hda: timeout waiting for DMA
Este problema me viene de lejos, y tambien me viene grande por lo visto. Pues eso, que no soy capaz de atajarlo, y me realentiza enormemente el sistema. Me han dicho que puede ser de una mala configuracion del kernel. Si alguien me puede hechar una mano se lo agradeceria. Nov 1 22:30:55 localhost kernel: hda: timeout waiting for DMA Nov 1 22:30:55 localhost kernel: hda: irq timeout: status=0xd2 { Busy } Nov 1 22:30:55 localhost kernel: hda: DMA disabled Nov 1 22:30:55 localhost kernel: ide0: reset: success Nov 1 22:30:55 localhost kernel: hda: irq timeout: status=0xd0 { Busy } Nov 1 22:30:55 localhost kernel: ide0: reset: success Nov 1 22:30:55 localhost kernel: hda: irq timeout: status=0xd0 { Busy } Nov 1 22:30:55 localhost kernel: ide0: reset: success Gracias.
Re: hda: timeout waiting for DMA
[EMAIL PROTECTED]([EMAIL PROTECTED])@01.11.2001 22:44:22 +: Nov 1 22:30:55 localhost kernel: hda: timeout waiting for DMA Nov 1 22:30:55 localhost kernel: hda: irq timeout: status=0xd2 { Busy } Nov 1 22:30:55 localhost kernel: hda: DMA disabled Nov 1 22:30:55 localhost kernel: ide0: reset: success Nov 1 22:30:55 localhost kernel: hda: irq timeout: status=0xd0 { Busy } Nov 1 22:30:55 localhost kernel: ide0: reset: success Nov 1 22:30:55 localhost kernel: hda: irq timeout: status=0xd0 { Busy } Nov 1 22:30:55 localhost kernel: ide0: reset: success Hola. A mi me pasaba lo mismo y lo solucioné activando el DMA para el disco: # hdparm -d1 /dev/hda Echa un vistazo a la página de manual de hdparm(8) para ver todas las opciones disponibles. Debes tener precaución al usar este comando, puedes perder toda la información del disco. Para estimar el rendimiento del disco prueba a ejecutar: # hdparm -tT /dev/hda Opciones interesantes, además del DMA son -m (multiple sctors), -c (32-bit). Con -i obtienes la información sobre tu disco duro. Saludos -- Jesús Ángel del Pozo Domínguez Valladolid __ô GnuPG key-id: 0x17FB6CCE _ \_ http://www.tel.uva.es/~jpozdom (_)/(_) _ |.---.| A Prayer to my|| _ || COMPUTER ANGEL: || (\o/) || ||/_\|| Guide my keystrokes,||___|| Keep my programs alive, `-)---(-' Protect me from Windows, [=== -- o ]--. Back up my drive. __'-'__ \ [::: :::] ) Exit. `''`/T\ jgs \_/
hde timeout waiting for DMA ... HELP!!
Hi everyone, I think there is numerous posting on this subject, but I don't really know what is going on. Anyway, I have a Promise ATA100 on P3V4X. When I tried to install 2.2 from scratch and doing a dpkg installation. hde timeout waiting for DMA errow showed up. I am using Maxtor 91024U4 hd ATA66. It doesn't seem to produce any weird sound. Anyone has any suggestion for what I should do? buy a know hd? Also can CR-4028TE use 80 pin cable with no problem? thanx everyone... I need your help.. Edwin Lau
timeout waiting for DMA
Hey people. I'm trying to enable DMA on my wife's harddrive. Here's some info. poohbear:/proc# hdparm -i /dev/hda /dev/hda: Model=FUJITSU MPF3102AT, FwRev=0031, SerialNo=05601857 Config={ HardSect NotMFM HdSw15uSec Fixed DTR10Mbs } RawCHS=16383/16/63, TrkSize=0, SectSize=0, ECCbytes=4 BuffType=0(?), BuffSize=512kB, MaxMultSect=16, MultSect=16 DblWordIO=no, OldPIO=2, DMA=yes, OldDMA=2 CurCHS=16383/16/63, CurSects=16514064, LBA=yes, LBAsects=20015856 tDMA={min:120,rec:120}, DMA modes: mword0 mword1 mword2 IORDY=yes, tPIO={min:240,w/IORDY:120}, PIO modes: mode3 mode4 UDMA modes: mode0 mode1 mode2 mode3 *mode4 Now, when I try to enable DMA... poohbear:/proc# hdparm -d1 -X34 /dev/hda /dev/hda: setting using_dma to 1 (on) setting xfermode to 34 (multiword DMA mode2) using_dma= 1 (on) I get this in the syslog: May 5 07:17:16 poohbear kernel: hda: timeout waiting for DMA May 5 07:17:16 poohbear kernel: hda: irq timeout: status=0x58 { DriveReady SeekComplete DataRequest } May 5 07:17:16 poohbear kernel: hda: status timeout: status=0xd0 { Busy } May 5 07:17:16 poohbear kernel: hda: DMA disabled May 5 07:17:16 poohbear kernel: hda: drive not ready for command May 5 07:17:17 poohbear kernel: ide0: reset: success Any ideas on this? Could this also be related to why I can't get her sound to work? Thanks, I'd love to get this working for her. Mike -- Michael P. Soulier [EMAIL PROTECTED] With sufficient thrust, pigs fly just fine. However, this is not necessarily a good idea. It is hard to be sure where they are going to land, and it could be dangerous sitting under them as they fly overhead. -- RFC 1925 pgpOEurqMHnHE.pgp Description: PGP signature
Re: timeout waiting for DMA
On Sat, May 05, 2001 at 07:26:09AM -0400, Michael P. Soulier wrote: Hey people. I'm trying to enable DMA on my wife's harddrive. Here's some info. I'm not sure if this is of any help to you, but I did the same here, and I used this article as a guide: http://www.oreillynet.com/pub/a/linux/2000/06/29/hdparm.html Maybe you're missing a parameter somewhere. -- Alex Suzuki | [EMAIL PROTECTED] | http://www.cynox.ch To send me an email, remove NOSPAM from the above address
Re: timeout waiting for DMA
On Sat, May 05, 2001 at 02:21:46PM +0200, Alex Suzuki wrote: I'm not sure if this is of any help to you, but I did the same here, and I used this article as a guide: http://www.oreillynet.com/pub/a/linux/2000/06/29/hdparm.html Maybe you're missing a parameter somewhere. Yeah, I used it too. It just doesn't seem to like DMA. Would that prevent a soundcard from working, or is that a different kind of DMA? Mike -- Michael P. Soulier [EMAIL PROTECTED] With sufficient thrust, pigs fly just fine. However, this is not necessarily a good idea. It is hard to be sure where they are going to land, and it could be dangerous sitting under them as they fly overhead. -- RFC 1925 pgp8oB9a6R1cj.pgp Description: PGP signature
Re: hda timeout waiting for DMA?
On 23 Apr 2001, at 19:19, Stephen E. Hargrove wrote: I've got a server that's been running for quite some time now with no problems. Actually, it's running right now. However, just today, I've noticed some log entries I've never seen before: Apr 23 15:22:27 cx633007-b kernel: hda: timeout waiting for DMA Apr 23 15:22:27 cx633007-b kernel: ide_dmaproc: chipset supported ide_dma_timeout func only: 14 Apr 23 15:22:27 cx633007-b kernel: hda: irq timeout: status=0x58 { DriveReady SeekComplete DataRequest } hrm . . . anyone have any idea as to what might be going on? I had a similar message come up with hdc: hdc: timeout waiting for DMA hdc: irq timeout: status=0x58 { DriveReady SeekComplete DataRequest } Finally worked out that the system had been working fine (no timeouts) prior to me compiling up a firewall enabled kernel. I initally installed Debian 2.2.18pre21-compact. Comparing the config- files I found that I had set the option CONFIG_IDEDMA_AUTO to Y in my new kernel. make menuconfig lists this option under: Block Devices - Use DMA by default when availble. Removing this option (ie setting it to N) has fixed my system - havent had the timeout message since. HTH Lex ---==--==--==--==--- Lex McPhail Systems Analyst/Programmer Systems Software Instrumentation Ltd Christchurch New Zealand email: [EMAIL PROTECTED]
Re: hda timeout waiting for DMA?
