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Bug 521782 - sys-apps/kexec-tools - recovery kernel not starting busybox
Summary: sys-apps/kexec-tools - recovery kernel not starting busybox
Status: UNCONFIRMED
Alias: None
Product: Gentoo Linux
Classification: Unclassified
Component: [OLD] Core system (show other bugs)
Hardware: All Linux
: Normal normal (vote)
Assignee: Gentoo's Team for Core System packages
URL:
Whiteboard:
Keywords:
Depends on:
Blocks:
 
Reported: 2014-08-30 22:39 UTC by Paige Thompson
Modified: 2016-01-22 16:07 UTC (History)
0 users

See Also:
Package list:
Runtime testing required: ---


Attachments
busybox not starting (doesnt start busy.png,57.67 KB, image/png)
2014-08-30 23:06 UTC, Paige Thompson
Details

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Description Paige Thompson 2014-08-30 22:39:34 UTC
in grub this kernel starts busy box when it cant find /dev/mapper/root, 

but with kexec-tools /etc/local.d/kdump.start
#!/bin/bash
kexec -p /boot/kernel-genkernel-recovery-x86_64-3.16.1-gentoo-recovery initrd=/boot/initramfs-genkernel-recovery-x86_64-3.16.1-gentoo-recovery --append="root=/dev/mapper/root single irqpoll maxcpus=1 reset_devices"

check that its loaded, trigger sysrq, 

see attached kvm over ip screenshot:
Comment 1 Paige Thompson 2014-08-30 22:53:53 UTC
this is what I expected to see (how grub does it) 
http://imgur.com/4RIq9n2
Comment 2 Paige Thompson 2014-08-30 23:06:04 UTC
Created attachment 383986 [details]
busybox not starting
Comment 3 Paige Thompson 2014-08-30 23:07:16 UTC
windowlicker ~ # cat /etc/local.d/kdump.start 
#!/bin/bash
kexec -p /boot/kernel-genkernel-recovery-x86_64-3.16.1-gentoo-recovery initrd=/boot/initramfs-genkernel-recovery-x86_64-3.16.1-gentoo-recovery --append="crypt_root=/dev/sda2 real_root=/dev/mapper/root single irqpoll maxcpus=1 reset_devices"
windowlicker ~ # 

tried this too no luck
Comment 4 Jeroen Roovers gentoo-dev 2014-09-04 09:09:50 UTC
Please post your `emerge --info sys-apps/kexec-tools' output in a comment.
Comment 5 Paige Thompson 2014-09-05 12:36:14 UTC
Give me a sec, I'm going to setup a VM from scratch and repro this for you
Comment 6 Paige Thompson 2014-09-05 12:36:46 UTC
(In reply to Paige Thompson from comment #5)
> Give me a sec, I'm going to setup a VM from scratch and repro this for you

