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generated by cgit v1.2.3-54-g00ecf (git 2.39.0) at 2024-10-20 19:53:05 +0000
ct page memmap by default. However, that approach was abandoned when Christoph ported the patches [1], and that functionality has since been replaced by devm_memremap_pages(). In the meantime, this max_pfn manipulation is confusing kdump [2] that assumes that everything covered by the max_pfn is "System RAM". This results in kdump hanging or crashing. [1]: https://lists.01.org/pipermail/linux-nvdimm/2015-March/000348.html [2]: https://bugzilla.redhat.com/show_bug.cgi?id=1351098 So fix it. Reported-by: Zhang Yi <yizhan@redhat.com> Reported-by: Jeff Moyer <jmoyer@redhat.com> Tested-by: Zhang Yi <yizhan@redhat.com> Signed-off-by: Dan Williams <dan.j.williams@intel.com> Reviewed-by: Jeff Moyer <jmoyer@redhat.com> Cc: <stable@vger.kernel.org> # v4.1 and later kernels Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Boaz Harrosh <boaz@plexistor.com> Cc: Christoph Hellwig <hch@lst.de> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Ross Zwisler <ross.zwisler@linux.intel.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: linux-nvdimm@lists.01.org Fixes: ec776ef6bbe1 ("x86/mm: Add support for the non-standard protected e820 type") Link: http://lkml.kernel.org/r/147448744538.34910.11287693517367139607.stgit@dwillia2-desk3.amr.corp.intel.com Signed-off-by: Ingo Molnar <mingo@kernel.org>
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