e2f0821b5a
Add the latest default Kernel for testing. Signed-off-by: Christian Lamparter <chunkeey@gmail.com>
55 lines
2.2 KiB
Diff
55 lines
2.2 KiB
Diff
From 53b5c5f559cc95fc676cb4cc9e5a8d9f0cb8f58c Mon Sep 17 00:00:00 2001
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Message-Id: <53b5c5f559cc95fc676cb4cc9e5a8d9f0cb8f58c.1659815468.git.chunkeey@gmail.com>
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From: Christian Lamparter <chunkeey@gmail.com>
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Date: Sat, 6 Aug 2022 21:22:01 +0200
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Subject: [PATCH v1 1/2] um: fix default console kernel parameter
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To: linux-um@lists.infradead.org
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Cc: Richard Weinberger <richard@nod.at>,
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Anton Ivanov <anton.ivanov@cambridgegreys.com>,
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Johannes Berg <johannes@sipsolutions.net>
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OpenWrt's UML with 5.15 was producing odd errors/warnings during preinit
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part of the early userspace portion:
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|[ 0.000000] Kernel command line: ubd0=root.img root=98:0 console=tty
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|[...]
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|[ 0.440000] random: jshn: uninitialized urandom read (4 bytes read)
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|[ 0.460000] random: jshn: uninitialized urandom read (4 bytes read)
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|/etc/preinit: line 47: can't create /dev/tty: No such device or address
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|/etc/preinit: line 48: can't create /dev/tty: No such device or address
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|/etc/preinit: line 58: can't open /dev/tty: No such device or address
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|[...] repeated many times
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That "/dev/tty" came from the command line (which is automatically
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added if no console= parameter was specified for the uml binary).
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The TLDP project tells the following about the /dev/tty:
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<https://tldp.org/HOWTO/Text-Terminal-HOWTO-7.html#ss7.3>
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| /dev/tty stands for the controlling terminal (if any) for the current
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| process.[...]
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| /dev/tty is something like a link to the actually terminal device[..]
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The "(if any)" is important here, since it's possible for processes to
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not have a controlling terminal.
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I think this was a simple typo and the author wanted tty0 there.
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CC: Thomas Meyer <thomas@m3y3r.de>
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Fixes: d7ffac33631b ("um: stdio_console: Make preferred console")
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Signed-off-by: Christian Lamparter <chunkeey@gmail.com>
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---
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arch/um/kernel/um_arch.c | 2 +-
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1 file changed, 1 insertion(+), 1 deletion(-)
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--- a/arch/um/kernel/um_arch.c
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+++ b/arch/um/kernel/um_arch.c
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@@ -31,7 +31,7 @@
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#include <os.h>
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#define DEFAULT_COMMAND_LINE_ROOT "root=98:0"
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-#define DEFAULT_COMMAND_LINE_CONSOLE "console=tty"
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+#define DEFAULT_COMMAND_LINE_CONSOLE "console=tty0"
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/* Changed in add_arg and setup_arch, which run before SMP is started */
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static char __initdata command_line[COMMAND_LINE_SIZE] = { 0 };
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