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From: Sasha Sirotkin on 15 May 2010 13:40
I'm having some problem which seems to be related to suspend/resume.

From time to time, usually after resume, I start getting some weird
networking problems. I'm sorry, there is no better way to explain
this. Problem disappears after reboot. Here is what I have in dmesg


May 15 11:39:34 borjch kernel: [26150.566227] ------------[ cut here
]------------
May 15 11:39:34 borjch kernel: [26150.566234] WARNING: at
/build/buildd/linux-2.6.31/kernel/power/suspend_test.c:53
suspend_test_finish+0x84/0x90()
May 15 11:39:34 borjch kernel: [26150.566236] Hardware name: System Product Name
May 15 11:39:34 borjch kernel: [26150.566238] Component: resume
devices, time: 10500
May 15 11:39:34 borjch kernel: [26150.566239] Modules linked in:
nls_iso8859_1 nls_cp437 vfat fat binfmt_misc ppdev lp parport
vboxnetadp vboxnetflt vboxdrv nfsd exportfs nfs lockd nfs_acl
auth_rpcgss sunrpc dm_crypt xt_tcpudp xt_mac snd_hda_codec_realtek
nf_conntrack_ipv4 nf_defrag_ipv4 xt_state nf_conntrack snd_hda_intel
snd_hda_codec snd_hwdep snd_pcm_oss snd_mixer_oss iptable_filter
snd_pcm ip_tables x_tables snd_seq_dummy snd_seq_oss snd_seq_midi
snd_rawmidi joydev ftdi_sio usbserial snd_seq_midi_event snd_seq
psmouse serio_raw sc92031 snd_timer snd_seq_device k8temp i2c_piix4
snd soundcore snd_page_alloc shpchp asus_atk0110 dm_raid45 xor
usb_storage usbhid r8169 mii ati_agp radeon ttm drm agpgart
i2c_algo_bit ramzswap xvmalloc lzo_decompress lzo_compress
May 15 11:39:34 borjch kernel: [26150.566278] Pid: 16727, comm:
pm-suspend Not tainted 2.6.31-16-generic #53-Ubuntu
May 15 11:39:34 borjch kernel: [26150.566280] Call Trace:
May 15 11:39:34 borjch kernel: [26150.566286] [<c014518d>]
warn_slowpath_common+0x6d/0xa0
May 15 11:39:34 borjch kernel: [26150.566289] [<c0174e74>] ?
suspend_test_finish+0x84/0x90
May 15 11:39:34 borjch kernel: [26150.566292] [<c0174e74>] ?
suspend_test_finish+0x84/0x90
May 15 11:39:34 borjch kernel: [26150.566295] [<c0145206>]
warn_slowpath_fmt+0x26/0x30
May 15 11:39:34 borjch kernel: [26150.566298] [<c0174e74>]
suspend_test_finish+0x84/0x90
May 15 11:39:34 borjch kernel: [26150.566301] [<c0174c5f>]
suspend_devices_and_enter+0x9f/0xd0
May 15 11:39:34 borjch kernel: [26150.566305] [<c056ea7c>] ? printk+0x18/0x1c
May 15 11:39:34 borjch kernel: [26150.566307] [<c0174d49>]
enter_state+0xb9/0xf0
May 15 11:39:34 borjch kernel: [26150.566310] [<c017443d>]
state_store+0x6d/0xb0
May 15 11:39:34 borjch kernel: [26150.566313] [<c01743d0>] ?
state_store+0x0/0xb0
May 15 11:39:34 borjch kernel: [26150.566317] [<c0311f80>]
kobj_attr_store+0x20/0x30
May 15 11:39:34 borjch kernel: [26150.566321] [<c0239780>]
sysfs_write_file+0x90/0x100
May 15 11:39:34 borjch kernel: [26150.566325] [<c01e791a>] vfs_write+0x9a/0x190
May 15 11:39:34 borjch kernel: [26150.566328] [<c02396f0>] ?
sysfs_write_file+0x0/0x100
May 15 11:39:34 borjch kernel: [26150.566331] [<c05733ab>] ?
do_page_fault+0x19b/0x380
May 15 11:39:34 borjch kernel: [26150.566334] [<c01e83dd>] sys_write+0x3d/0x70
May 15 11:39:34 borjch kernel: [26150.566337] [<c010336c>] syscall_call+0x7/0xb
May 15 11:39:34 borjch kernel: [26150.566339] ---[ end trace
abb3daa247765c8c ]---
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Next: [PATCH 8/8] libata: implement on-demand HPA unlocking