Messages in this thread | | | From | Dan Williams <> | Date | Sat, 8 Apr 2017 00:02:06 -0700 | Subject | Re: KASLR causes intermittent boot failures on some systems |
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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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