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SubjectRe: Regression with suspend resume 5a87182aa21d6d5d306840feab9321818dd3e2a3
Dne 8.12.2013 12:13, Paul Bolle napsal(a):
> On Sun, 2013-12-08 at 11:24 +0100, Zdenek Kabelac wrote:
>> I'm testing recent 3.13-rc kernel - and I've notice my Lenovo T61 is not able
>> to resume. After bisect I've found commit:
>> 5a87182aa21d6d5d306840feab9321818dd3e2a3
> That's "cpufreq: suspend governors on system suspend/hibernate".
>> When I just revert this commit with 374b105797c3d4f29c685f3be535c35f5689b30e
>> (3.13-rc3) suspend/resume works again.
>> (I'm using ondemand CPU governor)
> Rafael just asked Linus to pull a revert of that commit (see
> ).

I'm not sure - but it also could be related with another warning I'm getting
during resume:

But possibly this is result in i915 update ?


PM: Syncing filesystems ... done.
Freezing user space processes ... (elapsed 0.005 seconds) done.
Freezing remaining freezable tasks ... (elapsed 0.001 seconds) done.
Suspending console(s) (use no_console_suspend to debug)
sd 0:0:0:0: [sda] Synchronizing SCSI cache
sd 0:0:0:0: [sda] Stopping disk
------------[ cut here ]------------
WARNING: CPU: 0 PID: 2042 at drivers/gpu/drm/i915/intel_display.c:9948
intel_get_pipe_from_connector+0x49/0x50 [i915]()
Modules linked in: i915 i2c_algo_bit drm_kms_helper drm ctr ccm ipt_MASQUERADE
iptable_nat nf_nat_ipv4 nf_nat nf_conntrack_ipv4 nf_defrag_ipv4 xt_conntrack
nf_conntrack ipt_REJECT xt_CHECKSUM iptable_mangle xt_tcpudp tun bridge stp
llc ipv6 ip6_tables iptable_filter ip_tables ebtable_nat ebtables x_tables
bnep btusb bluetooth snd_hda_codec_analog iTCO_wdt iTCO_vendor_support arc4
coretemp kvm_intel kvm microcode iwl3945 iwlegacy psmouse serio_raw mac80211
i2c_i801 i2c_core sdhci_pci r852 sm_common sdhci nand cfg80211 nand_ecc
snd_hda_intel nand_ids mmc_core mtd snd_hda_codec r592 snd_hwdep snd_seq
memstick snd_seq_device snd_pcm lpc_ich mfd_core e1000e snd_page_alloc
snd_timer ptp pps_core thinkpad_acpi wmi nvram snd soundcore evdev binfmt_misc
nfsd auth_rpcgss oid_registry exportfs loop nfs_acl lockd sunrpc pcmcia sr_mod
yenta_socket cdrom ehci_pci ehci_hcd uhci_hcd usbcore usb_common video
backlight autofs4
CPU: 0 PID: 2042 Comm: kworker/u4:3 Tainted: G W
3.13.0-rc3-00006-gee4645c #186
Hardware name: LENOVO 6464CTO/6464CTO, BIOS 7LETC9WW (2.29 ) 03/18/2011
Workqueue: events_unbound async_run_entry_fn
0000000000000009 ffff88009ad21af8 ffffffff815a3bfe 0000000000000000
ffff88009ad21b30 ffffffff8104924d ffff8800b5f4fe00 ffff8800aa408000
ffffffffffffffff ffff8800b5f4fe00 ffff8800b5f4fe00 ffff88009ad21b40
Call Trace:
[<ffffffff815a3bfe>] dump_stack+0x4e/0x7a
[<ffffffff8104924d>] warn_slowpath_common+0x7d/0xa0
[<ffffffff8104932a>] warn_slowpath_null+0x1a/0x20
[<ffffffffa0c27f59>] intel_get_pipe_from_connector+0x49/0x50 [i915]
[<ffffffffa0c41e05>] intel_panel_disable_backlight+0x25/0x180 [i915]
[<ffffffffa0c2cfad>] intel_disable_lvds+0x4d/0x180 [i915]
[<ffffffffa0c1ceda>] i9xx_crtc_disable+0x28a/0x380 [i915]
[<ffffffffa0be50ca>] i915_drm_freeze+0xca/0x150 [i915]
[<ffffffffa0be54cd>] i915_pm_suspend+0x3d/0x90 [i915]
[<ffffffff813668bc>] pci_pm_suspend+0x6c/0x150
[<ffffffff81366850>] ? pci_pm_freeze+0xe0/0xe0
[<ffffffff81433e89>] dpm_run_callback+0x49/0xa0
[<ffffffff8143428d>] __device_suspend+0xdd/0x280
[<ffffffff8143444f>] async_suspend+0x1f/0xa0
[<ffffffff81079e87>] async_run_entry_fn+0x37/0x130
[<ffffffff8106a8ed>] process_one_work+0x1fd/0x6d0
[<ffffffff8106a88b>] ? process_one_work+0x19b/0x6d0
[<ffffffff8106aee1>] worker_thread+0x121/0x3a0
[<ffffffff8106adc0>] ? process_one_work+0x6d0/0x6d0
[<ffffffff81072fc0>] kthread+0xf0/0x110
[<ffffffff81072ed0>] ? insert_kthread_work+0x70/0x70
[<ffffffff815b402c>] ret_from_fork+0x7c/0xb0
[<ffffffff81072ed0>] ? insert_kthread_work+0x70/0x70
---[ end trace 7517bdfd550790cc ]---
PM: suspend of devices complete after 797.599 msecs
PM: late suspend of devices complete after 3.960 msecs

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