[1.] One line summary of the problem: Kernel from 3.12.6 (did not try lower) to 3.13.2 gives a warning during resume from S3 sleep [2.] Full description of the problem/report: It doesn't happen with 2.6.24.7. OS is Debian Lenny, with vanilla kernel. It happens the same after upgrade to Squeeze. I suspend the machine with s2ram and it goes off. During the resume it writes that warning, then it seem to work normally, except for serial redirection of console. I use redirection of console to serial port (with lilo directive: append=" console=ttyS0 console=tty0") and I check the messages in another machine. This stops working as soon as I resume. It begins to send mangled lines and it doesn't work again until the next full restart. Only the serial redirection has this problem, the local console works. dmesg: PM: Syncing filesystems ... done. PM: Preparing system for mem sleep Freezing user space processes ... (elapsed 0.001 seconds) done. Freezing remaining freezable tasks ... (elapsed 0.006 seconds) done. PM: Entering mem sleep Suspending console(s) (use no_console_suspend to debug) sd 5:0:0:0: [sdc] Synchronizing SCSI cache sd 4:0:0:0: [sdb] Synchronizing SCSI cache sd 5:0:0:0: [sdc] Stopping disk sd 4:0:0:0: [sdb] Stopping disk sd 1:0:0:0: [sda] Synchronizing SCSI cache parport_pc 00:09: disabled serial 00:08: disabled serial 00:08: System wakeup disabled by ACPI serial 00:07: disabled serial 00:07: System wakeup disabled by ACPI sd 1:0:0:0: [sda] Stopping disk PM: suspend of devices complete after 859.795 msecs PM: late suspend of devices complete after 0.144 msecs pcieport 0000:00:1c.5: System wakeup enabled by ACPI ehci-pci 0000:00:1d.7: System wakeup enabled by ACPI uhci_hcd 0000:00:1d.2: System wakeup enabled by ACPI uhci_hcd 0000:00:1d.1: System wakeup enabled by ACPI uhci_hcd 0000:00:1d.0: System wakeup enabled by ACPI ehci-pci 0000:00:1a.7: System wakeup enabled by ACPI uhci_hcd 0000:00:1a.2: System wakeup enabled by ACPI uhci_hcd 0000:00:1a.1: System wakeup enabled by ACPI uhci_hcd 0000:00:1a.0: System wakeup enabled by ACPI PM: noirq suspend of devices complete after 32.930 msecs ACPI: Preparing to enter system sleep state S3 PM: Saving platform NVS memory Disabling non-boot CPUs ... smpboot: CPU 1 is now offline smpboot: CPU 2 is now offline smpboot: CPU 3 is now offline ACPI: Low-level resume complete PM: Restoring platform NVS memory Enabling non-boot CPUs ... x86: Booting SMP configuration: smpboot: Booting Node 0 Processor 1 APIC 0x1 Initializing CPU#1 CPU1 is up smpboot: Booting Node 0 Processor 2 APIC 0x3 Initializing CPU#2 CPU2 is up smpboot: Booting Node 0 Processor 3 APIC 0x2 Initializing CPU#3 CPU3 is up ACPI: Waking up from system sleep state S3 uhci_hcd 0000:00:1a.0: System wakeup disabled by ACPI uhci_hcd 0000:00:1a.1: System wakeup disabled by ACPI uhci_hcd 0000:00:1a.2: System wakeup disabled by ACPI ehci-pci 0000:00:1a.7: System wakeup disabled by ACPI uhci_hcd 0000:00:1d.0: System wakeup disabled by ACPI uhci_hcd 0000:00:1d.1: System wakeup disabled by ACPI uhci_hcd 0000:00:1d.2: System wakeup disabled by ACPI ehci-pci 0000:00:1d.7: System wakeup disabled by ACPI PM: noirq resume of devices complete after 99.105 msecs PM: early resume of devices complete after 0.059 msecs usb usb3: root hub lost power or was reset usb usb4: root hub lost power or was reset usb usb5: root hub lost power or was reset snd_hda_intel 0000:00:1b.0: irq 45 for MSI/MSI-X usb usb6: root hub lost power or was reset usb usb7: root hub lost power or was reset pcieport 0000:00:1c.5: System wakeup disabled by ACPI usb usb8: root hub lost power or was reset saa7133[0]: board init: gpio is 40000 serial 00:07: activated serial 00:08: activated parport_pc 00:09: activated r8169 0000:03:00.0 eth0: link down ------------[ cut here ]------------ WARNING: CPU: 0 PID: 7928 at kernel/kmod.c:148 __request_module+0x34/0x1ae() Modules linked in: vmnet(O) vsock(O) vmci(O) vmmon(O) lp fbcon font bitblit softcursor i915 drm_kms_helper fb fbdev cfbcopyarea video backlight cfbimgblt cfbfillrect bnep nfsd lockd sunrpc fuse saa7134_alsa snd_seq_dummy snd_seq_oss snd_seq_midi snd_rawmidi snd_seq_midi_event snd_seq snd_seq_device cifs rfcomm bluetooth rfkill it87 hwmon_vid isofs zlib_inflate nls_utf8 nls_iso8859_1 nls_cp850 nls_cp437 nls_ascii cpuid vfat ntfs msdos fat udf nls_iso8859_15 softdog loop tda1004x saa7134_dvb videobuf_dvb dvb_core