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SubjectWARNING: at drivers/pci/pci-driver.c:368 pci_legacy_suspend+0x7b/0xb8()
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Hi Rafael,

My last suspend to RAM gave me the WARN below.

This is with 2.6.28-rc2 with the following patches on top:
* hp-wmi: fix regressions caused by missing if statement
* double disk spin off fix:
Hibernation: Introduce system_entering_hibernation
DMI: Introduce dmi_first_match to make the interface more flexible
SATA: Blacklisting of systems that spin off disks during ACPI power off
SATA AHCI: Blacklist system that spins off disks during ACPI power off
SATA Sil: Blacklist system that spins off disks during ACPI power off
SATA PIIX: Blacklist system that spins off disks during ACPI power off
* selected patches based on regression overview:
USB: Fix suspend-resume of PCI USB controllers
Revert "x86: signal: change type of paramter for sys_rt_sigreturn()"
USB: don't enable wakeup by default for PCI host controllers
work_on_cpu: dont try to get_online_cpus() in work_on_cpu.
PCI PM: Restore standard config registers of all devices early

I suspect the cause to be the last patch, as an earlier suspend which I
did without that patch did not result in the warning.

ricoh-mmc: Suspending.
ricoh-mmc: Controller is now re-enabled.
------------[ cut here ]------------
WARNING: at drivers/pci/pci-driver.c:368 pci_legacy_suspend+0x7b/0xb8()
Hardware name: HP Compaq 2510p Notebook PC
Modules linked in: tcp_diag inet_diag i915 drm i2c_algo_bit i2c_core ppdev
parport_pc lp parport ipv6 nfs lockd nfs_acl auth_rpcgss sunrpc ext2
coretemp hp_wmi acpi_cpufreq loop snd_hda_codec_analog snd_hda_intel
snd_hda_codec snd_pcm_oss snd_mixer_oss snd_pcm snd_seq_dummy snd_seq_oss
arc4 snd_seq_midi snd_rawmidi ecb snd_seq_midi_event snd_seq iwlagn
iwlcore snd_timer snd_seq_device rfkill snd lib80211 mac80211 serio_raw
soundcore pcmcia snd_page_alloc hp_accel cfg80211 psmouse pcspkr iTCO_wdt
yenta_socket rsrc_nonstatic pcmcia_core usblp intel_agp wmi video output
lis3lv02d container battery ac button joydev evdev ext3 jbd mbcache
sha256_generic aes_x86_64 aes_generic cbc usbhid hid dm_crypt dm_mirror
dm_region_hash dm_log dm_snapshot dm_mod sg sr_mod cdrom sd_mod piix
ide_pci_generic ata_piix ide_core pata_acpi ohci1394 sdhci_pci sdhci
ieee1394 mmc_core led_class ricoh_mmc ata_generic ehci_hcd libata
uhci_hcd e1000e scsi_mod thermal processor fan thermal_sys
Pid: 6325, comm: s2ram Not tainted 2.6.29-rc2 #7
Call Trace:
[<ffffffff802398cf>] warn_slowpath+0xd3/0x10f
[<ffffffff8035ae2b>] ? acpi_ns_get_node+0x92/0xa1
[<ffffffff80444232>] ? printk+0x67/0x6d
[<ffffffff8032c1cc>] ? pci_bus_write_config_byte+0x59/0x67
[<ffffffffa00bc2d5>] ? ricoh_mmc_enable+0x13c/0x145 [ricoh_mmc]
[<ffffffff80331894>] pci_legacy_suspend+0x7b/0xb8
[<ffffffff803319c4>] pci_pm_suspend+0x34/0x86
[<ffffffff8039929a>] pm_op+0x52/0xe5
[<ffffffff80399844>] device_suspend+0x32e/0x453
[<ffffffff8025f39e>] suspend_devices_and_enter+0x3e/0x12e
[<ffffffff8025f5f6>] enter_state+0x110/0x164
[<ffffffff8025f701>] state_store+0xb7/0xd7
[<ffffffff8032069f>] kobj_attr_store+0x17/0x19
[<ffffffff802e1de9>] sysfs_write_file+0xdf/0x114
[<ffffffff8029723b>] vfs_write+0xa7/0xe1
[<ffffffff80297339>] sys_write+0x47/0x6f
[<ffffffff8020c25b>] system_call_fastpath+0x16/0x1b
---[ end trace 7b44d6d0be5818c2 ]---


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