Re: [linux-pm] Suspend regression, hang after matroxfb

["Rafael J. Wysocki" <rjw-KKrjLPT3xs0@public.gmane.org>]

On Thursday 29 January 2009, Eric Sesterhenn wrote:
> hi,
> 
> on this box standby worked with 2.6.28, but is broken with 2.6.29-rc3.
> 
> Dmesg of startup
> http://www.cccmz.de/~snakebyte/200.log
> .config
> http://www.cccmz.de/~snakebyte/config_200
> 
> When testing the devices 
> 
> root@computer-desktop:/sys/power# echo devices > pm_test 

What happens if you replace 'devices' with 'core' ?

If the same, what happens without the matroxfb driver?

> root@computer-desktop:/sys/power# echo standby > state
> 
> I get this message: 
> 
> [  174.177445] PM: Preparing system for standby sleep
> [  174.182706] Freezing user space processes ... (elapsed 0.00 seconds) done.
> [  174.186096] Freezing remaining freezable tasks ... (elapsed 0.00 seconds) done.
> [  174.186903] PM: Entering standby sleep
> [  174.620476] sd 2:0:0:0: [sda] Synchronizing SCSI cache
> [  174.621453] sd 2:0:0:0: [sda] Stopping disk
> [  174.743784] serial 00:08: disabled
> [  174.744389] matroxfb 0000:01:00.0: PCI INT A disabled
> 
> and the system does not seem to properly suspend / neither wakeup
> 
> root@computer-desktop:~# lspci
> 00:00.0 Host bridge: Intel Corporation 440BX/ZX/DX - 82443BX/ZX/DX Host bridge (rev 03)
> 00:01.0 PCI bridge: Intel Corporation 440BX/ZX/DX - 82443BX/ZX/DX AGP bridge (rev 03)
> 00:07.0 ISA bridge: Intel Corporation 82371AB/EB/MB PIIX4 ISA (rev 02)
> 00:07.1 IDE interface: Intel Corporation 82371AB/EB/MB PIIX4 IDE (rev 01)
> 00:07.2 USB Controller: Intel Corporation 82371AB/EB/MB PIIX4 USB (rev 01)
> 00:07.3 Bridge: Intel Corporation 82371AB/EB/MB PIIX4 ACPI (rev 02)
> 00:0a.0 Ethernet controller: Intel Corporation 82556 EtherExpress PRO/100 Smart (rev 03)
> 00:0c.0 SCSI storage controller: Adaptec AIC-7861 (rev 03)
> 00:0e.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL-8139/8139C/8139C+ (rev 10)
> 00:12.0 Multimedia audio controller: Rockwell International Device 4310
> 00:12.1 Communication controller: Rockwell International Riptide HSF 56k PCI Modem
> 00:12.2 Input device controller: Rockwell International Device 4312
> 01:00.0 VGA compatible controller: Matrox Graphics, Inc. MGA G200 AGP (rev 03)
> 
> root@computer-desktop:~# lsmod
> Module                  Size  Used by
> nfsd                  217580  13 
> exportfs                4608  1 nfsd
> nfs                   253896  1 
> lockd                  66984  2 nfsd,nfs
> nfs_acl                 3328  2 nfsd,nfs
> auth_rpcgss            36160  2 nfsd,nfs
> sunrpc                185716  16 nfsd,nfs,lockd,nfs_acl,auth_rpcgss
> ipv6                  252276  10 
> fuse                   54188  1 
> unix                   25404  96
> 
> root@computer-desktop:/usr/src/linux# cat /proc/cpuinfo 
> processor	: 0
> vendor_id	: GenuineIntel
> cpu family	: 6
> model		: 8
> model name	: Pentium III (Coppermine)
> stepping	: 3
> cpu MHz		: 697.840
> cache size	: 256 KB
> fdiv_bug	: no
> hlt_bug		: no
> f00f_bug	: no
> coma_bug	: no
> fpu		: yes
> fpu_exception	: yes
> cpuid level	: 2
> wp		: yes
> flags		: fpu vme de pse tsc msr pae mce cx8 sep mtrr pge mca cmov pat pse36 mmx fxsr sse
