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Date: Fri, 19 Nov 2004 08:30:32 GMT
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From: Ilya Pizik <polzun@scar.jinr.ru>
Subject: Re: kern/74070: DMA problwms with large disks and HPT370
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The following reply was made to PR kern/74070; it has been noted by GNATS.

From: Ilya Pizik <polzun@scar.jinr.ru>
To: freebsd-gnats-submit@FreeBSD.org, tuure@laurinolli.net
Cc:  
Subject: Re: kern/74070: DMA problwms with large disks and HPT370
Date: Fri, 19 Nov 2004 11:21:41 +0300

 Me has the same problem:
 RELENG_5 from 16.11
 There are 5 HDD in my PC:
 60Gb (Seagate connected via Intel ICH2 UDMA100 controller)
 120Gb (Seagate connected via Intel ICH2 UDMA100 controller)
 250Gb (WD connected via Intel ICH2 UDMA100 controller)
 250Gb (WD connected via Promise PDC20268 UDMA100 controller)
 120Gb (Seagate connected via Promise PDC20268 UDMA100 controller)
 
 Such messages appear in log when PC is heavy loaded:
 kernel: ad3: TIMEOUT - READ_DMA retrying (2 retries left) LBA=369792831
 kernel: ad3: FAILURE - READ_DMA timed out
 kernel: ad3: TIMEOUT - READ_DMA retrying (2 retries left) LBA=421053375
 kernel: ad3: FAILURE - READ_DMA timed out
 kernel: ad2: TIMEOUT - READ_DMA retrying (2 retries left) LBA=355563327
 kernel: ad2: FAILURE - READ_DMA timed out
 kernel: ad2: TIMEOUT - READ_DMA retrying (2 retries left) LBA=11109887
 kernel: ad2: WARNING - removed from configuration
 kernel: ata1-slave: FAILURE - READ_DMA timed out
 kernel: ad2: TIMEOUT - READ_DMA retrying (2 retries left) LBA=488374591
 kernel: ad2: WARNING - removed from configuration
 kernel: ata1-slave: FAILURE - READ_DMA timed out
 
 ...
 
 I try to detach an attach devices with atacontrol - result is DMA errors
 only with 250Gb HDDs
 
 
 -- 
 With respect, Pizik Ilya.