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#1 2015-08-24 23:01:00

kozaki
Member
From: London >. < Paris
Registered: 2005-06-13
Posts: 671
Website

[SOLVED] kernels 4.1 to 4.5: System hangs at boot

The problem: System freezes while booting before CLI login.

*****

In short:

Laptop hangs while booting with any kernel between 4.1-ARCH/lts/zen/ck up to 4.6 i686 and x86_64. A hard reboot is required.

Environment
- Laptop: Intel Atom N450 "Pineview" (Intel NM10 Express / GMA 3150) Dell Mini 1012 laptop.
- single HD layout with no Raid, LVM nor encryprion (former install); same but with lvm2 (new install)
- syslinux bootloader with separate /boot on sda1
- (should) boot-up to CLI -> login & startx i3-wm

Test steps and test results
- Initial reboot (after install) does boot and run fine with the latest kernel; freeze upon any subsequent reboot.
- Other distros show the exact same symptom, eg Viperr (Fedora 23).
- linux-mainline hangs on boot too.
- kernels 3.x, 4.0.7-ARCH (and 4.0.8.Fedora23) are the latest that boot fine.
- kernel mainline 4.6 (but not ARCH-4.6.x) is the first that allows booting this device.
- System won't even start to boot if 'intel_ucode' is used: Arch i686 and x86_64 (i686 booted with it till arround kernel 4.1, not with 4.4.1).

- Unplugged any connected device
- Unactivated/activated wireless, ethernet etc in the BIOS
- Added MODULES="i915 intel_agp" in mkinicpio.conf then mkinitpcio -p <kernel>
- Tried all cheatcodes I knew and other, also to no avail... Until using the one that imsProphet suggested on page #2.

Boot logs from various kernels are attached to the bug report.

*****

Original post follows.

Happens after 1st pacman -Syu since May.
happens as i'm moving, with just the netbook, an android device (please forbid my big fingers / typos) and Internet access. not even a usb key, isn't that an interesting challenge?

Hangs while booting while screen displays :

Linux-ck-atom 4.1.6

Arch: recovering joirnal
arch: 167nnn/427nnn files, 144nnnn/170nnnn blocks    <-- hang

linux-ARCH 4.1.6

early console in decomress_kernel
Decompressing Linux... 
Booting the kernel
<then = ck-atom>

Linux standard Fallback

...
[OK] Started Setup Virtual Console
[   10.7858nn] EXT4-fs (sda5): changing journal_checksum during reboot not suported, ignoring
...
[OK] Mounted /tmp
[OK] Started Flush Joirnalto Persistent storage
[OK] Created slice system-systemd\xdrfkill.slice
      Starting Load/Save RFKill Switch Status of rfkill1...    <-- hang

Linux-ARCH 4.1.6 Fallback + single = without single

Linux-ARCH 4.1.6 Fallback + emergency

...
Booting the kermel
[    0.9330nn] Failed to find cpu0 device node
...
:: Mounting '/dev/sda5' on real root

Welcome to Arch Linux!
[OK] Created slice Root Slice
[OK] Created slice System Slice
[OK] Started Emergency Shell
...
[    6.5637nn] systemd[86] : emergency.service : Failed at step EXEC spawning /bin/plymouth : no such fille or directory
Donnez le MdP super admin <Enter root password>...    <-- hang

In  each case, keyboard has *no* effect at all. atm I found no way to input something, and could't gain access to journalctl -xb, /etc/fstab, blkid and friends.

With no live system I jav no more sezy ideas, and ask for your kind and brilliant ones big_smile
*Might* found some info by ssh'in my desktop if needed.

Some refs i've found:
- Cause : systemd (unclear), localtime (in place of UTC).     4 users
   + bug report  FS#40706 - [systemd] cannot boot with 213-5
- Index » Kernel & Hardware » force fsck on boot and timeout waiting for device issues [SOLVED]
   Cause: RTC set to localtime (for 1 user)
- Index » Kernel & Hardware  » [Solved] systemd fails to start spawning /bin/plymouth.  Cause: faulty     HDD
- Index » Pacman & Package Upgrade Issues » Failed at step EXEC spawning /bin/plymouth: No such file or directory. Solved after unbinding mount points.
- Index » Newbie Corner » Arch won't boot: /boot, /var, /home and swap not mounted, Cause : ?, partition layout (/var), hardware raid, kernel  4.0.4

EDIT:
- Added an issue that summarize the info lost in subsequent posts (2016-02-05)
- Updated as of June, 20th.

Last edited by kozaki (2016-06-20 17:25:40)


Seeded last month: Arch 50 gig, derivatives 1 gig
Desktop @3.3GHz 8 gig RAM, linux-ck
laptop #1 Atom 2 gig RAM, Arch linux stock i686 (6H w/ 6yrs old battery smile) #2: ARM Tegra K1, 4 gig RAM, ChrOS
Atom Z520 2 gig RAM, OMV (Debian 7) kernel 3.16 bpo on SDHC | PGP Key: 0xFF0157D9

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#2 2015-08-25 00:42:11

frank604
Member
From: BC, Canada
Registered: 2011-04-20
Posts: 1,211

Re: [SOLVED] kernels 4.1 to 4.5: System hangs at boot

How about you download drivedroid on android and the archiso and boot from phone?  That way you can mount partitions, arch-chroot and investigate/fix ?  At the very least, make an attempt to enable your laptop to boot to console then you can continue your troubleshooting.

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#3 2015-08-25 09:44:27

kozaki
Member
From: London >. < Paris
Registered: 2005-06-13
Posts: 671
Website

Re: [SOLVED] kernels 4.1 to 4.5: System hangs at boot

thanks, may try your idea

Finaly booted the Windows XP (sda1) to play some music: Spotify with Flash on XP, errrr feel a real leader atm ':-<>

Last edited by kozaki (2015-08-25 15:31:26)


Seeded last month: Arch 50 gig, derivatives 1 gig
Desktop @3.3GHz 8 gig RAM, linux-ck
laptop #1 Atom 2 gig RAM, Arch linux stock i686 (6H w/ 6yrs old battery smile) #2: ARM Tegra K1, 4 gig RAM, ChrOS
Atom Z520 2 gig RAM, OMV (Debian 7) kernel 3.16 bpo on SDHC | PGP Key: 0xFF0157D9

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#4 2015-08-26 12:39:25

kozaki
Member
From: London >. < Paris
Registered: 2005-06-13
Posts: 671
Website

Re: [SOLVED] kernels 4.1 to 4.5: System hangs at boot

Just some more info for troubleshouting (thanks to chroot smile) and before taking actions.

