On Sun, Aug 11, 2013 at 7:48 PM, Richard W.M. Jones <rjo...@redhat.com> wrote: > I found by experimentation that killing (SIGTERM) the first vmlinux > process only kills part of a UML virtual machine. There are still > vmlinux processes (or threads?) running. > > Compare the process listings below before and after sending the > SIGTERM signal to the head process (25356). > > Is there a way to reliably kill a single UML VM? Note that "killall > vmlinux" isn't a suitable answer because I don't want to kill every > UML instance on the host. Also using process groups is difficult > because it stops ^C (in the parent process) from killing the VM. > > I'm thinking perhaps naming the processes using umid=<unique> and > iterating over the process table ...
Can you try SIGINT? SIGTERM should work but I fear you found an issue. Why do you need to kill UML? Can't you shutdown it? Thanks, //richard > Rich. > > Before: > > 25356 pts/4 S 0:01 /home/rjones/d/linux/vmlinux mem=500M > initrd=/home/rjones/d/libguestfs/tmp/.guestfs-1000/initrd.25291 init=/init > guestfs_noreboot=1 rw panic=1 TERM=xterm-256color selinux=0 > ubd0=/tmp/test1.img ubd1=/home/rjones/d/libguestfs/tmp/libguestfsUtAePE/cow0 > root=/dev/ubdb ssl3=fd:6 guestfs_channel=/dev/ttyS3 > 25364 pts/4 S 0:00 /home/rjones/d/linux/vmlinux mem=500M > initrd=/home/rjones/d/libguestfs/tmp/.guestfs-1000/initrd.25291 init=/init > guestfs_noreboot=1 rw panic=1 TERM=xterm-256color selinux=0 > ubd0=/tmp/test1.img ubd1=/home/rjones/d/libguestfs/tmp/libguestfsUtAePE/cow0 > root=/dev/ubdb ssl3=fd:6 guestfs_channel=/dev/ttyS3 > 25365 pts/4 S 0:00 /home/rjones/d/linux/vmlinux mem=500M > initrd=/home/rjones/d/libguestfs/tmp/.guestfs-1000/initrd.25291 init=/init > guestfs_noreboot=1 rw panic=1 TERM=xterm-256color selinux=0 > ubd0=/tmp/test1.img ubd1=/home/rjones/d/libguestfs/tmp/libguestfsUtAePE/cow0 > root=/dev/ubdb ssl3=fd:6 guestfs_channel=/dev/ttyS3 > 25366 pts/4 S 0:00 /home/rjones/d/linux/vmlinux mem=500M > initrd=/home/rjones/d/libguestfs/tmp/.guestfs-1000/initrd.25291 init=/init > guestfs_noreboot=1 rw panic=1 TERM=xterm-256color selinux=0 > ubd0=/tmp/test1.img ubd1=/home/rjones/d/libguestfs/tmp/libguestfsUtAePE/cow0 > root=/dev/ubdb ssl3=fd:6 guestfs_channel=/dev/ttyS3 > 25367 pts/4 t 0:00 /home/rjones/d/linux/vmlinux mem=500M > initrd=/home/rjones/d/libguestfs/tmp/.guestfs-1000/initrd.25291 init=/init > guestfs_noreboot=1 rw panic=1 TERM=xterm-256color selinux=0 > ubd0=/tmp/test1.img ubd1=/home/rjones/d/libguestfs/tmp/libguestfsUtAePE/cow0 > root=/dev/ubdb ssl3=fd:6 guestfs_channel=/dev/ttyS3 > 25388 pts/4 t 0:00 /home/rjones/d/linux/vmlinux mem=500M > initrd=/home/rjones/d/libguestfs/tmp/.guestfs-1000/initrd.25291 init=/init > guestfs_noreboot=1 rw panic=1 TERM=xterm-256color selinux=0 > ubd0=/tmp/test1.img ubd1=/home/rjones/d/libguestfs/tmp/libguestfsUtAePE/cow0 > root=/dev/ubdb ssl3=fd:6 guestfs_channel=/dev/ttyS3 > 25437 pts/4 t 0:00 /home/rjones/d/linux/vmlinux mem=500M > initrd=/home/rjones/d/libguestfs/tmp/.guestfs-1000/initrd.25291 init=/init > guestfs_noreboot=1 rw panic=1 TERM=xterm-256color selinux=0 > ubd0=/tmp/test1.img ubd1=/home/rjones/d/libguestfs/tmp/libguestfsUtAePE/cow0 > root=/dev/ubdb ssl3=fd:6 guestfs_channel=/dev/ttyS3 > > After: > > 25364 pts/4 S 0:00 /home/rjones/d/linux/vmlinux mem=500M > initrd=/home/rjones/d/libguestfs/tmp/.guestfs-1000/initrd.25291 init=/init > guestfs_noreboot=1 rw panic=1 TERM=xterm-256color selinux=0 > ubd0=/tmp/test1.img ubd1=/home/rjones/d/libguestfs/tmp/libguestfsUtAePE/cow0 > root=/dev/ubdb ssl3=fd:6 guestfs_channel=/dev/ttyS3 > 25365 pts/4 S 0:00 /home/rjones/d/linux/vmlinux mem=500M > initrd=/home/rjones/d/libguestfs/tmp/.guestfs-1000/initrd.25291 init=/init > guestfs_noreboot=1 rw panic=1 TERM=xterm-256color selinux=0 > ubd0=/tmp/test1.img ubd1=/home/rjones/d/libguestfs/tmp/libguestfsUtAePE/cow0 > root=/dev/ubdb ssl3=fd:6 guestfs_channel=/dev/ttyS3 > 25366 pts/4 S 0:00 /home/rjones/d/linux/vmlinux mem=500M > initrd=/home/rjones/d/libguestfs/tmp/.guestfs-1000/initrd.25291 init=/init > guestfs_noreboot=1 rw panic=1 TERM=xterm-256color selinux=0 > ubd0=/tmp/test1.img ubd1=/home/rjones/d/libguestfs/tmp/libguestfsUtAePE/cow0 > root=/dev/ubdb ssl3=fd:6 guestfs_channel=/dev/ttyS3 > > > > -- > Richard Jones, Virtualization Group, Red Hat http://people.redhat.com/~rjones > virt-df lists disk usage of guests without needing to install any > software inside the virtual machine. Supports Linux and Windows. > http://people.redhat.com/~rjones/virt-df/ > > ------------------------------------------------------------------------------ > Get 100% visibility into Java/.NET code with AppDynamics Lite! > It's a free troubleshooting tool designed for production. > Get down to code-level detail for bottlenecks, with <2% overhead. > Download for free and get started troubleshooting in minutes. > http://pubads.g.doubleclick.net/gampad/clk?id=48897031&iu=/4140/ostg.clktrk > _______________________________________________ > User-mode-linux-devel mailing list > User-mode-linux-devel@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/user-mode-linux-devel -- Thanks, //richard ------------------------------------------------------------------------------ Get 100% visibility into Java/.NET code with AppDynamics Lite! It's a free troubleshooting tool designed for production. Get down to code-level detail for bottlenecks, with <2% overhead. Download for free and get started troubleshooting in minutes. http://pubads.g.doubleclick.net/gampad/clk?id=48897031&iu=/4140/ostg.clktrk _______________________________________________ User-mode-linux-devel mailing list User-mode-linux-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/user-mode-linux-devel