On Tue, 24 Apr 2001, Lex McPhail wrote: I had a similar message come up with hdc: hdc: timeout waiting for DMA hdc: irq timeout: status=0x58 { DriveReady SeekComplete DataRequest } Finally worked out that the system had been working fine (no timeouts) prior to me compiling up a firewall enabled kernel. I initally installed Debian 2.2.18pre21-compact. Comparing the config- files I found that I had set the option CONFIG_IDEDMA_AUTO to Y in my new kernel. make menuconfig lists this option under: Block Devices - Use DMA by default when availble. Removing this option (ie setting it to N) has fixed my system - havent had the timeout message since. i find this very odd, considering that i haven't made any modifications to this particular system in several months. however hdparm -d 0 /dev/hda and the message has stopped appearing. this particular drive shouldn't have been configured to use dma anyway, so disabling dma makes perfect sense. -- steve * linux : http://exitwound.org mozart: http://mozart.sourceforge.net buck : http://www.BuckOwensFan.com *
Re: hda timeout waiting for DMA?
On Tue, Apr 24, 2001 at 09:01:04AM -0500, Stephen E. Hargrove wrote: i find this very odd, considering that i haven't made any modifications to this particular system in several months. however hdparm -d 0 /dev/hda and the message has stopped appearing. this particular drive shouldn't have been configured to use dma anyway, so disabling dma makes perfect sense. Is it a western digital? Really old? Do you have an unsupported chipset? Maybe we can get you using some form of dma with this drive. Post the output of lspci. Post the output of hdparm -i /dev/hda Mike
Re: hda timeout waiting for DMA?
On Tue, 24 Apr 2001, Mike Fedyk wrote: Is it a western digital? Really old? Do you have an unsupported chipset? Yes, it's a WD. Probably 5 years old, max. The chipset (which escapes me at the moment) is support, to the best of my recollection. Maybe we can get you using some form of dma with this drive. Post the output of hdparm -i /dev/hda /dev/hda: Model=WDC AC38400B, FwRev=32.02S32, SerialNo=WD-WM6210073506 Config={ HardSect NotMFM HdSw15uSec SpinMotCtl Fixed DTR5Mbs FmtGapReq } RawCHS=16383/16/63, TrkSize=57600, SectSize=600, ECCbytes=22 BuffType=DualPortCache, BuffSize=512kB, MaxMultSect=16, MultSect=off CurCHS=16383/16/63, CurSects=16514064, LBA=yes, LBAsects=16514064 IORDY=on/off, tPIO={min:160,w/IORDY:120}, tDMA={min:120,rec:120} PIO modes: pio0 pio1 pio2 pio3 pio4 DMA modes: mdma0 mdma1 *mdma2 udma0 udma1 udma2 Post the output of lspci. see the text attachment. -- steve * linux : http://exitwound.org mozart: http://mozart.sourceforge.net buck : http://www.BuckOwensFan.com * 00:00.0 Host bridge: Intel Corporation 440FX - 82441FX PMC [Natoma] (rev 02) Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR+ FastB2B- Status: Cap- 66Mhz- UDF- FastB2B+ ParErr- DEVSEL=medium TAbort- TAbort- MAbort+ SERR- PERR- Latency: 24 set 00:07.0 ISA bridge: Intel Corporation 82371SB PIIX3 ISA [Natoma/Triton II] (rev 01) Control: I/O+ Mem+ BusMaster+ SpecCycle+ MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- Status: Cap- 66Mhz- UDF- FastB2B+ ParErr- DEVSEL=medium TAbort- TAbort- MAbort- SERR- PERR- Latency: 0 set 00:07.1 IDE interface: Intel Corporation 82371SB PIIX3 IDE [Natoma/Triton II] (prog-if 80) Control: I/O+ Mem- BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- Status: Cap- 66Mhz- UDF- FastB2B+ ParErr- DEVSEL=medium TAbort- TAbort- MAbort- SERR- PERR- Latency: 16 set Region 4: I/O ports at ff50 00:0b.0 Network controller: Unknown device 14b7:0001 (rev 02) Subsystem: Unknown device 