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SubjectSystem clock loses time at approx 17 secs per two hours
First off, CC: back to me, as my machine can't handle an estimated 200
messages a day for me to sign up to the list 8-( - Anyway..

I updated my kernel to 2.4.3 when the patch was released. (Tarballs -
wonderful things!)

However, I noticed that the kernel timer loses seconds over time with both the
2.4.2 and 2.4.3 kernels (seems to be at a steady rate...), and the rate of
loss is NOT related to the CMOS clock. I compared against a 2.2.18 kernel,
which lost about 1 second in 14 hours - about what I'd expect with my
machine).

Now, has anybody else noticed their 2.4.x kernel losing time? If so, and
anyone knows how I can fix it so it behaves like 2.2.18, I'd be grateful.

<offtopic>
Can't say I like the April Fools release on "behalf" of Linus.
</offtopic>

===================
Some relevant data:
Linux version 2.4.3 (root@brick.flying-brick.caverock.net.nz)
(gcc version 2.95.3 19991030 (prerelease)) #2 Sat Mar 31 09:52:39 NZST 2001
Software present (among others)
Gnu C 2.95.3 Gnu make 3.77
binutils 2.9.5.0.31 Linux C Library 2.2.2
Dynamic linker (ldd) 2.2.2

Processor information (from /proc/cpuinfo) for a Cyrix-M II-300:
processor : 0
vendor_id : CyrixInstead
cpu family : 6
model : 2
model name : M II 3.5x Core/Bus Clock
stepping : 8
cpu MHz : 233.030
fdiv_bug : no
hlt_bug : no
f00f_bug : no
coma_bug : no
fpu : yes
fpu_exception : yes
cpuid level : 1
wp : yes
flags : fpu de tsc msr cx8 pge cmov mmx cyrix_arr
bogomips : 465.30

Loaded driver and hardware information (/proc/ioports, /proc/iomem)
==Drivers==
0000-001f : dma1
0020-003f : pic1
0040-005f : timer
0060-006f : keyboard
0080-008f : dma page reg
00a0-00bf : pic2
00c0-00df : dma2
00f0-00ff : fpu
0170-0177 : ide1
01f0-01f7 : ide0
0213-0213 : isapnp read
0220-022f : soundblaster
02f8-02ff : serial(auto)
0300-031f : eth0
0376-0376 : ide1
0388-038b : Yamaha OPL3
03c0-03df : vesafb
03f6-03f6 : ide0
0a79-0a79 : isapnp write
0cf8-0cff : PCI conf1
4000-400f : Silicon Integrated Systems [SiS] 5513 [IDE]
4000-4007 : ide0
4008-400f : ide1
e000-e07f : Silicon Integrated Systems [SiS] 5597/5598 VGA
==memory info==
00000000-0009efff : System RAM
000a0000-000bffff : Video RAM area
000c0000-000c7fff : Video ROM
000f0000-000fffff : System ROM
00100000-01cfffff : System RAM
00100000-001e9c4f : Kernel code
001e9c50-002445d7 : Kernel data
08000000-082fffff : vesafb
e1000000-e13fffff : Silicon Integrated Systems [SiS] 5597/5598 VGA
e1400000-e140ffff : Silicon Integrated Systems [SiS] 5597/5598 VGA
e1410000-e141ffff : Rockwell International HCF 56k V90 FaxModem
[7.5.] PCI information ('lspci -vvv' as root)
==PCI Information==
00:00.0 Host bridge: Silicon Integrated Systems [SiS] 5597 [SiS5582] (rev 10)
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B-
Status: Cap- 66Mhz- UDF- FastB2B- ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort+ >SERR- <PERR-
Latency: 64 set

00:01.0 ISA bridge: Silicon Integrated Systems [SiS] 85C503/5513 (rev 01)
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B-
Status: Cap- 66Mhz- UDF- FastB2B- ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR-
Latency: 0 set

00:01.1 IDE interface: Silicon Integrated Systems [SiS] 5513 [IDE] (rev d0) (prog-if 8a [Master SecP PriP])
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B-
Status: Cap- 66Mhz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR-
Latency: 64 set
Interrupt: pin A routed to IRQ 14
Region 0: I/O ports at <ignored>
Region 1: I/O ports at <ignored>
Region 2: I/O ports at <ignored>
Region 3: I/O ports at <ignored>
Region 4: I/O ports at 4000 [size=16]

00:0b.0 Serial controller: Rockwell International HCF 56k V90 FaxModem (rev 01) (prog-if 00 [8250])
Subsystem: Aztech System Ltd MDP3858SP-A SVD Modem
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B-
Status: Cap+ 66Mhz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR-
Latency: 64 set
Interrupt: pin A routed to IRQ 11
Region 0: Memory at e1410000 (32-bit, non-prefetchable) [size=64K]
Capabilities: [40] Power Management version 1
Flags: PMEClk- AuxPwr+ DSI+ D1+ D2+ PME+
Status: D0 PME-Enable- DSel=0 DScale=3 PME-
00:14.0 VGA compatible controller: Silicon Integrated Systems [SiS] 5597/5598 VGA (rev 68) (prog-if 00 [VGA])
Subsystem: Silicon Integrated Systems [SiS]: Unknown device 0200
Control: I/O+ Mem+ BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B-
Status: Cap- 66Mhz- UDF- FastB2B- ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR-
Interrupt: pin A routed to IRQ 0
Region 0: Memory at e1000000 (32-bit, prefetchable) [size=4M]
Region 1: Memory at e1400000 (32-bit, non-prefetchable) [size=64K]
Region 2: I/O ports at e000 [size=128]
Expansion ROM at <unassigned> [disabled] [size=32K]


--
/| _,.:*^*:., |\ Cheers from the Viking family,
| |_/' viking@ `\_| | including Pippin, our cat
| flying-brick | $FunnyMail Bilbo : Now far ahead the Road has gone,
\_.caverock.net.nz_/ 5.39 in LOTR : Let others follow it who can!

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