Messages in this thread |  | | Subject | Re: AIC7xxx panic | From | Jim Crilly <> | Date | 07 Oct 2001 07:28:57 -0400 |
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Both disks on the controller are Seagate Cheetahs, the one being worked during the panic is a ST39204LW, the other disk is a ST318451LW.
I did have TCQ enabled and I left it at the default of 255, I'll try a lower value tomorrow, since it's so late.
Jim
On Sun, 2001-10-07 at 06:48, Rob Turk wrote: > "Jim Crilly" <noth@noth.is.eleet.ca> wrote in message > news:cistron.1002451051.3718.20.camel@warblade... > > I got a reproducible panic while running dbench simulating 25+ clients, > > the new aic7xxx driver panics with "Too few segs for dma mapping. > > "Increase AHC_NSEG". The partition in question is FAT32 and on a > > different disk than /, I'm not using HIGHMEM. I am using XFS and the > > preempt patches, but I don't think they're related to the panic. > > > > The odd thing, is if I run dbench in the same manner on my / partition, > > which is on a different disk on the same controller, it goes fine. It > > seems, to my untrained eye anyway, to be a bad interaction between the > > vfat driver and the aic7xxx driver. > > > > I'm using the old aic7xxx driver right now and it's fine, has anyone > > else seen anything like this? > > > > Jim > > Since this seems to fail on just one disk, it might have to do with one of the > disk characteristics, like command queue depth. Did you enable Tagged Command > Queueing, and if so, can you try playing around with the maximum depth? > > Rob > > > > > - > 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/ -- Help protect your rights on-line. Join the Electronic Frontiers Foundation today: http://www.eff.org/join ----------------------------------------------------------------------- Security: Antonyms: See Microsoft ----------------------------------------------------------------------- "We are coming after you. God may have mercy on you, but we won't," declared Sen. John McCain, R-Arizona.
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