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Date:	Sat, 27 Apr 2013 16:22:10 +0200
From:	"Rafael J. Wysocki" <rjw@...k.pl>
To:	Pavel Machek <pavel@....cz>
Cc:	kernel list <linux-kernel@...r.kernel.org>,
	castet.matthieu@...e.fr, shaohua.li@...el.com, lenb@...nel.org,
	linux-acpi@...r.kernel.org
Subject: Re: 3.9.0-rc8+: warning at pnpacpi/core.c:98 pnpacpi_set_resources

On Saturday, April 27, 2013 11:46:14 AM Pavel Machek wrote:
> Hi!
> 
> I got this during resume on thinkpad x60:
> 
> Machine resumed ok, but I guess something is wrong there...

Yeah, that's the WARN_ON() introduced by commit a6b5e88
(ACPI / PNP: Do not crash due to stale pointer use during system resume),
which means that there is something wrong, but the underlying problem is
still unsolved.

Thanks,
Rafael


> sdhci-pci 0000:15:00.2: Will use DMA mode even though HW doesn't fully
> claim to support it.
> sdhci-pci 0000:15:00.2: Will use DMA mode even though HW doesn't fully
> claim to support it.
> usb usb1: usb resume
> ehci-pci 0000:00:1d.7: resume root hub
> usb usb2: usb resume
> usb usb2: wakeup_rh
> hub 2-0:1.0: hub_reset_resume
> hub 2-0:1.0: trying to enable port power on non-switchable hub
> usb usb3: usb resume
> usb usb3: wakeup_rh
> hub 3-0:1.0: hub_reset_resume
> hub 3-0:1.0: trying to enable port power on non-switchable hub
> usb usb4: usb resume
> usb usb4: wakeup_rh
> hub 4-0:1.0: hub_reset_resume
> hub 4-0:1.0: trying to enable port power on non-switchable hub
> usb usb5: usb resume
> usb usb5: wakeup_rh
> hub 5-0:1.0: hub_reset_resume
> hub 5-0:1.0: trying to enable port power on non-switchable hub
> ------------[ cut here ]------------
> WARNING: at drivers/pnp/pnpacpi/core.c:98
> pnpacpi_set_resources+0x130/0x140()
> Hardware name: 17097HU
> Modules linked in:
> Pid: 27615, comm: pm-suspend Tainted: G        W    3.9.0-rc8+ #248
> Call Trace:
>  [<c022ca4d>] warn_slowpath_common+0x6d/0xa0
>  [<c04d1db0>] ? pnpacpi_set_resources+0x130/0x140
>  [<c04d1db0>] ? pnpacpi_set_resources+0x130/0x140
>  [<c022ca9d>] warn_slowpath_null+0x1d/0x20
>  [<c04d1db0>] pnpacpi_set_resources+0x130/0x140
>  [<c048ccbe>] ? acpi_bus_set_power+0x72/0x7e
>  [<c04cf196>] pnp_start_dev+0x36/0xb0
>  [<c0276fda>] ? mutex_remove_waiter+0x3a/0x100
>  [<c04cdc2f>] pnp_bus_resume+0x5f/0x70
>  [<c05859fd>] dpm_run_callback+0x3d/0x90
>  [<c04cdbd0>] ? pnp_device_shutdown+0x20/0x20
>  [<c0585ae7>] device_resume+0x97/0x160
>  [<c05861f1>] dpm_resume+0xe1/0x1f0
>  [<c0586f2b>] dpm_resume_end+0xb/0x20
>  [<c026600f>] suspend_devices_and_enter+0x13f/0x2f0
>  [<c02663c1>] pm_suspend+0x201/0x240
>  [<c02657bd>] state_store+0x8d/0x90
>  [<c0265730>] ? wakeup_count_show+0x40/0x40
>  [<c043ee80>] kobj_attr_store+0x20/0x30
>  [<c0326cc9>] sysfs_write_file+0x99/0xf0
>  [<c02d2a8a>] vfs_write+0x9a/0x140
>  [<c0326c30>] ? sysfs_open_file+0x1e0/0x1e0
>  [<c02d2bf9>] sys_write+0x49/0x80
>  [<c091c2b8>] sysenter_do_call+0x12/0x31
> ---[ end trace 752a759b0728fd3d ]---
> serial 00:09: activated
> parport_pc 00:0a: activated
> ata6: port disabled--ignoring
> hub 1-0:1.0: hub_resume
> ehci-pci 0000:00:1d.7: GetStatus port:6 status 001002 0  ACK POWER
> sig=se0 CSC
> hub 1-0:1.0: port 6: status 0100 change 0001
> uhci_hcd 0000:00:1d.3: port 2 portsc 009b,00
> hub 5-0:1.0: port 2: status 0101 change 0003
> hub 1-0:1.0: port 6 status 0000.0100 after resume, -19
> usb 1-6: can't resume, status -19
> hub 1-0:1.0: logical disconnect on port 6
> usb 5-2: finish reset-resume
> usb 5-2: reset full-speed USB device number 3 using uhci_hcd
> usb 5-2: ep0 maxpacket = 8
> usb usb2: suspend_rh (auto-stop)
> usb usb3: suspend_rh (auto-stop)
> usb usb4: suspend_rh (auto-stop)
> ata1: SATA link up 1.5 Gbps (SStatus 113 SControl 300)
> ata1.00: ACPI cmd ef/02:00:00:00:00:a0 (SET FEATURES) succeeded
> ata1.00: ACPI cmd f5/00:00:00:00:00:a0 (SECURITY FREEZE LOCK) filtered
> out
> ata1.00: ACPI cmd ef/10:03:00:00:00:a0 (SET FEATURES) filtered out
> ata1.00: ACPI cmd ef/02:00:00:00:00:a0 (SET FEATURES) succeeded
> ata1.00: ACPI cmd f5/00:00:00:00:00:a0 (SECURITY FREEZE LOCK) filtered
> out
> ata1.00: ACPI cmd ef/10:03:00:00:00:a0 (SET FEATURES) filtered out
> ata1.00: configured for UDMA/133
> sd 0:0:0:0: [sda] Starting disk
> thinkpad_acpi: ACPI backlight control delay disabled
> PM: resume of devices complete after 2924.037 msecs
> 
> 
> 
-- 
I speak only for myself.
Rafael J. Wysocki, Intel Open Source Technology Center.
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