Surprisingly the last couple boot hanged up on "can't find '/dev/sda5'". Rather interesting as fsck is fine now, and chrooted system runs fine from sda5!

# Config file for Syslinux -
# /boot/syslinux/syslinux.cfg
#
# Comboot modules:
#   * menu.c32 - provides a text menu
#   * vesamenu.c32 - provides a graphical menu
#   * chain.c32 - chainload MBRs, partition boot sectors, Windows bootloaders
#   * hdt.c32 - hardware detection tool
#   * reboot.c32 - reboots the system
#
# To Use: Copy the respective files from /usr/lib/syslinux to /boot/syslinux.
# If /usr and /boot are on the same file system, symlink the files instead
# of copying them.
#
# If you do not use a menu, a 'boot:' prompt will be shown and the system
# will boot automatically after 5 seconds.
#
# Please review the wiki: https://wiki.archlinux.org/index.php/Syslinux
# The wiki provides further configuration examples

DEFAULT archck
PROMPT 1        # Set to 1 if you want to display the boot: prompt, to 0 if you do not want to see it.
TIMEOUT 5
# You can create syslinux keymaps with the keytab-lilo tool
KBDMAP fr-pc.ktl

# Menu Configuration
# Either menu.c32 or vesamenu32.c32 must be copied to /boot/syslinux 
UI menu.c32
#UI vesamenu.c32
MENU RESOLUTION 1024 600
# kozaki- Screen resolution
# hwinfo --framebuffer
# Mode 0x0362: 800x576 (+3200), 24 bits
# Mode 0x0312: 640x480 (+2560), 24 bits
# Mode 0x0314: 800x600 (+1600), 16 bits
# Mode 0x0315: 800x600 (+3200), 24 bits
# Mode 0x0301: 640x480 (+640), 8 bits
# Mode 0x0303: 800x600 (+832), 8 bits

# Refer to http://syslinux.zytor.com/wiki/index.php/Doc/menu
MENU TITLE Arch Linux
#MENU BACKGROUND splash.png
MENU COLOR border       30;44   #40ffffff #a0000000 std
MENU COLOR title        1;36;44 #9033ccff #a0000000 std
MENU COLOR sel          7;37;40 #e0ffffff #20ffffff all
MENU COLOR unsel        37;44   #50ffffff #a0000000 std
MENU COLOR help         37;40   #c0ffffff #a0000000 std
MENU COLOR timeout_msg  37;40   #80ffffff #00000000 std
MENU COLOR timeout      1;37;40 #c0ffffff #00000000 std
MENU COLOR msg07        37;40   #90ffffff #a0000000 std
MENU COLOR tabmsg       31;40   #30ffffff #00000000 std

# boot sections follow

LABEL arch
    MENU LABEL Arch Linux
    LINUX ../vmlinuz-linux
    APPEND root=/dev/sda5 rw quiet loglevel=3
    INITRD ../intel-ucode.img,../initramfs-linux.img
	# Options:
	# - loglevel: to get rid of kernel's message about card reader wwhile it's empty

LABEL archfallback
    MENU LABEL Arch Linux Fallback
    LINUX ../vmlinuz-linux
    APPEND root=/dev/sda5 rw
    INITRD ../intel-ucode.img,../initramfs-linux-fallback.img

# (2) Arch Linux CK Kernel
LABEL archck
	MENU LABEL Arch Linux Linux-CK-Atom BFQ [/boot/vmlinuz-linux-ck]
	LINUX ../vmlinuz-linux-ck
	APPEND root=/dev/sda5 rw quiet loglevel=3 ipv6.disable=1 pcie_aspm=force i915.i915_enable_rc6=1 elevator=bfq vga=0x0314
	INITRD ../intel-ucode.img,../initramfs-linux-ck.img

# (3)
LABEL Fenetre
	MENU LABEL Windows
	COM32 chain.c32
	APPEND hd0 2

Partitions' layout
-----------------------------------
One single disk, S.M.A.R.T.'s fine.

sda
|-sda1                	FAT (Dell Utility)
|-sda2                	NTFS (Windows)
|-sda3                	Ext2 /boot
|-sda5			Ext4 / (Arch)
|-sda6			Ext3 (test OS)
|-sda7			Ext4 (test OS)
|-sda8			Ext4 /data
|-sda9			Ext4 /www
|-sda10			Ext4 /home
|-sda11			Ext4 swap
# 
# /etc/fstab: static file system information
#
# <file system>	<dir>		<type>	<options>				<dump>	<pass>
tmpfs			/tmp		tmpfs	nodev,nosuid			0	0
LABEL=swap		swap		swap  	defaults 0 0
LABEL=arch		/			ext4 	noatime,barrier=0,commit=120,data=writeback,journal_async_commit,errors=remount-ro 0 1
LABEL=data		/data		ext4 	noatime,barrier=0,commit=120,data=writeback,journal_async_commit,errors=remount-ro 0 2
LABEL=home		/home		ext4 	noatime,barrier=0,commit=120,data=writeback,journal_async_commit,errors=remount-ro 0 2
LABEL=www		/var/www	ext4 	noatime,barrier=0,commit=120,data=writeback,journal_async_commit,errors=remount-ro 0 2
LABEL=boot		/boot    	ext2 	defaults		0 2
/dev/sda6    	/mnt/sda6	ext3 	noauto,noatime	0 2
/dev/sda7    	/mnt/sda7	ext4 	noauto,noatime	0 2
# No Auto and Removables:
LABEL=OS			/mnt/wiwi			ntfs-3g	gid=users,umask=0022,noauto,nosuid,nodev,locale=fr_FR.utf8	0	0
LABEL=SAMFAT		/media/SAMFAT		vfat	users,noauto,noatime,flush,umask=111,dmask=000 0 0

The 4 partitions I use in Arch had a superblock date in the future:

# fsck.ext2 -yv /dev/sda3
e2fsck 1.42.12 (29-Aug-2014)
La date de dernière écriture du superbloc est dans le futur.
	(de moins d'un jour, probablement à cause d'une horloge matérielle mal configurée)  Corriger ? oui

# fsck.ext4 -yv /dev/sda5
e2fsck 1.42.12 (29-Aug-2014)
arch : récupération du journal
La date de dernier montage du superbloc est dans le futur.
	(de moins d'un jour, probablement à cause d'une horloge matérielle mal configurée)  Corriger ? oui

