The patch titled
Magic SysRq SAK does nothing on serial consoles
has been added to the -mm tree. Its filename is
magic-sysrq-sak-does-nothing-on-serial-consoles.patch
See http://www.zip.com.au/~akpm/linux/patches/stuff/added-to-mm.txt to find
out what to do about this
------------------------------------------------------
Subject: Magic SysRq SAK does nothing on serial consoles
From: Simon Tatham <anakin@xxxxxxxxx>
Make sysrq-K work on serial console by passing in the tty.
[akpm: I don't think port->info can be NULL]
Cc: Russell King <rmk@xxxxxxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxx>
---
include/linux/serial_core.h | 2 +-
1 files changed, 1 insertion(+), 1 deletion(-)
diff -puN include/linux/serial_core.h~magic-sysrq-sak-does-nothing-on-serial-consoles include/linux/serial_core.h
--- a/include/linux/serial_core.h~magic-sysrq-sak-does-nothing-on-serial-consoles
+++ a/include/linux/serial_core.h
@@ -414,7 +414,7 @@ uart_handle_sysrq_char(struct uart_port
#ifdef SUPPORT_SYSRQ
if (port->sysrq) {
if (ch && time_before(jiffies, port->sysrq)) {
- handle_sysrq(ch, regs, NULL);
+ handle_sysrq(ch, regs, port->info ? port->info->tty : NULL);
port->sysrq = 0;
return 1;
}
_
Patches currently in -mm which might be from anakin@xxxxxxxxx are
magic-sysrq-sak-does-nothing-on-serial-consoles.patch
-
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