MIPS: Use force_sig when handling address errors.

When init is started it is SIGNAL_UNKILLABLE.  If it were to get an
address error, we would try to send it SIGBUS, but it would be ignored
and the faulting instruction restarted.  This results in an endless
loop.

We need to use force_sig() instead so it will actually die and give us
some useful information.

Reported-by: Florian Fainelli <florian@openwrt.org>
Signed-off-by: David Daney <ddaney@caviumnetworks.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
This commit is contained in:
David Daney 2009-05-05 12:49:47 -07:00 коммит произвёл Ralf Baechle
Родитель d0ce9a5a47
Коммит a6d5ff04e8
1 изменённых файлов: 3 добавлений и 3 удалений

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@ -482,19 +482,19 @@ fault:
return;
die_if_kernel("Unhandled kernel unaligned access", regs);
send_sig(SIGSEGV, current, 1);
force_sig(SIGSEGV, current);
return;
sigbus:
die_if_kernel("Unhandled kernel unaligned access", regs);
send_sig(SIGBUS, current, 1);
force_sig(SIGBUS, current);
return;
sigill:
die_if_kernel("Unhandled kernel unaligned access or invalid instruction", regs);
send_sig(SIGILL, current, 1);
force_sig(SIGILL, current);
}
asmlinkage void do_ade(struct pt_regs *regs)