ad0: TIMEOUT - READ_DMA retrying (2 retries left) LBA=207594611

David Schultz das at FreeBSD.ORG
Sun Sep 19 00:48:29 PDT 2004


On Sat, Sep 18, 2004, Stikheev Andrew wrote:
> [ Charset ISO-8859-1 unsupported, converting... ]
> > Stikheev Andrew wrote:
> > >    Hi,
> > >  
> > >     I also have same problems, but only with SATA-disks with
> > >    SiI 3112 SATA150 controller (check it with two controllers - onboard
> > >    and pci) . Under heavy load on sata-disks system freezes.
> > 
> > Thats a seprate issue with the sii3112 and your sources are way too old 
> > to compare with a new -current.
> > You sii3112 timeouts should actually be fixed now :)
>   
>    Hmm, I update system to last -current(16 Sep), no freezes yet, 
>    but too many messages like this:
> 
> ad0: TIMEOUT - WRITE_DMA retrying (2 retries left) LBA=3526743
> ad0: WARNING - WRITE_DMA no interrupt but good status
[...]
> ad4: TIMEOUT - WRITE_DMA retrying (2 retries left) LBA=89221071
> ad6: TIMEOUT - WRITE_DMA retrying (2 retries left) LBA=114679887
> ad6: TIMEOUT - WRITE_DMA retrying (1 retry left) LBA=114679887

FWIW, I've been seeing the same problem---WRITE_DMA timeouts on
ad4 and ad6, and both write and read timeouts on ad0.  The problem
occurs for 6-CURRENT as of 9/14.  It does not occur for BETA4.
I can try to narrow this down further if needed.  Here's some
information about the machine, which has ad4 and ad6 mirrored via ccd(4):

atapci0: <Intel ICH5 UDMA100 controller> port 0xffa0-0xffaf,0x376,0x170-0x177,0x3f6,0x1f0-0x1f7 at device 31.1 on pci0
ata0: channel #0 on atapci0
ata1: channel #1 on atapci0
atapci1: <Intel ICH5 SATA150 controller> port 0xdc00-0xdc0f,0xe000-0xe003,0xe400-0xe407,0xe800-0xe803,0xec00-0xec07 irq 18 at device 31.2 on pci0
ata2: channel #0 on atapci1
ata3: channel #1 on atapci1
[...]
ad0: 190782MB <WDC WD2000JB-00DUA3/75.13B75> [387621/16/63] at ata0-master UDMA100
ad4: 35304MB <WDC WD360GD-00FNA0/35.06K35> [71730/16/63] at ata2-master SATA150
ad6: 35304MB <WDC WD360GD-00FNA0/35.06K35> [71730/16/63] at ata3-master SATA150

das at VARK:/home/t/freebsd/vark/src/usr.bin/systat> vmstat -i
interrupt                          total       rate
irq1: atkbd0                       17607          3
irq4: sio0                             2          0
irq6: fdc0                            10          0
irq8: rtc                         734353        127
irq12: psm0                         3332          0
irq13: npx0                            1          0
irq14: ata0                       278748         48
irq18: em0 uhci2+                 485861         84
irq19: pcm0 uhci1                      2          0
irq0: clk                         573674         99
Total                            2093590        364


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