Bug#878829: initramfs-tools: system freezes at boot with MODULES=dep
Package: initramfs-tools
Version: 0.130
Severity: important
Hi.
The following is a quite strange problem, and it may actually be a kernel bug.
Few days ago, I got a new notebook (a Fujitsu U757), before I removed the HDD from
the old one, I changed MODULES=most on the old and updated the initramfs.
This was with kernel 4.13.4-1.
Then I moved the HDD to the new notebook, and everything worked fine.
Yesterday I've upgraded to 4.13.4-2 and then during booting the system freezes.
First I thought it must be because of the kernel, but after some trying, I
remebered that I've changed MODULES back to =dep and may not have put an updated
initrmafs in place. Downgrading to the older kernel, and trying with dep seems
to confirm this. The system freezes as well.
Some further detail:
My system is fully encrypted with dm-crypt and I boot from a USB stick.
So the kernel, initramfs and a gpg-encrypted key is on the USB stick.
(I don't use the keyscripts from Debian as they have issues, but my own
basically just mounts a device by UUID, asks for a password and tries to
decrypt the file from the device, which contains the key).
This is also why my /etc/initramfs-tools/modules contains the
modules for USB.
Now, when I boot with a initramfs created with MODULES=dep, it
goes until my keyscripts asks me for the password (which means that
the fs on the USB stick must have been found mounted and unmounted
already (this is done with passdev from cryptsetup, which mounts, reads the
key file and unmounts)).
At that pount (the password prompt printed) the system is frozen.
No keyboard activity, nothing printed to the konsole when I remove or add
e.g. USB sticks, MagicSysRQ doesn't work either.
The only thing that helps is a hard power down.
On some (but not all occasions) I saw some graphical distortions on the screen,
e.g. parts of a character row overwritten by a small black line.
As soon as I use MODULES=most, everything works fine again.
>From the behaviour I'd say there is some kernel bug here as well, as it freezes
and doesn't even panic or so.
Feel free to immediately reassign to the kernel if you agree.
I'd be greateful for any other advice on how to debug this.
Cheers,
Chris.
-- Package-specific info:
-- initramfs sizes
-rw-r--r-- 1 root root 14M Oct 17 01:33 /boot/initrd.img-4.13.0-1-amd64
-- /proc/cmdline
BOOT_IMAGE=/vmlinuz-4.13.0-1-amd64 root=UUID=4b769edc-b2cc-11e7-8f8a-38afd7a81270 ro rootflags=subvol=root
-- /proc/filesystems
btrfs
ext3
ext2
ext4
fuseblk
-- lsmod
Module Size Used by
ctr 16384 4
ccm 20480 6
fuse 98304 3
ebtable_filter 16384 0
ebtables 32768 1 ebtable_filter
devlink 40960 0
cpufreq_userspace 16384 0
cpufreq_powersave 16384 0
cpufreq_conservative 16384 0
snd_hda_codec_hdmi 49152 1
arc4 16384 2
snd_hda_codec_realtek 94208 1
snd_hda_codec_generic 69632 1 snd_hda_codec_realtek
i2c_designware_platform 16384 0
i2c_designware_core 20480 1 i2c_designware_platform
snd_soc_skl 77824 0
snd_soc_skl_ipc 49152 1 snd_soc_skl
snd_soc_sst_ipc 16384 1 snd_soc_skl_ipc
snd_soc_sst_dsp 32768 1 snd_soc_skl_ipc
snd_hda_ext_core 24576 1 snd_soc_skl
snd_soc_sst_match 16384 1 snd_soc_skl
snd_soc_core 217088 1 snd_soc_skl
intel_rapl 20480 0
snd_compress 20480 1 snd_soc_core
