Re: Panic on a SPARC20

Use a pink erasor to clean the connectors of your memory.

I'm not joking.

> So I decided to dust down my SPARC20 & fire it up, I installed the
> latest sparc snapshot available yesterday (8th of June) which all went
> well & I left if it running two instances of scp which were copy the
> ports & src directory from another host only to return to the office
> today with this machine sitting at the ddb prompt, It's currently very
> hot here so it could very well just be the system is overheating,
> unfortunately I don't know how to work out what is happening from the
> output of ddb so I'm posting it here for feedback in case there is
> something else which is clearly wrong.
> 
> Sevan
> 
> OpenBSD 4.7-current (GENERIC) #14: Tue Jun  8 15:39:24 MDT 2010
>     [email protected]:/usr/src/sys/arch/sparc/compile/GENERIC
> real mem = 267837440 (255MB)
> avail mem = 254496768 (242MB)
> mainbus0 at root: SUNW,SPARCstation-20
> cpu0 at mainbus0: RT620/625 @ 100 MHz, on-chip FPU
> cpu0: 256K byte write-back, 64 bytes/line, sw flush cache enabled
> cpu at mainbus0 not configured
> obio0 at mainbus0
> clock0 at obio0 addr 0xf1200000: mk48t08 (eeprom)
> timer0 at obio0 addr 0xf1300000 delay constant 48
> zs0 at obio0 addr 0xf1100000 pri 12, softpri 6
> zstty0 at zs0 channel 0: console
> zstty1 at zs0 channel 1
> zs1 at obio0 addr 0xf1000000 pri 12, softpri 6
> zskbd0 at zs1 channel 0: no keyboard
> zsms0 at zs1 channel 1
> wsmouse0 at zsms0 mux 0
> fdc0 at obio0 addr 0xf1700000 pri 11, softpri 4: chip 82077
> fd0 at fdc0 drive 0: 1.44MB 80 cyl, 2 head, 18 sec
> auxreg0 at obio0 addr 0xf1800000
> power0 at obio0 addr 0xf1a01000
> cgfourteen0 at obio0 addr 0x9c000000 pri 8: 8MB, rev 3.0, 1152x900
> wsdisplay0 at cgfourteen0 mux 1
> wsdisplay0: screen 0 added (std, sun emulation)
> iommu0 at mainbus0 ioaddr 0xe0000000: version 0x1/0x1, page-size 4096,
> range 64MB
> sbus0 at iommu0: clock = 25 MHz
> dma0 at sbus0 slot 15 offset 0x400000: rev 2
> esp0 at dma0 offset 0x800000 pri 4: ESP200, 40MHz
> scsibus0 at esp0: 8 targets, initiator 7
> sd0 at scsibus0 targ 1 lun 0: <QUANTUM, ATLAS IV 9 SCA, 0B0B> SCSI3
> 0/direct fixed
> sd0: 8761MB, 512 bytes/sec, 17942584 sec total
> sd1 at scsibus0 targ 3 lun 0: <SGI, ST39204LC, 3126> SCSI3 0/direct fixed
> sd1: 8682MB, 512 bytes/sec, 17781520 sec total
> cd0 at scsibus0 targ 6 lun 0: <TOSHIBA, XM-4101TASUNSLCD, 1084> SCSI2
> 5/cdrom removable
> ledma0 at sbus0 slot 15 offset 0x400010: rev 2
> le0 at ledma0 offset 0xc00000 pri 6: address 08:00:20:20:c4:d3
> le0: 16 receive buffers, 4 transmit buffers
> bpp0 at sbus0 slot 15 offset 0x4800000: DMA2
> "SUNW,DBRIe" at sbus0 slot 14 offset 0x10000 not configured
> hme0 at sbus0 slot 2 offset 0x8c00000 pri 7: address 08:00:20:20:c4:d3 rev 34
> nsphy0 at hme0 phy 1: DP83840 10/100 PHY, rev. 1
> vscsi0 at root
> scsibus1 at vscsi0: 256 targets
> softraid0 at root
> bootpath: /iommu@f,e0000000/sbus@f,e0001000/espdma@f,400000/esp@f,800000/sd@1,0
> root on sd0a swap on sd0b dump on sd0b
> 
> 
> show panic
> nmi
> 
> show registers
> psr           0x1e0000c5
> pc            0xf8276fa8        Debugger+0x4
> npc           0xf8276fac        Debugger+0x8
> y                      0
> wim                 0x30
> g0                     0
> g1             0xd3ecbd7
> g2                 0x8a8
> g3                 0x909
> g4            0x7f521cc3
> g5                     0
> g6                     0
> g7             0xe292448
> o0                   0x1
> o1            0xf82f9800        memname+0x238
