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

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Message-ID: <5446D2D8.2090203@gaast.net>
Date:	Tue, 21 Oct 2014 22:40:40 +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,

Sorry for the delay, finally poked at this again. It looks like the 
no_console_suspend flag was causing troubles, which I didn't really need 
anyway with logging going to my serial port.

This is what I get now on the failing resume:

[  112.879390] PM: resume of devices complete after 2239.905 msecs
[  112.880068] r8169 0000:07:00.0 eth0: link up
[  112.880078] Switched to clocksource hpet
[  116.069248] PM: Finishing wakeup.
[  116.072574] Restarting tasks ... done.
[  116.076664] PM: calling nb rcu_pm_notify+0x0/0x60
[  116.081439] PM: ... nb rcu_pm_notify+0x0/0x60 done
[  116.086267] PM: calling nb cpu_hotplug_pm_callback+0x0/0x50
[  116.088526] systemd[1]: Got notification message for unit 
systemd-journald.service
[  116.099442] PM: ... nb cpu_hotplug_pm_callback+0x0/0x50 done
[  116.105099] PM: calling nb fw_pm_notify+0x0/0x150
[  116.109812] PM: ... nb fw_pm_notify+0x0/0x150 done
[  116.114623] PM: calling nb bsp_pm_callback+0x0/0x50
[  116.119504] PM: ... nb bsp_pm_callback+0x0/0x50 done

And then nothing, and it's hung. Looks the same to me (apart from the 
tsc issues + hpet switch) as a successful resume:

[   95.499513] PM: resume of devices complete after 1240.115 msecs
[   96.368940] r8169 0000:07:00.0 eth0: link up
[   98.676455] PM: Finishing wakeup.
[   98.679765] Restarting tasks ... done.
[   98.683821] PM: calling nb rcu_pm_notify+0x0/0x60
[   98.688524] PM: ... nb rcu_pm_notify+0x0/0x60 done
[   98.692044] systemd[1]: Got notification message for unit 
systemd-journald.service
[   98.700897] PM: calling nb cpu_hotplug_pm_callback+0x0/0x50
[   98.706470] PM: ... nb cpu_hotplug_pm_callback+0x0/0x50 done
[   98.712132] PM: calling nb fw_pm_notify+0x0/0x150
[   98.716848] PM: ... nb fw_pm_notify+0x0/0x150 done
[   98.721644] PM: calling nb bsp_pm_callback+0x0/0x50
[   98.726536] PM: ... nb bsp_pm_callback+0x0/0x50 done

Full logs in http://gaast.net/~wilmer/.lkml/bad3.17-patched-megadebug.txt


Wilmer v/d Gaast.

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