then I'll post your emerge --info
Comment 7 Paige Thompson 2014-09-05 20:00:58 UTC
localhost ~ # emerge --info sys-apps/kexec-tools
Portage 2.2.8-r1 (default/linux/amd64/13.0, gcc-4.7.3, glibc-2.19-r1, 3.14.14-gentoo-debug x86_64)
=================================================================
                         System Settings
=================================================================
System uname: Linux-3.14.14-gentoo-debug-x86_64-QEMU_Virtual_CPU_version_2.1.50-with-gentoo-2.2
KiB Mem:     3524084 total,   3379876 free
KiB Swap:    4882748 total,   4882748 free
Timestamp of tree: Fri, 05 Sep 2014 12:30:01 +0000
ld GNU ld (Gentoo 2.23.2 p1.0) 2.23.2
app-shells/bash:          4.2_p45
dev-lang/python:          2.7.7, 3.3.5-r1
dev-util/pkgconfig:       0.28-r1
sys-apps/baselayout:      2.2
sys-apps/openrc:          0.12.4
sys-apps/sandbox:         2.6-r1
sys-devel/autoconf:       2.69
sys-devel/automake:       1.13.4
sys-devel/binutils:       2.23.2
sys-devel/gcc:            4.7.3-r1
sys-devel/gcc-config:     1.7.3
sys-devel/libtool:        2.4.2-r1
sys-devel/make:           3.82-r4
sys-kernel/linux-headers: 3.13 (virtual/os-headers)
sys-libs/glibc:           2.19-r1
Repositories: gentoo
ACCEPT_KEYWORDS="amd64"
ACCEPT_LICENSE="* -@EULA"
CBUILD="x86_64-pc-linux-gnu"
CFLAGS="-O2 -pipe"
CHOST="x86_64-pc-linux-gnu"
CONFIG_PROTECT="/etc /usr/share/gnupg/qualified.txt"
CONFIG_PROTECT_MASK="/etc/ca-certificates.conf /etc/env.d /etc/gconf /etc/gentoo-release /etc/sandbox.d /etc/terminfo"
CXXFLAGS="-O2 -pipe"
DISTDIR="/usr/portage/distfiles"
FCFLAGS="-O2 -pipe"
FEATURES="assume-digests binpkg-logs config-protect-if-modified distlocks ebuild-locks fixlafiles merge-sync news parallel-fetch preserve-libs protect-owned sandbox sfperms strict unknown-features-warn unmerge-logs unmerge-orphans userfetch userpriv usersandbox usersync"
FFLAGS="-O2 -pipe"
GENTOO_MIRRORS="http://distfiles.gentoo.org"
LDFLAGS="-Wl,-O1 -Wl,--as-needed"
MAKEOPTS="-j17"
PKGDIR="/usr/portage/packages"
PORTAGE_CONFIGROOT="/"
PORTAGE_RSYNC_OPTS="--recursive --links --safe-links --perms --times --omit-dir-times --compress --force --whole-file --delete --stats --human-readable --timeout=180 --exclude=/distfiles --exclude=/local --exclude=/packages"
PORTAGE_TMPDIR="/var/tmp"
PORTDIR="/usr/portage"
PORTDIR_OVERLAY=""
USE="acl acpi amd64 berkdb bindist bzip2 cli cracklib crypt cxx dri fortran gdbm iconv iproute2 iptables ipv6 mmx modules multilib ncurses nls nptl openmp pam pcre readline session sse sse2 ssl tcpd unicode zlib" ABI_X86="64" ALSA_CARDS="ali5451 als4000 atiixp atiixp-modem bt87x ca0106 cmipci emu10k1x ens1370 ens1371 es1938 es1968 fm801 hda-intel intel8x0 intel8x0m maestro3 trident usb-audio via82xx via82xx-modem ymfpci" APACHE2_MODULES="authn_core authz_core socache_shmcb unixd actions alias auth_basic authn_alias authn_anon authn_dbm authn_default authn_file authz_dbm authz_default authz_groupfile authz_host authz_owner authz_user autoindex cache cgi cgid dav dav_fs dav_lock deflate dir disk_cache env expires ext_filter file_cache filter headers include info log_config logio mem_cache mime mime_magic negotiation rewrite setenvif speling status unique_id userdir usertrack vhost_alias" CALLIGRA_FEATURES="kexi words flow plan sheets stage tables krita karbon braindump author" CAMERAS="ptp2" COLLECTD_PLUGINS="df interface irq load memory rrdtool swap syslog" ELIBC="glibc" GPSD_PROTOCOLS="ashtech aivdm earthmate evermore fv18 garmin garmintxt gpsclock itrax mtk3301 nmea ntrip navcom oceanserver oldstyle oncore rtcm104v2 rtcm104v3 sirf superstar2 timing tsip tripmate tnt ublox ubx" INPUT_DEVICES="keyboard mouse evdev" KERNEL="linux" LCD_DEVICES="bayrad cfontz cfontz633 glk hd44780 lb216 lcdm001 mtxorb ncurses text" LIBREOFFICE_EXTENSIONS="presenter-console presenter-minimizer" OFFICE_IMPLEMENTATION="libreoffice" PHP_TARGETS="php5-5" PYTHON_SINGLE_TARGET="python2_7" PYTHON_TARGETS="python2_7 python3_3" RUBY_TARGETS="ruby19" USERLAND="GNU" VIDEO_CARDS="fbdev glint intel mach64 mga nouveau nv r128 radeon savage sis tdfx trident vesa via vmware dummy v4l" XTABLES_ADDONS="quota2 psd pknock lscan length2 ipv4options ipset ipp2p iface geoip fuzzy condition tee tarpit sysrq steal rawnat logmark ipmark dhcpmac delude chaos account"
Unset:  CPPFLAGS, CTARGET, EMERGE_DEFAULT_OPTS, INSTALL_MASK, LANG, LC_ALL, PORTAGE_BUNZIP2_COMMAND, PORTAGE_COMPRESS, PORTAGE_COMPRESS_FLAGS, PORTAGE_RSYNC_EXTRA_OPTS, SYNC, USE_PYTHON

