Your message dated Sat, 11 Aug 2018 21:34:19 +0200 with message-id <20180811193419.fauma4f2tejbs...@percival.namespace.at> and subject line Re: #536644: mdadm segfaults during initramfs boot, possibly dm related has caused the Debian Bug report #536644, regarding mdadm segfaults during initramfs boot, possibly dm related to be marked as done.
This means that you claim that the problem has been dealt with. If this is not the case it is now your responsibility to reopen the Bug report if necessary, and/or fix the problem forthwith. (NB: If you are a system administrator and have no idea what this message is talking about, this may indicate a serious mail system misconfiguration somewhere. Please contact ow...@bugs.debian.org immediately.) -- 536644: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=536644 Debian Bug Tracking System Contact ow...@bugs.debian.org with problems
--- Begin Message ---Subject: initramfs-tools: Boot failure from software-RAID1 with debian Lenny Package: initramfs-tools Version: 0.92o Severity: critical Justification: breaks the whole system *** Please type your report below this line *** On a newly built system, the boot sequence has been frequently failing as follows: ----- initrd /initrd.img-2.6.26-2-686 [Linux-initrd @ 0x378d1000, 0x71ee7b bytes] Decompressing Linux... Parsing ELF... done. Booting the kernel. [ 0.420026] PCI: Not using MMCONFIG. Loading, please wait... [ 5.494772] ata2: ACPI get timing mode failed (AE 0x300d) Discovering multipaths... mdadm: no devices found for /dev/md0 Segmentation fault mount: mounting /dev/md1 on /root failed: No such device mount: mounting /dev on /root/dev failed: No such file or directory mount: mounting /sys on /root/sys failed: No such file or directory mount: mounting /proc on /root/proc failed: No such file or directory Target filesystem doesn't have /sbin/init. No init found. Try passing init= bootarg. BusyBox v1.10.2 (Debian 1:1.10.2-2) built-in shell (ash) : : (initramfs) mdadm --assemble --scan mdadm: no devices found for /dev/md0 mdadm: /dev/md1 has been started with 1 drive (out of 2) (initramfs) ----- Note that the mdadm --assemble --scan works from within the initramfs. The above sample is only one mode of failure. Sometimes, the system will come up, but with reduced raidsets. Only once in a while does it come up OK. This is seemingly a timing problem -- the most frequent failure mode is for md1 (the root device) to assemble with one member and md0 to fail to assemble at all. If I add 'debug' to the boot parameters, it introduces enough delay to come up correctly almost every time. -- The rootdelay parameter does nothing to affect this problem -- settings between 5 and 30 have been tried with no results. I did find a workaround though: I have adjusted my local system to get a reliable boot by editing /usr/share/initramfs-tools/scripts/mdadm and /usr/share/initramfs-tools/scripts/multipath like this: 1) mdadm: right after 'maybe_break pre-mdadm' add '/bin/sleep 1' 2) mdadm: right after 'echo 1 > /sys/module/md_mod/parameters/start_ro' add '/bin/sleep 1' 3) multipath: after the last modprobe add '/bin/sleep 1' 4) multipath: After the call to /sbin/multipath' add '/bin/sleep 1' Obviously not a good, nor a proposed solution, but perhaps a place to start in identifying the timing problem. From here, it looks like the mdadm --assemble --scan is fired off before device mapper has finished stabilizing things. For reference, my hardware configuration