System hangs at GRUB loading screen every warm boot since 2.6.37-3.11 seemingly due to nx-emu patch
Affects | Status | Importance | Assigned to | Milestone | |
---|---|---|---|---|---|
grub2 (Ubuntu) |
Fix Released
|
High
|
Colin Watson | ||
Natty |
Fix Released
|
High
|
Colin Watson |
Bug Description
Ever since the 2.6.37-3.11 kernel I have been unable to reboot the machine without a physical power off because the system will hang early in the boot process on the GRUB loading screen before the kernel selection menu comes up. Booting 2.6.37-2.10 and then rebooting works fine, but every kernel tested after that will hang. This problem does not happen in any of the 2.6.37 mainline kernels or in the maverick kernels.
Booting with noexec=off doesn't change the behavior.
For each step in this bisect I booted into the new kernel and then rebooted to verify the behavior. The problem happens 100% of the time after a reboot on this machine on an affected kernel.
---
Bisect log:
git bisect start
# bad: [ec3990d4ab8c3b
git bisect bad ec3990d4ab8c3b6
# bad: [ec3990d4ab8c3b
git bisect bad ec3990d4ab8c3b6
# good: [f814d1e47c8e42
git bisect good f814d1e47c8e427
# good: [f814d1e47c8e42
git bisect good f814d1e47c8e427
# good: [f814d1e47c8e42
git bisect good f814d1e47c8e427
# bad: [7aa61c989b468c
git bisect bad 7aa61c989b468cf
# bad: [e4fb20387f91c2
git bisect bad e4fb20387f91c24
# good: [f911aa4eba9b8f
git bisect good f911aa4eba9b8fa
# bad: [810fec489f2620
git bisect bad 810fec489f2620a
sarvatt@
ed6f363a412661f
commit ed6f363a412661f
Author: Roland McGrath <email address hidden>
Date: Wed Jul 14 00:50:02 2010 -0700
i386: NX emulation
This is old code with some cruft, all originally by Ingo with much
later rebasing by Fedora folks and at least one arcane fix by Roland
a few years ago.
Signed-off-by: Roland McGrath <email address hidden>
Signed-off-by: Kees Cook <email address hidden>
Signed-off-by: Andy Whitcroft <email address hidden>
:040000 040000 17e4b20dfd007b5
:040000 040000 82c83fb772dc075
:040000 040000 b4ee24518996472
:040000 040000 074de35017a1fe9
:040000 040000 26606ab7d024864
---
ProblemType: Bug
DistroRelease: Ubuntu 11.04
Package: linux-image-
Regression: Yes
ProcVersionSign
Uname: Linux 2.6.37-8-generic i686
Architecture: i386
Date: Tue Dec 7 13:58:41 2010
ProcEnviron:
PATH=(custom, user)
LANG=en_US.UTF-8
SHELL=/bin/bash
SourcePackage: linux
Related branches
summary: |
System hangs at GRUB loading screen every warm boot since 2.6.37-3.11 + seemingly due to nx-emu patch |
tags: | added: kernel-series-unknown |
Changed in linux (Ubuntu): | |
status: | New → Incomplete |
status: | Incomplete → Triaged |
status: | Triaged → Confirmed |
importance: | Undecided → High |
assignee: | nobody → Andy Whitcroft (apw) |
affects: | linux (Ubuntu Natty) → grub2 (Ubuntu Natty) |
Changed in grub2 (Ubuntu Natty): | |
assignee: | Andy Whitcroft (apw) → Colin Watson (cjwatson) |
If there are any other info that would be useful please let me know, apport left a lot to be desired here.