[haiku-bugs] Re: [Haiku] #5611: Impossible to terminate a blocked process
- From: "bonefish" <trac@xxxxxxxxxxxx>
- Date: Mon, 22 Mar 2010 00:16:09 -0000
#5611: Impossible to terminate a blocked process
---------------------------+------------------------------------------------
Reporter: fano | Owner: axeld
Type: bug | Status: new
Priority: normal | Milestone: R1
Component: System/Kernel | Version: R1/alpha1
Keywords: | Blockedby:
Platform: All | Blocking:
---------------------------+------------------------------------------------
Changes (by bonefish):
* owner: nobody => axeld
* priority: high => normal
* component: - General => System/Kernel
Comment:
Can we please not mix things in this ticket. That a process cannot be
killed (as opposed to quit) is an unacceptable kernel or driver bug. Let's
focus on that. Detecting unresponsive applications is something else
entirely and more of a missing feature (though applications -- at least
the ones included in Haiku simply shouldn't hang in the first place). Feel
free to open a new ticket for that, if there is none yet.
You have set the version to "R1/alpha1". Is the problem reproducible with
a more recent revision? A more detailed description of how your situation
can be reproduced would be appreciated. At least I've never seen VLC or
MediaPlayer hang in a way that they couldn't be killed (though,
admittedly, I haven't used them very often). Stippi brought up UDF, though
I can't see any mention of it in the ticket description. Were you playing
back (media files from) a DVD?
After you've established that a process cannot be killed (BTW, one can
kill also using ProcessController (via the "Threads and CPU usage" menu))
a stack trace of all threads of that application would be helpful for
analyzing the problem. You can get those in the kernel debugger: Enter it
via Alt-SysReq-D. Use the "teams" command to get a list of all running
teams and find the ID of team in question. Use "threads <team ID>" to get
the list of threads of the team. Use "bt <thread ID>" to get a stack trace
for each thread. Leave the kernel debugger with the "co" command. After a
few seconds all the output from the kernel debugger should have made it to
/var/log/syslog. Append the file to the ticket. Thanks!
--
Ticket URL: <http://dev.haiku-os.org/ticket/5611#comment:4>
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