Date: Tue, 05 Jun 2007 08:35:22 -0700 From: Garrett Cooper <youshi10@u.washington.edu> To: "N. Harrington" <drumslayer2@yahoo.com> Cc: questions@freebsd.org Subject: Re: How to solve mysterious system lockups? Message-ID: <466582BA.5070500@u.washington.edu> In-Reply-To: <798114.3933.qm@web34504.mail.mud.yahoo.com> References: <798114.3933.qm@web34504.mail.mud.yahoo.com>
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N. Harrington wrote: > --- Garrett Cooper <youshi10@u.washington.edu> wrote: > > >> N. Harrington wrote: >> >>> Hello >>> I have several systems that are used as squid >>> caching servers. I have some systems that use SCSI >>> disks and some that use SATA disks. They are >>> identical in everyway except for the sata vs SCSI >>> drives. >>> >>> At random times, the sata based systems seem to >>> >> be >> >>> freezing. You can ping them and they respond, but >>> >> you >> >>> cannot log in. Nor are any logs processed during >>> >> that >> >>> time. >>> >>> I figure it mist be something to do with the >>> >> disks, >> >>> but I am not sure how to solve it. There seems to >>> >> be >> >>> little rhyme or reason. It does not happen >>> >> necessarily >> >>> during busy times. It can happen in the middle of >>> >> the >> >>> night. >>> >>> Any pointers in how to track down the cause would >>> >> be >> >>> much appreciated. >>> >>> Tyan S2881 Motherboard - 4gigs mem >>> Using 4 SATA (or scsi) drives >>> FreeBSD amd64 6.2-STABLE. >>> >>> Thanks! >>> >>> Nicole >>> >>> >> Nicole, >> What's the driver in use for the SATA and the >> SCSI drives? >> -Garrett >> > > Hi Garret > Here is the driver info. > > -- SATA > > atapci0: <SiI 3114 SATA150 controller> port > 0xbc00-0xbc07,0xb400-0xb403,0xb000-0xb007,0xac00-0xac03,0xa800-0xa80f > > mem > 0xfeafec00-0xfeafefff irq 17 at device 5.0 on pci3 > ata2: <ATA channel 0> on atapci0 > ata3: <ATA channel 1> on atapci0 > ata4: <ATA channel 2> on atapci0 > ata5: <ATA channel 3> on atapci0 > pci3: <display, VGA> at device 6.0 (no driver > attached) > isab0: <PCI-ISA bridge> at device 7.0 on pci0 > isa0: <ISA bus> on isab0 > atapci1: <AMD 8111 UDMA133 controller> port > 0x1f0-0x1f7,0x3f6,0x170-0x177,0x376,0xffa0-0xffaf at > device 7.1 on pci0 > ata0: <ATA channel 0> on atapci1 > ata1: <ATA channel 1> on atapci1 > pci0: <serial bus, SMBus> at device 7.2 (no driver > attached) > pci0: <bridge> at device 7.3 (no driver attached) > pcib2: <ACPI PCI-PCI bridge> at device 10.0 on pci0 > pci2: <ACPI PCI bus> on pcib2 > > -- SCSI > > ahd0: <Adaptec AIC7902 Ultra320 SCSI adapter> port > 0x8000-0x80ff,0x7800-0x78ff > mem 0xfc89c000-0xfc89dfff irq 24 at device 10.0 on > pci2 > ahd0: [GIANT-LOCKED] > aic7902: Ultra320 Wide Channel A, SCSI Id=7, PCI-X > 67-100Mhz, 512 SCBs > ahd1: <Adaptec AIC7902 Ultra320 SCSI adapter> port > 0x8800-0x88ff,0x8400-0x84ff > mem 0xfc89e000-0xfc89ffff irq 25 at device 10.1 on > pci2 > ahd1: [GIANT-LOCKED] > aic7902: Ultra320 Wide Channel B, SCSI Id=7, PCI-X > 67-100Mhz, 512 SCBs > pci0: <base peripheral, interrupt controller> at > device 10.1 (no driver attached) > pcib3: <ACPI PCI-PCI bridge> at device 11.0 on pci0 > pci1: <ACPI PCI bus> on pcib3 > pci0: <base peripheral, interrupt controller> at > device 11.1 (no driver attached) > > > > Thanks! > > Nicole Ok, so it's an AMD 8111 northbridge versus an Adaptec onboard SCSI controller. 1. What release / version of FreeBSD are you using? You should upgrade to 6.2 STABLE because there have been a variety of issues worked out in previous releases. 2. Do you have any logs for activity during the hours when it locks up (in particular anything interesting / fishy popping up)? 3. What scheduler are you using? 4BSD, ULE? 4. Does your machine (using the SATA controllers) lock up under heavy load? If so, you may have a northbridge cooling issue that you need to put a fan on. For instance, the motherboard that I was using for a while (ASUS P5N-E SLI) was really close to my CPU heatsink, and there was a lot of heat transfer between my northbridge and CPU heatsink, which was raising the onboard temperatures 5~10 degrees C. The new motherboard (ASUS P5B DLX) doesn't do that though. Cheers, -Garrett
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