x86_pkg_temp_thermal 16384 0
intel_powerclamp 16384 0
coretemp 16384 0
kvm_intel 196608 0
btusb 45056 0
kvm 577536 1 kvm_intel
btrtl 16384 1 btusb
hci_uart 90112 0
irqbypass 16384 1 kvm
intel_cstate 16384 0
btqca 16384 1 hci_uart
btbcm 16384 2 hci_uart,btusb
btintel 16384 2 hci_uart,btusb
uvcvideo 90112 0
bluetooth 540672 7 btrtl,hci_uart,btintel,btqca,btbcm,btusb
iwlmvm 258048 0
intel_uncore 122880 0
videobuf2_vmalloc 16384 1 uvcvideo
mac80211 659456 1 iwlmvm
snd_hda_intel 36864 3
intel_rapl_perf 16384 0
videobuf2_memops 16384 1 videobuf2_vmalloc
pcspkr 16384 0
videobuf2_v4l2 24576 1 uvcvideo
snd_hda_codec 126976 4 snd_hda_intel,snd_hda_codec_hdmi,snd_hda_codec_generic,snd_hda_codec_realtek
joydev 20480 0
videobuf2_core 36864 2 uvcvideo,videobuf2_v4l2
evdev 24576 22
cdc_mbim 16384 0
iwlwifi 167936 1 iwlmvm
serio_raw 16384 0
cdc_wdm 20480 1 cdc_mbim
snd_hda_core 77824 7 snd_hda_intel,snd_hda_codec,snd_hda_ext_core,snd_soc_skl,snd_hda_codec_hdmi,snd_hda_codec_generic,snd_hda_codec_realtek
snd_hwdep 16384 1 snd_hda_codec
cdc_ncm 36864 1 cdc_mbim
snd_pcm 98304 7 snd_hda_intel,snd_hda_codec,snd_hda_ext_core,snd_hda_core,snd_soc_skl,snd_hda_codec_hdmi,snd_soc_core
usbnet 45056 2 cdc_mbim,cdc_ncm
snd_timer 32768 1 snd_pcm
videodev 167936 3 uvcvideo,videobuf2_core,videobuf2_v4l2
mii 16384 1 usbnet
snd 77824 16 snd_compress,snd_hda_intel,snd_hwdep,snd_hda_codec,snd_timer,snd_hda_codec_hdmi,snd_hda_codec_generic,snd_hda_codec_realtek,snd_soc_core,snd_pcm
ucsi_acpi 16384 0
iTCO_wdt 16384 0
drbg 28672 1
media 40960 2 uvcvideo,videodev
typec_ucsi 24576 1 ucsi_acpi
iTCO_vendor_support 16384 1 iTCO_wdt
soundcore 16384 1 snd
cfg80211 602112 3 iwlmvm,iwlwifi,mac80211
ansi_cprng 16384 0
idma64 20480 0
i915 1552384 15
sg 32768 0
wmi 24576 0
typec 24576 1 typec_ucsi
fujitsu_laptop 20480 0
drm_kms_helper 151552 1 i915
battery 20480 0
intel_lpss_pci 20480 0
ecdh_generic 24576 1 bluetooth
rfkill 24576 5 bluetooth,cfg80211
drm 348160 6 i915,drm_kms_helper
ip6t_REJECT 16384 3
intel_lpss_acpi 16384 0
tpm_crb 16384 0
mei_me 40960 0
nf_reject_ipv6 16384 1 ip6t_REJECT
button 16384 1 i915
mei 98304 1 mei_me
sparse_keymap 16384 1 fujitsu_laptop
intel_lpss 16384 2 intel_lpss_pci,intel_lpss_acpi
i2c_algo_bit 16384 1 i915
mfd_core 16384 1 intel_lpss
video 40960 2 fujitsu_laptop,i915
ac 16384 0
acpi_pad 24576 0
shpchp 36864 0
xt_tcpudp 16384 1
nf_conntrack_ipv6 20480 4
nf_defrag_ipv6 36864 1 nf_conntrack_ipv6
ip6table_filter 16384 1
ip6_tables 28672 1 ip6table_filter
xt_policy 16384 4
ipt_REJECT 16384 3
nf_reject_ipv4 16384 1 ipt_REJECT
xt_comment 16384 1
nf_conntrack_ipv4 16384 4
nf_defrag_ipv4 16384 1 nf_conntrack_ipv4
xt_multiport 16384 5
xt_conntrack 16384 8
nf_conntrack 131072 3 nf_conntrack_ipv6,nf_conntrack_ipv4,xt_conntrack
binfmt_misc 20480 1
iptable_filter 16384 1
sunrpc 331776 1
loop 28672 0
parport_pc 28672 0
ppdev 20480 0
lp 20480 0
parport 49152 3 lp,parport_pc,ppdev
ip_tables 24576 1 iptable_filter
x_tables 36864 12 xt_comment,xt_multiport,ipt_REJECT,ip_tables,ebtables,iptable_filter,xt_tcpudp,ip6t_REJECT,ip6table_filter,xt_policy,xt_conntrack,ip6_tables
autofs4 40960 2
algif_skcipher 20480 0
af_alg 16384 1 algif_skcipher
ext4 614400 0
crc16 16384 2 bluetooth,ext4
mbcache 16384 1 ext4
jbd2 98304 1 ext4
fscrypto 28672 1 ext4
ecb 16384 0
