Promise PDC20378 - SETFEATURES SET TRANSFER MODE taskqueue timeout

[Miroslav Lachman]

Jeff Doolittle wrote:
> Everyone,
> 
> I just recently updated my primary server to the latest FreeBSD RELENG_6 
> release last weekend and have started receiving the following errors 
> every day requiring me to power off the computer (the console is hung 
> and Ctrl-Alt-Del don't work):
> 
> ============================================================
> Oct 18 23:15:02 saturn kernel: ad6: WARNING - SETFEATURES SET TRANSFER 
> MODE taskqueue timeout - completing request
> directly
> Oct 18 23:15:02 saturn kernel: ad6: WARNING - SETFEATURES ENABLE RCACHE 
> taskqueue timeout - completing request dire
> ctly
> Oct 18 23:15:02 saturn kernel: ad6: WARNING - SETFEATURES ENABLE WCACHE 
> taskqueue timeout - completing request dire
> ctly
> Oct 18 23:15:02 saturn kernel: ad6: WARNING - SET_MULTI taskqueue 
> timeout - completing request directly
> Oct 18 23:15:02 saturn kernel: ad6: TIMEOUT - WRITE_DMA retrying (1 
> retry left) LBA=1129375
> Oct 18 23:15:02 saturn kernel: ad4: WARNING - SETFEATURES SET TRANSFER 
> MODE taskqueue timeout - completing request
> directly
> Oct 18 23:15:02 saturn kernel: ad4: WARNING - SETFEATURES SET TRANSFER 
> MODE taskqueue timeout - completing request
> directly
> Oct 18 23:15:02 saturn kernel: ad4: WARNING - SETFEATURES ENABLE RCACHE 
> taskqueue timeout - completing request dire
> ctly
> Oct 18 23:15:02 saturn kernel: ad4: WARNING - SETFEATURES ENABLE WCACHE 
> taskqueue timeout - completing request dire
> ctly
> Oct 18 23:15:02 saturn kernel: ad4: WARNING - SET_MULTI taskqueue 
> timeout - completing request directly
> Oct 18 23:15:02 saturn kernel: ad4: TIMEOUT - WRITE_DMA retrying (1 
> retry left) LBA=1129375
> ============================================================
[...]

I had same problem many times and only mainboard replacement solves the 
problem.
Last time I saw these errors (1 week ago) it was in dying Asus RS-120 
which was running 6.2-RELEASE for about 6 month. So the problem is not 
related to 6.2-RELEASE, but to hardware.

Miroslav Lachman