linux-kernel - Re: Machine crashes right *after* ~successful resume

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Date:	Sun, 19 Oct 2014 11:48:53 +0100
From:	Wilmer van der Gaast <wilmer@...st.net>
To:	Yinghai Lu <yinghai@...nel.org>
CC:	Bjorn Helgaas <bhelgaas@...gle.com>,
	"Rafael J. Wysocki" <rjw@...ysocki.net>,
	Pavel Machek <pavel@....cz>,
	Rafael Wysocki <rafael.j.wysocki@...el.com>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: Machine crashes right *after* ~successful resume

Hello,

On 19-10-14 05:29, Yinghai Lu wrote:
>
> Please try to "debug ignore_loglevel no_console_suspend".
>
Same thing. :-(

[   72.572354] Restarting tasks ... done.
[   72.576554] PM: calling nb rcu_pm_notify+0x0/0x60
[   72.581277] PM: ... nb rcu_pm_notify+0x0/0x60 done
[   72.586115] PM: calling nb cpu_hotplug_pm_callback+0x0/0x50
[   72.591692] PM: ... nb cpu_hotplug_pm_callback+0x0/0x50 done
[   72.597345] PM: calling nb fw_pm_notify+0x0/0x150
[   72.602047] PM: ... nb fw_pm_notify+0x0/0x150 done
[   72.606839] PM: calling nb bsp_pm_callback+0x0/0x50
[   72.611711] PM: ... nb bsp_pm_callback+0x0/0x50 done
[   73.382175] r8169 0000:07:00.0 eth0: link up
[   78.857526] ata3: SATA link up 3.0 Gbps (SStatus 123 SControl 300)
[   79.025718] ata3.00: configured for UDMA/133
[   81.379533] ata4: softreset failed (device not ready)
[   82.623212] PM: Syncing filesystems ... done.
[   82.661564] PM: Preparing system for mem sleep
[   82.669405] Freezing user space processes ... (elapsed 0.001 seconds) 
done.
[   82.677729] Freezing remaining freezable tasks ... (elapsed 0.001 
seconds) done.
[   82.686338] PM: Entering mem sleep

And nothing related to resume. :-(

Is there any point of me retrying with the initcall_debug flag but 
without your patch?

Looking at your patch again, it seems pretty mad that this would cause 
such a big difference. Overnight I remembered how my machine has TSC 
issues at the time this bug shows, so I tried setting hpet as the 
clocksource. (hpet=force on the cmdline did not seem to have that effect 
so I used sysfs instead) No effect either.

I need to go now, can experiment a little more tonight.


Thanks,

Wilmer v/d Gaast.

-- 
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