is: Intel motherboard DG41RQ Core2 quad 6700 2xST31500341AS (seagate 1.5T) -- Package-specific info: -- /proc/cmdline root=/dev/md1 rootdelay=5 ro quiet -- /proc/filesystems ext3 -- lsmod Module Size Used by i915 25280 0 drm 65192 1 i915 kvm_intel 31168 0 kvm 106492 1 kvm_intel ppdev 6500 0 parport_pc 22500 0 lp 8164 0 parport 30988 3 ppdev,parport_pc,lp ipv6 235364 47 loop 12748 0 snd_hda_intel 325688 0 rng_core 3940 0 i2c_i801 7920 0 video 16432 0 i2c_core 19828 1 i2c_i801 button 6096 0 output 2912 1 video snd_pcm_oss 32832 0 snd_mixer_oss 12320 1 snd_pcm_oss intel_agp 22556 1 agpgart 28776 3 drm,intel_agp iTCO_wdt 9508 0 snd_pcm 62596 2 snd_hda_intel,snd_pcm_oss snd_seq_dummy 2660 0 snd_seq_oss 24992 0 snd_seq_midi 5728 0 snd_rawmidi 18528 1 snd_seq_midi snd_seq_midi_event 6432 2 snd_seq_oss,snd_seq_midi snd_seq 41456 6 snd_seq_dummy,snd_seq_oss,snd_seq_midi,snd_seq_midi_event snd_timer 17800 2 snd_pcm,snd_seq snd_seq_device 6380 5 snd_seq_dummy,snd_seq_oss,snd_seq_midi,snd_rawmidi,snd_seq snd 45604 9 snd_hda_intel,snd_pcm_oss,snd_mixer_oss,snd_pcm,snd_seq_oss,snd_rawmidi,snd_seq,snd_timer,snd_seq_device pcspkr 2432 0 soundcore 6368 1 snd snd_page_alloc 7816 2 snd_hda_intel,snd_pcm evdev 8000 4 ext3 105512 2 jbd 39444 1 ext3 mbcache 7108 1 ext3 dm_mirror 15104 0 dm_log 8484 1 dm_mirror dm_snapshot 14340 0 raid1 18016 2 md_mod 67068 3 raid1 dm_round_robin 2656 1 dm_emc 4384 0 dm_multipath 14920 3 dm_round_robin,dm_emc dm_mod 46184 18 dm_mirror,dm_log,dm_snapshot,dm_multipath ide_cd_mod 27652 0 cdrom 30176 1 ide_cd_mod sd_mod 22200 2 usbhid 35904 0 hid 33184 1 usbhid ff_memless 4392 1 usbhid ata_generic 4676 0 piix 6568 0 [permanent] ata_piix 14180 4 libata 140416 2 ata_generic,ata_piix scsi_mod 129324 2 sd_mod,libata dock 8304 1 libata uhci_hcd 18672 0 floppy 47748 0 ehci_hcd 28396 0 ide_pci_generic 3908 0 [permanent] ide_core 96136 3 ide_cd_mod,piix,ide_pci_generic usbcore 118224 4 usbhid,uhci_hcd,ehci_hcd r8169 23684 0 thermal 15228 0 processor 32544 1 thermal fan 4164 0 thermal_sys 10856 4 video,thermal,processor,fan -- /etc/kernel-img.conf # Kernel image management overrides # See kernel-img.conf(5) for details do_symlinks = yes relative_links = yes do_bootloader = no do_bootfloppy = no do_initrd = yes link_in_boot = no postinst_hook = update-grub postrm_hook = update-grub -- /etc/initramfs-tools/initramfs.conf MODULES=most BUSYBOX=y KEYMAP=n BOOT=local DEVICE=eth0 NFSROOT=auto -- System Information: Debian Release: 5.0.2 APT prefers stable APT policy: (500, 'stable') Architecture: i386 (i686) Kernel: Linux 2.6.26-2-686 (SMP w/4 CPU cores) Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8) Shell: /bin/sh linked to /bin/bash Versions of packages initramfs-tools depends on: ii cpio 2.9-13 GNU cpio -- a program to manage ar ii findutils 4.4.0-2 utilities for finding files--find, ii klibc-utils 1.5.12-2 small utilities built with klibc f ii module-init-tools 3.4-1 tools for managing Linux kernel mo ii udev 0.125-7+lenny1 /dev/ and hotplug management daemo Versions of packages initramfs-tools recommends: ii busybox 1:1.10.2-2 Tiny utilities for small and embed initramfs-tools suggests no packages. -- no debconf information
--- End Message ---
--- Begin Message ---I'm closing this, as all involved components are very old and this ticket hasn't seen updates in a long time. If problems persist in stretch or buster, please create a new bug report with the current state of things. Thanks, Chris
--- End Message ---
