Hello, During heavy disk load on my laptop, sometimes the IDE disk will pause for a second and then continue. I get this in my kernel log: [ 9031.028000] ata1.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x2 frozen [ 9031.028000] ata1.00: cmd c8/00:08:90:ca:ce/00:00:00:00:00/e0 tag 0 cdb 0x0 data 4096 in [ 9031.028000] res 40/00:00:00:00:00/00:00:00:00:00/00 Emask 0x4 (timeout) [ 9036.068000] ata1: port is slow to respond, please be patient (Status 0xd0) [ 9041.052000] ata1: device not ready (errno=-16), forcing hardreset [ 9041.052000] ata1: soft resetting port [ 9041.232000] ata1.00: configured for UDMA/100 [ 9041.232000] ata1: EH complete [ 9041.248000] sd 0:0:0:0: [sda] 78140160 512-byte hardware sectors (40008 MB) [ 9041.248000] sd 0:0:0:0: [sda] Write Protect is off [ 9041.248000] sd 0:0:0:0: [sda] Mode Sense: 00 3a 00 00 [ 9041.248000] sd 0:0:0:0: [sda] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA My question: What is this telling me, and do I need to be concerned? Everything continues to work normally after the message: no I/O errors, no fsck errors, etc. I've seen some similar reports on the mailing list, but they include slightly different messages. I would appreciate any information! uname -a (on Kubuntu Gutsy, CPU is a single-core 32-bit Pentium M): Linux superfly 2.6.22-14-386 #1 Tue Dec 18 07:34:24 UTC 2007 i686 GNU/Linux lspci: 00:00.0 Host bridge: Intel Corporation 82855PM Processor to I/O Controller (rev 03) 00:01.0 PCI bridge: Intel Corporation 82855PM Processor to AGP Controller (rev 03) 00:1d.0 USB Controller: Intel Corporation 82801DB/DBL/DBM (ICH4/ICH4-L/ICH4-M) USB UHCI Controller #1 (rev 01) 00:1d.1 USB Controller: Intel Corporation 82801DB/DBL/DBM (ICH4/ICH4-L/ICH4-M) USB UHCI Controller #2 (rev 01) 00:1d.2 USB Controller: Intel Corporation 82801DB/DBL/DBM (ICH4/ICH4-L/ICH4-M) USB UHCI Controller #3 (rev 01) 00:1d.7 USB Controller: Intel Corporation 82801DB/DBM (ICH4/ICH4-M) USB2 EHCI Controller (rev 01) 00:1e.0 PCI bridge: Intel Corporation 82801 Mobile PCI Bridge (rev 81) 00:1f.0 ISA bridge: Intel Corporation 82801DBM (ICH4-M) LPC Interface Bridge (rev 01) 00:1f.1 IDE interface: Intel Corporation 82801DBM (ICH4-M) IDE Controller (rev 01) 00:1f.5 Multimedia audio controller: Intel Corporation 82801DB/DBL/DBM (ICH4/ICH4-L/ICH4-M) AC'97 Audio Controller (rev 01) 01:00.0 VGA compatible controller: nVidia Corporation NV28 [GeForce4 Ti 4200 Go AGP 8x] (rev a1) 02:00.0 Ethernet controller: Broadcom Corporation NetXtreme BCM5705M Gigabit Ethernet (rev 01) 02:01.0 CardBus bridge: Texas Instruments PCI7510 PC card Cardbus Controller (rev 01) 02:01.2 FireWire (IEEE 1394): Texas Instruments PCI7410,7510,7610 OHCI-Lynx Controller 02:01.3 System peripheral: Texas Instruments PCI7410,7510,7610 PCI Firmware Loading Function 02:03.0 CardBus bridge: Texas Instruments PCI1410 PC card Cardbus Controller (rev 01) Thanks! - To unsubscribe from this list: send the line "unsubscribe linux-ide" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html