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標題: 關于dmesg指令執(zhí)行結果的問題 [打印本頁]

作者: tiantangxiao 時間: 2014-04-04 10:37
標題: 關于dmesg指令執(zhí)行結果的問題
各位大俠好：
HP小型機執(zhí)行dmesg后查看內存信息顯示不出物理內存，請問是什么原因？
顯示結果如下：
scp2a#[/]dmesg
Apr  4 10:26
...
            DSAtbl->host_iocb_index: 0
            DSAtbl->host_iocb_addr: 5800
      scratch_lsp: 0x0000000000000000
      c8xx_iocb [ffffffff91fdeb00]:
            16005d80 0040007f 00000000 00000000
            00000000 00005d60 00000000 00005d68
      Pre-DSP script dump [ffffffff91fde1a0]:
            91fde264 c1000020 00005d40 91fdeb00
            f1340004 00000004 74364000 00000000
      Script dump [ffffffff91fde1c0]:
            98040000 0000000f f1700004 0000000c
            e0720001 91fde1e2 78492f00 00000000
      NCR chip register dump for: 0x400200a
      00:  SCNTL3: 9f SCNTL2: 00 SCNTL1: 00 SCNTL0: da
      04:  GPREG: 0b SDID:    00 SXFER: 1f SCID:    47
      08:  SBCL:    00 SSID:    80 SOCL:    00 SFBR:    40
      0c:  SSTAT2: 0a SSTAT1: 0f SSTAT0: 00 DSTAT: 80
      10:  DSA:    91fdeb00
      14:  MBOX1: 00 MBOX0: 00 ISTAT1: 00 ISTAT: 00
      1c:  TEMP:    00001000
      24:  DCMDDBC:  9c040000
      28:  DNAD:    91fde1c0
      2c:  DSP:    91fde1c8
      30:  DSPS:    0000000f
      34:  SCRATCHA: 0040007f
      38:  DCNTL: a1 DWT:    00 DIEN:    7f DMODE: 4c
      3c:  ADDER: 91fde1d7
      40:  SIST1: 00 SIST0: 00 SIEN1: 97 SIEN0: 8f
      44:  GPCNTL: 2f MACNTL: 00 SWIDE: 00 SLPAR: 00
      48:  RESPID1:  00 RESPID0:  80 STIME1: 00 STIME0: fc
      4c:  STEST3: 80 STEST2: 00 STEST1: 0c STEST0: 76
      50:  RESV50: 00 RESV51: c0 SIDL1: 00 SIDL0: 00
      54:  CCNTL1: 01 CCNTL0: 01 SODL1: 00 SODL0: 00
      58:  RESV58: 00 RESV59: 00 SBDL1: 00 SBDL0: 00
      5c:  SCRATCHB: 00000000
      60:  SCRATCHC: c0ffffff
      64:  SCRATCHD: 00005d7c
      68:  SCRATCHE: 91fdec00
      6c:  SCRATCHF: 00000000
      70:  SCRATCHG: 9f001f16
      74:  SCRATCHH: 00005600
      78:  SCRATCHI: 09819f1f
      7c:  SCRATCHJ: 00000000
      bc:  SCNTL4: 80
      PCI configuration register dump:
                  Command: 0157
            Latency Timer: ff
         Cache Line Size: 10
LVM: vg[3] pv[0] Bad MCR, resyncing all LVs on the PV

SCSI: Reset detected -- path: 0/8/0/0

SCSI:  -- lbolt: 462728, bus: 4
            lbp->state: 30008
            lbp->offset: ffffffff
            lbp->nominalOffset: 0
            lbp->Cmdindex: 0
            lbp->last_nexus_index: 0
            lbp->nexus_index: 0
            uCmdSent: 0 uNexus_offset: 0
      last lbp->puStatus [0000000040a25600]:
            00000000 00000000 00000000 00000000
      next lbp->puStatus [0000000040a257f0]:
            0003007e 0003007e 0003007e 0003007e
      From most recent interrupt:
            ISTAT: 02, SIST0: 02, SIST1: 00, DSTAT: 80, DSPS: 00000000
      lsp: 0x0000000000000000
            DSAtbl->host_iocb_index: 0
            DSAtbl->host_iocb_addr: 5800
      scratch_lsp: 0x0000000000000000
      c8xx_iocb [ffffffff91fdeb00]:
            04005900 0040007f 00000000 00000000
            00000000 000058e0 00000000 000058e8
      Pre-DSP script dump [ffffffff91fde1a0]:
            91fde264 c1000020 000058c0 91fdeb00
            f1340004 00000004 74364000 00000000
      Script dump [ffffffff91fde1c0]:
            98040000 0000000f f1700004 0000000c
            e0720001 91fde1e2 78492f00 00000000
      NCR chip register dump for: 0x400200a
      00:  SCNTL3: 9f SCNTL2: 00 SCNTL1: 00 SCNTL0: da
      04:  GPREG: 0b SDID:    00 SXFER: 1f SCID:    47
      08:  SBCL:    00 SSID:    80 SOCL:    00 SFBR:    40
      0c:  SSTAT2: 0a SSTAT1: 0f SSTAT0: 00 DSTAT: 80
      10:  DSA:    91fdeb00
      14:  MBOX1: 00 MBOX0: 00 ISTAT1: 00 ISTAT: 00
      1c:  TEMP:    00001000
      24:  DCMDDBC:  9c040000
      28:  DNAD:    91fde1c0
      2c:  DSP:    91fde1c8
      30:  DSPS:    0000000f
      34:  SCRATCHA: 0040007f
      38:  DCNTL: a1 DWT:    00 DIEN:    7f DMODE: 4c
      3c:  ADDER: 91fde1d7
      40:  SIST1: 00 SIST0: 00 SIEN1: 97 SIEN0: 8f
      44:  GPCNTL: 2f MACNTL: 00 SWIDE: 00 SLPAR: 00
      48:  RESPID1:  00 RESPID0:  80 STIME1: 00 STIME0: fc
      4c:  STEST3: 80 STEST2: 00 STEST1: 0c STEST0: 76
      50:  RESV50: 00 RESV51: c0 SIDL1: 00 SIDL0: 00
      54:  CCNTL1: 01 CCNTL0: 01 SODL1: 00 SODL0: 00
      58:  RESV58: 00 RESV59: 00 SBDL1: 00 SBDL0: 00
      5c:  SCRATCHB: 00000000
      60:  SCRATCHC: c0ffffff
      64:  SCRATCHD: 000058fc
      68:  SCRATCHE: 91fdec00
      6c:  SCRATCHF: 00000000
      70:  SCRATCHG: 02011f04
      74:  SCRATCHH: 00005600
      78:  SCRATCHI: 09819f1f
      7c:  SCRATCHJ: 00000000
      bc:  SCNTL4: 80
      PCI configuration register dump:
                  Command: 0157
            Latency Timer: ff
         Cache Line Size: 10

作者: lbseraph 時間: 2014-04-04 11:02
回復 1# tiantangxiao

dmesg只是顯示buffer里面的最新信息，但這個容量有限，如果開機后不斷有新的信息進來，那么以前老的內容就無法看到。所以碰到這種情況再需要看內存大小的話，用cstm或machinfo之類的命令吧。syslog.log的剛開機部分內容還能看到的話你也可以在里面找到。

作者: lgatuk 時間: 2014-04-15 10:33
師傅 syslog。log里面肯定能看到吧？

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