Re: Machine livelock with latest (4.99.48) kernel on sparc64

[Rafal Boni <rafal%pobox.com@localhost>]

Rafal Boni wrote:
> I just rebooted my trusty Netra T1 with a shiny new 4.99.48 kernel and
> thought I'd kick off a userland build.  Things seemed to go swimmingly
> for a few minutes, then the machine ground to an un-usable state --
> userland seems to be mostly non-responsive, though the machine is
> pingable, answers a ^T at a tty (well, it seems to be wedged harder
> now.. it did for a while after the apparent lockup), and the disk sounds
> like progress is being made on the build.
> 
> But, I can't get any echo from a tty anymore, and god forbid I should
> want to log in ;)
> 
> Anyone seeing anything similar?  Should I go back to the last-known-good
> kernel for a while? ;)
> 
> Machine is a Netra T1 200 -- UltraSPARC-IIe @ 500 MHz with 512MB RAM.
> 
> Thanks,
> --rafal
> 

BTW, DDB says the following:
db> ps
 PID           PPID     PGRP        UID S   FLAGS LWPS          COMMAND
   WAIT
 16169         1863    16169       1000 2  0x4000    1                w
biowait
 17872         7369     7369          0 2  0x4000    1            atrun
anonget
 7369          7996     7369          0 2  0x4000    1               sh
   wait
 7996           379      379          0 2       0    1             cron
   pipe
 8921         16694      412       1000 2  0x4000    1           nbmake
biowait
 16694        16529      412       1000 2  0x4000    1               sh
   wait
 16529         9391      412       1000 2  0x4000    1           nbmake
   wait
 9391           952      412       1000 2  0x4000    1               sh
   wait
 1863          1387     1863       1000 2  0x4000    1               sh
   wait
 1387          1335     1335       1000 2   0x100    1             sshd
biowait
 1335           234     1335          0 2  0x4101    1             sshd
  netio
 1971             1     1971          0 2  0x4000    1            getty
biowait
 1017           301     1017       1000 2  0x4000    1             tail
 kqread
 952            958      412       1000 2  0x4000    1           nbmake
   wait
 958            895      412       1000 2  0x4000    1               sh
   wait
 895            853      412       1000 2  0x4000    1           nbmake
   wait
 853            871      412       1000 2  0x4000    1               sh
   wait
 871            412      412       1000 2  0x4000    1           nbmake
   wait
 412            301      412       1000 2  0x4000    1               sh
   wait
 301            395      301       1000 2  0x4000    1               sh
   wait
 395            399      399       1000 2   0x100    1             sshd
biowait
 399            234      399          0 2  0x4101    1             sshd
  netio
 387            357      357         12 2  0x4100    1             qmgr
biowait
 392            357      357         12 2  0x4100    1           pickup
biowait
 379              1      379          0 2       0    1             cron
biowait
 343              1      343          0 2       0    1            inetd
 kqread
 357              1      357          0 2  0x4100    1           master
biowait
 234              1      234          0 2       0    1             sshd
biowait
 253              1      253          0 2       0    1             ntpd
  pause
 108              1      108          0 2       0    1          syslogd
biowait
 90               1       90          0 2       0    1         dhclient
 select
 1                0        1          0 2  0x4001    1             init
   wait
>0               -1        0          0 2 0x20002   25           system    *

--rafal