Hello, I have some issues on Linux-2.4.0: During boot the (slightly modified, see later) kernel says: <4>Linux version 2.4.0-NANO (root@elf) (gcc version 2.95.2 19991024 (release)) #1 Mon Jan 8 22:04:48 MET 2001 [...] <4>PCI: PCI BIOS revision 2.10 entry at 0xfb280, last bus=1 <4>PCI: Using configuration type 1 <4>PCI: Probing PCI hardware <4>Unknown bridge resource 0: assuming transparent ??? What does the message above mean? <4>PCI: Using IRQ router VIA [1106/0596] at 00:07.0 <6>Activating ISA DMA hang workarounds. The DMI reports some funny values for my low-price board (the vendor did not ship a DMI utility as Asus did for my old one): <6>DMI 2.2 present. <6>39 structures occupying 1055 bytes. <6>DMI table at 0x000F0800. <4>BIOS Vendor: Award Software International, Inc. <4>BIOS Version: 4.51 PG <4>BIOS Release: 06/19/00 <4>System Vendor: VIA Technologies, Inc.. <4>Product Name: VT82C693BX. <4>Version . <4>Serial Number . ??? Aren't they (above two lines) funny? <4>Board Vendor: Shuttle Inc.. <4>Board Name: HOT-AV11 693-596-W977. <4>Board Version: 2A6LGH2A. [...] As reported for 2.4.0-test12 there seems to be a problem timing events within an interrupt (e.g. serial): The jitter is quite high. I'm timing pulses generated from a GPS clock every second to estimate the clock error. I'll show the first few updates. Let's show some facts first, and they state a suspect. The pair is seconds:nanoseconds for the captured timestamps. My pulse is roughly 200ms+800ms: 979070631:649924277 979070632:49920873 979070633:649922851 979070634:49921630 979070635:649923125 979070636:49920800 ??? Oops! Time jumped back! 979070633:354954544 979070633:754953483 979070635:354954708 979070635:754954209 979070637:354955615 979070637:754953649 979070639:354955938 979070639:754953328 ??? Again! 979070637:59988575 979070637:459985921 979070639:59986981 979070639:459985930 979070641:59986854 979070641:459985908 979070643:59987006 979070643:459987393 979070645:59987262 979070645:136458168 979070642:765020874 979070643:165018428 979070644:765019464 979070645:165018406 979070646:765019339 979070647:165018295 979070648:765019475 979070649:165018274 979070646:470052764 979070646:870050956 979070648:470053050 979070648:870051264 979070650:470052609 979070650:870051691 979070652:470052047 979070652:870050772 979070650:175085546 979070650:575083574 979070652:175084550 979070652:575083463 979070654:175085050 979070654:575084190 979070656:175084787 979070656:575083420 979070658:175084652 979070658:251540985 979070655:880118226 979070656:280115991 979070657:880118654 979070658:280116032 979070659:880118844 979070660:280115978 979070661:880123413 979070662:280115897 979070659:585150248 979070659:985148519 979070661:585149737 979070661:985148498 979070663:585150396 979070663:985148476 979070665:585150361 979070665:985148365 979070663:290189552 979070663:690181048 979070665:290182834 979070665:690181774 979070667:290182445 979070667:690181783 979070669:290182466 979070669:690181672 979070671:290182951 I either think that some overflow happens, or that some spinlock is really busy. You can find the patch used in ftp://ftp.kernel.org/pub/linux/daemons/ntp/PPS/PPS-2.4.0-pre3.tar.bz2 My CPU is identified as: elf:/tmp # cat /proc/cpuinfo processor : 0 vendor_id : GenuineIntel cpu family : 6 model : 6 model name : Celeron (Mendocino) stepping : 5 cpu MHz : 501.149 cache size : 128 KB fdiv_bug : no hlt_bug : no sep_bug : no f00f_bug : no coma_bug : no fpu : yes fpu_exception : yes cpuid level : 2 wp : yes flags : fpu vme de pse tsc msr pae mce cx8 sep mtrr pge mca cmov pat pse36 mmx fxsr bogomips : 999.42 Regards, Ulrich - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] Please read the FAQ at http://www.tux.org/lkml/
