Description of problem: Suspend to RAM suspends alright, but after resume, disk is no longer accessible, leading to Input/output error. Version-Release number of selected component (if applicable): kernel-2.6.25.4-10.fc8 running in FC8 on Dell Inspiron 9300 How reproducible: Always. Steps to Reproduce: 1. pm-suspend 2. wait for system to go to sleep 3. after a while, awake the sleeping system with a short power button push Actual results: X11 comes up fine, mouse movable, can type in Emacs buffers, can start shells But as soon as I try to access the files, I get: ~> hdparm /sbin/hdparm: Input/output error Only way out is a power cycle. Expected results: A fully functioning system in the state I left it when suspending. Additional info: Suspend to RAM gives this output in /var/log/messages: Jun 8 13:10:20 z kernel: ACPI: PCI interrupt for device 0000:03:00.0 disabled Jun 8 13:10:20 z ntpd[2232]: ntpd exiting on signal 15 Jun 8 13:10:21 z kernel: PM: Syncing filesystems ... done. Jun 8 13:10:42 z kernel: Freezing user space processes ... (elapsed 0.00 seconds) done. Nothing is printed after resume. I have the following harddrive: ~> hdparm -iv /dev/sda /dev/sda: IO_support = 0 (default 16-bit) readonly = 0 (off) readahead = 256 (on) geometry = 12161/255/63, sectors = 195371568, start = 0 Model=FUJITSU MHV2100AH , FwRev=00000096, SerialNo= NT23T5525PR2 Config={ HardSect NotMFM HdSw>15uSec Fixed DTR>10Mbs } RawCHS=16383/16/63, TrkSize=0, SectSize=0, ECCbytes=0 BuffType=DualPortCache, BuffSize=8192kB, MaxMultSect=16, MultSect=?8? CurCHS=16383/16/63, CurSects=16514064, LBA=yes, LBAsects=195371568 IORDY=yes, tPIO={min:240,w/IORDY:120}, tDMA={min:120,rec:120} PIO modes: pio0 pio1 pio2 pio3 pio4 DMA modes: mdma0 mdma1 mdma2 UDMA modes: udma0 udma1 udma2 udma3 udma4 *udma5 AdvancedPM=yes: mode=0x80 (128) WriteCache=enabled Drive conforms to: ATA/ATAPI-6 T13 1410D revision 3a: ATA/ATAPI-2,3,4,5,6 * signifies the current active mode Suspend to RAM works just fine when running Windows on the same hardware. Suspend to DISK works just fine in the used linux kernel: ~> pm-hibernate /var/log/messages: Jun 8 13:02:08 z kernel: ACPI: PCI interrupt for device 0000:03:00.0 disabled Jun 8 13:02:08 z ntpd[2223]: ntpd exiting on signal 15 Jun 8 13:03:25 z kernel: PM: Syncing filesystems ... done. Jun 8 13:03:25 z kernel: Freezing user space processes ... (elapsed 0.00 seconds) done. Jun 8 13:03:25 z kernel: Freezing remaining freezable tasks ... (elapsed 0.00 seconds) done. Jun 8 13:03:25 z kernel: PM: Shrinking memory... #010-#010done (0 pages freed) Jun 8 13:03:25 z kernel: PM: Freed 0 kbytes in 0.07 seconds (0.00 MB/s) Jun 8 13:03:25 z kernel: Suspending console(s) Jun 8 13:03:25 z kernel: drm_sysfs_suspend Jun 8 13:03:25 z kernel: sd 0:0:0:0: [sda] Synchronizing SCSI cache Jun 8 13:03:25 z kernel: ACPI: PCI interrupt for device 0000:03:01.2 disabled Jun 8 13:03:25 z kernel: ACPI: PCI interrupt for device 0000:00:1f.2 disabled Jun 8 13:03:25 z kernel: ACPI: PCI interrupt for device 0000:00:1e.3 disabled Jun 8 13:03:25 z kernel: ACPI: PCI interrupt for device 0000:00:1e.2 disabled Jun 8 13:03:25 z kernel: ACPI: PCI interrupt for device 0000:00:1d.7 disabled