Package: cryptsetup Version: 2:1.6.6-5 Severity: normal when using password encrypted root and swap partitions (where a prompt is shown in initramfs stage), and the system kexecs as prepared by the kdump utility (the way i have tested it is enabling kdump, going into single-user mode and injecting a 'c' sysrq into /proc/sysrq-trigger), the password prompt is not shown, and a partial kernel panic message stays on the screen.
if one is aware that the passwords are due several seconds after the kexec, the user can enter them blindly; then, the system starts up and in the course of that makes the display usable again -- but unless guessing luckily[1], it appears as if the combination of cryptsetup and kdump were completely broken. best regards chrysn [1] depending on the user's undstanding of the whole situation, it might just as well be completely obvious, but i dare say that the average user has slim chances of guessing what to do. -- Package-specific info: -- /proc/cmdline BOOT_IMAGE=/vmlinuz-4.2.0-trunk-amd64 root=/dev/mapper/root ro verbose no_console_suspend thinkpad_acpi.fan_control=1 psmouse.resync_time=60 crashkernel=256M -- /etc/crypttab # <target name> <source device> <key file> <options> root /dev/mapper/hephaistos-debian--sid2 none luks swap /dev/mapper/hephaistos-swap none luks,swap -- /etc/fstab /dev/mapper/root / btrfs defaults 0 1 /dev/hephaistos/boot /boot ext4 defaults 0 2 UUID=961E-2909 /boot/efi vfat defaults 0 2 /dev/mapper/swap swap swap sw 0 0 proc /proc proc defaults 0 0 -- lsmod Module Size Used by rfcomm 69632 2 pci_stub 16384 1 vboxpci 24576 0 vboxnetadp 28672 0 vboxnetflt 28672 0 vboxdrv 446464 3 vboxnetadp,vboxnetflt,vboxpci ipt_REJECT 16384 2 nf_reject_ipv4 16384 1 ipt_REJECT xt_tcpudp 16384 5 bridge 110592 0 stp 16384 1 bridge llc 16384 2 stp,bridge ebtable_filter 16384 0 ebtables 36864 1 ebtable_filter ip6table_filter 16384 0 ip6_tables 28672 1 ip6table_filter iptable_filter 16384 1 ip_tables 28672 1 iptable_filter x_tables 36864 7 ip6table_filter,ip_tables,xt_tcpudp,iptable_filter,ebtables,ipt_REJECT,ip6_tables ctr 16384 2 ccm 20480 2 tun 28672 3 bnep 20480 2 cpufreq_userspace 16384 0 cpufreq_stats 16384 0 cpufreq_powersave 16384 0 cpufreq_conservative 16384 0 toshiba_acpi 40960 0 sparse_keymap 16384 1 toshiba_acpi toshiba_haps 16384 0 hp_accel 28672 0 lis3lv02d 20480 1 hp_accel input_polldev 16384 1 lis3lv02d binfmt_misc 20480 1 nls_utf8 16384 1 nls_cp437 20480 1 vfat 20480 1 fat 69632 1 vfat ext4 552960 1 mbcache 20480 1 ext4 jbd2 102400 1 ext4 cuse 16384 5 fuse 94208 4 cuse parport_pc 28672 0 ppdev 20480 0 lp 20480 0 parport 49152 3 lp,ppdev,parport_pc hid_sensor_gyro_3d 16384 0 hid_sensor_rotation 16384 0 hid_sensor_incl_3d 16384 0 hid_sensor_accel_3d 16384 0 hid_sensor_als 16384 0 hid_sensor_magn_3d 16384 0 hid_sensor_trigger 16384 12 hid_sensor_gyro_3d,hid_sensor_incl_3d,hid_sensor_accel_3d,hid_sensor_rotation,hid_sensor_als,hid_sensor_magn_3d hid_sensor_iio_common 16384 7 hid_sensor_trigger,hid_sensor_gyro_3d,hid_sensor_incl_3d,hid_sensor_accel_3d,hid_sensor_rotation,hid_sensor_als,hid_sensor_magn_3d industrialio_triggered_buffer 16384 6 hid_sensor_gyro_3d,hid_sensor_incl_3d,hid_sensor_accel_3d,hid_sensor_rotation,hid_sensor_als,hid_sensor_magn_3d kfifo_buf 16384 1 industrialio_triggered_buffer industrialio 57344 9 hid_sensor_trigger,hid_sensor_gyro_3d,industrialio_triggered_buffer,hid_sensor_incl_3d,hid_sensor_accel_3d,hid_sensor_rotation,hid_sensor_als,kfifo_buf,hid_sensor_magn_3d uvcvideo 90112 0 videobuf2_vmalloc 16384 1 uvcvideo videobuf2_memops 16384 1 videobuf2_vmalloc videobuf2_core 49152 1 uvcvideo v4l2_common 16384 1 videobuf2_core btusb 45056 0 btrtl 16384 1 btusb hid_sensor_hub 20480 8 hid_sensor_trigger,hid_sensor_gyro_3d,hid_sensor_incl_3d,hid_sensor_accel_3d,hid_sensor_rotation,hid_sensor_als,hid_sensor_magn_3d,hid_sensor_iio_common videodev 167936 3 uvcvideo,v4l2_common,videobuf2_core media 24576 2 uvcvideo,videodev btbcm 16384 1 btusb hid_multitouch 20480 0 btintel 