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authorLepton Wu <ytht.net@gmail.com>2007-10-16 01:27:35 -0700
committerLinus Torvalds <torvalds@woody.linux-foundation.org>2007-10-16 09:43:09 -0700
commita24864a1d52a97e345a6bd4862a057f98364d098 (patch)
treea1c07cfa857d818d4a58217fdec40d765d349a4f /arch/v850
parentcb8fa61c2b8b29d422d7310f064d60022f18f89b (diff)
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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>
Diffstat (limited to 'arch/v850')
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