=================================================================
                        Package Settings
=================================================================

sys-apps/kexec-tools-2.0.4-r2 was built with the following:
USE="zlib -booke -lzma -xen" ABI_X86="64"

localhost ~ # 


************I also tried with USE="lzma" but same problem: *********************

localhost etc # emerge --info sys-apps/kexec-tools
Portage 2.2.8-r1 (default/linux/amd64/13.0, gcc-4.7.3, glibc-2.19-r1, 3.14.14-gentoo-vanilla x86_64)
=================================================================
                         System Settings
=================================================================
System uname: Linux-3.14.14-gentoo-vanilla-x86_64-QEMU_Virtual_CPU_version_2.1.50-with-gentoo-2.2
KiB Mem:     3524084 total,   3382904 free
KiB Swap:    4882748 total,   4882748 free
Timestamp of tree: Fri, 05 Sep 2014 12:30:01 +0000
ld GNU ld (Gentoo 2.23.2 p1.0) 2.23.2
app-shells/bash:          4.2_p45
dev-lang/python:          2.7.7, 3.3.5-r1
dev-util/pkgconfig:       0.28-r1
sys-apps/baselayout:      2.2
sys-apps/openrc:          0.12.4
sys-apps/sandbox:         2.6-r1
sys-devel/autoconf:       2.69
sys-devel/automake:       1.13.4
sys-devel/binutils:       2.23.2
sys-devel/gcc:            4.7.3-r1
sys-devel/gcc-config:     1.7.3
sys-devel/libtool:        2.4.2-r1
sys-devel/make:           3.82-r4
sys-kernel/linux-headers: 3.13 (virtual/os-headers)
sys-libs/glibc:           2.19-r1
Repositories: gentoo
ACCEPT_KEYWORDS="amd64"
ACCEPT_LICENSE="* -@EULA"
CBUILD="x86_64-pc-linux-gnu"
CFLAGS="-O2 -pipe"
CHOST="x86_64-pc-linux-gnu"
CONFIG_PROTECT="/etc /usr/share/gnupg/qualified.txt"
CONFIG_PROTECT_MASK="/etc/ca-certificates.conf /etc/env.d /etc/gconf /etc/gentoo-release /etc/sandbox.d /etc/terminfo"
CXXFLAGS="-O2 -pipe"
DISTDIR="/usr/portage/distfiles"
FCFLAGS="-O2 -pipe"
FEATURES="assume-digests binpkg-logs config-protect-if-modified distlocks ebuild-locks fixlafiles merge-sync news parallel-fetch preserve-libs protect-owned sandbox sfperms strict unknown-features-warn unmerge-logs unmerge-orphans userfetch userpriv usersandbox usersync"
FFLAGS="-O2 -pipe"
GENTOO_MIRRORS="http://distfiles.gentoo.org"
LDFLAGS="-Wl,-O1 -Wl,--as-needed"
MAKEOPTS="-j17"
PKGDIR="/usr/portage/packages"
PORTAGE_CONFIGROOT="/"
PORTAGE_RSYNC_OPTS="--recursive --links --safe-links --perms --times --omit-dir-times --compress --force --whole-file --delete --stats --human-readable --timeout=180 --exclude=/distfiles --exclude=/local --exclude=/packages"
PORTAGE_TMPDIR="/var/tmp"
PORTDIR="/usr/portage"
PORTDIR_OVERLAY=""
USE="acl acpi amd64 berkdb bindist bzip2 cli cracklib crypt cxx dri fortran gdbm iconv iproute2 iptables ipv6 mmx modules multilib ncurses nls nptl openmp pam pcre readline session sse sse2 ssl tcpd unicode zlib" ABI_X86="64" ALSA_CARDS="ali5451 als4000 atiixp atiixp-modem bt87x ca0106 cmipci emu10k1x ens1370 ens1371 es1938 es1968 fm801 hda-intel intel8x0 intel8x0m maestro3 trident usb-audio via82xx via82xx-modem ymfpci" APACHE2_MODULES="authn_core authz_core socache_shmcb unixd actions alias auth_basic authn_alias authn_anon authn_dbm authn_default authn_file authz_dbm authz_default authz_groupfile authz_host authz_owner authz_user autoindex cache cgi cgid dav dav_fs dav_lock deflate dir disk_cache env expires ext_filter file_cache filter headers include info log_config logio mem_cache mime mime_magic negotiation rewrite setenvif speling status unique_id userdir usertrack vhost_alias" CALLIGRA_FEATURES="kexi words flow plan sheets stage tables krita karbon braindump author" CAMERAS="ptp2" COLLECTD_PLUGINS="df interface irq load memory rrdtool swap syslog" ELIBC="glibc" GPSD_PROTOCOLS="ashtech aivdm earthmate evermore fv18 garmin garmintxt gpsclock itrax mtk3301 nmea ntrip navcom oceanserver oldstyle oncore rtcm104v2 rtcm104v3 sirf superstar2 timing tsip tripmate tnt ublox ubx" INPUT_DEVICES="keyboard mouse evdev" KERNEL="linux" LCD_DEVICES="bayrad cfontz cfontz633 glk hd44780 lb216 lcdm001 mtxorb ncurses text" LIBREOFFICE_EXTENSIONS="presenter-console presenter-minimizer" OFFICE_IMPLEMENTATION="libreoffice" PHP_TARGETS="php5-5" PYTHON_SINGLE_TARGET="python2_7" PYTHON_TARGETS="python2_7 python3_3" RUBY_TARGETS="ruby19" USERLAND="GNU" VIDEO_CARDS="fbdev glint intel mach64 mga nouveau nv r128 radeon savage sis tdfx trident vesa via vmware dummy v4l" XTABLES_ADDONS="quota2 psd pknock lscan length2 ipv4options ipset ipp2p iface geoip fuzzy condition tee tarpit sysrq steal rawnat logmark ipmark dhcpmac delude chaos account"
Unset:  CPPFLAGS, CTARGET, EMERGE_DEFAULT_OPTS, INSTALL_MASK, LANG, LC_ALL, PORTAGE_BUNZIP2_COMMAND, PORTAGE_COMPRESS, PORTAGE_COMPRESS_FLAGS, PORTAGE_RSYNC_EXTRA_OPTS, SYNC, USE_PYTHON

