Date: Tue, 8 Jun 2004 01:56:24 -0400 From: Allan Fields <bsd@afields.ca> To: "Alastair G. Hogge" <agh@tpg.com.au> Cc: current@freebsd.org Subject: Re: Custom kernels causing Promise ATA RAID to go down Message-ID: <20040608055624.GC59752@afields.ca> In-Reply-To: <200406061940.15400.agh@tpg.com.au> References: <200406061940.15400.agh@tpg.com.au>
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On Sun, Jun 06, 2004 at 07:40:15PM +1000, Alastair G. Hogge wrote: > For a couple of weeks now I've been having problems with my custom kernel > crashing the system. I've re-cvsup'd and nuked /usr/obj and rebuild worlds > > The problem is that my kernel keeps causing ATA DMA READ/WRITE > errors and then eventually causing my RAID array to go down, thus > needing a deletation and re-definition thru the BIOS. Plus uncountable > fsck run thru. Yup, it sucks.. basically if your RAID goes bad, with most Promise controllers you need to reboot into BIOS and wait a long time for it to rebuild. I found the Promise BIOS a little lacking. I'm not a fan of oblique menu-based tools, especially when working w/ disks. Online rebuild is available on some ATA controllers but can also be slow. > I don't know how to capture and store the output. As the system just basicly > hangs and freezes the keyboard. Most of the time I've been X, which can only > be solved with a hard reboot. Also, just curious, but are you swapping off the RAID? If your RAID has read/write errors and you use it for swap, it is likely that it will cause the system to lock, possibly including the console. Do you have a second machine to use as a serial console? Another thing to try: try pinging the host and see if it responds. I use a null-modem cable and tip(1): When I was having problems w/ my Promise controller, I'd typically capture the output using script(1) or screen(1). > Running a GENERIC kernel is (with debuging things removed) is so slow. X/KDE > performs so poorly now. What's interesting is why this only happens w/ your custom kernels. I've also experienced instability with Promise RAID controllers in the past but didn't ever use a GENERIC kernel. I'm interested in this issue, but don't know if it's related. Also: Perhaps your Promise controller or drives are overheating? -- Allan Fields, AFRSL - http://afields.ca 2D4F 6806 D307 0889 6125 C31D F745 0D72 39B4 5541
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