** Tags removed: verification-needed-wily
** Tags added: verification-done-wily
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Title:
kernel crash on m400 arm64 server cartridge
This bug is awaiting verification that the kernel in -proposed solves
the problem. Please test the kernel and update this bug with the
results. If the problem is solved, change the tag 'verification-needed-
wily' to 'verification-done-wily'.
If verification is not done by 5 working days from today
This bug was fixed in the package linux - 4.2.0-16.19
---
linux (4.2.0-16.19) wily; urgency=low
[ Tim Gardner ]
* Release Tracking Bug
- LP: #1504143
* [Config] CONFIG_X86_LEGACY_VM86=y, CONFIG_VM86=y for i386
- LP: #1499089
* [Config] CONFIG_MODIFY_LDT_SYSCALL=y
UBUNTU: [Config] CONFIG_ARM64_ERRATUM_843419=n
** Changed in: linux (Ubuntu Wily)
Status: In Progress => Fix Committed
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Title:
So, no need to revert the NUMA patches ?
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Title:
kernel crash on m400 arm64 server cartridge
Status in linux package in Ubuntu:
F
This appears to be the regression. Rebuilding the kernel w/
CONFIG_ARM64_ERRATUM_843419=n works around it.
commit bf0cdf4bfb785129798bc42d6ee8e2558f0934da
Author: Will Deacon
Date: Tue Mar 17 12:15:02 2015 +
arm64: errata: add module build workaround for erratum #843419
commit
fyi, though I do see this backtrace when booting up an X-Gene, in my
case it isn't fatal.
Rather, I'm hitting an issue later on where modules cannot load, and
*that* is fatal. It persists even w/ the numa patches removed.
Loading, please wait...
@dann - check tip of Wily master-next to review my reverts.
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Title:
kernel crash on m400 arm64 server cartridge
Status in linux pac
@Tim: Please do - the dtb interface for numa is still in discussion, so
I think we can expect the OS/fw interface to change anyway.
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T
Craig - shall I revert the arm64 NUMA patches ?
** Also affects: linux (Ubuntu Wily)
Importance: Critical
Status: Confirmed
** Changed in: linux (Ubuntu Wily)
Status: Confirmed => In Progress
** Changed in: linux (Ubuntu Wily)
Assignee: (unassigned) => Tim Gardner (timg-tpi
The crash does not reproduce when running with kernel 4.2.0-12.14 .
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Title:
kernel crash on m400 arm64 server cartridge
Status in l
Can you see if the crash still occurs if you boot with the 4.2.0-12.14 kernel?
It can be downloaded from:
https://launchpad.net/ubuntu/+source/linux/4.2.0-12.14
** Tags added: kernel-key
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** Changed in: linux (Ubuntu)
Importance: Undecided => Critical
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Title:
kernel crash on m400 arm64 server cartridge
Status in li
Here is a bit more of that code for context:
static int __init numa_register_memblks(struct numa_meminfo *mi)
{
unsigned long uninitialized_var(pfn_align);
int i, nid;
/* Account for nodes with cpus and no memory */
node_possible_map = numa_nodes_parsed;
nu
ARM64 NUMA was added and enabled in 4.2.0-13.15, which apparently breaks
on the m400.
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Title:
kernel crash on m400 arm64 server cart
The dump stack comes from this according to the trace:
if (WARN_ON(nodes_empty(node_possible_map)))
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Title:
kernel crash on
marked as confirmed.
I collected info running trusty kernel as current wily wont boot.
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Title:
kernel crash on m400 arm64 server car
apport information
** Tags added: apport-collected trusty uec-images
** Description changed:
We've made some progress on bug 1499869 , such that on Friday I actually had
successful installs.
An attempt at an install today shows a kernel stack trace early in the boot,
then the initramfs not
** Changed in: linux (Ubuntu)
Status: Incomplete => Confirmed
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Title:
kernel crash on m400 arm64 server cartridge
Status in
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