Messages in this thread | | | Date | Mon, 3 Mar 1997 09:42:59 -0500 (EST) | From | "Richard B. Johnson" <> |
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On my Dual Pentium 166 MHz machine running SMP, I have discovered a repeatable problem. It is possible to make it just STOP! No errors no obvious problems. After it stops, there is no response to the keyboard, nothing at all. The CPUs __seem__ to be halted with the interrupts off. This is evident by the chip temperature rapidly returning to room temperature. There is no bus activity except for an approximate 26 us CAS for refresh.
I have been running various "torture" tests on the SMP machine. The test that will cause it to halt is a "database" test that is attached (it's a small compressed tar file).
Using the included script "cont", I execute 3 copies of the database program. The CPU will halt after about 20 seconds.
This is the SCSI driver. No external drives are attached, and the internal drives are connected with a SHORT cable properly terminated on the far end. The controller is set for "auto termination" on its end. This has been shown to be reliable. My previous external cables were not, even though they were properly terminated, etc. This SCSI Controller sucks and will not properly drive normal length cables.
Adaptec AIC7xxx driver version: 4.0/3.2/4.0
Compile Options: AIC7XXX_RESET_DELAY : 5 AIC7XXX_CMDS_PER_LUN : 8 AIC7XXX_TWIN_SUPPORT : Enabled AIC7XXX_TAGGED_QUEUEING: Enabled AIC7XXX_PAGE_ENABLE : Enabled AIC7XXX_PROC_STATS : Disabled
Adapter Configuration: SCSI Adapter: AHA-2940 (AIC-787x chipset) Host Bus: Single Base IO: 0x6000 IRQ: 11 SCBs: Used 24, HW 16, Page 255 Interrupts: 54692 Serial EEPROM: True Extended Translation: Disabled SCSI Bus Reset: Enabled Ultra SCSI: Disabled Target Disconnect: Enabled
The current version.
Linux quark 2.1.27 #2 Thu Feb 27 11:36:56 EST 1997 i586
CPU info. Both processors are identical.
processor : 0 cpu : 586 model : Pentium 75+ vendor_id : GenuineIntel stepping : 12 fdiv_bug : no hlt_bug : no fpu : yes fpu_exception : yes cpuid : yes wp : yes flags : fpu vme de pse tsc msr mce cx8 apic bogomips : 66.36
processor : 1 cpu : 586 model : Pentium 75+ vendor_id : GenuineIntel stepping : 12 fdiv_bug : no hlt_bug : no fpu : yes fpu_exception : yes cpuid : yes wp : yes flags : fpu vme de pse tsc msr mce cx8 apic bogomips : 66.36
Memory.
total: used: free: shared: buffers: cached: Mem: 47886336 46473216 1413120 6885376 34312192 2957312 Swap: 102752256 155648 102596608 MemTotal: 46764 kB MemFree: 1380 kB MemShared: 6724 kB Buffers: 33508 kB Cached: 2888 kB SwapTotal: 100344 kB SwapFree: 100192 kB
Cheers, Dick Johnson -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=- Richard B. Johnson Project Engineer Analogic Corporation Voice : (508) 977-3000 ext. 3754 Fax : (508) 532-6097 Modem : (508) 977-6870 Ftp : ftp@boneserver.analogic.com Email : rjohnson@analogic.com, johnson@analogic.com Penguin : Linux version 2.1.27 on an i586 machine (66.15 BogoMips). Warning : It's hard to remain at the trailing edge of technology. -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=- [unhandled content-type:application/octet-stream]
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