# fsck.ext4 -yv /dev/sda8
e2fsck 1.42.12 (29-Aug-2014)
La date de dernier montage du superbloc est dans le futur.
	(de moins d'un jour, probablement à cause d'une horloge matérielle mal configurée)  Corriger ? oui

# fsck.ext4 -yv /dev/sda10
e2fsck 1.42.12 (29-Aug-2014)
La date de dernier montage du superbloc est dans le futur.
	(de moins d'un jour, probablement à cause d'une horloge matérielle mal configurée)  Corriger ? oui

Time settings
----------------------
Time Zone is set as per the wiki https://wiki.archlinux.org/index.php/be … #Time_zone

etc/localtime -> /usr/share/zoneinfo/Europe/Paris
# timedatectl list-timezones 
Failed to create bus connection: Aucun fichier ou dossier de ce type (1 https://github.com/systemd/systemd/issues/798)
# systemctl status time<TAB>Configuration file /usr/lib/systemd/system/fingbox-sentinel.service is marked executable. Please remove executable permission bits. Proceeding anyway.
Running in chroot, ignoring request.
-rwxr-xr-x  1 root root  343 12 mai   14:30 fingbox-sentinel.service*

Chmoded to 644.

Packages
---------------
Updates
May 12
        No Internet connection.
Aug 19-21
    linux (4.0.1-1 -> 4.1.5-1)
    linux-ck-atom (3.19.8-1 -> 4.1.6-1)
    systemd (219-6 -> 224-1)
Aug 26 (in chroot)
        linux (4.1.5-1 -> 4.1.6-1) <------ failed, details in log
        New system update didn't solve the issue.
pacman.log

I did review all *pacnew files ( no more *pacnew files in /etc), and re-generated locales: FR & US.

HOOKS="base modconf keyboard keymap"

in mkinitcpio.conf

Logs
--------
Please type 'sesameOpen' to open any.
2015-08-26 journalctl -e last boot that hanged
2015-08-25 journalctl -b -1 previous
2015-08-19 journalctl -b -26 last successful boot


Seeded last month: Arch 50 gig, derivatives 1 gig
Desktop @3.3GHz 8 gig RAM, linux-ck
laptop #1 Atom 2 gig RAM, Arch linux stock i686 (6H w/ 6yrs old battery smile) #2: ARM Tegra K1, 4 gig RAM, ChrOS
Atom Z520 2 gig RAM, OMV (Debian 7) kernel 3.16 bpo on SDHC | PGP Key: 0xFF0157D9

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#5 2015-08-26 15:27:22

kozaki
Member
From: London >. < Paris
Registered: 2005-06-13
Posts: 671
Website

Re: [SOLVED] kernels 4.1 to 4.5: System hangs at boot

In short, that Intel Atom netbook boots fine with 3x kernels and not (+ hang up) with 4x ones.

Kernel linux Arch 4.1.6:

[2015-08-26 15:59] [PACMAN] Running 'pacman --color auto -Sy'
[2015-08-26 15:59] [PACMAN] synchronizing package lists
[2015-08-26 16:00] [PACMAN] Running 'pacman --color auto -S -u'
[2015-08-26 16:00] [PACMAN] starting full system upgrade
[2015-08-26 16:01] [ALPM] transaction started
[2015-08-26 16:02] [ALPM] upgraded linux (3.16.2-1 -> 4.1.6-1)
[2015-08-26 16:02] [ALPM-SCRIPTLET] >>> Updating module dependencies. Please wait ...
[2015-08-26 16:02] [ALPM-SCRIPTLET] >>> Generating initial ramdisk, using mkinitcpio.  Please wait...
[2015-08-26 16:02] [ALPM-SCRIPTLET] ==> Building image from preset: /etc/mkinitcpio.d/linux.preset: 'default'
[2015-08-26 16:02] [ALPM-SCRIPTLET]   -> -k /boot/vmlinuz-linux -c /etc/mkinitcpio.conf -g /boot/initramfs-linux.img
[2015-08-26 16:02] [ALPM-SCRIPTLET] ==> Starting build: 4.1.6-1-ARCH
[2015-08-26 16:02] [ALPM-SCRIPTLET]   -> Running build hook: [base]
[2015-08-26 16:02] [ALPM-SCRIPTLET]   -> Running build hook: [modconf]
[2015-08-26 16:02] [ALPM-SCRIPTLET]   -> Running build hook: [keyboard]
[2015-08-26 16:02] [ALPM-SCRIPTLET]   -> Running build hook: [keymap]
< SNIP >
[2015-08-26 16:02] [ALPM-SCRIPTLET] ==> Generating module dependencies
[2015-08-26 16:02] [ALPM-SCRIPTLET] ==> Creating gzip-compressed initcpio image: /boot/initramfs-linux-fallback.img
[2015-08-26 16:02] [ALPM-SCRIPTLET] ==> Image generation successful
[2015-08-26 16:02] [ALPM] transaction completed    <--- system hanged

journalctl -b : kernel-linux-4.1.6

Kernel linux-ck-atom 4.1.6:
journalctl -b with linux-ck-atom 4.1.6 (type "sesameOpen" to decrypt the log thanks)

kernel linux-arch downgraded @ 3.16.2: boots and runs.

[2015-08-26 11:04] [PACMAN] Running 'pacman -U linux-3.16.2-1-i686.pkg.tar.xz'
[2015-08-26 11:04] [ALPM] transaction started
[2015-08-26 11:05] [ALPM] downgraded linux (4.1.6-1 -> 3.16.2-1)
[2015-08-26 11:05] [ALPM-SCRIPTLET] >>> Updating module dependencies. Please wait ...
[2015-08-26 11:05] [ALPM-SCRIPTLET] >>> Generating initial ramdisk, using mkinitcpio.  Please wait...
[2015-08-26 11:05] [ALPM-SCRIPTLET] ==> Building image from preset: /etc/mkinitcpio.d/linux.preset: 'default'
[2015-08-26 11:05] [ALPM-SCRIPTLET]   -> -k /boot/vmlinuz-linux -c /etc/mkinitcpio.conf -g /boot/initramfs-linux.img
[2015-08-26 11:05] [ALPM-SCRIPTLET] ==> Starting build: 3.16.2-1-ARCH
[2015-08-26 11:05] [ALPM-SCRIPTLET]   -> Running build hook: [base]
[2015-08-26 11:05] [ALPM-SCRIPTLET]   -> Running build hook: [modconf]
[2015-08-26 11:05] [ALPM-SCRIPTLET]   -> Running build hook: [keyboard]
[2015-08-26 11:05] [ALPM-SCRIPTLET]   -> Running build hook: [keymap]
[2015-08-26 11:05] [ALPM-SCRIPTLET] ==> Generating module dependencies
< SNIP >
[2015-08-26 11:05] [ALPM-SCRIPTLET] ==> Generating module dependencies
[2015-08-26 11:05] [ALPM-SCRIPTLET] ==> Creating gzip-compressed initcpio image: /boot/initramfs-linux-fallback.img
[2015-08-26 11:05] [ALPM-SCRIPTLET] ==> Image generation successful

Kernel Linux-LTS 3.14.51: boots and runs.
This is the only kernel I can boot the netbook with after updating the default kernel.