14b7:0001 Control: I/O+ Mem+ BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR+ FastB2B- Status: Cap- 66Mhz- UDF- FastB2B+ ParErr- DEVSEL=medium TAbort- TAbort- MAbort- SERR- PERR- Interrupt: pin A routed to IRQ 11 Region 0: Memory at ffbbfc00 (32-bit, non-prefetchable) Region 1: I/O ports at fc80 Region 3: I/O ports at ff60 00:0f.0 VGA compatible controller: S3 Inc. ViRGE/VX (rev 02) Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- Status: Cap- 66Mhz- UDF- FastB2B- ParErr- DEVSEL=medium TAbort- TAbort- MAbort- SERR- PERR- Latency: 4 min, 255 max, 24 set Interrupt: pin A routed to IRQ 11 Region 0: Memory at f800 (32-bit, non-prefetchable) 00:11.0 Multimedia audio controller: Creative Labs SB Live! (rev 07) Subsystem: Unknown device 1102:8061 Control: I/O+ Mem- BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR+ FastB2B- Status: Cap+ 66Mhz- UDF- FastB2B+ ParErr- DEVSEL=medium TAbort- TAbort- MAbort- SERR- PERR- Latency: 2 min, 20 max, 24 set Interrupt: pin A routed to IRQ 9 Region 0: I/O ports at ff80 Capabilities: [dc] Power Management version 1 Flags: PMEClk- AuxPwr- DSI- D1+ D2+ PME- Status: D0 PME-Enable- DSel=0 DScale=0 PME- 00:11.1 Input device controller: Creative Labs SB Live! Daughterboard (rev 07) Subsystem: Unknown device 1102:0020 Control: I/O+ Mem- BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR+ FastB2B- Status: Cap+ 66Mhz- UDF- FastB2B+ ParErr- DEVSEL=medium TAbort- TAbort- MAbort- SERR- PERR- Latency: 24 set Region 0: I/O ports at fff0 Capabilities: [dc] Power Management version 1 Flags: PMEClk- AuxPwr- DSI- D1+ D2+ PME- Status: D0 PME-Enable- DSel=0 DScale=0 PME- 00:13.0 Unknown mass storage controller: Promise Technology, Inc.: Unknown device 4d30 (rev 02) Subsystem: Unknown device 105a:4d33 Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- Status: Cap+ 66Mhz- UDF- FastB2B- ParErr- DEVSEL=medium TAbort- TAbort- MAbort- SERR- PERR- Latency: 24 set Interrupt: pin A routed to IRQ 10 Region 0: I/O ports at ffe0 Region 1: I/O ports at ffac Region 2: I/O ports at ffa0 Region 3: I/O ports at ffa8 Region 4: I/O ports at ff00 Region 5: Memory at ffbc (32-bit, non-prefetchable) Capabilities: [58] Power Management version 1 Flags: PMEClk- AuxPwr- DSI- D1- D2- PME- Status: D0 PME-Enable- DSel=0 DScale=0 PME-
Re: hda timeout waiting for DMA?
On Tue, Apr 24, 2001 at 03:06:38PM -0500, Stephen E. Hargrove wrote: On Tue, 24 Apr 2001, Mike Fedyk wrote: Is it a western digital? Really old? Do you have an unsupported chipset? Yes, it's a WD. Probably 5 years old, max. The chipset (which escapes me at the moment) is support, to the best of my recollection. Maybe we can get you using some form of dma with this drive. Post the output of hdparm -i /dev/hda /dev/hda: Model=WDC AC38400B, FwRev=32.02S32, SerialNo=WD-WM6210073506 Config={ HardSect NotMFM HdSw15uSec SpinMotCtl Fixed DTR5Mbs FmtGapReq } RawCHS=16383/16/63, TrkSize=57600, SectSize=600, ECCbytes=22 BuffType=DualPortCache, BuffSize=512kB, MaxMultSect=16, MultSect=off CurCHS=16383/16/63, CurSects=16514064, LBA=yes, LBAsects=16514064 IORDY=on/off, tPIO={min:160,w/IORDY:120}, tDMA={min:120,rec:120} PIO modes: pio0 pio1 pio2 pio3 pio4 DMA modes: mdma0 mdma1 *mdma2 udma0 udma1 udma2 From all of the messages I've seen on lkml, I wouldn't enable dma unless you're feeling adventurous. You can use hdparm -m16 -c3, and it should give you a performance boost. I have a 35GB WD that I'm going to play with to see if I can get it working with dma reliably. If you do, I'd compile a kernel with the ide patch to get more features of your ide chipset (PIIX3) supported.
hda timeout waiting for DMA?
