Red Hat Bugzilla – Bug 47156
system freeze on VIA/IDE + SAMSUNG hd
Last modified: 2007-04-18 12:34:25 EDT
About every 30-60 minutes my system will suddenly freeze for a few seconds and then resume while spitting out the messages ----------- hda: timeout waiting for DMA ide_dmaproc: chipset supported ide_dma_timeout func only: 14 hda: status timeout: status=0xd0 { Busy } hda: drive not ready for command ide0: reset: success ---------- During the time the entire system is frozen (including mouse) and the harddisk led will light continuously even though I can hear no harddisc activity. Sometimes the system will not return to normal (I wated for a few minites) at all and I have to pull the plug. This is a fresh install with the latest errata kernel (2.4.3-12) plus all updates. I have only one ide drive (primary master). I have tried to disable dma for this drive and turned off the second ide bus in the bios. But to no avail. Moreover, this is a dual boot machine RH7.1/Win2000 and the problem is not present under Windows, so it is not a hard ware defect. Some hardawre information: ---------------------------------------- VP_IDE: IDE controller on PCI bus 00 dev 39 VP_IDE: chipset revision 6 VP_IDE: not 100% native mode: will probe irqs later ide: Assuming 33MHz system bus speed for PIO modes; override with idebus=xx VP_IDE: VIA vt82c596a (rev 05) IDE UDMA33 controller on pci00:07.1 ide0: BM-DMA at 0xffa0-0xffa7, BIOS settings: hda:DMA, hdb:pio hda: SAMSUNG SV0844D, ATA DISK drive ide0 at 0x1f0-0x1f7,0x3f6 on irq 14 -------------------------- [root@tomcat /proc]# lspci 00:00.0 Host bridge: VIA Technologies, Inc. VT82C691 [Apollo PRO] (rev 01) 00:01.0 PCI bridge: VIA Technologies, Inc. VT82C598/694x [Apollo MVP3/Pro133x AGP] 00:07.0 ISA bridge: VIA Technologies, Inc. VT82C596 ISA [Mobile South] (rev 05) 00:07.1 IDE interface: VIA Technologies, Inc. Bus Master IDE (rev 06) 00:07.3 Host bridge: VIA Technologies, Inc. VT82C596 Power Management 00:09.0 SCSI storage controller: Adaptec AIC-7881U 00:0a.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL-8029(AS) 00:0b.0 Ethernet controller: Digital Equipment Corporation DECchip 21140 [FasterNet] (rev 11) 01:00.0 VGA compatible controller: ATI Technologies Inc 3D Rage IIC AGP (rev 7a)
Could you try passing "ide=nodma" as kernel option on the lilo prompt? That makes Linux avoid DMA on the drive
I tried to turn dma off in /etc/sysconfig/harddiscs but that seems to get ignored!? Anyway, turning off dma does not help. It looks like there is some conflict with my second network card an ne2k-pci model.
It is a problem with the hard drive only. I just put the hd into an entirely differnent box and the problem persists. I also tired kernel-2.4.7-0.3.
I replaced the hd by a different one. Probalby not worth further pursuing this bug.