Re: WARNING: CPU: 0 PID: 2623 at drivers/pnp/pnpacpi/core.c:96 pnpacpi_set_resource

[Rafael J. Wysocki]

On Thursday, May 29, 2014 10:41:43 AM Zdenek Kabelac wrote:
> Hi
> 
> 
> I've noticed this message in my dmesg:
> (Possibly related to this commit?:
> a8d22396302b7e4e5f0a594c1c1594388c29edaf)

Well, does reverting that commit make the warning go away?

Rafael


> (My vanilla git commit number for my kernel:
> cd79bde29f00a346eec3fe17c1c5073c37ed95e7)
> 
> Zdenek
> 
> 
> [ 2174.058615] ata5: port disabled--ignoring
> [ 2174.059460] sd 0:0:0:0: [sda] Starting disk
> [ 2174.076342] ------------[ cut here ]------------
> [ 2174.076350] WARNING: CPU: 0 PID: 2623 at drivers/pnp/pnpacpi/core.c:96 
> pnpacpi_set_resources+0x14f/0x160()
> [ 2174.076412] Modules linked in: dm_raid raid456 async_raid6_recov 
> async_memcpy async_pq async_xor async_tx raid1 raid10 dm_mod md_mod xor 
> raid6_pq i915 i2c_algo_bit drm_kms_helper drm xt_CHECKSUM iptable_mangle 
> ipt_MASQUERADE iptable_nat nf_nat_ipv4 nf_nat nf_conntrack_ipv4 nf_defrag_ipv4 
> xt_conntrack nf_conntrack ipt_REJECT xt_tcpudp iptable_filter ip_tables 
> x_tables tun bridge stp llc ipv6 hid_generic usbhid hid snd_hda_codec_analog 
> snd_hda_codec_generic iTCO_wdt iTCO_vendor_support coretemp kvm_intel kvm 
> microcode psmouse serio_raw i2c_i801 i2c_core arc4 lpc_ich mfd_core r852 
> iwl3945 sm_common nand r592 nand_ecc nand_ids iwlegacy mtd memstick mac80211 
> sdhci_pci pcmcia sdhci snd_hda_intel mmc_core snd_hda_controller snd_hda_codec 
> snd_hwdep snd_seq snd_seq_device snd_pcm cfg80211 e1000e ptp snd_timer
> [ 2174.076433]  pps_core wmi thinkpad_acpi nvram snd soundcore evdev nfsd 
> auth_rpcgss oid_registry nfs_acl lockd binfmt_misc loop sunrpc uhci_hcd sr_mod 
> cdrom yenta_socket ehci_pci ehci_hcd usbcore usb_common video backlight autofs4
> [ 2174.076436] CPU: 0 PID: 2623 Comm: systemd-sleep Not tainted 
> 3.15.0-rc7-00044-g887210a #209
> [ 2174.076437] Hardware name: LENOVO 6464CTO/6464CTO, BIOS 7LETC9WW (2.29 ) 
> 03/18/2011
> [ 2174.076440]  0000000000000009 ffff880095d55c40 ffffffff815db694 
> 0000000000000000
> [ 2174.076444]  ffff880095d55c78 ffffffff8104e78d 0000000000000000 
> ffff880136c3cd98
> [ 2174.076447]  ffff8800bac2b000 ffffffff8180cb5a 0000000000000000 
> ffff880095d55c88
> [ 2174.076448] Call Trace:
> [ 2174.076453]  [<ffffffff815db694>] dump_stack+0x4e/0x7a
> [ 2174.076643]  [<ffffffff8104e78d>] warn_slowpath_common+0x7d/0xa0
> [ 2174.076646]  [<ffffffff8104e86a>] warn_slowpath_null+0x1a/0x20
> [ 2174.076648]  [<ffffffff814046cf>] pnpacpi_set_resources+0x14f/0x160
> [ 2174.076651]  [<ffffffff81401db2>] pnp_start_dev+0x42/0x80
> [ 2174.076655]  [<ffffffff81400858>] pnp_bus_resume+0x88/0xa0
> [ 2174.076658]  [<ffffffff814007d0>] ? pnp_bus_suspend+0x20/0x20
> [ 2174.076662]  [<ffffffff8145e919>] dpm_run_callback+0x49/0xa0
> [ 2174.076664]  [<ffffffff8145ec18>] device_resume+0xc8/0x1f0
> [ 2174.076667]  [<ffffffff81460639>] dpm_resume+0x119/0x250
> [ 2174.076670]  [<ffffffff814609b1>] dpm_resume_end+0x11/0x20
> [ 2174.076673]  [<ffffffff810b4b0f>] suspend_devices_and_enter+0xff/0x680
> [ 2174.076676]  [<ffffffff810b5277>] pm_suspend+0x1e7/0x2a0
> [ 2174.076678]  [<ffffffff810b3c2c>] state_store+0x7c/0xf0
> [ 2174.076683]  [<ffffffff81359f2f>] kobj_attr_store+0xf/0x20
> [ 2174.076686]  [<ffffffff8124b1b5>] sysfs_kf_write+0x45/0x60
> [ 2174.076690]  [<ffffffff8124a4d9>] kernfs_fop_write+0xf9/0x180
> [ 2174.076694]  [<ffffffff811c66bd>] vfs_write+0xbd/0x1e0
> [ 2174.076696]  [<ffffffff811c7249>] SyS_write+0x49/0xb0
> [ 2174.076700]  [<ffffffff815ecbd6>] system_call_fastpath+0x1a/0x1f
> [ 2174.081587] ---[ end trace 32ffe1e61f685f01 ]---
> [ 2174.082221] serial 00:09: activated
> [ 2174.233290] thinkpad_acpi: ACPI backlight control delay disabled
> [ 2174.323685] ata4.00: ACPI cmd ef/03:42:00:00:00:a0 (SET FEATURES) filtered out
> [ 2174.323688] ata4.00: ACPI cmd ef/03:0c:00:00:00:a0 (SET FEATURES) filtered out
> [ 2174.324671] ata4.00: ACPI cmd e3/00:79:00:00:00:a0 (IDLE) succeeded
> [ 2174.325651] ata4.00: ACPI cmd e3/00:01:00:00:00:a0 (IDLE) succeeded
> [ 2174.345266] ata4.00: configured for UDMA/33
> --
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-- 
I speak only for myself.
Rafael J. Wysocki, Intel Open Source Technology Center.
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