[2015-08-26 15:26] [ALPM] transaction started
[2015-08-26 15:26] [ALPM] installed linux-lts (3.14.51-1)
[2015-08-26 15:26] [ALPM-SCRIPTLET] >>> Updating module dependencies. Please wait ...
[2015-08-26 15:26] [ALPM-SCRIPTLET] >>> Generating initial ramdisk, using mkinitcpio.  Please wait...
[2015-08-26 15:26] [ALPM-SCRIPTLET] ==> Building image from preset: /etc/mkinitcpio.d/linux-lts.preset: 'default'
[2015-08-26 15:26] [ALPM-SCRIPTLET]   -> -k /boot/vmlinuz-linux-lts -c /etc/mkinitcpio.conf -g /boot/initramfs-linux-lts.img
[2015-08-26 15:26] [ALPM-SCRIPTLET] ==> Starting build: 3.14.51-1-lts
[2015-08-26 15:26] [ALPM-SCRIPTLET]   -> Running build hook: [base]
[2015-08-26 15:26] [ALPM-SCRIPTLET]   -> Running build hook: [modconf]
[2015-08-26 15:26] [ALPM-SCRIPTLET]   -> Running build hook: [keyboard]
[2015-08-26 15:26] [ALPM-SCRIPTLET]   -> Running build hook: [keymap]
< SNIP >
[2015-08-26 15:27] [ALPM-SCRIPTLET] ==> Generating module dependencies
[2015-08-26 15:27] [ALPM-SCRIPTLET] ==> Creating gzip-compressed initcpio image: /boot/initramfs-linux-lts-fallback.img
[2015-08-26 15:27] [ALPM-SCRIPTLET] ==> Image generation successful
[2015-08-26 15:27] [ALPM] transaction completed

journalctl -b : kernel-linux-lts-3.14.51

Various:
There was a "/root/tmp/" in journalctl that I didn't get where it came from.

Question: What's happening with 4x kernels on this netbook :?:

It has [AUR]xf86-video-intel-git (unsupported) installed but how could that prevent booting to console's unclear to me.

EDIT: added journalctl for linux-ck-atom 4.1.6 (fails to boot).

Last edited by kozaki (2015-08-27 19:40:10)


Seeded last month: Arch 50 gig, derivatives 1 gig
Desktop @3.3GHz 8 gig RAM, linux-ck
laptop #1 Atom 2 gig RAM, Arch linux stock i686 (6H w/ 6yrs old battery smile) #2: ARM Tegra K1, 4 gig RAM, ChrOS
Atom Z520 2 gig RAM, OMV (Debian 7) kernel 3.16 bpo on SDHC | PGP Key: 0xFF0157D9

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#6 2015-08-27 19:43:15

kozaki
Member
From: London >. < Paris
Registered: 2005-06-13
Posts: 671
Website

Re: [SOLVED] kernels 4.1 to 4.5: System hangs at boot

Corrected fstab that I had forgotten to remove /tmp from. As a result /tmp was mounted 2 times.

Still, booting this computer with 4x kernels makes the power button my only friend :-o


Seeded last month: Arch 50 gig, derivatives 1 gig
Desktop @3.3GHz 8 gig RAM, linux-ck
laptop #1 Atom 2 gig RAM, Arch linux stock i686 (6H w/ 6yrs old battery smile) #2: ARM Tegra K1, 4 gig RAM, ChrOS
Atom Z520 2 gig RAM, OMV (Debian 7) kernel 3.16 bpo on SDHC | PGP Key: 0xFF0157D9

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#7 2015-08-27 23:46:48

kozaki
Member
From: London >. < Paris
Registered: 2005-06-13
Posts: 671
Website

Re: [SOLVED] kernels 4.1 to 4.5: System hangs at boot

Here comes the new test after editing mkinitcpio.conf as advised by benjarobin from archlinux.fr

grep -Ev  "^ *$|^ *#" /etc/mkinitcpio.conf

MODULES=""
BINARIES=""
FILES=""
HOOKS="base udev autodetect modconf block filesystems keyboard keymap fsck"
COMPRESSION="gzip

# mkinitcpio -p {linux,linux-ck}

Boot hangs (with power button as the only seen escape) as before  :x
- kernel Linux-ARCH 4.1.6 journalctl -b
- kernel Linux-ck-atom 4.1.6 journalctl -b
"sesameOpen" to open log

WTF with this laptop's issue unable to boot with kernels 4x? Good point it forced that banana of me to review fstab and mkinitcpio smile but still why they won't allow the netbook to boot :?:

Last edited by kozaki (2015-08-27 23:47:13)


Seeded last month: Arch 50 gig, derivatives 1 gig
Desktop @3.3GHz 8 gig RAM, linux-ck
laptop #1 Atom 2 gig RAM, Arch linux stock i686 (6H w/ 6yrs old battery smile) #2: ARM Tegra K1, 4 gig RAM, ChrOS
Atom Z520 2 gig RAM, OMV (Debian 7) kernel 3.16 bpo on SDHC | PGP Key: 0xFF0157D9

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#8 2015-09-01 03:11:39

kozaki
Member
From: London >. < Paris
Registered: 2005-06-13
Posts: 671
Website

Re: [SOLVED] kernels 4.1 to 4.5: System hangs at boot

As for the issue, I made as much progress in troubleshouting it than I found inspiring information on it: zero or nada.

Reverting to linux-ck-3.19.8 and Arch runs fine (like with lts), though what does that solve? stays unclear not only for me it looks.

