linux-kernel - [2.6.31] NFS + suspend to ram hang...

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Date:	Wed, 23 Sep 2009 23:45:54 +0100
From:	Daniel J Blueman <daniel.blueman@...il.com>
To:	Linux Kernel <linux-kernel@...r.kernel.org>,
	linux-acpi@...r.kernel.org
Subject: [2.6.31] NFS + suspend to ram hang...

Without the NFS4 homedir mount, suspend to ram works perfectly. With
NFS4 homedir, suspend is started, but doesn't complete. Invoking
kernel crashdump, all messages and backtrace looks entirely expected
[1].

Anyone else find the same? Expected to work or not? What information
would help with this?

Thanks,
  Daniel

--- [1]

[   49.865732] CPU1 attaching NULL sched-domain.
[   49.884215] CPU0 attaching sched-domain:
[   49.884222]  domain 0: span 0-1 level MC
[   49.884228]   groups: 0 1
[   49.884240] CPU1 attaching sched-domain:
[   49.884245]  domain 0: span 0-1 level MC
[   49.884250]   groups: 1 0
[   57.286986] SysRq : Trigger a crash
[   57.287009] BUG: unable to handle kernel NULL pointer dereference at (null)
[   57.287014] IP: [<ffffffff81305b21>] sysrq_handle_crash+0x11/0x20
[   57.287024] PGD 0
[   57.287028] Oops: 0002 [#1] SMP
[   57.287031] last sysfs file:
/sys/devices/pci0000:00/0000:00:02.0/graphics/fb0/state
[   57.287035] CPU 1
[   57.287038] Modules linked in: binfmt_misc ppdev kvm_intel kvm
microcode nfsd exportfs nfs lockd nfs_acl auth_rpcgss sunrpc joydev
dm_crypt snd_hda_codec_conexant arc4 snd_hda_intel ecb pcmcia
snd_hda_codec snd_pcm_oss snd_mixer_oss snd_pcm snd_seq_dummy
snd_seq_oss snd_seq_midi iptable_filter iwlagn snd_rawmidi iwlcore
psmouse snd_seq_midi_event serio_raw ip_tables mac80211 x_tables
snd_seq snd_timer snd_seq_device ricoh_mmc thinkpad_acpi sdhci_pci
nvram sdhci lp yenta_socket led_class rsrc_nonstatic pcmcia_core
cfg80211 parport snd heci(C) soundcore snd_page_alloc e1000e fbcon
tileblit font bitblit softcursor i915 drm i2c_algo_bit video output
intel_agp
[   57.287100] Pid: 0, comm: swapper Tainted: G         C
2.6.31-10-generic #35-Ubuntu 276521G
[   57.287103] RIP: 0010:[<ffffffff81305b21>]  [<ffffffff81305b21>]
sysrq_handle_crash+0x11/0x20
[   57.287109] RSP: 0018:ffff880028043c18  EFLAGS: 00010096
[   57.287111] RAX: 0000000000000010 RBX: 0000000000000063 RCX: 000000000000001e
[   57.287114] RDX: 0000000000000000 RSI: ffff880131ca5800 RDI: 0000000000000063
[   57.287118] RBP: ffff880028043c18 R08: 0000000000000073 R09: 000000000000edff
[   57.287121] R10: 0000000000000005 R11: 0000000000000000 R12: ffff880131ca5800
[   57.287123] R13: ffffffff817c99c0 R14: 0000000000000082 R15: 0000000000000004
[   57.287127] FS:  0000000000000000(0000) GS:ffff880028040000(0000)
knlGS:0000000000000000
[   57.287130] CS:  0010 DS: 0018 ES: 0018 CR0: 000000008005003b
[   57.287138] CR2: 0000000000000000 CR3: 0000000001001000 CR4: 00000000000026a0
[   57.287140] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   57.287142] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
[   57.287144] Process swapper (pid: 0, threadinfo ffff880137ac6000,
task ffff880137a9c410)
[   57.287146] Stack:
[   57.287147]  ffff880028043c68 ffffffff81305daa ffff880028043c38
2e00880100000001
[   57.287150] <0> ffff88012193ca00 000000000000002e 0000000000000001
ffff88012193ca00
[   57.287153] <0> ffff880131ca5800 0000000000000001 ffff880028043c78
ffffffff81305e86
[   57.287157] Call Trace:
[   57.287158]  <IRQ>
[   57.287161]  [<ffffffff81305daa>] __handle_sysrq+0x12a/0x190
[   57.287164]  [<ffffffff81305e86>] handle_sysrq+0x26/0x30
[   57.287167]  [<ffffffff812fd20d>] kbd_keycode+0x39d/0x5c0
[   57.287170]  [<ffffffff812eb093>] ? mix_pool_bytes_extract+0x163/0x180
[   57.287173]  [<ffffffff812fd48b>] kbd_event+0x5b/0x110
[   57.287177]  [<ffffffff813bed7e>] input_pass_event+0x9e/0xa0
[   57.287179]  [<ffffffff813c0653>] input_handle_event+0x93/0x470
[   57.287182]  [<ffffffff813c0f74>] input_event+0x84/0xa0
[   57.287184]  [<ffffffff813c64ff>] atkbd_interrupt+0x60f/0x6c0
[   57.287188]  [<ffffffff81050404>] ? enqueue_entity+0xb4/0x140
[   57.287191]  [<ffffffff813bc5ad>] serio_interrupt+0x4d/0xa0
[   57.287193]  [<ffffffff813bd31e>] i8042_interrupt+0xce/0x290
[   57.287197]  [<ffffffff810aea48>] handle_IRQ_event+0x58/0x160
[   57.287200]  [<ffffffff810b0a7f>] handle_edge_irq+0xcf/0x170
[   57.287203]  [<ffffffff8101499d>] handle_irq+0x1d/0x30
[   57.287205]  [<ffffffff81014077>] do_IRQ+0x67/0xe0
[   57.287209]  [<ffffffff810129d3>] ret_from_intr+0x0/0x11
[   57.287210]  <EOI>
[   57.287214]  [<ffffffff812d2e19>] ? acpi_idle_enter_bm+0x28b/0x2bf
[   57.287217]  [<ffffffff812d2e12>] ? acpi_idle_enter_bm+0x284/0x2bf
[   57.287221]  [<ffffffff813f8fcb>] ? cpuidle_idle_call+0x9b/0xf0
[   57.287223]  [<ffffffff81010e12>] ? cpu_idle+0xb2/0x100
[   57.287227]  [<ffffffff8151daa9>] ? start_secondary+0xa9/0xab
[   57.287228] Code: 9a 81 19 d2 83 e0 cf f7 d2 83 e2 03 c1 e2 04 09
d0 88 81 03 5b 9a 81 c9 c3 90 55 c7 05 01 dd 5f 00 01 00 00 00 48 89
e5 0f ae f8 <c6> 04 25 00 00 00 00 01 c9 c3 0f 1f 44 00 00 8d 47 d0 55
83 f8
[   57.287255] RIP  [<ffffffff81305b21>] sysrq_handle_crash+0x11/0x20
[   57.287259]  RSP <ffff880028043c18>
[   57.287260] CR2: 0000000000000000
-- 
Daniel J Blueman
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