Jun 8 13:03:25 z kernel: ACPI: PCI interrupt for device 0000:00:1d.3 disabled Jun 8 13:03:25 z kernel: ACPI: PCI interrupt for device 0000:00:1d.2 disabled Jun 8 13:03:25 z kernel: ACPI: PCI interrupt for device 0000:00:1d.1 disabled Jun 8 13:03:25 z kernel: ACPI: PCI interrupt for device 0000:00:1d.0 disabled Jun 8 13:03:25 z kernel: ACPI: Preparing to enter system sleep state S4 Jun 8 13:03:25 z kernel: Disabling non-boot CPUs ... Jun 8 13:03:25 z kernel: PM: Creating hibernation image: Jun 8 13:03:25 z kernel: PM: Need to copy 57046 pages Jun 8 13:03:25 z kernel: Intel machine check architecture supported. Jun 8 13:03:25 z kernel: Intel machine check reporting enabled on CPU#0. Jun 8 13:03:25 z kernel: ACPI: PCI Interrupt 0000:00:1d.0[A] -> GSI 16 (level, low) -> IRQ 16 Jun 8 13:03:25 z kernel: usb usb2: root hub lost power or was reset Jun 8 13:03:25 z kernel: ACPI: PCI Interrupt 0000:00:1d.1[B] -> GSI 17 (level, low) -> IRQ 17 Jun 8 13:03:25 z kernel: usb usb3: root hub lost power or was reset Jun 8 13:03:25 z kernel: ACPI: PCI Interrupt 0000:00:1d.2[C] -> GSI 18 (level, low) -> IRQ 18 Jun 8 13:03:25 z kernel: usb usb4: root hub lost power or was reset Jun 8 13:03:25 z kernel: ACPI: PCI Interrupt 0000:00:1d.3[D] -> GSI 19 (level, low) -> IRQ 19 Jun 8 13:03:25 z kernel: usb usb5: root hub lost power or was reset Jun 8 13:03:25 z kernel: ACPI: PCI Interrupt 0000:00:1d.7[A] -> GSI 16 (level, low) -> IRQ 16 Jun 8 13:03:25 z kernel: usb usb1: root hub lost power or was reset Jun 8 13:03:25 z kernel: ehci_hcd 0000:00:1d.7: debug port 1 Jun 8 13:03:25 z kernel: ACPI: PCI Interrupt 0000:00:1e.2[A] -> GSI 16 (level, low) -> IRQ 16 Jun 8 13:03:25 z kernel: ACPI: PCI Interrupt 0000:00:1e.3[B] -> GSI 17 (level, low) -> IRQ 17 Jun 8 13:03:25 z kernel: ACPI: PCI Interrupt 0000:00:1f.2[B] -> GSI 17 (level, low) -> IRQ 17 Jun 8 13:03:25 z kernel: ata2.00: _GTF evaluation failed (AE 0x1001) Jun 8 13:03:25 z kernel: ata2.01: _GTF evaluation failed (AE 0x1001) Jun 8 13:03:25 z kernel: ata1.00: _GTF evaluation failed (AE 0x1001) Jun 8 13:03:25 z kernel: ata1.01: _GTF evaluation failed (AE 0x1001) Jun 8 13:03:25 z kernel: ACPI: PCI Interrupt 0000:01:00.0[A] -> GSI 16 (level, low) -> IRQ 16 Jun 8 13:03:25 z kernel: ata1.00: configured for UDMA/100 Jun 8 13:03:25 z kernel: sd 0:0:0:0: [sda] 195371568 512-byte hardware sectors (100030 MB) Jun 8 13:03:25 z kernel: sd 0:0:0:0: [sda] Write Protect is off Jun 8 13:03:25 z kernel: sd 0:0:0:0: [sda] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA Jun 8 13:03:25 z kernel: ACPI: PCI Interrupt 0000:03:01.2[C] -> GSI 17 (level, low) -> IRQ 17 Jun 8 13:03:25 z kernel: ata2.00: configured for UDMA/33 Jun 8 13:03:25 z kernel: sd 0:0:0:0: [sda] Starting disk Jun 8 13:03:25 z kernel: Restarting tasks ... done. Jun 8 13:03:25 z kernel: ACPI: PCI Interrupt 0000:03:00.0[A] -> GSI 18 (level, low) -> IRQ 18 Jun 8 13:03:25 z kernel: ssb: Sonics Silicon Backplane found on PCI device 0000:03:00.0 Jun 8 13:03:25 z kernel: b44.c:v2.0 Jun 8 13:03:25 z kernel: eth0: Broadcom 44xx/47xx 10/100BaseT Ethernet 00:14:22:e3:86:c9
Same result as above on latest kernel-2.6.25.6-27.fc8.
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