Last edited by kozaki (2015-09-01 03:12:13)


Seeded last month: Arch 50 gig, derivatives 1 gig
Desktop @3.3GHz 8 gig RAM, linux-ck
laptop #1 Atom 2 gig RAM, Arch linux stock i686 (6H w/ 6yrs old battery smile) #2: ARM Tegra K1, 4 gig RAM, ChrOS
Atom Z520 2 gig RAM, OMV (Debian 7) kernel 3.16 bpo on SDHC | PGP Key: 0xFF0157D9

Offline

#9 2015-09-01 16:13:44

nomorewindows
Member
Registered: 2010-04-03
Posts: 3,286

Re: [SOLVED] kernels 4.1 to 4.5: System hangs at boot

There was one time I ran pacman -U on one of my aur packages and the system went completely gone.  Couldn't ssh in, nfs mounts were dead the whole thing was gone.  Just what I had on the screen and the mouse pointer.  Restarting brought it back of course, but it was really bizarre.


I may have to CONSOLE you about your usage of ridiculously easy graphical interfaces...
Look ma, no mouse.

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#10 2015-09-04 13:38:02

kozaki
Member
From: London >. < Paris
Registered: 2005-06-13
Posts: 671
Website

Re: [SOLVED] kernels 4.1 to 4.5: System hangs at boot

@Nomorewindows this issue started after I updated the Linux kernel to 4x, with standard pacman -Syu, after a less standard three months without connection.
boot still freezes atm, anytime I use one of the installed kernel linux-4.1.x. And disappears with their 3.x version.

I've considered the changes in filesystem support in recent kernels. Maybe some of the optimization options in my fstab are unsupported. Am removing them one by one atm: journal_sync_commit makes no difference. Will update as I try the other options.

#                                                                                   
# /etc/fstab: static file system information                                        
#                                                                                   
# <file system> <dir>   <type>  <options>       <dump>  <pass>                      
# System                                                                            
#tmpfs      /tmp        tmpfs nodev,nosuid      0 0                                 
LABEL=swap  swap      swap    defaults 0 0                                          
LABEL=arch  /         ext4  noatime,barrier=0,commit=60,data=writeback,errors=remount-ro 0 1 
LABEL=data  /data     ext4  noatime,barrier=0,commit=120,data=writeback,journal_async_commit,errors=remount-ro 0 2 
LABEL=home  /home     ext4  noatime,barrier=0,commit=120,data=writeback,journal_async_commit,errors=remount-ro 0 2 
LABEL=www   /var/www  ext4  noatime,barrier=0,commit=120,data=writeback,journal_async_commit,errors=remount-ro 0 2 
LABEL=boot  /boot     ext2  defaults    0 2                                         
# No Auto                                                                           
/dev/sda6     /mnt/sda6 ext3  noauto,user,noatime 0 2                               
/dev/sda7     /mnt/sda7 ext4  noauto,user,noatime 0 2                               
LABEL=OS      /mnt/wiwi ntfs-3g noauto,nosuid,nodev,gid=users,umask=0022,locale=fr_FR.utf8  0 0

Seeded last month: Arch 50 gig, derivatives 1 gig
Desktop @3.3GHz 8 gig RAM, linux-ck
laptop #1 Atom 2 gig RAM, Arch linux stock i686 (6H w/ 6yrs old battery smile) #2: ARM Tegra K1, 4 gig RAM, ChrOS
Atom Z520 2 gig RAM, OMV (Debian 7) kernel 3.16 bpo on SDHC | PGP Key: 0xFF0157D9

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#11 2015-09-06 01:42:16

nomorewindows
Member
Registered: 2010-04-03
Posts: 3,286

Re: [SOLVED] kernels 4.1 to 4.5: System hangs at boot

This was a recent lockup under linux 4x while running pacman.


I may have to CONSOLE you about your usage of ridiculously easy graphical interfaces...
Look ma, no mouse.

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#12 2015-09-06 21:43:46

kozaki
Member
From: London >. < Paris
Registered: 2005-06-13
Posts: 671
Website

Re: [SOLVED] kernels 4.1 to 4.5: System hangs at boot

@nomerewindows errr what do you mean there?

Update: Noticed the "Starting Load/Save RFKill Switch Status of rfkill1" when the system hangs at boot with 4x kernels? Well a user made me discover the rfkill package wasn't installed until today:

rfki ??
$ which rfkill
which: no rfkill in <PATHS> [WTF!?]
#pacman -S rfkill

Now that I installed Rfkill-0.5-1 the issue errr stays as it started. Locks up while displaying the "RFKill Switch Status".

journalctl (passw "sesameOpen") for the failed boot attempt with kernel linux-4.1.6-ARCH fallback shows an interesting kernel: Failed to find cpu0 device node and ACPI errors amongst other things hmm
EDIT: Other have the same message (and some, issues) since linux-4.1.2: » linux-4.1.2-2 i686 "Failed to find cpu0 device node" boot msg.

Last edited by kozaki (2015-09-06 22:03:27)


Seeded last month: Arch 50 gig, derivatives 1 gig
Desktop @3.3GHz 8 gig RAM, linux-ck
laptop #1 Atom 2 gig RAM, Arch linux stock i686 (6H w/ 6yrs old battery smile) #2: ARM Tegra K1, 4 gig RAM, ChrOS
Atom Z520 2 gig RAM, OMV (Debian 7) kernel 3.16 bpo on SDHC | PGP Key: 0xFF0157D9

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#13 2015-09-08 12:03:58

kozaki
Member
From: London >. < Paris
Registered: 2005-06-13
Posts: 671
Website

Re: [SOLVED] kernels 4.1 to 4.5: System hangs at boot

Latest kernel linux-4.2.0-3 does not change the game. Anyone with advises on this issue please?

