提交 4b3c86a7 编写于 作者: I Ivan Kokshaysky 提交者: Linus Torvalds

[PATCH] alpha: fix kernel panic during SysRq-b

acquire_console_sem() does BUG() in interrupt context now, as in the case
of SysRq-b.

Cc: Richard Henderson <rth@twiddle.net>
Signed-off-by: NAndrew Morton <akpm@osdl.org>
Signed-off-by: NLinus Torvalds <torvalds@osdl.org>
上级 720b9429
......@@ -127,6 +127,10 @@ common_shutdown_1(void *generic_ptr)
/* If booted from SRM, reset some of the original environment. */
if (alpha_using_srm) {
#ifdef CONFIG_DUMMY_CONSOLE
/* If we've gotten here after SysRq-b, leave interrupt
context before taking over the console. */
if (in_interrupt())
irq_exit();
/* This has the effect of resetting the VGA video origin. */
take_over_console(&dummy_con, 0, MAX_NR_CONSOLES-1, 1);
#endif
......
Markdown is supported
0% .
You are about to add 0 people to the discussion. Proceed with caution.
先完成此消息的编辑!
想要评论请 注册