Messages in this thread | | | Date | Thu, 9 Oct 2003 16:22:34 -0300 (BRT) | From | Bartlomiej Zolnierkiewicz <> | Subject | Re: Serverworks CSB5 IDE-DMA Problem (2.4 and 2.6) |
| |
Bart,
Do you have any idea ?
Wild guess: Disable APIC?
On Tue, 7 Oct 2003, Stefan Kaltenbrunner wrote:
> Hello! > > we have a bunch of IBM x305 here which are entrylevel 1HE servers based > on a Serverworks CSB5 chipset. > One of those has 2 120GB IDE disks in a software RAID1 and the main > userspace-application is a heavly (mostly insert/update) used > postgresql-database. The database generates a lot of sustained > IO-traffic and after some minutes (depends on the load - sometimes it > even works for one or two hours) the kernel generates the following > messages(2.4.22 and 2.6.0-test6 behave almost identically - > error-messages are from 2.6.0-test6): > > > hdc: dma_timer_expiry: dma status == 0x20 > hdc: DMA timeout retry > hdc: timeout waiting for DMA > hdc: status timeout: status=0xd0 { Busy } > > hdc: drive not ready for command > ide1: reset: success > hdc: dma_timer_expiry: dma status == 0x20 > hdc: DMA timeout retry > hdc: timeout waiting for DMA > hdc: status timeout: status=0xd0 { Busy } > > hdc: drive not ready for command > ide1: reset: success > hdc: dma_timer_expiry: dma status == 0x20 > hdc: DMA timeout retry > hdc: timeout waiting for DMA > hdc: status timeout: status=0xd0 { Busy } > > hdc: drive not ready for command > ide1: reset: success > hdc: dma_timer_expiry: dma status == 0x20 > hdc: DMA timeout retry > hdc: timeout waiting for DMA > hdc: status timeout: status=0xd0 { Busy } > > hdc: drive not ready for command > ide1: reset: success > hda: dma_timer_expiry: dma status == 0x60 > hda: DMA timeout retry > hda: timeout waiting for DMA > hda: status timeout: status=0xd0 { Busy } > > hdb: DMA disabled > hda: drive not ready for command > ide0: reset: success > blk: queue dfdee200, I/O limit 4095Mb (mask 0xffffffff) > hda: dma_timer_expiry: dma status == 0x20 > hda: DMA timeout retry > hda: timeout waiting for DMA > hda: status timeout: status=0xd0 { Busy } > > hda: drive not ready for command > ide0: reset: success > hda: dma_timer_expiry: dma status == 0x20 > hda: DMA timeout retry > hda: timeout waiting for DMA > hda: status timeout: status=0xd0 { Busy } > > hda: drive not ready for command > ide0: reset: success > > > after one of this events DMA on one of the disks (either hdc or hda) > gets disabled and the maschine is heavily overloaded and the database > cannot keep up any more with the incoming load of database-updates. > It's also worth mentioning that the kernel reports a "DMA disabled" only > for hdb which is the internal cd-drive and completely unused. > > I do know that Serverworks IDE has been flaky (especially with the CSB4) > in the past but I thought this had been fixed in newer chipset-revisions > - is there anything I can do to solve this problem? > > dmesg of the machine in question can be found at > http://www.kaltenbrunner.cc/files/dmesg.txt > > > > many thanks > > Stefan Kaltenbrunner > > - > To unsubscribe from this list: send the line "unsubscribe linux-kernel" in > the body of a message to majordomo@vger.kernel.org > More majordomo info at http://vger.kernel.org/majordomo-info.html > Please read the FAQ at http://www.tux.org/lkml/ >
- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
| |