I'm build "openwrt-21.02" head with simple menuconfig customisations in Linux. Since yesterday i have message
daemon.info procd: Instance dropbear::instance1 s in a crash loop 6 crashes, 0 seconds since last crash
in log. So and SSH doesn't work at all. Build from 03.09.2021 and 05.09.2021 works fine with same customizations.
In this forum this usually means only 1/12th of the whole story and that we are supposed to know what else you did do just the seconds before it stoped working.
And you are so good at this that you build your own firmware and you don’t even show us the dropbear config file?
I got something similar in the log a couple of weeks ago. But after a nights sleep I realized when looking at the problem again i had screwed up a dropbear config setting line.
dropbear crashes even in clean (stock) configuration but here you go:
config dropbear
option PasswordAuth 'on'
option Interface 'lan'
option Port '%myport%'
Which customisations you have made?
Any changes to the toolchain options, or similar?
What is the ./scripts/diffconfig.sh outputin the buildhost?
<*> luci
[*] Minify Lua sources
turning off USB in USB Support
< > Enable IPv6 support in packages
< > kmod-nf-ipt6
< > libip6tc
< > Export mac80211 internals in DebugFS
[*] Remove ipkg/opkg status data files in final images
[*] Strip unnecessary exports from the kernel image
[*] Strip unnecessary functions from libraries
#!/bin/sh
grep \^CONFIG_TARGET_ .config | head -n3 > tmp/.diffconfig.head
grep \^CONFIG_TARGET_DEVICE_ .config >> tmp/.diffconfig.head
grep '^CONFIG_ALL=y' .config >> tmp/.diffconfig.head
grep '^CONFIG_ALL_KMODS=y' .config >> tmp/.diffconfig.head
grep '^CONFIG_ALL_NONSHARED=y' .config >> tmp/.diffconfig.head
grep '^CONFIG_DEVEL=y' .config >> tmp/.diffconfig.head
grep '^CONFIG_TOOLCHAINOPTS=y' .config >> tmp/.diffconfig.head
grep '^CONFIG_BUSYBOX_CUSTOM=y' .config >> tmp/.diffconfig.head
grep '^CONFIG_TARGET_PER_DEVICE_ROOTFS=y' .config >> tmp/.diffconfig.head
./scripts/config/conf --defconfig=tmp/.diffconfig.head -w tmp/.diffconfig.stage1 Config.in >/dev/null
./scripts/kconfig.pl '>+' tmp/.diffconfig.stage1 .config >> tmp/.diffconfig.head
./scripts/config/conf --defconfig=tmp/.diffconfig.head -w tmp/.diffconfig.stage2 Config.in >/dev/null
./scripts/kconfig.pl '>' tmp/.diffconfig.stage2 .config >> tmp/.diffconfig.head
cat tmp/.diffconfig.head
rm -f tmp/.diffconfig tmp/.diffconfig.head
Please show the output of running that diffconfig script, not the script contents...
It should show you a brief summary of config changes that you have made.
Based on the above, my first guess is that if you have changed the stripping options and not much else, then those stripping options might be the culprit.
But please show the diffconfig output to see more closely...
Sorry my bad.
CONFIG_TARGET_ath79=y
CONFIG_TARGET_ath79_generic=y
CONFIG_TARGET_ath79_generic_DEVICE_tplink_tl-wdr3600-v1=y
# CONFIG_BUSYBOX_DEFAULT_FEATURE_IPV6 is not set
CONFIG_CLEAN_IPKG=y
# CONFIG_IPV6 is not set
# CONFIG_KERNEL_IPV6 is not set
CONFIG_LUCI_SRCDIET=y
# CONFIG_PACKAGE_ATH_DFS is not set
# CONFIG_PACKAGE_MAC80211_DEBUGFS is not set
# CONFIG_PACKAGE_MAC80211_MESH is not set
CONFIG_PACKAGE_cgi-io=y
CONFIG_PACKAGE_dnscrypt-proxy2=y
# CONFIG_PACKAGE_kmod-nf-ipt6 is not set
# CONFIG_PACKAGE_kmod-usb-core is not set
# CONFIG_PACKAGE_kmod-usb-ledtrig-usbport is not set
# CONFIG_PACKAGE_kmod-usb2 is not set
# CONFIG_PACKAGE_libip6tc is not set
CONFIG_PACKAGE_libiwinfo-lua=y
CONFIG_PACKAGE_liblua=y
CONFIG_PACKAGE_liblucihttp=y
CONFIG_PACKAGE_liblucihttp-lua=y
CONFIG_PACKAGE_libubus-lua=y
CONFIG_PACKAGE_lua=y
CONFIG_PACKAGE_luci=y
CONFIG_PACKAGE_luci-app-firewall=y
CONFIG_PACKAGE_luci-app-opkg=y
CONFIG_PACKAGE_luci-base=y
CONFIG_PACKAGE_luci-lib-base=y
CONFIG_PACKAGE_luci-lib-ip=y
CONFIG_PACKAGE_luci-lib-jsonc=y
CONFIG_PACKAGE_luci-lib-nixio=y
CONFIG_PACKAGE_luci-mod-admin-full=y
CONFIG_PACKAGE_luci-mod-network=y
CONFIG_PACKAGE_luci-mod-status=y
CONFIG_PACKAGE_luci-mod-system=y
CONFIG_PACKAGE_luci-proto-ppp=y
CONFIG_PACKAGE_luci-theme-bootstrap=y
CONFIG_PACKAGE_rpcd=y
CONFIG_PACKAGE_rpcd-mod-file=y
CONFIG_PACKAGE_rpcd-mod-iwinfo=y
CONFIG_PACKAGE_rpcd-mod-luci=y
CONFIG_PACKAGE_rpcd-mod-rrdns=y
CONFIG_PACKAGE_uhttpd=y
CONFIG_PACKAGE_uhttpd-mod-ubus=y
CONFIG_STRIP_KERNEL_EXPORTS=y
CONFIG_USE_MKLIBS=y
CONFIG_PACKAGE_kmod-nls-base=y
I would guess either the IPv6 disabling or the stripping might be the reason.
¯_(ツ)_/¯
Exactly the same customizations in 21.02 builds from 3-5 september and all of 19.07 doesn't affect dropbear at all.
Well, there aren't any significant source code chage in the openwrt-21.02 branch since Sep 3-5 until now.
There are only some kernel crash related stuff, which shouldn't have impact for you.
But there aren't any clues, why identical build config and identical uci config files would now crash it while it worked in your Sep 5th build.
You might need to rebuild the toolchain etc. just to clear up the whole build env, and verify that it really is about the current source code.
You were right. dropbear without this stripping options works normally.
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