linux/arch/um/os-Linux
Lepton Wu a24864a1d5 uml: definitively kill subprocesses on panic
In a stock 2.6.22.6 kernel, poweroff a user mode linux guest (2.6.22.6 running
in skas0 mode) will halt the host linux.  I think the reason is the kernel
thread abort because of a bug.  Then the sys_reboot in process of user mode
linux guest is not trapped by the user mode linux kernel and is executed by
host.  I think it is better to make sure all of our children process to quit
when user mode linux kernel abort.

[ jdike - the kernel process needs to ignore SIGTERM, plus the waitpid/kill
loop is needed to make sure that all of our children are dead before the
kernel exits ]

Signed-off-by: Lepton Wu <ytht.net@gmail.com>
Signed-off-by: Jeff Dike <jdike@linux.intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-10-16 09:43:09 -07:00
..
drivers uml: network driver MTU cleanups 2007-10-16 09:43:08 -07:00
include Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
skas uml: definitively kill subprocesses on panic 2007-10-16 09:43:09 -07:00
sys-i386 uml: style fixes in FP code 2007-10-16 09:43:07 -07:00
sys-x86_64 uml: throw out CONFIG_MODE_TT 2007-10-16 09:43:05 -07:00
aio.c uml: userspace files should call libc directly 2007-10-16 09:43:06 -07:00
elf_aux.c [PATCH] uml: host VDSO fix 2007-03-01 14:53:38 -08:00
execvp.c [PATCH] uml: make execvp safe for our usage 2006-11-25 13:28:34 -08:00
file.c uml: userspace files should call libc directly 2007-10-16 09:43:06 -07:00
helper.c uml: userspace files should call libc directly 2007-10-16 09:43:06 -07:00
irq.c uml: eliminate SIGALRM 2007-10-16 09:43:08 -07:00
main.c uml: eliminate SIGALRM 2007-10-16 09:43:08 -07:00
Makefile uml: style fixes pass 1 2007-10-16 09:43:05 -07:00
mem.c uml: userspace files should call libc directly 2007-10-16 09:43:06 -07:00
process.c uml: eliminate SIGALRM 2007-10-16 09:43:08 -07:00
registers.c uml: floating point signal delivery fixes 2007-10-16 09:43:07 -07:00
sigio.c uml: Eliminate kernel allocator wrappers 2007-07-16 09:05:38 -07:00
signal.c uml: eliminate SIGALRM 2007-10-16 09:43:08 -07:00
start_up.c uml: userspace files should call libc directly 2007-10-16 09:43:06 -07:00
time.c uml: use *SEC_PER_*SEC constants 2007-10-16 09:43:08 -07:00
tls.c uml: style fixes pass 1 2007-10-16 09:43:05 -07:00
trap.c uml: eliminate SIGALRM 2007-10-16 09:43:08 -07:00
tty.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
tty_log.c uml: convert libc layer to call read and write 2007-05-07 12:13:03 -07:00
uaccess.c uml: get rid of do_longjmp 2007-10-16 09:43:05 -07:00
umid.c uml: style fixes pass 3 2007-10-16 09:43:05 -07:00
user_syms.c uml: fix string exporting on UML/i386 2007-07-24 12:24:58 -07:00
util.c uml: definitively kill subprocesses on panic 2007-10-16 09:43:09 -07:00