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| Path | csiph.com!aioe.org!bofh.it!news.nic.it!robomod |
|---|---|
| From | Dan Williams <dan.j.williams@gmail.com> |
| Newsgroups | linux.kernel |
| Subject | Re: KASLR causes intermittent boot failures on some systems |
| Date | Sat, 08 Apr 2017 09:10:01 +0200 |
| Message-ID | <ttSFr-2bx-3@gated-at.bofh.it> (permalink) |
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| X-Original-Cc | Jeff Moyer <jmoyer@redhat.com>, Linux Kernel Mailing List <linux-kernel@vger.kernel.org>, "linux-nvdimm@lists.01.org" <linux-nvdimm@lists.01.org>, thgarnie@google.com, Ingo Molnar <mingo@kernel.org> |
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On Fri, Apr 7, 2017 at 9:08 PM, Baoquan He <bhe@redhat.com> wrote:
> On 04/07/17 at 10:41am, Jeff Moyer wrote:
>> Hi,
>>
>> commit 021182e52fe01 ("x86/mm: Enable KASLR for physical mapping memory
>> regions") causes some of my systems with persistent memory (whether real
>> or emulated) to fail to boot with a couple of different crash
>> signatures. The first signature is a NMI watchdog lockup of all but 1
>> cpu, which causes much difficulty in extracting useful information from
>> the console. The second variant is an invalid paging request, listed
>> below.
>>
>> On some systems, I haven't hit this problem at all. Other systems
>> experience a failed boot maybe 20-30% of the time. To reproduce it,
>> configure some emulated pmem on your system. You can find directions
>> for that here: https://nvdimm.wiki.kernel.org/
>
> I got below problem when configure ndctl, didn't find a package named
> libkmod:
>
> ~~~~~~~~~
> configure: error: Package requirements (libkmod) were not met:
>
> No package 'libkmod' found
kmod-devel provides that dependency. Otherwise ndctl is included in
Fedora or you can find EPEL 7 packages here:
https://copr.fedorainfracloud.org/coprs/djbw/ndctl/
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Re: KASLR causes intermittent boot failures on some systems Dan Williams <dan.j.williams@gmail.com> - 2017-04-08 09:10 +0200 Re: KASLR causes intermittent boot failures on some systems Baoquan He <bhe@redhat.com> - 2017-04-08 10:00 +0200
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