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- Organization: Sophomore, Math/Computer Science, Carnegie Mellon, Pittsburgh, PA
- Path: sparky!uunet!cis.ohio-state.edu!news.sei.cmu.edu!fs7.ece.cmu.edu!crabapple.srv.cs.cmu.edu!andrew.cmu.edu!fl0p+
- Newsgroups: comp.os.linux
- Message-ID: <of=iQIy00VBCA4IqYu@andrew.cmu.edu>
- Date: Wed, 16 Dec 1992 03:21:40 -0500
- From: Frank T Lofaro <fl0p+@andrew.cmu.edu>
- Subject: BUG REPORT (strace -p 1 messes up process tree) under 0.98.6
- Lines: 19
-
- I don't know if this is still exists under 0.99, but I haven't had
- the time to install it. I just wanted to make sure that if this bug
- still exists in 0.99 that I could post about it so people know. (I will
- be off the net for a month for vacation very soon). Anyway, strace -p 1
- (to trace init), and then exiting strace results in the process tree
- getting hosed. I get a lot of kernel messgaes about a processes parent
- link pointing to self (both pid 0, and very high numbered (bogus) pids,
- i.e. like 10 digits long, are mentioned). It keeps complaining until I
- reboot. I could still run X, etc, but one time when I did, it got in an
- infinite loop after I quit (everything hung, it was constantly scrolling
- these warnings, and the hard disk light was on but flickering, as if the
- system was execing continously). I had to cold reboot that time. Usually
- all I get is those warnings, but things still work, but those warnings
- seem to indicate to me something is really wrong, so I don't trust it
- too much. Anyway, the only time I see it is after I detach PID 1 from
- strace (I wonder what would happen if one could get strace to attach to
- and detach from PID 0, I haven't tried since strace prevents it).
-
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