lkml.org 
[lkml]   [2004]   [Dec]   [20]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
From
Subject2.4.26 date and hwclock
Date
All,
we have seen a strange timer problem with running kernel-2.4.26 on many
different machines. After few hours of uptime both date and hwclock shows
different time in output. I'm sending few out of those observations
System 1
uptime ; date ; /sbin/hwclock
7:58pm up 2 days, 5:39, 2 users, load average: 0.00, 0.02, 0.07
Mon Dec 20 19:58:19 IST 2004
Mon Dec 20 19:58:32 2004 -0.606892 seconds

System 2
uptime ; date ; /sbin/hwclock
8:02pm up 4 days, 47 min, 1 user, load average: 0.00, 0.00, 0.00
Mon Dec 20 20:02:05 IST 2004
Mon Dec 20 20:02:30 2004 -0.885209 seconds

System 3
uptime ; date ; /sbin/hwclock
8:13pm up 5 days, 9:38, 2 users, load average: 0.01, 0.05, 0.07
Mon Dec 20 20:13:02 IST 2004
Mon Dec 20 20:13:32 2004 -0.229820 seconds

Seems have fix skew of 6 seconds in a day (24-hour). Is it a known problem
and already fixed? In last of mail you can find dmesg of last 2 systems.

This kernel is downloaded from http://www.kernel.org and having few
networking patches applied namely, br-nf, imq, netfilter patch-o-matic.

Please CC to me. Thankx
-- Sumit


System 2 (dmesg)

000.
Enabling APIC mode: Flat. Using 1 I/O APICs
Processors: 1
Kernel command line: auto BOOT_IMAGE=linux-up ro root=305
BOOT_FILE=/boot/vmlinuz-2.4.26-3 acpi=off console=ttyS0
Initializing CPU#0
Detected 2261.051 MHz processor.
Console: colour VGA+ 80x25
Calibrating delay loop... 4508.87 BogoMIPS
Memory: 498676k/507068k available (1202k kernel code, 8004k reserved, 484k
data, 108k init, 0k highmem)
Dentry cache hash table entries: 65536 (order: 7, 524288 bytes)
Inode cache hash table entries: 32768 (order: 6, 262144 bytes)
Mount cache hash table entries: 512 (order: 0, 4096 bytes)
Buffer cache hash table entries: 32768 (order: 5, 131072 bytes)
Page-cache hash table entries: 131072 (order: 7, 524288 bytes)
CPU: Trace cache: 12K uops, L1 D cache: 8K
CPU: L2 cache: 512K
Intel machine check architecture supported.
Intel machine check reporting enabled on CPU#0.
CPU: After generic, caps: bfebfbff 00000000 00000000 00000000
CPU: Common caps: bfebfbff 00000000 00000000 00000000
CPU: Intel(R) Pentium(R) 4 CPU 2.26GHz stepping 09
Enabling fast FPU save and restore... done.
Enabling unmasked SIMD FPU exception support... done.
Checking 'hlt' instruction... OK.
POSIX conformance testing by UNIFIX
enabled ExtINT on CPU#0
ESR value before enabling vector: 00000000
ESR value after enabling vector: 00000000
ENABLING IO-APIC IRQs
Setting 1 in the phys_id_present_map
...changing IO-APIC physical APIC ID to 1 ... ok.
init IO_APIC IRQs
IO-APIC (apicid-pin) 1-0, 1-22 not connected.
..TIMER: vector=0x31 pin1=2 pin2=0
number of MP IRQ sources: 25.
number of IO-APIC #1 registers: 24.
testing the IO APIC.......................