dm_crypt 36864 1
dm_mod 118784 3 dm_crypt
raid10 49152 0
raid456 143360 0
async_raid6_recov 20480 1 raid456
async_memcpy 16384 2 raid456,async_raid6_recov
async_pq 16384 2 raid456,async_raid6_recov
async_xor 16384 3 async_pq,raid456,async_raid6_recov
async_tx 16384 5 async_xor,async_pq,raid456,async_memcpy,async_raid6_recov
libcrc32c 16384 2 nf_conntrack,raid456
raid1 40960 0
raid0 20480 0
multipath 16384 0
linear 16384 0
md_mod 139264 6 raid1,raid10,multipath,linear,raid0,raid456
btrfs 1089536 1
crc32c_generic 16384 0
xor 24576 2 async_xor,btrfs
uas 24576 0
raid6_pq 118784 4 async_pq,btrfs,raid456,async_raid6_recov
uhci_hcd 45056 0
ehci_pci 16384 0
ehci_hcd 81920 1 ehci_pci
usb_storage 69632 1 uas
sd_mod 49152 2
crct10dif_pclmul 16384 0
crc32_pclmul 16384 0
crc32c_intel 24576 2
ghash_clmulni_intel 16384 0
pcbc 16384 0
aesni_intel 188416 6
aes_x86_64 20480 1 aesni_intel
crypto_simd 16384 1 aesni_intel
glue_helper 16384 1 aesni_intel
cryptd 24576 4 crypto_simd,ghash_clmulni_intel,aesni_intel
psmouse 143360 0
e1000e 241664 0
ptp 20480 1 e1000e
pps_core 20480 1 ptp
i2c_i801 24576 0
ahci 36864 1
sdhci_pci 28672 0
libahci 32768 1 ahci
sdhci 45056 1 sdhci_pci
xhci_pci 16384 0
libata 237568 2 ahci,libahci
mmc_core 139264 2 sdhci,sdhci_pci
xhci_hcd 208896 1 xhci_pci
scsi_mod 212992 5 sd_mod,usb_storage,libata,uas,sg
usbcore 245760 13 usbnet,uvcvideo,usb_storage,cdc_mbim,ehci_hcd,cdc_ncm,uhci_hcd,cdc_wdm,xhci_pci,btusb,uas,xhci_hcd,ehci_pci
usb_common 16384 1 usbcore
i2c_hid 20480 0
hid 118784 1 i2c_hid
-- /etc/initramfs-tools/modules
usb-storage
xhci-hcd
xhci-pci
ehci-hcd
ehci-pci
uhci-hcd
btrfs
-- /etc/kernel-img.conf
#warn_reboot = yes
#silent_modules = no
#ignore_depmod_err = no
#clobber_modules = no
#relink_src_link = yes
#relink_build_link = yes
#force_build_link = no
#preinst_hook =
#postinst_hook =
#prerm_hook =
#postrm_hook =
#src_postinst_hook =
#header_postinst_hook =
-- /etc/initramfs-tools/initramfs.conf
MODULES=dep
BUSYBOX=auto
KEYMAP=n
COMPRESS=xz
DEVICE=
NFSROOT=auto
-- /etc/initramfs-tools/update-initramfs.conf
update_initramfs=yes
backup_initramfs=no
-- /proc/mdstat
Personalities : [linear] [multipath] [raid0] [raid1] [raid6] [raid5] [raid4] [raid10]
unused devices: <none>
-- /sys/block
dm-0
loop0
loop1
loop2
loop3
loop4
loop5
loop6
loop7
sda
-- mkinitramfs hooks
/etc/initramfs-tools/hooks/:
cryptopenpgp
/usr/share/initramfs-tools/hooks:
btrfs
cryptgnupg
cryptkeyctl
cryptopenct
cryptopensc
cryptpassdev
cryptroot
cryptroot-unlock
dmsetup
fsck
fuse
keymap
klibc-utils
kmod
lvm2
mdadm
nbd
ntfs_3g
reiserfsprogs
resume
thermal
udev
v86d
zz-busybox
-- System Information:
Debian Release: buster/sid
APT prefers unstable-debug
APT policy: (500, 'unstable-debug'), (500, 'unstable')
Architecture: amd64 (x86_64)
Kernel: Linux 4.13.0-1-amd64 (SMP w/4 CPU cores)
Locale: LANG=en_DE.UTF-8, LC_CTYPE=en_DE.UTF-8 (charmap=UTF-8), LANGUAGE=en_DE.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Init: systemd (via /run/systemd/system)
Versions of packages initramfs-tools depends on:
ii initramfs-tools-core 0.130
ii linux-base 4.5
initramfs-tools recommends no packages.
Versions of packages initramfs-tools suggests:
ii bash-completion 1:2.1-4.3
-- no debconf information
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