I've got a server that's been running for quite some time now with no problems. Actually, it's running right now. However, just today, I've noticed some log entries I've never seen before: Apr 23 15:22:27 cx633007-b kernel: hda: timeout waiting for DMA Apr 23 15:22:27 cx633007-b kernel: ide_dmaproc: chipset supported ide_dma_timeout func only: 14 Apr 23 15:22:27 cx633007-b kernel: hda: irq timeout: status=0x58 { DriveReady SeekComplete DataRequest } hrm . . . anyone have any idea as to what might be going on? -- steve * linux : http://exitwound.org mozart: http://mozart.sourceforge.net buck : http://www.BuckOwensFan.com *
Re: hda timeout waiting for DMA?
On Mon, Apr 23, 2001 at 07:19:17PM -0500, Stephen E. Hargrove wrote: I've got a server that's been running for quite some time now with no problems. Actually, it's running right now. However, just today, I've noticed some log entries I've never seen before: Apr 23 15:22:27 cx633007-b kernel: hda: timeout waiting for DMA Apr 23 15:22:27 cx633007-b kernel: ide_dmaproc: chipset supported ide_dma_timeout func only: 14 Apr 23 15:22:27 cx633007-b kernel: hda: irq timeout: status=0x58 { DriveReady SeekComplete DataRequest } hrm . . . anyone have any idea as to what might be going on? Is your hard drive making any unusual sounds? This is usually a sign that the HD is going bad or is bad. I would make a backup quick if you don't have one. I've seen reported on this mail list people successfully using hdparm to straiten things out but ymmv. You can search the list archives for timeout status SeekComplete etc. and come up with lots of hits. hth, kent -- From seeing and seeing the seeing has become so exhausted First line of The Panther - R. M. Rilke
Re: hda timeout waiting for DMA?
On Mon, Apr 23, 2001 at 08:57:54PM -0500, ktb wrote: On Mon, Apr 23, 2001 at 07:19:17PM -0500, Stephen E. Hargrove wrote: I've got a server that's been running for quite some time now with no problems. Actually, it's running right now. However, just today, I've noticed some log entries I've never seen before: Apr 23 15:22:27 cx633007-b kernel: hda: timeout waiting for DMA Apr 23 15:22:27 cx633007-b kernel: ide_dmaproc: chipset supported ide_dma_timeout func only: 14 Apr 23 15:22:27 cx633007-b kernel: hda: irq timeout: status=0x58 { DriveReady SeekComplete DataRequest } hrm . . . anyone have any idea as to what might be going on? Is your hard drive making any unusual sounds? This is usually a sign that the HD is going bad or is bad. I would make a backup quick if you don't have one. I've seen reported on this mail list people successfully using hdparm to straiten things out but ymmv. You can search the list archives for timeout status SeekComplete etc. and come up with lots of hits. hth, kent Don't say that to quick. I get that exact error when I have hdparm set my hd to a mode it doesn't like. What has change recently? New kernel? You using the ide patch for 2.2? run this: find /etc -type f | xargs grep -il hdparm It'll list files that have hdparm in them. Look at the file and see if it's being run on startup, or when you see this error... Mike
Re: hdc: timeout waiting for DMA
On Mon, Mar 26, 2001 at 02:09:13PM +1200, Lex McPhail wrote: | What does the following message mean: | | hdc: timeout waiting for DMA | hdc: irq timeout: status=0x58 { DriveReady SeekComplete DataRequest } | The drive is probably going bad, or you might just have a bad machine. About a month and a half ago I got errors like this (then the ide bus would reset it would try again, and again ..., and I couldn't do anything but pull the plug). I saved all my data, ran Maxtor's diagnostic utilities (I have a Maxtor drive) and it said all was fine. I reinstalled Debian, and last night got the errors again. This time I unplugged my zip drive, and the machine was ok. My box only has a 110 watt power supply, so I think I was pushing it over its limit and the hd really is fine. If you have a similar situation with your box, try removing disks you don't really use and see if the problem goes away. If it does, live without the disks or get a bigger power supply. HTH, -D
hdc: timeout waiting for DMA
What does the following message mean: hdc: timeout waiting for DMA hdc: irq timeout: status=0x58 { DriveReady SeekComplete DataRequest } It is coming up on my Debian 2.2.18pre21 potato installation quite regularly since I have compiled up a kernel to make the system a firewall + ipmasq computer. I cant remember it coming up when I was running the kernel I initially downloaded: Debian 2.2.18pre21-compact. hdc is a QUANTIUM FIREBALL ST2.1A Anyone got any ideas where I should go from here?
