Paul Fertser 174ff7d754 base-files: send informational UDP message each second waiting ... The preinit network initialisation and failsafe informational message are inherently racy as the interface takes some time to become functional after "ip link set $pi_ifname up" command. Consider this timing: [ 12.002713] IPv6: ADDRCONF(NETDEV_UP): eth1: link is not ready [ 12.008819] IPv6: ADDRCONF(NETDEV_UP): eth1.1: link is not ready [ 12.118877] random: procd: uninitialized urandom read (4 bytes read) [ 13.068614] eth1: link up (1000Mbps/Full duplex) [ 13.073309] IPv6: ADDRCONF(NETDEV_CHANGE): eth1: link becomes ready [ 13.080445] IPv6: ADDRCONF(NETDEV_CHANGE): eth1.1: link becomes ready Since the UDP message was sent prior to link becoming ready, it was never seen on the wire. The default failsafe timeout is set to 2 seconds, so with this patch there are two attempts to send the message, one spent in vain, and the other visible in tcpdump on an attached host. Of course, in cases when the interface is brought up faster it leads to two messages, however it should be harmless. This patch (almost) doesn't affect normal boot time while still allowing to enter failsafe reliably with a single button press, matching the official "generic failsafe" documentation. Signed-off-by: Paul Fertser <fercerpav@gmail.com>		2019-12-19 22:41:57 +01:00
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02_default_set_state	base-files: preinit: Fixed sourcing of diag.sh in /etc/preinit. This caused errors due to frequent use of /proc/cpuinfo to determine board name to pick led layout. Now diag.sh (which only defines set_state and any helper functions) is sourced by a proper preinit function during preinit_main, which is after /proc has been brought up, unlike in /etc/preinit	2011-07-07 02:52:02 +00:00
02_sysinfo	treewide: populate boardname and model earlier	2017-07-15 23:13:34 +02:00
10_indicate_failsafe	base-files: Allow to disable failsafe mode	2016-04-19 10:07:35 +02:00
10_indicate_preinit	merge: base: update base-files and basic config	2017-12-08 19:41:18 +01:00
30_failsafe_wait	base-files: send informational UDP message each second waiting	2019-12-19 22:41:57 +01:00
40_run_failsafe_hook	base-files: add support for staged sysupgrades from failsafe mode	2017-05-29 23:50:33 +02:00
50_indicate_regular_preinit	add "preinit_regular" diag.sh set_state argument	2014-12-15 10:37:00 +00:00
70_initramfs_test	base-files: fix whitespaces	2013-12-09 11:30:14 +00:00
80_mount_root	base-files: keep sysupgrade.tgz until /etc/init.d/done has been called	2015-03-22 15:11:20 +00:00
99_10_failsafe_login	base-files: add support for staged sysupgrades from failsafe mode	2017-05-29 23:50:33 +02:00
99_10_run_init	base-files: fix whitespaces	2013-12-09 11:30:14 +00:00