> bogomips	: 1395.68
> clflush size	: 32
> power management:
> 
> 
> After PM_VERBOSE enabled the log changes to this:
> 
> [ 1968.407273] PM: Syncing filesystems ... done.
> [ 1968.424490] PM: Preparing system for standby sleep
> [ 1968.431142] Freezing user space processes ... (elapsed 0.00 seconds) done.
> [ 1968.434866] Freezing remaining freezable tasks ... (elapsed 0.00 seconds) done.
> [ 1968.435887] PM: Entering standby sleep
> [ 1968.436580] agpgart-intel 0000:00:00.0: preparing suspend
> [ 1968.436683] pci 0000:00:01.0: preparing suspend
> [ 1968.436788] pci 0000:00:07.0: preparing suspend
> [ 1968.436877] ata_piix 0000:00:07.1: preparing suspend
> [ 1968.436998] uhci_hcd 0000:00:07.2: preparing suspend
> [ 1968.437091] piix4_smbus 0000:00:07.3: preparing suspend
> [ 1968.437213] pci 0000:00:0a.0: preparing suspend
> [ 1968.437301] aic7xxx 0000:00:0c.0: preparing suspend
> [ 1968.437420] 8139too 0000:00:0e.0: preparing suspend
> [ 1968.437511] RIPTIDE 0000:00:12.0: preparing suspend
> [ 1968.437617] pci 0000:00:12.1: preparing suspend
> [ 1968.437705] pci 0000:00:12.2: preparing suspend
> [ 1968.437807] matroxfb 0000:01:00.0: preparing suspend
> [ 1968.438056] platform pcspkr: preparing suspend
> [ 1968.438166] platform microcode: preparing suspend
> [ 1968.438321] vga16fb vga16fb.0: preparing suspend
> [ 1968.442065] serial8250 serial8250: preparing suspend
> [ 1968.442857] usb usb1: preparing type suspend, may wakeup
> [ 1968.442995] i8042 i8042: preparing suspend
> [ 1968.443144] rtc-test rtc-test.0: preparing suspend
> [ 1968.443256] rtc-test rtc-test.1: preparing suspend
> [ 1968.443785] ac97 0-0:unknown codec: legacy suspend
> [ 1968.443960] fschmd 3-0073: legacy suspend
> [ 1968.444151] rtc rtc2: legacy class suspend
> [ 1968.444252] rtc-test rtc-test.1: suspend
> [ 1968.444351] rtc rtc1: legacy class suspend
> [ 1968.444501] rtc-test rtc-test.0: suspend
> [ 1968.444638] rtc rtc0: legacy class suspend
> [ 1968.444883] atkbd serio0: legacy suspend
> [ 1968.872096] i8042 i8042: suspend
> [ 1968.872384] usb usb1: type suspend, may wakeup
> [ 1968.872581] sd 2:0:0:0: legacy suspend
> [ 1968.872881] sd 2:0:0:0: [sda] Synchronizing SCSI cache
> [ 1968.873883] sd 2:0:0:0: [sda] Stopping disk
> [ 1968.992131] scsi 1:0:0:0: legacy suspend
> [ 1968.992852] serial8250 serial8250: suspend
> [ 1968.992997] drm card0: legacy class suspend
> [ 1968.996728] vga16fb vga16fb.0: suspend
> [ 1968.996920] platform microcode: suspend
> [ 1968.997059] platform pcspkr: suspend
> [ 1968.997256] serial 00:08: legacy suspend
> [ 1968.998043] serial 00:08: disabled
> [ 1968.998213] pnp 00:07: legacy suspend
> [ 1968.998343] i8042 kbd 00:06: legacy suspend
> [ 1968.998498] pnp 00:05: legacy suspend
> [ 1968.998626] pnp 00:04: legacy suspend
> [ 1968.998754] rtc_cmos 00:03: legacy suspend, may wakeup
> [ 1968.998980] pnp 00:02: legacy suspend
> [ 1968.999109] system 00:01: legacy suspend
> [ 1968.999262] pnp 00:00: legacy suspend
> [ 1968.999410] matroxfb 0000:01:00.0: suspend
> [ 1968.999737] matroxfb 0000:01:00.0: PCI INT A disabled
> 
> I am not sure if a bisection makes sense
> with all those suspend bugs.

No, it doesn't. :-(

Thanks,
Rafael