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Date:	Sat, 29 Dec 2012 22:19:27 -0800
From:	Tim Hockin <thockin@...kin.org>
To:	"Rafael J. Wysocki" <rjw@...k.pl>
Cc:	linux-kernel@...r.kernel.org, Pavel Machek <pavel@....cz>,
	Linux PM list <linux-pm@...r.kernel.org>
Subject: Re: kernel panic on resume from S3 - stumped

Quick update: booting with 'noapic' on the commandline seems to make
it resume successfully.

The main dmesg diffs, other than the obvious "Skipping IOAPIC probe"
and IRG number diffs) are:

-nr_irqs_gsi: 40
+nr_irqs_gsi: 16

-NR_IRQS:16640 nr_irqs:776 16
+NR_IRQS:16640 nr_irqs:368 16

-system 00:0a: [mem 0xfec00000-0xfec00fff] could not be reserved
+system 00:0a: [mem 0xfec00000-0xfec00fff] has been reserved

and a new warning about irq 5: nobody cared (try booting with the
"irqpoll" option)

I'll see if I can sort out further differences, but I thought it was
worth sending this new info along, anyway.

It did not require 'noapic' on the Lucid (2.6.32?) kernel


On Sat, Dec 29, 2012 at 9:34 PM, Tim Hockin <thockin@...kin.org> wrote:
> Running a suspend with pm_trace set, I get:
>
> aer 0000:00:03.0:pcie02: hash matches
>
> I don't know what magic might be needed here, though.
>
> I guess next step is to try to build a non-distro kernel.
>
> On Sat, Dec 29, 2012 at 1:57 PM, Rafael J. Wysocki <rjw@...k.pl> wrote:
>> On Saturday, December 29, 2012 12:03:13 PM Tim Hockin wrote:
>>> 4 days ago I had Ubuntu Lucid running on this computer. Suspend and
>>> resume worked flawlessly every time.
>>>
>>> Then I upgraded to Ubuntu Precise.
>>
>> Well, do you use a distro kernel or a kernel.org kernel?
>>
>>> Suspend seems to work, but resume
>>> fails every time. The video never initializes.  By the flashing
>>> keyboard lights, I guess it's a kernel panic. It fails from the Live
>>> CD and from a fresh install.
>>>
>>> Here is my debug so far.
>>>
>>> Install all updates (3.2 kernel, nouveau driver)
>>> Reboot
>>> Try suspend = fails
>>>
>>> Install Ubuntu's linux-generic-lts-quantal (3.5 kernel, nouveau driver)
>>> Reboot
>>> Try suspend = fails
>>>
>>> Install nVidia's 304 driver
>>> Reboot
>>> Try suspend = fails
>>>
>>> From within X:
>>>   echo core > /sys/power/pm_test
>>>   echo mem > /sys/power/state
>>> The system acts like it is going to sleep, and then wakes up a few
>>> seconds later. dmesg shows:
>>>
>>> [ 1230.083404] ------------[ cut here ]------------
>>> [ 1230.083410] WARNING: at
>>> /build/buildd/linux-lts-quantal-3.5.0/kernel/power/suspend_test.c:53
>>> suspend_test_finish+0x86/0x90()
>>> [ 1230.083411] Hardware name: To Be Filled By O.E.M.
>>> [ 1230.083412] Component: resume devices, time: 14424
>>> [ 1230.083412] Modules linked in: snd_emu10k1_synth snd_emux_synth
>>> snd_seq_virmidi snd_seq_midi_emul bnep rfcomm parport_pc ppdev
>>> nvidia(PO) snd_emu10k1 snd_ac97_codec ac97_bus snd_pcm snd_page_alloc
>>> snd_util_mem snd_hwdep snd_seq_midi snd_rawmidi snd_seq_midi_event
>>> snd_seq snd_timer coretemp snd_seq_device kvm_intel kvm snd
>>> ghash_clmulni_intel soundcore aesni_intel btusb cryptd aes_x86_64
>>> bluetooth i7core_edac edac_core microcode mac_hid lpc_ich mxm_wmi
>>> shpchp serio_raw wmi hid_generic lp parport usbhid hid r8169
>>> pata_marvell
>>> [ 1230.083445] Pid: 3329, comm: bash Tainted: P O 3.5.0-21-generic
>>> #32~precise1-Ubuntu
>>> [ 1230.083446] Call Trace:
>>> [ 1230.083448] [<ffffffff81052c9f>] warn_slowpath_common+0x7f/0xc0
>>> [ 1230.083452] [<ffffffff81052d96>] warn_slowpath_fmt+0x46/0x50
>>> [ 1230.083455] [<ffffffff8109b836>] suspend_test_finish+0x86/0x90
>>> [ 1230.083457] [<ffffffff8109b53b>] suspend_devices_and_enter+0x10b/0x200
>>> [ 1230.083460] [<ffffffff8109b701>] enter_state+0xd1/0x100
>>> [ 1230.083463] [<ffffffff8109b74b>] pm_suspend+0x1b/0x60
>>> [ 1230.083465] [<ffffffff8109a7a5>] state_store+0x45/0x70
>>> [ 1230.083467] [<ffffffff81331d2f>] kobj_attr_store+0xf/0x30
>>> [ 1230.083471] [<ffffffff811f77ff>] sysfs_write_file+0xef/0x170
>>> [ 1230.083476] [<ffffffff811879d3>] vfs_write+0xb3/0x180
>>> [ 1230.083480] [<ffffffff81187cfa>] sys_write+0x4a/0x90
>>> [ 1230.083483] [<ffffffff816a6e69>] system_call_fastpath+0x16/0x1b
>>> [ 1230.083488] ---[ end trace 839cdd0078b3ce03 ]---
>>>
>>> Boot with init=/bin/bash
>>> unload all modules except USBHID
>>> echo core > /sys/power/pm_test
>>> echo mem > /sys/power/state
>>> system acts like it is going to sleep, and then wakes up a few seconds later
>>> echo none > /sys/power/pm_test
>>> echo mem > /sys/power/state
>>> system goes to sleep
>>> press power to resume = fails
>>>
>>> At this point I am stumped on how to debug. This is a "modern"
>>> computer with no serial ports. It worked under Lucid, so I know it is
>>> POSSIBLE.
>>>
>>> Mobo: ASRock X58 single-socket
>>> CPU: Westmere 6 core (12 hyperthreads) 3.2 GHz
>>> RAM: 12 GB ECC
>>> Disk: sda = Intel SSD, mounted on /
>>> Disk: sdb = Intel SSD, not mounted
>>> Disk: sdc = Seagate HDD, not mounted
>>> Disk: sdd = Seagate HDD, not mounted
>>> NIC = Onboard RTL8168e/8111e
>>> Sound = EMU1212 (emu10k1, not even configured yet)
>>> Video = nVidia GeForce 7600 GT
>>> KB = PS2 (also tried USB)
>>> Mouse = USB
>>>
>>> I have not updated to a more current kernel than 3.5, but I will if
>>> there's evidence that this is resolved.  Any other clever trick to
>>> try?
>>
>> There is no evidence and there won't be if you don't try a newer kernel.
>>
>> Thanks,
>> Rafael
>>
>>
>> --
>> I speak only for myself.
>> Rafael J. Wysocki, Intel Open Source Technology Center.
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