Thanks! I don't really understand the description, entirely, but I'm so glad to see a solution to my problem listed. It seems that disabling disk caching would slow things down quite a lot? Is there way to do this easily so that I can verify that this is, indeed the problem? 1.5GB of ram, seems a somewhat pricey solution to the problem... Shall I email this van de Ven character and see what he has to say? ----- Original Message ----- From: "Bas Hulsken" <bhulsken@xxxxxxxxxxxxxx> To: <ataraid-list@xxxxxxxxxx> Sent: Sunday, August 18, 2002 11:41 AM Subject: Re: Ataraid-list digest, Vol 1 #285 - 12 msgs > Hi Berck. > > I have more or less the same setup, abit kt7, duron, 2xibm30gb disks in > raid0. And I used to have the same problems you have. At that moment (I > don't know if something has changed recently, ask Arjan van de Ven) the > problem was that the linux raid driver has to allocate memory to write > to disk (buffers) but if you are out of memory, you first have write a > bit to the cache, but the cache is located on the raid volume so the > driver cannot write because it cannot allocate enough memory for > buffers. DEADLOCK. What solved the problem for me was extra memory. I > now have 1.5GB memory, and no more deadlocks. Other solutions might me > disabling disk cache, put cache on other driver etc,etc. > > regards > Bas Hulsken > > > From: "Berck E. Nash" <berck@xxxxxxxxxxxx> > > To: <ataraid-list@xxxxxxxxxx> > > Subject: HPT370 RAID0 hangs under heavy load > > Date: Sat, 17 Aug 2002 16:53:17 -0400 > > Reply-To: ataraid-list@xxxxxxxxxx > > > > I'm getting really, really frustrated. > > > > I've got an ABIT KT7-RAID motherboard which has the HPT370 chip. I've got a > > two-disk RAID-0 array. > > > > Linux appears to be set up beautifully with this array. My root partition > > is on the array, and it boots up beautifully and seems to work just dandy. > > UNTIL you flog the array. Under lengthy, heavy disk access, the system > > freezes hard, typically with the HD LED remaining on, though not always. > > Any long and hard disk access will do it, the easiest way I've found to > > trigger the lockup is by something akin to 'cp -avx /usr /copyusr'. It'll > > work at it for several minutes then invariably hang. > > > > Oh, I'm using ReiserFS, dunno if that makes a difference. (does make it > > easier to recover from these lock-ups) > > > > I'm using the latest version of both highpoint and A-bit bios. (HPT bios is > > 2.31) > > > > With Linux 2.4.18 as well as 2.4.19 the behavior is identical. The > > current -AC kernel hangs on boot-up during the various IDE probes. > > > > I've not tried the driver's on Highpoint's page because I'd rather not have > > to fool with initrd and scsi emulation. Just sounds yucky. I've browsed > > the archives as well as googled and can't find anything helpful. So... I'd > > have conclude that either no one else is having this problem, no one else > > has noticed this problem (as it only happens under HEAVY load).... Should I > > try earlier HPT bios's? > > > > ACPI is disabled... > > > > ANY feedback from folks running similar setups would be wonderful. > > > > Thanks, > > Berck > > > > > _______________________________________________ > > Ataraid-list@xxxxxxxxxx > https://listman.redhat.com/mailman/listinfo/ataraid-list >