I've installed linux-4.2.0-3-ARCH and rebooted in fallback/single mode. Kernel command line (syslinux) is:

BOOT_IMAGE=../vmlinuz-linux root=UUID=3091d8c0-3bf1-4b51-80c3-9fe280478360 rw initrd=../intel-ucode.img,../initramfs-linux-fallback.img single

Arch boots until it hangs (the issue ;-) ) with a full-black screen (changes from previous 4.1 kernels).

journalctl -b -1 (passw = sesameOpen) still shows 'kernel: Failed to find cpu0 device node' as well twho ACPI errors:

sept. 07 12:17:17 gwenael kernel: ACPI Error: Method parse/execution failed [\_SB_.PCI0._OSC] (Node f543de88), AE_ALREADY_EXISTS (20150619/psparse-536)
sept. 07 12:17:17 gwenael kernel: acpi PNP0A08:00: _OSC failed (AE_ALREADY_EXISTS); disabling ASPM

So I'm back with

uname -rms
Linux 3.19.8-1-ck i686
pacman -Qs linux
local/linux 4.2-3 (base)
    The Linux kernel and modules
local/linux-api-headers 4.1.4-1
    Kernel headers sanitized for use in userspace
local/linux-ck-atom 3.19.8-1 (ck-atom)
    Linux Kernel and modules with the ck1 patchset featuring the Brain
    Fuck Scheduler v0.461. Intel Atom optimized.
local/linux-firmware 20150904.6ebf5d5-1
    Firmware files for Linux
local/linux-lts 3.14.51-1

Seeded last month: Arch 50 gig, derivatives 1 gig
Desktop @3.3GHz 8 gig RAM, linux-ck
laptop #1 Atom 2 gig RAM, Arch linux stock i686 (6H w/ 6yrs old battery smile) #2: ARM Tegra K1, 4 gig RAM, ChrOS
Atom Z520 2 gig RAM, OMV (Debian 7) kernel 3.16 bpo on SDHC | PGP Key: 0xFF0157D9

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#14 2015-09-20 14:38:46

tommykr
Member
From: Poland
Registered: 2009-03-15
Posts: 41

Re: [SOLVED] kernels 4.1 to 4.5: System hangs at boot

You tried add graphics card driver to  /etc/mkinitcpio.conf, ex.:

MODULES="... i915 ..."

and regenerate the initramfs:

mkinitcpio -p linux

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#15 2015-10-22 01:14:42

kozaki
Member
From: London >. < Paris
Registered: 2005-06-13
Posts: 671
Website

Re: [SOLVED] kernels 4.1 to 4.5: System hangs at boot

@tommykr I bet if old Intel graphics support in kernel did changed that far since older 3x there would have been much more related posts but thanks, and --» TODO list.


Seeded last month: Arch 50 gig, derivatives 1 gig
Desktop @3.3GHz 8 gig RAM, linux-ck
laptop #1 Atom 2 gig RAM, Arch linux stock i686 (6H w/ 6yrs old battery smile) #2: ARM Tegra K1, 4 gig RAM, ChrOS
Atom Z520 2 gig RAM, OMV (Debian 7) kernel 3.16 bpo on SDHC | PGP Key: 0xFF0157D9

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#16 2015-12-09 03:25:16

kozaki
Member
From: London >. < Paris
Registered: 2005-06-13
Posts: 671
Website

Re: [SOLVED] kernels 4.1 to 4.5: System hangs at boot

Hey

franck604 wrote:

At the very least, make an attempt to enable your laptop to boot to console then you can continue your troubleshooting.

The little laptop booted into console, always, and then started i3. Tthat must have seemed so casual, I forgot to make it clear right from the beginning, sorry about that.
Nevertheless I added the `i915` module to mkinicpio.conf as tommykr advised to do and rebuilt the kernel, with no visible result.

ANyway that install dated back to 3-4 years, I couldn't update xorg or evdev while running the 3.9x ck-atom kernel, and the partitioning layout was to be improved. So I reinstalled (trying out Architect in the process but it does not yet handle LVM) with the latest Arch-dual 2015-12 x86_64. Downloaded with torrent, shasum and signature all fine.

Live session and install went without a glitch.
The brand new *base* system with everything default kernel included, started just fine, YAISSE! While logged, I started to edit the network config and rebooted (*nothing* else, I mean it). And the boot hanged right like before, at the same line.

I will try other distros that ship a 4x kernel to check how they handle the laptop. If not then I'll know it's a kernel thing and will investigate in this direction. As I've just no idea what's going wrong between Arch with kernel 4+ kernel and this atom netbook.

Meanwhile if someone happen to have some light on that, please feel free to share, please!


Seeded last month: Arch 50 gig, derivatives 1 gig
Desktop @3.3GHz 8 gig RAM, linux-ck
laptop #1 Atom 2 gig RAM, Arch linux stock i686 (6H w/ 6yrs old battery smile) #2: ARM Tegra K1, 4 gig RAM, ChrOS
Atom Z520 2 gig RAM, OMV (Debian 7) kernel 3.16 bpo on SDHC | PGP Key: 0xFF0157D9

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#17 2015-12-10 23:27:48

kozaki
Member
From: London >. < Paris
Registered: 2005-06-13
Posts: 671
Website

Re: [SOLVED] kernels 4.1 to 4.5: System hangs at boot

Antergos stock kernel (I think it's 4.2.5) boots and runs fine with default option (= these of Arch).

linux-lts318 (AUR) by CLaire Farron also boots fine.

Arch stock kernel, *-ck, -zen, -lts or any Arch kernel 4+ hang.

I have no fu**ing clue what's causing Antergos to boot straight on that aging but rather common machine (Intel Atom), but this restricts the options to investigate --at least.


Seeded last month: Arch 50 gig, derivatives 1 gig
Desktop @3.3GHz 8 gig RAM, linux-ck
laptop #1 Atom 2 gig RAM, Arch linux stock i686 (6H w/ 6yrs old battery smile) #2: ARM Tegra K1, 4 gig RAM, ChrOS
Atom Z520 2 gig RAM, OMV (Debian 7) kernel 3.16 bpo on SDHC | PGP Key: 0xFF0157D9

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#18 2015-12-11 20:25:56

kozaki
Member
From: London >. < Paris
Registered: 2005-06-13
Posts: 671
Website

Re: [SOLVED] kernels 4.1 to 4.5: System hangs at boot

As Antergos hanged at boot on second --and else-- boots, just like Arch, I evaluated what did change between first and consecutive boots. The only change I could grasp between them (there may well be other though not from my hands) is the Ethernet connection: unset on first boot after base install vs configured afterward.

kernel linux-4.2.5-1-ARCH boot logs show errors that do not show up in linux-lts318:

Dec 11 19:37:14 gwenael kernel: Linux version 4.2.5-1-ARCH (builduser@tobias) (gcc version 5.2.0 (GCC) ) #1 SMP PREEMPT Tue Oct 27 08:13:28 CET 2015
Dec 11 19:37:14 gwenael kernel: Command line: BOOT_IMAGE=../vmlinuz-linux root=/dev/mapper/vg_sda2-lv_sys1 rw initrd=../initramfs-linux-fallback.img debug acpi=off
...
Dec 11 19:37:16 gwenael systemd[1]: dev-mqueue.mount: Changed mounting-done -> mounted
Dec 11 19:37:16 gwenael systemd[1]: systemd-journald.socket: Incoming traffic
Dec 11 19:37:16 gwenael systemd[1]: systemd-journald.socket: Changed listening -> running
Dec 11 19:37:16 gwenael systemd[1]: Accepted new private connection.
Dec 11 19:37:16 gwenael systemd[1]: Accepted new private connection.
Dec 11 19:37:16 gwenael systemd[1]: Accepted new private connection.
Dec 11 19:37:16 gwenael systemd[1]: Accepted new private connection.
Dec 11 19:37:16 gwenael systemd[1]: Got message type=signal sender=n/a destination=n/a object=/org/freedesktop/systemd1/agent interface=org.freedesktop.systemd1.Agent member=Released cookie=1 reply_cookie=0 error=n/a
Dec 11 19:37:16 gwenael systemd[1]: Got message type=signal sender=n/a destination=n/a object=/org/freedesktop/systemd1/agent interface=org.freedesktop.systemd1.Agent member=Released cookie=1 reply_cookie=0 error=n/a
Dec 11 19:37:16 gwenael systemd[1]: Accepted new private connection.
Dec 11 19:37:16 gwenael systemd[1]: Accepted new private connection.
Dec 11 19:37:16 gwenael systemd[1]: Got message type=signal sender=n/a destination=n/a object=/org/freedesktop/systemd1/agent interface=org.freedesktop.systemd1.Agent member=Released cookie=1 reply_cookie=0 error=n/a
Dec 11 19:37:16 gwenael systemd[1]: Got disconnect on private connection.
Dec 11 19:37:16 gwenael systemd[1]: Got disconnect on private connection.
Dec 11 19:37:16 gwenael systemd[1]: Got message type=signal sender=n/a destination=n/a object=/org/freedesktop/systemd1/agent interface=org.freedesktop.systemd1.Agent member=Released cookie=1 reply_cookie=0 error=n/a
Dec 11 19:37:16 gwenael systemd[1]: Got message type=signal sender=n/a destination=n/a object=/org/freedesktop/systemd1/agent interface=org.freedesktop.systemd1.Agent member=Released cookie=1 reply_cookie=0 error=n/a
Dec 11 19:37:16 gwenael systemd[1]: Got disconnect on private connection.
Dec 11 19:37:16 gwenael systemd[1]: Got disconnect on private connection.
Dec 11 19:37:16 gwenael systemd[1]: Got message type=signal sender=n/a destination=n/a object=/org/freedesktop/systemd1/agent interface=org.freedesktop.systemd1.Agent member=Released cookie=1 reply_cookie=0 error=n/a

private connection or freedesktop.systemd1 do not even show up in linux-lts318:

Dec 10 23:13:29 gwenael kernel: Linux version 3.18.20-1-lts318 (builduser@andes) (gcc version 5.2.0 (GCC) ) #1 SMP PREEMPT Tue Aug 11 23:11:29 BST 2015
Dec 10 23:13:29 gwenael kernel: Command line: BOOT_IMAGE=../vmlinuz-linux-lts318 root=/dev/mapper/vg_sda2-lv_sys1 rw initrd=../initramfs-linux-lts318.img
...

I then

  • blacklisted the `Qualcomm Atheros AR9285 Wireless Network Adapter (PCI-Express) (rev 01)` and rebuilt the kernel

  • disabled wireless, then Ethernet in the BIOS

  • booted the stock kernel with "acpi=off"

But none of these stopped linux-4x hanging up at boot, right at the same point each try.
System runs fine with linux-lts318 but this is quite not optimal, is it?


Seeded last month: Arch 50 gig, derivatives 1 gig
Desktop @3.3GHz 8 gig RAM, linux-ck
laptop #1 Atom 2 gig RAM, Arch linux stock i686 (6H w/ 6yrs old battery smile) #2: ARM Tegra K1, 4 gig RAM, ChrOS
Atom Z520 2 gig RAM, OMV (Debian 7) kernel 3.16 bpo on SDHC | PGP Key: 0xFF0157D9

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#19 2015-12-13 14:36:42

kozaki
Member
From: London >. < Paris
Registered: 2005-06-13
Posts: 671
Website

Re: [SOLVED] kernels 4.1 to 4.5: System hangs at boot

Really no one has an idea about this?

  • archiso-2015-12-01 boots and runs just fine live (went with the x86_64 this time)

    Dec 12 23:27:56 archiso kernel: Linux version 4.2.5-1-ARCH (builduser@tobias) (gcc version 5.2.0 (GCC) ) #1 SMP PREEMPT Tue Oct 27 08:13:28 CET 2015
    Dec 12 23:27:56 archiso kernel: Command line: BOOT_IMAGE=boot/x86_64/vmlinuz archisobasedir=arch archisolabel=ARCH_201512 initrd=boot/intel_ucode.img,boot/x86_64/archiso.img
  • archlinux x86_64 installed boots and run without a glitch upon first boot (I did a new install and could reproduce)

    déc. 13 03:18:37 gwenael kernel: Linux version 4.2.5-1-ARCH (builduser@tobias) (gcc version 5.2.0 (GCC) ) #1 SMP PREEMPT Tue Oct 27 08:13:28 CET 2015
    déc. 13 03:18:37 gwenael kernel: Command line: BOOT_IMAGE=../vmlinuz-linux root=/dev/mapper/vg1-sys1 rw initrd=../initramfs-linux.img
  • Any consecutive boot or reboot starts, goes on with *all* boot lines '[OK]'...
    then hangs upon displaying 'mounting partitions' / 'Starting Load/Save RFKill Switch Status of rfkill1...'

    [OK] Mounted /tmp
    [OK] Started Flush Joirnalto Persistent storage
    [OK] Created slice system-systemd\xdrfkill.slice
          Starting Load/Save RFKill Switch Status of rfkill1...    <-- on screen when boot hangs 

Upon first re-install I tried any kernel cheat code that I knew/found, i.e:
- acpi=off / nolapic / noapictimer
- nohz=off / highres=off
- pci=nocrs
- nmi_whatchdog=2
- even `reboot={acpi,force,pci...}` ones, though I doubt it could help but hey!
Freeze each time, at the same point +/- a few lines after "RF Kill"

Commented out every line but « / » in fstab

Deactivated any options in the BIOS (very few on that Dell Intell netbook), e.g. Wireless, NUC, Speedstep; tried with AHCI/ATA modes.