IO APIC #1......
.... register #00: 01000000
....... : physical APIC id: 01
....... : Delivery Type: 0
....... : LTS : 0
.... register #01: 00178020
....... : max redirection entries: 0017
....... : PRQ implemented: 1
....... : IO APIC version: 0020
.... IRQ redirection table:
NR Log Phy Mask Trig IRR Pol Stat Dest Deli Vect:
00 0ED 0D 1 0 0 0 0 0 2 84
01 001 01 0 0 0 0 0 1 1 39
02 001 01 0 0 0 0 0 1 1 31
03 001 01 0 0 0 0 0 1 1 41
04 001 01 0 0 0 0 0 1 1 49
05 001 01 0 0 0 0 0 1 1 51
06 001 01 0 0 0 0 0 1 1 59
07 001 01 0 0 0 0 0 1 1 61
08 001 01 0 0 0 0 0 1 1 69
09 001 01 1 1 0 0 0 1 1 71
0a 001 01 0 0 0 0 0 1 1 79
0b 001 01 0 0 0 0 0 1 1 81
0c 001 01 0 0 0 0 0 1 1 89
0d 001 01 0 0 0 0 0 1 1 91
0e 001 01 0 0 0 0 0 1 1 99
0f 001 01 0 0 0 0 0 1 1 A1
10 001 01 1 1 0 1 0 1 1 A9
11 001 01 1 1 0 1 0 1 1 B1
12 001 01 1 1 0 1 0 1 1 B9
13 001 01 1 1 0 1 0 1 1 C1
14 001 01 1 1 0 1 0 1 1 C9
15 001 01 1 1 0 1 0 1 1 D1
16 000 00 1 0 0 0 0 0 0 00
17 001 01 1 1 0 1 0 1 1 D9
IRQ to pin mappings:
IRQ0 -> 0:2
IRQ1 -> 0:1
IRQ3 -> 0:3
IRQ4 -> 0:4
IRQ5 -> 0:5
IRQ6 -> 0:6
IRQ7 -> 0:7
IRQ8 -> 0:8
IRQ9 -> 0:9
IRQ10 -> 0:10
IRQ11 -> 0:11
IRQ12 -> 0:12
IRQ13 -> 0:13
IRQ14 -> 0:14
IRQ15 -> 0:15
IRQ16 -> 0:16
IRQ17 -> 0:17
IRQ18 -> 0:18
IRQ19 -> 0:19
IRQ20 -> 0:20
IRQ21 -> 0:21
IRQ23 -> 0:23
.................................... done.
Using local APIC timer interrupts.
calibrating APIC timer ...
..... CPU clock speed is 2260.9938 MHz.
..... host bus clock speed is 132.9995 MHz.
cpu: 0, clocks: 1329995, slice: 664997
CPU0<T0:1329984,T1:664976,D:11,S:664997,C:1329995>
ACPI: Subsystem revision 20040326
ACPI: Interpreter disabled.
PCI: PCI BIOS revision 2.10 entry at 0xf0031, last bus=1
PCI: Using configuration type 1
PCI: Probing PCI hardware
PCI: ACPI tables contain no PCI IRQ routing entries
PCI: Probing PCI hardware (bus 00)
PCI: Ignoring BAR0-3 of IDE controller 00:1f.1
Transparent bridge - Intel Corp. 82801BA/CA/DB/EB PCI Bridge
PCI: Using IRQ router PIIX/ICH [8086/24d0] at 00:1f.0
PCI->APIC IRQ transform: (B0,I2,P0) -> 16
PCI->APIC IRQ transform: (B0,I29,P0) -> 16
PCI->APIC IRQ transform: (B0,I29,P1) -> 19
PCI->APIC IRQ transform: (B0,I29,P2) -> 18
PCI->APIC IRQ transform: (B0,I29,P0) -> 16
PCI->APIC IRQ transform: (B0,I29,P3) -> 23
PCI->APIC IRQ transform: (B0,I31,P0) -> 18
PCI->APIC IRQ transform: (B0,I31,P1) -> 17
PCI->APIC IRQ transform: (B0,I31,P1) -> 17
PCI->APIC IRQ transform: (B1,I0,P0) -> 21
PCI->APIC IRQ transform: (B1,I8,P0) -> 20
isapnp: Scanning for PnP cards...
isapnp: No Plug & Play device found
Linux NET4.0 for Linux 2.4
Based upon Swansea University Computer Society NET3.039
Initializing RT netlink socket
Starting kswapd
VFS: Disk quotas vdquot_6.5.1
pty: 512 Unix98 ptys configured
Serial driver version 5.05c (2001-07-08) with MANY_PORTS SHARE_IRQ
SERIAL_PCI ISAPNP enabled
ttyS00 at 0x03f8 (irq = 4) is a 16550A
Real Time Clock Driver v1.10f
<snip>


System 3 (dmesg)

