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Message-Id: <200701162122.42581.arvidjaar@mail.ru>
Date: Tue, 16 Jan 2007 21:22:39 +0300
From: Andrey Borzenkov <arvidjaar@...l.ru>
To: linux-usb-devel@...ts.sourceforge.net
Cc: linux-kernel@...r.kernel.org
Subject: 2.6.20-rc5: BUG: lock held at task exit time! (pm_mutex){--..}, at: [<c013bfff>] enter_state+0x3f/0x170
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I have Toshiba Portege 4000 that almost always hangs dead resuming from STR.
This was better before 2.6.18, since then STR is unusable. Sometimes it
manages to resume; yesterday I got on console and in dmesg:
=====================================
[ BUG: lock held at task exit time! ]
- -------------------------------------
echo/28793 is exiting with locks still held!
1 lock held by echo/28793:
#0: (pm_mutex){--..}, at: [<c013bfff>] enter_state+0x3f/0x170
stack backtrace:
[<c0103fea>] show_trace_log_lvl+0x1a/0x30
[<c01045f2>] show_trace+0x12/0x20
[<c01046a6>] dump_stack+0x16/0x20
[<c0132377>] debug_check_no_locks_held+0x87/0x90
[<c011c8bb>] do_exit+0x4db/0x820
[<c011cc29>] do_group_exit+0x29/0x70
[<c011cc7f>] sys_exit_group+0xf/0x20
[<c010300e>] sysenter_past_esp+0x5f/0x99
=======================
I have a bug report about resume issue but I may have wrongly attributed it to
ACPI: http://bugzilla.kernel.org/show_bug.cgi?id=7499
echo mentioned here comes from "echo ... > /sys/power/state"
I have been suspecting ACPI because another permanent bug I have is lockup
using acpi_cpufreq and ondemand governor ... but it may be red herring
(although it is annoying).
{pts/0}% lspci
00:00.0 Host bridge: ALi Corporation M1644/M1644T Northbridge+Trident (rev 01)
00:01.0 PCI bridge: ALi Corporation PCI to AGP Controller
00:02.0 USB Controller: ALi Corporation USB 1.1 Controller (rev 03)
00:04.0 IDE interface: ALi Corporation M5229 IDE (rev c3)
00:06.0 Multimedia audio controller: ALi Corporation M5451 PCI AC-Link
Controller Audio Device (rev 01)
00:07.0 ISA bridge: ALi Corporation M1533/M1535 PCI to ISA Bridge [Aladdin
IV/V/V+]
00:08.0 Bridge: ALi Corporation M7101 Power Management Controller [PMU]
00:0a.0 Ethernet controller: Intel Corporation 82557/8/9 [Ethernet Pro 100]
(rev 08)
00:10.0 CardBus bridge: Texas Instruments PCI1410 PC card Cardbus Controller
(rev 01)
00:11.0 CardBus bridge: Toshiba America Info Systems ToPIC100 PCI to Cardbus
Bridge with ZV Support (rev 32)
00:11.1 CardBus bridge: Toshiba America Info Systems ToPIC100 PCI to Cardbus
Bridge with ZV Support (rev 32)
00:12.0 System peripheral: Toshiba America Info Systems SD TypA Controller
(rev 03)
01:00.0 VGA compatible controller: Trident Microsystems CyberBlade XPAi1 (rev
82)
{pts/0}% lsmod
Module Size Used by
snd_seq_dummy 3556 0
snd_seq_oss 32176 0
snd_seq_midi_event 7496 1 snd_seq_oss
snd_seq 50808 5 snd_seq_dummy,snd_seq_oss,snd_seq_midi_event
snd_seq_device 8180 3 snd_seq_dummy,snd_seq_oss,snd_seq
snd_pcm_oss 43168 0
snd_mixer_oss 16104 1 snd_pcm_oss
snd_ali5451 23644 0
snd_ac97_codec 97116 1 snd_ali5451
snd_pcm 79564 3 snd_pcm_oss,snd_ali5451,snd_ac97_codec
snd_timer 23164 2 snd_seq,snd_pcm
snd_page_alloc 9832 1 snd_pcm
snd 53956 9
snd_seq_oss,snd_seq,snd_seq_device,snd_pcm_oss,snd_mixer_oss,snd_ali5451,snd_ac97_codec,snd_pcm,snd_timer
soundcore 7776 1 snd
e100 35968 0
mii 5472 1 e100
nls_iso8859_1 3968 0
nls_cp866 5056 0
vfat 12672 0
fat 52436 1 vfat
sg 35716 0
usb_storage 78816 0
bluetooth 54916 0
autofs4 21524 0
af_packet 21872 4
ac97_bus 2496 1 snd_ac97_codec
smsc_ircc2 17828 0
irnet 24532 0
ppp_generic 29188 1 irnet
slhc 6624 1 ppp_generic
irtty_sir 6016 0
sir_dev 14476 1 irtty_sir
ircomm_tty 24784 0
ircomm 13828 1 ircomm_tty
irda 119528 5 smsc_ircc2,irnet,sir_dev,ircomm_tty,ircomm
crc_ccitt 1984 1 irda
binfmt_misc 12072 1
loop 16504 0
dm_mod 58452 0
video 15460 0
toshiba_acpi 6328 0
backlight 6176 1 toshiba_acpi
thermal 13704 0
sbs 14840 0
processor 23372 1 thermal
i2c_ec 4704 1 sbs
i2c_core 22608 1 i2c_ec
fan 4516 0
container 4160 0
button 7632 0
battery 9604 0
ac 4900 0
wlags49_h1_cs 181844 1
pcmcia 38496 1 wlags49_h1_cs
firmware_class 9728 1 pcmcia
yenta_socket 26764 5
tsdev 7648 0
mousedev 11752 1
evdev 9952 2
rsrc_nonstatic 11456 1 yenta_socket
pcmcia_core 40344 3 pcmcia,yenta_socket,rsrc_nonstatic
ali_agp 6976 1
agpgart 32068 1 ali_agp
nvram 8904 0
toshiba 4472 0
psmouse 38472 0
ohci_hcd 21356 0
usbcore 136560 3 usb_storage,ohci_hcd
sr_mod 17412 0
reiserfs 248108 1
sd_mod 20448 3
pata_ali 12012 2
libata 108348 1 pata_ali
scsi_mod 141032 5 sg,usb_storage,sr_mod,sd_mod,libata
atkbd 17656 0
libps2 7240 2 psmouse,atkbd
i8042 19160 0
serio 17240 5 psmouse,atkbd,i8042
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