With any kernel 3x the box works just fine; Arch (and various live systems) boot and runs *good*

Also the systems does *not* even start to boot if the 'intel-ucode' is present:

INITRD ../intel-ucode,..initramfs-linux.img' 

Removing it allow a successful booting.

Is there anything else I can do or show up while the system is on with the latest ARCH kernel?

Last edited by kozaki (2015-12-13 14:39:30)


Seeded last month: Arch 50 gig, derivatives 1 gig
Desktop @3.3GHz 8 gig RAM, linux-ck
laptop #1 Atom 2 gig RAM, Arch linux stock i686 (6H w/ 6yrs old battery smile) #2: ARM Tegra K1, 4 gig RAM, ChrOS
Atom Z520 2 gig RAM, OMV (Debian 7) kernel 3.16 bpo on SDHC | PGP Key: 0xFF0157D9

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#20 2015-12-27 15:15:12

kozaki
Member
From: London >. < Paris
Registered: 2005-06-13
Posts: 671
Website

Re: [SOLVED] kernels 4.1 to 4.5: System hangs at boot


Seeded last month: Arch 50 gig, derivatives 1 gig
Desktop @3.3GHz 8 gig RAM, linux-ck
laptop #1 Atom 2 gig RAM, Arch linux stock i686 (6H w/ 6yrs old battery smile) #2: ARM Tegra K1, 4 gig RAM, ChrOS
Atom Z520 2 gig RAM, OMV (Debian 7) kernel 3.16 bpo on SDHC | PGP Key: 0xFF0157D9

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#21 2015-12-27 17:34:58

hilltownboy
Member
From: Massachusetts
Registered: 2013-08-15
Posts: 100

Re: [SOLVED] kernels 4.1 to 4.5: System hangs at boot

Thanks kozaki for your investigation of this problem.  With me it came with upgrade from kernel 4.2.3-1 to 4.2.5-1, so I had to go back to 4.2.3-1

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#22 2015-12-27 21:55:16

kozaki
Member
From: London >. < Paris
Registered: 2005-06-13
Posts: 671
Website

Re: [SOLVED] kernels 4.1 to 4.5: System hangs at boot

Hey hilltown. You're luckier! Being stuck on 3x has errr its charm, like unable to access my big xfs drive.
Actualy not on 3x since I built linux-4.0.7-2-ARCH on the Atom and that one boots fine --if intel_ucode isi removed from the cheatcodes.

Last edited by kozaki (2015-12-27 21:56:11)


Seeded last month: Arch 50 gig, derivatives 1 gig
Desktop @3.3GHz 8 gig RAM, linux-ck
laptop #1 Atom 2 gig RAM, Arch linux stock i686 (6H w/ 6yrs old battery smile) #2: ARM Tegra K1, 4 gig RAM, ChrOS
Atom Z520 2 gig RAM, OMV (Debian 7) kernel 3.16 bpo on SDHC | PGP Key: 0xFF0157D9

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#23 2016-01-01 23:11:22

kozaki
Member
From: London >. < Paris
Registered: 2005-06-13
Posts: 671
Website

Re: [SOLVED] kernels 4.1 to 4.5: System hangs at boot

Best wishes for a new year smile

Just a not as I booted with linux 4.4.0-rc7-mainline and at first thought it booted til the console...

Yeah, but it was the recovery shell. Next boots with 4.4.0-rc7 freezed at the same (apparent) stage, well into the boot process. E.g. config files are read and systemd-vconsole-setup succeeds. Little difference compared to the stock kernel. Joined the failed boot logs with the other @ https://bugs.archlinux.org/task/47509


Seeded last month: Arch 50 gig, derivatives 1 gig
Desktop @3.3GHz 8 gig RAM, linux-ck
laptop #1 Atom 2 gig RAM, Arch linux stock i686 (6H w/ 6yrs old battery smile) #2: ARM Tegra K1, 4 gig RAM, ChrOS
Atom Z520 2 gig RAM, OMV (Debian 7) kernel 3.16 bpo on SDHC | PGP Key: 0xFF0157D9

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#24 2016-02-05 18:11:15

kozaki
Member
From: London >. < Paris
Registered: 2005-06-13
Posts: 671
Website

Re: [SOLVED] kernels 4.1 to 4.5: System hangs at boot

. . . Update

1/ Arch x86_64 and i686
Linux mainline 4.4.1 hangs like the other 4.1x kernels.

Re-installed Arch x86 and can reproduce as with the x86_64 version of the distro. E.g. kernel linux-lts3.18 (re)boots fine.

Hang also happens after I unplugged any external device from the laptop.

2/ Fedora 23
I installed Fedora 23 on a spare logical partition and tested various 4x kernels, to confirm it's upstream issue. Here follow the results:

linux-4.2.3-300.fc23:
Runs just fine on first boot-up after installing the distro --> same as Arch.
Hangs upon the following boots --> same as Arch.

linux-4.3.3-301.fc23 and 4.1.0-1.fc23
Hang upon boot-up --> same as Arch.

linux-4.0.8-300.fc22
Boots up to the gui login / tty (where I can't login for some unknown hostname reason).
After it freezes, I can't see anything in the logs about a kernel panic which is making me think this is some kind of serious fault as the kernel doesn't even have chance to log any related output that I can grasp.

There are other bug reporting a similar critical issue though with later kernel versions, eg #45877 and #46894.
On the later a guy advised to continue the discussion on https://bugzilla.kernel.org/show_bug.cgi?id=110131
He also said « all the people encountering the bug were using UEFI » which does not seem to be the case for everyone using Arch --and my laptop is purely BIOS.

I'd be happy to provide further information/testing if it can be helpful.
Your advices are welcome!


Seeded last month: Arch 50 gig, derivatives 1 gig
Desktop @3.3GHz 8 gig RAM, linux-ck
laptop #1 Atom 2 gig RAM, Arch linux stock i686 (6H w/ 6yrs old battery smile) #2: ARM Tegra K1, 4 gig RAM, ChrOS
Atom Z520 2 gig RAM, OMV (Debian 7) kernel 3.16 bpo on SDHC | PGP Key: 0xFF0157D9

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#25 2016-02-05 18:20:39

Bruinn
Member
Registered: 2016-01-22
Posts: 4

Re: [SOLVED] kernels 4.1 to 4.5: System hangs at boot

I have not completely read all of your post but are you trying to boot into a desktop environment?

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