tda827x mousedev tda8290 tuner snd_hda_codec_realtek snd_hda_intel snd_hda_codec saa7134 v4l2_common usb_storage videodev r8169 snd_hwdep parport_pc snd_pcm_oss snd_mixer_oss videobuf_dma_sg mii ehci_pci parport videobuf_core snd_pcm uhci_hcd firewire_ohci firewire_core evdev crc_itu_t ehci_hcd psmouse rtc_cmos tveeprom pcspkr intel_agp intel_gtt snd_timer snd_page_alloc CPU: 0 PID: 7928 Comm: kworker/u8:12 Tainted: G O 3.13.2 #1 Hardware name: Gigabyte Technology Co., Ltd. G33M-S2/G33M-S2, BIOS F7f 04/02/2008 Workqueue: events_unbound async_run_entry_fn 00000000 00000000 c13534fe c103d476 c102e079 00000009 f13ede00 f534f1a4 f80630d0 f534f024 c102e099 00000009 00000000 c103d476 ffffffff 01000282 c1036a29 00000282 f13edda4 c155c680 c155c680 c1036a5c 003a8aba c1353657 Call Trace: [<c13534fe>] ? dump_stack+0x3e/0x50 [<c103d476>] ? __request_module+0x34/0x1ae [<c102e079>] ? warn_slowpath_common+0x66/0x7a [<c102e099>] ? warn_slowpath_null+0xc/0xf [<c103d476>] ? __request_module+0x34/0x1ae [<c1036a29>] ? try_to_del_timer_sync+0x3a/0x41 [<c1036a5c>] ? del_timer_sync+0x2c/0x36 [<c1353657>] ? schedule_timeout+0x147/0x15d [<c1036aa6>] ? del_timer+0x40/0x40 [<f8062370>] ? v4l2_i2c_new_subdev_board+0x23/0xa7 [v4l2_common] [<f806243d>] ? v4l2_i2c_new_subdev+0x49/0x51 [v4l2_common] [<f831290b>] ? saa7134_board_init2+0x869/0xb58 [saa7134] [<c1036a29>] ? try_to_del_timer_sync+0x3a/0x41 [<c1036a5c>] ? del_timer_sync+0x2c/0x36 [<c1353657>] ? schedule_timeout+0x147/0x15d [<c1030003>] ? do_exit+0x51a/0x7ce [<f8313ca7>] ? saa7134_resume+0xbf/0x150 [saa7134] [<c11ef0a7>] ? pci_legacy_resume+0x23/0x2c [<c11ef19a>] ? pci_pm_thaw+0x62/0x62 [<c12650d5>] ? dpm_run_callback+0x25/0x60 [<c1265308>] ? device_resume+0x10f/0x12c [<c1265338>] ? async_resume+0x13/0x33 [<c1048004>] ? async_run_entry_fn+0x52/0xf3 [<c103fba7>] ? process_one_work+0x200/0x331 [<c103fe83>] ? worker_thread+0x1ab/0x2e1 [<c103fcd8>] ? process_one_work+0x331/0x331 [<c1044120>] ? kthread+0xa1/0xaa [<c135b837>] ? ret_from_kernel_thread+0x1b/0x28 [<c104407f>] ? kthread_freezable_should_stop+0x4d/0x4d ---[ end trace d02ad8471166632e ]--- ata7.01: ACPI cmd ef/03:0c:00:00:00:b0 (SET FEATURES) filtered out ata7.01: ACPI cmd ef/03:46:00:00:00:b0 (SET FEATURES) filtered out ata7.01: configured for UDMA/66 ata1: SATA link down (SStatus 0 SControl 300) /dev/vmmon[0]: HostIFReadUptimeWork: detected settimeofday: fixed uptimeBase old 18445352091656191211 new 18445352091650191210 attempts 1 firewire_core 0000:04:07.0: rediscovered device fw0 r8169 0000:03:00.0 eth0: link up ata2: SATA link up 3.0 Gbps (SStatus 123 SControl 300) ata2.00: configured for UDMA/133 sd 1:0:0:0: [sda] Starting disk ata6: SATA link up 1.5 Gbps (SStatus 113 SControl 300) ata6.00: configured for UDMA/133 sd 5:0:0:0: [sdc] Starting disk ata5: SATA link up 1.5 Gbps (SStatus 113 SControl 300) ata5.00: configured for UDMA/133 sd 4:0:0:0: [sdb] Starting disk floppy driver state ------------------- now=3846048 last interrupt=4294717586 diff=4095758 last called handler=seek_interrupt timeout_message=lock fdc last output bytes: 8 80 4294677234 8 80 4294677234 8 80 4294677234 8 80 4294677234 12 80 4294717581 0 90 4294717581 13 90 4294717581 0 90 4294717581 1a 90 4294717581 0 90 4294717581 3 90 4294717581 c1 90 4294717581 10 90 4294717581 7 90 4294717581 0 90 4294717581 8 81 4294717581 f 80 4294717581 0 90 4294717581 1 91 4294717581 8 81 4294717586 last result at 4294717586 last redo_fd_request at 4294717606 20 01 . status=0 fdc_busy=1 do_floppy=reset_interrupt cont=c139ffb8 current_req= (null) command_status=-1 floppy0: floppy timeout called PM: resume of devices complete after 10521.796 msecs psmouse serio1: Wheel Mouse at isa0060/serio1/input0 lost synchronization, throwing 3 bytes away. psmouse serio1: resync failed, issuing reconnect request PM: Finishing wakeup. Restarting tasks ... done. device eth0 left promiscuous mode bridge-eth0: disabled promiscuous mode bridge-eth0: disabling the bridge bridge-eth0: down bridge-eth0: detached /dev/vmnet: open called by PID 3506 (vmnet-bridge) /dev/vmnet: port on hub 0 successfully opened bridge-eth0: up bridge-eth0: attached device eth0 entered promiscuous mode bridge-eth0: enabled promiscuous mode userif-3: sent link down event. userif-3: sent link up event. -- To unsubscribe from this list: send the line "unsubscribe linux-media" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html