now why they would lock up
>unless the default idle loop is _not_ run properly, that is for some
>reason, NAP or DOZE mode end up not beeing enabled. Can you send me
>your .config as well ?
>
>
Note that when CONFIG_BDI_SWITCH is set, they both end up disabled
because nap & doze seems to perturb the BDI on some cores.
So there is a problem in that case ....
>Finally, try that patch and tell me if it makes a difference.
>
Yup
- Without it hangs (not really, it's still half running but serial
output is stuck
due to no interrupts)
- With it it works
Sylvain
next prev parent reply other threads:[~2005-01-26 21:33 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-01-22 17:23 BUG: 2.6.11-rc2 and -rc1 hang during boot on PowerMacs Mikael Pettersson
2005-01-22 17:23 ` Mikael Pettersson
2005-01-23 0:43 ` Benjamin Herrenschmidt
2005-01-23 0:43 ` Benjamin Herrenschmidt
2005-01-24 1:25 ` Benjamin Herrenschmidt
2005-01-24 17:42 ` Mikael Pettersson
2005-01-24 17:42 ` Mikael Pettersson
2005-01-25 3:25 ` Benjamin Herrenschmidt
2005-01-25 8:56 ` Mikael Pettersson
2005-01-25 8:56 ` Mikael Pettersson
2005-01-25 23:47 ` Benjamin Herrenschmidt
2005-01-26 10:02 ` Mikael Pettersson
2005-01-26 10:02 ` Mikael Pettersson
2005-01-26 13:51 ` Benjamin Herrenschmidt
2005-01-26 21:33 ` Sylvain Munaut [this message]
2005-01-26 21:33 ` Sylvain Munaut
2005-01-26 22:11 ` Benjamin Herrenschmidt
2005-01-26 22:11 ` Benjamin Herrenschmidt
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