Public bug reported:
I noticed a forever-looping test of linuxinfo on i386 this morning. This
test upgrades the kernel to 4.9 in -proposed; as soon as that reboots,
the VM never comes back. nova console-log shows:
[ 1.581188] Freeing unused kernel memory: 996K (dcc37000 - dcd30000)
[ 1.582525] Write protecting the kernel text: 8300k
[ 1.583624] Write protecting the kernel read-only data: 3344k
[ 1.584845] NX-protecting the kernel data: 6036k
[ 1.585921] ------------[ cut here ]------------
[ 1.586861] WARNING: CPU: 0 PID: 1 at
/build/linux-UWDXbt/linux-4.9.0/arch/x86/mm/dump_pagetables.c:225
note_page+0x6a1/0x880
[ 1.589199] x86/mm: Found insecure W+X mapping at address c00a0000/0xc00a0000
[ 1.590657] Modules linked in:
[ 1.591305] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 4.9.0-1-generic
#2-Ubuntu
[ 1.592809] Hardware name: OpenStack Foundation OpenStack Nova, BIOS Bochs
01/01/2011
[ 1.593188] dae89e70 dc3e0b05 dae89eb4 dca47958 dae89ea0 dc07299a dca47920
dae89ed4
[ 1.593188] 00000001 dca47958 000000e1 dc068db1 000000e1 dae89f34 80000000
00000000
[ 1.593188] dae89ec0 dc072a06 00000009 00000000 dae89eb4 dca47920 dae89ed4
76601e21
[ 1.593188] Call Trace:
[ 1.593188] [<dc3e0b05>] dump_stack+0x58/0x73
[ 1.593188] [<dc07299a>] __warn+0xea/0x110
[ 1.593188] [<dc068db1>] ? note_page+0x6a1/0x880
[ 1.593188] [<dc072a06>] warn_slowpath_fmt+0x46/0x60
[ 1.593188] [<dc068db1>] note_page+0x6a1/0x880
[ 1.593188] [<dc069185>] ptdump_walk_pgd_level_core+0x1f5/0x300
[ 1.593188] [<dc0692c6>] ptdump_walk_pgd_level_checkwx+0x16/0x20
[ 1.593188] [<dc05eafd>] mark_rodata_ro+0xfd/0x130
[ 1.593188] [<dc80d800>] ? rest_init+0x70/0x70
[ 1.593188] [<dc80d82c>] kernel_init+0x2c/0x100
[ 1.593188] [<dc09d641>] ? schedule_tail+0x11/0x50
[ 1.593188] [<dc80d800>] ? rest_init+0x70/0x70
[ 1.593188] [<dc8185c3>] ret_from_fork+0x1b/0x28
[ 1.613361] ---[ end trace d63b34644638754d ]---
[ 1.614368] x86/mm: Checked W+X mappings: FAILED, 96 W+X pages found.
...
Begin: Waiting for root file system ... Begin: Running /scripts/local-block ...
done.
Begin: Running /scripts/local-block ... done.
[... repeating some 50 times... ]
Begin: Running /scripts/local-block ... done.
done.
Gave up waiting for root device. Common problems:
- Boot args (cat /proc/cmdline)
- Check rootdelay= (did the system wait long enough?)
- Check root= (did the system wait for the right device?)
- Missing modules (cat /proc/modules; ls /dev)
ALERT! UUID=ac6eb865-17d6-469d-b58e-8c0d49174fe4 does not exist. Dropping to
a shell!
BusyBox v1.22.1 (Ubuntu 1:1.22.0-19ubuntu2) built-in shell (ash)
Enter 'help' for a list of built-in commands.
(initramfs)
** Affects: linux (Ubuntu)
Importance: Undecided
Status: New
** Tags: bot-stop-nagging
** Tags added: bot-stop-nagging
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https://bugs.launchpad.net/bugs/1642192
Title:
i386 4.9 in -proposed fails to boot in cloud instances
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