Public bug reported:
When exiting suspend to ram mode on hp6735s with bios revision F0D the
fan goes at maximum speed and doesn't slow down until the machine is
restarted. In the dmesg log this report appears:
[13958.610704] WARNING: at /build/buildd/linux-2.6.28/kernel/power/main.c:177
suspend_test_finish+0x80/0x90()
[13958.610706] Component: suspend devices
[13958.610707] Modules linked in: mt2060 dvb_usb_af9005_remote dvb_usb_af9005
dvb_usb dvb_core usbhid binfmt_misc ppdev lp parport bridge stp bnep
input_polldev ipt_REJECT ipt_LOG xt_limit xt_tcpudp xt_state ipt_addrtype
ip6table_filter ip6_tables nf_nat_irc nf_conntrack_irc nf_nat_ftp nf_nat
nf_conntrack_ipv4 nf_defrag_ipv4 nf_conntrack_ftp nf_conntrack iptable_filter
ip_tables x_tables adm1021 k8temp acpiphp snd_hda_intel snd_pcm_oss
snd_mixer_oss snd_pcm snd_seq_dummy snd_seq_oss snd_seq_midi snd_rawmidi
snd_seq_midi_event snd_seq snd_timer snd_seq_device fglrx(P) joydev
leds_hp_disk led_class snd soundcore i2c_piix4 agpgart psmouse serio_raw
snd_page_alloc ieee80211_crypt_tkip pcspkr video lis3lv02d wl(P)
ieee80211_crypt output shpchp reiserfs sky2 fbcon tileblit font bitblit
softcursor
[13958.610743] Pid: 11204, comm: pm-suspend Tainted: P
2.6.28-15-generic #52-Ubuntu
[13958.610745] Call Trace:
[13958.610750] [<c0139ba0>] warn_slowpath+0x60/0x80
[13958.610754] [<c015393a>] ? down_trylock+0x2a/0x40
[13958.610757] [<c013a1fd>] ? try_acquire_console_sem+0xd/0x30
[13958.610762] [<c02c7d40>] ? kobject_put+0x20/0x50
[13958.610768] [<c04fe166>] ? printk+0x18/0x1a
[13958.610770] [<c01651e0>] suspend_test_finish+0x80/0x90
[13958.610773] [<c0165255>] suspend_devices_and_enter+0x65/0x160
[13958.610776] [<c04fe166>] ? printk+0x18/0x1a
[13958.610779] [<c0165539>] enter_state+0xc9/0x100
[13958.610781] [<c01655ed>] state_store+0x7d/0xc0
[13958.610784] [<c0165570>] ? state_store+0x0/0xc0
[13958.610787] [<c02c7c04>] kobj_attr_store+0x24/0x30
[13958.610790] [<c020af42>] sysfs_write_file+0x92/0xf0
[13958.610795] [<c01bdde8>] vfs_write+0x98/0x110
[13958.610797] [<c020aeb0>] ? sysfs_write_file+0x0/0xf0
[13958.610800] [<c01bdf1d>] sys_write+0x3d/0x70
[13958.610803] [<c0103f6b>] sysenter_do_call+0x12/0x2f
Moreover, if the system is suspended a second time, the fan stops at all
and doesn't restart again, forcing to reboot the machine.
Steps to reproduce: 1) select supend from the gnome shutdonw menu
2) reactivate the machine by pressing the power button
(do it twice for the second problem to show)
** Affects: ubuntu
Importance: Undecided
Status: New
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Kernel error when suspending to ram on hp6735s
https://bugs.launchpad.net/bugs/454001
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