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SubjectRe: strange timestamp in dmesg
On Thu, 5 Jun 2008 14:54:07 +0300 "Denys Fedoryshchenko" <denys@visp.net.lb> wrote:

> I notice that timestamp shifting back in dmesg.
> Probably it is because machine is dual CPU opteron. I am not sure that such
> behaviour is good, and i think even dangerous, and maybe affect something else.
>
>
> Here is dmesg example
> [ 7.065265] sky2 eth1: enabling interface
> [ 7.093844] nf_conntrack version 0.5.0 (16384 buckets, 65536 max)
> [ 8.308842] Fusion MPT base driver 3.04.06
> [ 8.308850] Copyright (c) 1999-2007 LSI Corporation
> [ 7.719943] Fusion MPT SAS Host driver 3.04.06
> [ 7.773135] Fusion MPT SPI Host driver 3.04.06
> [ 7.773196] ACPI: PCI Interrupt 0000:02:05.0[A] -> GSI 26 (level, low) ->
> IRQ 26
> [ 7.773233] mptbase: ioc0: Initiating bringup
> [ 7.983821] ioc0: LSI53C1020A A1: Capabilities={Initiator}
> [ 8.051145] scsi1 : ioc0: LSI53C1020A A1, FwRev=01032700h, Ports=1,
> MaxQ=222, IRQ=26
> [ 9.730853] scsi 1:0:0:0: Direct-Access SEAGATE ST373207LW 0004
> PQ: 0 ANSI: 3
> [ 9.730853] target1:0:0: Beginning Domain Validation
> [ 9.690641] target1:0:0: Ending Domain Validation
> [ 10.586005] target1:0:0: FAST-160 WIDE SCSI 320.0 MB/s DT IU QAS RTI
> WRFLOW PCOMP (6.25 ns, offset 63)
> [ 9.622284] sd 1:0:0:0: [sdb] 143374744 512-byte hardware sectors (73408 MB)
> [ 9.624360] sd 1:0:0:0: [sdb] Write Protect is off
> [ 9.624360] sd 1:0:0:0: [sdb] Mode Sense: ab 00 10 08
> [ 9.695636] sd 1:0:0:0: [sdb] Write cache: enabled, read cache: enabled,
> supports DPO and FUA
> [ 9.759418] sd 1:0:0:0: [sdb] 143374744 512-byte hardware sectors (73408 MB)
> [ 9.630037] sd 1:0:0:0: [sdb] Write Protect is off
> [ 9.630037] sd 1:0:0:0: [sdb] Mode Sense: ab 00 10 08
> [ 9.700212] sd 1:0:0:0: [sdb] Write cache: enabled, read cache: enabled,
> supports DPO and FUA
> [ 9.700212] sdb: sdb1 sdb2
> [ 9.769373] sd 1:0:0:0: [sdb] Attached SCSI disk
> [ 9.774370] scsi 1:0:1:0: Direct-Access SEAGATE ST373207LW 0004
> PQ: 0 ANSI: 3
> [ 9.774393] target1:0:1: Beginning Domain Validation
> [ 9.733244] target1:0:1: Ending Domain Validation
> [ 9.733289] target1:0:1: FAST-160 WIDE SCSI 320.0 MB/s DT IU QAS RTI
> WRFLOW PCOMP (6.25 ns, offset 63)
> [ 10.631379] sd 1:0:1:0: [sdc] 143374744 512-byte hardware sectors (73408 MB)
> [ 10.632811] sd 1:0:1:0: [sdc] Write Protect is off
> [ 10.632819] sd 1:0:1:0: [sdc] Mode Sense: ab 00 10 08
> [ 9.671056] sd 1:0:1:0: [sdc] Write cache: enabled, read cache: enabled,
> supports DPO and FUA
> [ 9.801761] sd 1:0:1:0: [sdc] 143374744 512-byte hardware sectors (73408 MB)
> [ 9.673388] sd 1:0:1:0: [sdc] Write Protect is off
> [ 9.673395] sd 1:0:1:0: [sdc] Mode Sense: ab 00 10 08
> [ 9.806210] sd 1:0:1:0: [sdc] Write cache: enabled, read cache: enabled,
> supports DPO and FUA
> [ 9.806220] sdc: sdc1
> [ 9.682136] sd 1:0:1:0: [sdc] Attached SCSI disk
> [ 13.786405] SGI XFS with large block numbers, no debug enabled
> [ 13.633457] XFS mounting filesystem sdb2
> [ 13.724345] Starting XFS recovery on filesystem: sdb2 (logdev: internal)
> [ 14.251356] Ending XFS recovery on filesystem: sdb2 (logdev: internal)
> [ 15.379298] XFS mounting filesystem sdc1
> [ 15.468255] Starting XFS recovery on filesystem: sdc1 (logdev: internal)
> [ 14.514314] Ending XFS recovery on filesystem: sdc1 (logdev: internal)
> [ 14.767260] warning: `squid' uses 32-bit capabilities (legacy support in use)
> [ 17.589751] e1000: eth0: e1000_watchdog: NIC Link is Up 1000 Mbps Full
> Duplex, Flow Control: RX/TX
>

whoa, that's weird. We've seen timestamps jump forward a single hop of
~100000 seconds, but that's all over the place.

Which kernel version is this, and in which kernel did it start happening?

Thanks.


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