Messages in this thread Patch in this message | | | From | Jiri Olsa <> | Subject | [PATCH] tty: prevent SAK to kill init process | Date | Mon, 1 Nov 2010 19:34:26 +0100 |
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hi,
hitting "Secure Attention Key" on console that's openned by init process, causing panic due to an attempt to kill the init process.
Fixing this by skipping the init process in the loop.
wbr, jirka
Signed-off-by: Jiri Olsa <jolsa@redhat.com> --- drivers/char/tty_io.c | 4 ++++ 1 files changed, 4 insertions(+), 0 deletions(-)
diff --git a/drivers/char/tty_io.c b/drivers/char/tty_io.c index c05c5af..1b85d37 100644 --- a/drivers/char/tty_io.c +++ b/drivers/char/tty_io.c @@ -2746,6 +2746,8 @@ void __do_SAK(struct tty_struct *tty) read_lock(&tasklist_lock); /* Kill the entire session */ do_each_pid_task(session, PIDTYPE_SID, p) { + if (is_global_init(p)) + continue; printk(KERN_NOTICE "SAK: killed process %d" " (%s): task_session(p)==tty->session\n", task_pid_nr(p), p->comm); @@ -2755,6 +2757,8 @@ void __do_SAK(struct tty_struct *tty) * tty open. */ do_each_thread(g, p) { + if (is_global_init(p)) + continue; if (p->signal->tty == tty) { printk(KERN_NOTICE "SAK: killed process %d" " (%s): task_session(p)==tty->session\n", -- 1.7.1
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