16384 1 btusb msr 16384 0 bluetooth 499712 29 bnep,btbcm,btrtl,btusb,rfcomm,btintel crc16 16384 2 ext4,bluetooth acpi_call 16384 0 x86_pkg_temp_thermal 16384 0 joydev 20480 0 intel_powerclamp 16384 0 intel_rapl 20480 0 iTCO_wdt 16384 0 iTCO_vendor_support 16384 1 iTCO_wdt iosf_mbi 16384 1 intel_rapl arc4 16384 2 iwlmvm 192512 0 mac80211 630784 1 iwlmvm coretemp 16384 0 kvm_intel 163840 0 rtsx_pci_ms 20480 0 kvm 495616 1 kvm_intel iwlwifi 118784 1 iwlmvm evdev 20480 15 memstick 20480 1 rtsx_pci_ms efi_pstore 16384 1 psmouse 122880 0 pcspkr 16384 0 serio_raw 16384 0 cfg80211 532480 3 iwlwifi,mac80211,iwlmvm efivars 20480 1 efi_pstore tpm_tis 20480 0 thinkpad_acpi 81920 1 sg 32768 0 snd_hda_codec_hdmi 49152 1 wmi 20480 1 toshiba_acpi lpc_ich 24576 0 nvram 16384 1 thinkpad_acpi i915 1097728 3 rfkill 24576 5 cfg80211,thinkpad_acpi,bluetooth tpm 40960 1 tpm_tis drm_kms_helper 126976 1 i915 drm 352256 4 i915,drm_kms_helper i2c_algo_bit 16384 1 i915 shpchp 36864 0 battery 16384 0 snd_hda_codec_conexant 24576 1 snd_hda_codec_generic 73728 1 snd_hda_codec_conexant ac 16384 0 i2c_i801 20480 0 video 36864 3 i915,toshiba_acpi,thinkpad_acpi button 16384 1 i915 snd_hda_intel 36864 7 snd_hda_codec 131072 4 snd_hda_codec_hdmi,snd_hda_codec_conexant,snd_hda_codec_generic,snd_hda_intel snd_hda_core 65536 5 snd_hda_codec_hdmi,snd_hda_codec_conexant,snd_hda_codec_generic,snd_hda_codec,snd_hda_intel processor 36864 0 intel_smartconnect 16384 0 mei_me 24576 0 mei 86016 1 mei_me snd_hwdep 16384 1 snd_hda_codec snd_pcm 102400 4 snd_hda_codec_hdmi,snd_hda_codec,snd_hda_intel,snd_hda_core snd_timer 32768 1 snd_pcm snd 86016 23 snd_hwdep,snd_timer,snd_hda_codec_hdmi,snd_hda_codec_conexant,snd_pcm,snd_hda_codec_generic,snd_hda_codec,snd_hda_intel,thinkpad_acpi soundcore 16384 1 snd btrfs 933888 2 xor 24576 1 btrfs raid6_pq 102400 1 btrfs algif_skcipher 20480 0 af_alg 16384 1 algif_skcipher dm_crypt 24576 3 dm_mod 106496 26 dm_crypt md_mod 131072 0 wacom 81920 0 usbhid 49152 0 hid 114688 4 hid_multitouch,wacom,hid_sensor_hub,usbhid sd_mod 40960 3 crct10dif_pclmul 16384 0 crc32_pclmul 16384 0 crc32c_intel 24576 1 ghash_clmulni_intel 16384 0 jitterentropy_rng 16384 0 sha256_ssse3 28672 1 sha256_generic 24576 1 sha256_ssse3 hmac 16384 1 drbg 24576 1 rtsx_pci_sdmmc 24576 0 ansi_cprng 16384 0 mmc_core 126976 1 rtsx_pci_sdmmc ahci 36864 3 xhci_pci 16384 0 libahci 32768 1 ahci aesni_intel 167936 10 xhci_hcd 167936 1 xhci_pci aes_x86_64 20480 1 aesni_intel lrw 16384 1 aesni_intel gf128mul 16384 1 lrw glue_helper 16384 1 aesni_intel ablk_helper 16384 1 aesni_intel libata 233472 2 ahci,libahci cryptd 20480 6 ghash_clmulni_intel,aesni_intel,ablk_helper scsi_mod 225280 3 sg,libata,sd_mod rtsx_pci 53248 2 rtsx_pci_ms,rtsx_pci_sdmmc mfd_core 16384 3 lpc_ich,rtsx_pci,hid_sensor_hub usbcore 233472 5 btusb,uvcvideo,usbhid,xhci_hcd,xhci_pci thermal 20480 0 usb_common 16384 1 usbcore thermal_sys 49152 5 video,intel_powerclamp,thermal,processor,x86_pkg_temp_thermal -- System Information: Debian Release: stretch/sid APT prefers unstable APT policy: (500, 'unstable'), (1, 'experimental') Architecture: amd64 (x86_64) Foreign Architectures: i386 Kernel: Linux 4.2.0-trunk-amd64 (SMP w/4 CPU cores) Locale: LANG=en_GB.UTF-8, LC_CTYPE=en_GB.UTF-8 (charmap=UTF-8) Shell: /bin/sh linked to /bin/dash Init: sysvinit (via /sbin/init) Versions of packages cryptsetup depends on: ii cryptsetup-bin 2:1.6.6-5 ii debconf [debconf-2.0] 1.5.57 ii dmsetup 2:1.02.104-1 ii libc6 2.19-20 Versions of packages cryptsetup recommends: ii busybox-static [busybox] 1:1.22.0-15 ii console-setup 1.132 ii initramfs-tools [linux-initramfs-tool] 0.120 ii kbd 1.15.5-2 Versions of packages cryptsetup suggests: ii dosfstools 3.0.28-2 ii keyutils 1.5.9-7 ii liblocale-gettext-perl 1.05-9 -- debconf information: cryptsetup/prerm_active_mappings: true -- To use raw power is to make yourself infinitely vulnerable to greater powers. -- Bene Gesserit axiom
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