=================================================================
                        Package Settings
=================================================================

sys-apps/kexec-tools-2.0.4-r2 was built with the following:
USE="lzma zlib -booke -xen" ABI_X86="64"
Comment 8 Paige Thompson 2014-09-05 20:02:54 UTC
here's a copy and paste of the kdump.start and the kernel output to the serial console: 

https://gist.github.com/paigeadele/6b17c928aa85eb787fe8
Comment 9 Paige Thompson 2014-09-05 20:09:42 UTC
yeah so my conclusion is, it's not even trying to load the initrd (initramfs) and it has nothing to do with whether or not you build kexec-tools with or without lzma, the result is the same.... but it would make sense for it to have lzma since it's compressed with xz but I was pretty sure that's the kernel's job. On the other hand, if kexec is not compiled with lzma then how is it even able to uncompress the kernel? It does.... 


I'm stumped, Yeah this would be really helpful to have, but I guess arguably not necesarry since I don't HAVE to use LUKS and I don't HAVE to use LVM and I don't HAVE compile my drivers as modules, it just so happens that is the case though and I find it hard to believe the liklihood that initrd "just can't work" because so many people use lvm and the likes...  

But yeah it looks like the issue is that it's not even loading the initramfs for some reason. Any ideas?
Comment 10 Paige Thompson 2014-09-05 20:18:25 UTC
also I tested the recovery kernel does boot correctly from grub and the initramfs is loaded correctly, so it must be something that kexec is doing or is not doing right? 

demo:
https://gist.github.com/paigeadele/5c6568af79d6c6218180#file-gistfile1-txt-L243
Comment 11 Paige Thompson 2014-09-05 20:25:22 UTC
also: tried ~amd64 (2.0.7) and ** (-9999) same thing.
Comment 12 Justin Lecher gentoo-dev 2014-09-15 19:01:59 UTC
mmh, doesn't look good. I will try to figure out, what happens.