Linux version 2.4.26-3 (root@development) (Elitecore gcc 3.0.1) #27 Wed Oct
20 13:53:39 IST 2004
BIOS-provided physical RAM map:
BIOS-e820: 0000000000000000 - 000000000009fc00 (usable)
BIOS-e820: 000000000009fc00 - 00000000000a0000 (reserved)
BIOS-e820: 00000000000e0000 - 0000000000100000 (reserved)
BIOS-e820: 0000000000100000 - 000000001fe40000 (usable)
BIOS-e820: 000000001fe40000 - 000000001fe50000 (ACPI data)
BIOS-e820: 000000001fe50000 - 000000001ff00000 (ACPI NVS)
0MB HIGHMEM available.
510MB LOWMEM available.
On node 0 totalpages: 130624
zone(0): 4096 pages.
zone(1): 126528 pages.
zone(2): 0 pages.
Kernel command line: auto BOOT_IMAGE=linux-up ro root=305
BOOT_FILE=/boot/vmlinuz-2.4.26-3 acpi=off
Found and enabled local APIC!
Initializing CPU#0
Detected 1699.990 MHz processor.
Console: colour VGA+ 80x25
Calibrating delay loop... 3394.76 BogoMIPS
Memory: 513836k/522496k available (1254k kernel code, 8272k reserved, 508k
data, 120k init, 0k highmem)
Dentry cache hash table entries: 65536 (order: 7, 524288 bytes)
Inode cache hash table entries: 32768 (order: 6, 262144 bytes)
Mount cache hash table entries: 512 (order: 0, 4096 bytes)
Buffer cache hash table entries: 32768 (order: 5, 131072 bytes)
Page-cache hash table entries: 131072 (order: 7, 524288 bytes)
CPU: Trace cache: 12K uops, L1 D cache: 8K
CPU: L2 cache: 256K
Intel machine check architecture supported.
Intel machine check reporting enabled on CPU#0.
CPU: After generic, caps: 3febfbff 00000000 00000000 00000000
CPU: Common caps: 3febfbff 00000000 00000000 00000000
CPU: Intel(R) Pentium(R) 4 CPU 1.70GHz stepping 03
Enabling fast FPU save and restore... done.
Enabling unmasked SIMD FPU exception support... done.
Checking 'hlt' instruction... OK.
POSIX conformance testing by UNIFIX
enabled ExtINT on CPU#0
ESR value before enabling vector: 00000000
ESR value after enabling vector: 00000000
Using local APIC timer interrupts.
calibrating APIC timer ...
..... CPU clock speed is 1699.9595 MHz.
..... host bus clock speed is 99.9974 MHz.
cpu: 0, clocks: 999974, slice: 499987
CPU0<T0:999968,T1:499968,D:13,S:499987,C:999974>
ACPI: Subsystem revision 20040326
ACPI: Interpreter disabled.
PCI: PCI BIOS revision 2.10 entry at 0xf0031, last bus=1
PCI: Using configuration type 1
PCI: Probing PCI hardware
PCI: ACPI tables contain no PCI IRQ routing entries
PCI: Probing PCI hardware (bus 00)
PCI: Ignoring BAR0-3 of IDE controller 00:1f.1
Transparent bridge - Intel Corp. 82801BA/CA/DB/EB PCI Bridge
PCI: Using IRQ router PIIX/ICH [8086/24c0] at 00:1f.0
PCI: Found IRQ 10 for device 00:1f.1
PCI: Sharing IRQ 10 with 00:1d.2
PCI: Sharing IRQ 10 with 01:02.0
isapnp: Scanning for PnP cards...
isapnp: No Plug & Play device found
Linux NET4.0 for Linux 2.4
Based upon Swansea University Computer Society NET3.039
Initializing RT netlink socket
Starting kswapd
VFS: Disk quotas vdquot_6.5.1
pty: 512 Unix98 ptys configured
Serial driver version 5.05c (2001-07-08) with MANY_PORTS SHARE_IRQ
SERIAL_PCI ISAPNP enabled
ttyS00 at 0x03f8 (irq = 4) is a 16550A
ttyS01 at 0x02f8 (irq = 3) is a 16550A
Real Time Clock Driver v1.10f
<snip>

-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/

\
 
 \ /
  Last update: 2005-03-22 14:08    [W:0.037 / U:0.500 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site