On Tue, Jan 18, 2011 at 9:35 AM, Rafael J. Wysocki <rjw@xxxxxxx> wrote: > Do you have CONFIG_RCU_CPU_STALL_DETECTOR set? If not, please set it. Then, > set CONFIG_RCU_CPU_STALL_TIMEOUT to something like 10 (in either case), run > a suspend-resume cycle and see if there are any CPU stalls reported in the > logs. Configured and see nothing specific. The 30 seconds delays is indicated below in the dmesg at resume ... 2011-01-18T13:00:48.399866+08:00 boston kernel: PM: early resume of devices complete after 50.816 msecs 2011-01-18T13:00:48.399868+08:00 boston kernel: ehci_hcd 0000:00:1a.0: power state changed by ACPI to D0 2011-01-18T13:00:48.399871+08:00 boston kernel: ehci_hcd 0000:00:1a.0: power state changed by ACPI to D0 2011-01-18T13:00:48.399874+08:00 boston kernel: i915 0000:00:02.0: power state changed by ACPI to D0 2011-01-18T13:00:48.399877+08:00 boston kernel: i915 0000:00:02.0: power state changed by ACPI to D0 2011-01-18T13:00:48.399879+08:00 boston kernel: ehci_hcd 0000:00:1a.0: PCI INT D -> GSI 23 (level, low) -> IRQ 23 2011-01-18T13:00:48.399882+08:00 boston kernel: i915 0000:00:02.0: setting latency timer to 64 2011-01-18T13:00:48.399884+08:00 boston kernel: ehci_hcd 0000:00:1a.0: setting latency timer to 64 2011-01-18T13:00:48.399887+08:00 boston kernel: HDA Intel 0000:00:1b.0: PCI INT B -> GSI 17 (level, low) -> IRQ 17 2011-01-18T13:00:48.399889+08:00 boston kernel: HDA Intel 0000:00:1b.0: setting latency timer to 64 2011-01-18T13:00:48.399892+08:00 boston kernel: HDA Intel 0000:00:1b.0: irq 41 for MSI/MSI-X 2011-01-18T13:00:48.399894+08:00 boston kernel: ehci_hcd 0000:00:1d.0: power state changed by ACPI to D0 2011-01-18T13:00:48.399898+08:00 boston kernel: pci 0000:00:1e.0: setting latency timer to 64 2011-01-18T13:00:48.399901+08:00 boston kernel: ehci_hcd 0000:00:1d.0: power state changed by ACPI to D0 2011-01-18T13:00:48.399904+08:00 boston kernel: ehci_hcd 0000:00:1d.0: PCI INT D -> GSI 19 (level, low) -> IRQ 19 2011-01-18T13:00:48.399906+08:00 boston kernel: ehci_hcd 0000:00:1d.0: setting latency timer to 64 2011-01-18T13:00:48.399941+08:00 boston kernel: ahci 0000:00:1f.2: setting latency timer to 64 2011-01-18T13:00:48.399943+08:00 boston kernel: sd 0:0:0:0: [sda] Starting disk 2011-01-18T13:00:48.399946+08:00 boston kernel: ioremap error for 0xbb77e000-0xbb781000, requested 0x10, got 0x0 2011-01-18T13:00:48.399949+08:00 boston kernel: ata1: SATA link up 3.0 Gbps (SStatus 123 SControl 300) 2011-01-18T13:00:48.399953+08:00 boston kernel: ata1.00: ACPI cmd ef/02:00:00:00:00:a0 (unknown) succeeded 2011-01-18T13:00:48.399955+08:00 boston kernel: ata1.00: ACPI cmd f5/00:00:00:00:00:a0 (unknown) filtered out 2011-01-18T13:00:48.399958+08:00 boston kernel: ata1.00: ACPI cmd ef/10:03:00:00:00:a0 (unknown) filtered out 2011-01-18T13:00:48.399961+08:00 boston kernel: ata1.00: ACPI cmd ef/02:00:00:00:00:a0 (unknown) succeeded 2011-01-18T13:00:48.399963+08:00 boston kernel: ata1.00: ACPI cmd f5/00:00:00:00:00:a0 (unknown) filtered out 2011-01-18T13:00:48.399966+08:00 boston kernel: ata1.00: ACPI cmd ef/10:03:00:00:00:a0 (unknown) filtered out 2011-01-18T13:00:48.399968+08:00 boston kernel: ata1.00: configured for UDMA/100 2011-01-18T13:00:48.399970+08:00 boston kernel: ata5: SATA link down (SStatus 0 SControl 300) 2011-01-18T13:00:48.399973+08:00 boston kernel: ata6: SATA link down (SStatus 0 SControl 300) 2011-01-18T13:00:48.399975+08:00 boston kernel: PM: resume of devices complete after 407.508 msecs <============= 30 seconds delays here =============> 2011-01-18T13:00:48.399977+08:00 boston kernel: Restarting tasks ... done. >> Now I have another problem which might be totally unrelated. Just >> realized that my notebook can't suspend to "disk" ... used to work >> last week. So, something has changed as well. May be someone has >> already reported/fixed this. > > Not that I know of. What do you mean by "can't suspend"? echo platform >/sys/power/disk; echo disk >/sys/power/state Last line I see is ... "Suspending console(s) (use no_console_suspend to debug)" .. and activity after that. Thanks, Jeff _______________________________________________ linux-pm mailing list linux-pm@xxxxxxxxxxxxxxxxxxxxxxxxxx https://lists.linux-foundation.org/mailman/listinfo/linux-pm
