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Date: Sat, 10 Oct 2009 22:51:05 +0200 From: Bernhard Walle <bernhard@...lle.de> To: akpm@...uxfoundation.org Cc: linux-kernel@...r.kernel.org, Bernhard Walle <bernhard@...lle.de> Subject: Always print panic message on current console The kernel offers with TIOCL_GETKMSGREDIRECT ioctl() the possibility to redirect the kernel messages to a specific console. However, since it's not possible to switch to the kernel message console after a panic(), it would be nice if the kernel would print the panic message on the current console. As suggested by Andrew, this patch series adds a new interface to access the global kmsg_redirect variable by a function to be able to use it in code where CONFIG_VT_CONSOLE is not set (kernel/panic.c). The patch series makes kmsg_redirect a static variable and all kernel code outside of vt.c accesses that variable by the vt_set_kmsg_redirect() and vt_get_kmsg_redirect() functions. Signed-off-by: Bernhard Walle <bernhard@...lle.de> --- drivers/char/vt.c | 41 ++++++++++++++++++++++++++++++++++++++++- include/linux/tty.h | 2 -- include/linux/vt.h | 18 ++++++++++++++++++ kernel/panic.c | 4 ++++ kernel/power/console.c | 8 ++++---- 5 files changed, 66 insertions(+), 7 deletions(-) -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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