Re: hdc: timeout waiting for DMA
On Mon, Mar 26, 2001 at 02:09:13PM +1200, Lex McPhail wrote: What does the following message mean: hdc: timeout waiting for DMA hdc: irq timeout: status=0x58 { DriveReady SeekComplete DataRequest } It is coming up on my Debian 2.2.18pre21 potato installation quite regularly since I have compiled up a kernel to make the system a firewall + ipmasq computer. I cant remember it coming up when I was running the kernel I initially downloaded: Debian 2.2.18pre21-compact. hdc is a QUANTIUM FIREBALL ST2.1A Anyone got any ideas where I should go from here? Usually this is a sign the drive is going bad. I would recommend pulling off any info you want to save and then try your old kernel and see if the errors still exist. Take a look in the archives I have seen people tweak with hdparm and straiten things out but ymmv. kent -- From seeing and seeing the seeing has become so exhausted First line of The Panther - R. M. Rilke
Re: hdc: timeout waiting for DMA
On Mon 26 Mar 01, 2:09 PM, Lex McPhail said: What does the following message mean: hdc: timeout waiting for DMA hdc: irq timeout: status=0x58 { DriveReady SeekComplete DataRequest } i think it means linux wanted to do an operation, sent the request, waited for the IRQ to say i'm done but never got the interrupt. Anyone got any ideas where I should go from here? unfortunately not. best advice i can give is make sure the IDE ribbon cable is tightly in place and the the power cable is in too. -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of unsubscribe. Trouble? Contact [EMAIL PROTECTED] -- Coffee... I've conquered the Borg on coffee! [EMAIL PROTECTED] -- Kathryn Janeway on the virtues of coffee www.dirac.org/p
Re: hdc: timeout waiting for DMA
Thus spake Lex McPhail ([EMAIL PROTECTED]): hdc: timeout waiting for DMA hdc: irq timeout: status=0x58 { DriveReady SeekComplete DataRequest } hdc is a QUANTIUM FIREBALL ST2.1A It could be one of two things. It could be caused by a buggy IDE controller (PIIX3 is one such example) that advertises itself as a BM-DMA controller without fully supporting the standard. Try turning off DMA on all devices on that controller by using hdparm -d0 [device]. Another possibility is the hard disk is beginning to fail. Are you getting any other errors? Do you hear any clicking, grinding, or harmonic noises coming from the disk? If so, throw the data to tape or a good hard disk and replace it. Even though I have had no problems with Quantum Fireball drives, IDE drives in general are not exactly built in a quality fashion, if you hear any odd noises or begin to get I/O errors, or bus resets, replace it immediately. -- oneiros [EMAIL PROTECTED]1024D/62C2F77D url: http://oneiros.darkspire.net/ EBB8 AF14 8C43 2F12 7623 irc: EFnet / opn C0AA C0AE 56D4 62C2 F77D
Re: hdc: timeout waiting for DMA -- extended
hi all, On Mon 26 Mar 01, 2:09 PM, Lex McPhail said: What does the following message mean: hdc: timeout waiting for DMA hdc: irq timeout: status=0x58 { DriveReady SeekComplete DataRequest } i think it means linux wanted to do an operation, sent the request, waited for the IRQ to say i'm done but never got the interrupt. i got a whole bunch of these this morning and then our debian 2.2.17 system crashed with the following: kernel panic LFS: VRU block list corrupted i cant seem to find out what that means anywhere? i rebooted and changed the drive in question, but can anyone explain what this is about? Regards, Marc-Adrian Napoli Network Administrator Connect infobahn Australia +61 2 92120387