> o2            0xf82e79b0        defheight+0x1a81c
> o3            0xf82f0e78        intstack+0x3b38
> o4            0xf82f0e80        intstack+0x3b40
> o5                     0
> o6            0xf82f0dc8        intstack+0x3a88
> o7            0xf80cc11c        panic+0x98
> l0            0xf8309950        edata+0x2dc
> l1            0xf8356000        pool_allocator_large+0x990
> l2            0xf82f0e78        intstack+0x3b38
> l3            0xf836d400        uvm_aobj_pool+0x10
> l4            0xf8008df0        sparc_interrupt44c+0x454
> l5                     0
> l6                     0
> l7             0xe292448
> i0            0xf82e79b0        defheight+0x1a81c
> i1                 0x100
> i2            0xf82e7940        defheight+0x1a7ac
> i3            0xf82e78f8        defheight+0x1a764
> i4                     0
> i5                     0
> i6            0xf82f0e30        intstack+0x3af0
> i7            0xf826ad60        nmi_hard+0x80
> Debugger+0x4:   jmpl            [%o7 + 0x8], %g0
> 
> 
> trace
> nmi_hard(0xfe014000, 0x8000, 0xf420000, 0x20, 0xf7fe2208, 0x0) at nmi_hard+0x80
> 
> sparc_interrupt44c(0xfe014000, 0x8000, 0x5e, 0x0, 0xf7fe2318, 0xf85b56f5) at sp
> arc_interrupt44c+0x414
> end(0x304ac84c, 0x909ebb11, 0x2f5873a3, 0x784604df, 0x1824f9f8, 0x16405e03) at 0
> xf859684d
> 
> 
> ps
>    PID   PPID   PGRP    UID  S       FLAGS  WAIT          COMMAND
>  32459  30213  30213      0  3      0x4082  select        ssh
>  30213   8918  30213      0  3      0x4082  poll          scp
>   8918  10031   8918      0  3      0x4082  pause         ksh
>  10031  17282  10031   1000  3      0x4082  pause         ksh
> *18997  14084  14084      0  7      0x4002                ssh
>  14084  29261  14084      0  3      0x4082  piperd        scp
>  29261  29529  29261      0  3      0x4082  pause         ksh
>  29529  17282  29529   1000  3      0x4082  pause         ksh
>  17282      1  17282   1000  2           0                tmux
>  11810      1  11810      0  3      0x4082  ttyin         getty
>  25320      1  25320      0  3     0x40180  select        sendmail
>   8829      1   8829      0  3        0x80  select        cron
>  32598      1  32598      0  3       0x180  select        inetd
>  10907      1  10907      0  3        0x80  select        sshd
>  30261  21134  32553     83  3       0x180  poll          ntpd
>  21134  32553  32553     83  3       0x180  poll          ntpd
>  32553      1  32553      0  3        0x80  poll          ntpd
>  32426  30072  30072     74  3       0x180  bpf           pflogd
>  30072      1  30072      0  3        0x80  netio         pflogd
>  11451   8289   8289     73  2       0x180                syslogd
>   8289      1   8289      0  3        0x88  netio         syslogd
>     11      0      0      0  3    0x100200  bored         crypto
>     10      0      0      0  3    0x100200  aiodoned      aiodoned
>      9      0      0      0  3    0x100200  syncer        update
>      8      0      0      0  3    0x100200  cleaner       cleaner
>      7      0      0      0  3    0x100200  reaper        reaper
>      6      0      0      0  3    0x100200  pgdaemon      pagedaemon
>      5      0      0      0  3    0x100200  pftm          pfpurge
>      4      0      0      0  3    0x100200  bored         syswq
>      3      0      0      0  3  0x40100200                idle0
>      2      0      0      0  3    0x100200  kmalloc       kmthread
>      1      0      1      0  3      0x4080  wait          init
>      0     -1      0      0  3     0x80200  scheduler     swapper