Hung process (pfiles cannot control process)

From: Vikas S (vikas_soolapani@indiatimes.com)
Date: Thu Oct 17 2002 - 01:33:37 EDT

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I forgot to mention following message.

  # /usr/proc/bin/pfiles 18938
  pfiles: expected REQUESTED stop, pid# 18938 (0,0)
  pfiles: cannot control process: 18938

  (Above hung process is Interscan Viruswall smtpd
which is working perfectly in two other similar
systems).

Thanks,
Vikas

"Vikas S"<vikas_soolapani@indiatimes.com> wrote:

All,

    I am unable to truss the hung sendmail (Interscan
Viruswall) process but can kill it ie, truss gives no
output. Two other exactly similar systems are working
with load avg. 2 whereas in this machine load goes
upto 11. Also, "top" shows high "kernel" activity
(~60%).

After going through the following for hung process,
adb -k /dev/ksyms /dev/mem

  WCHAN_VALUE$<mutex gives me
  0x691fd075: unknown lock type 1f

  Can you please give some inputs.

5.6 Generic_105181-26 sun4u sparc SUNW,Ultra-4

Thanks,
Vikas

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