1. It’s odd. Because looking at the commit log, that particular export was only just added…

   So it seems odd that it wants it. It must use something that now uses that feature.

   https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/arch/x86/mm/init.c?id=281d4078bec366d60990add9d91a952953bd0d72

   Reply ↓

   • I tried removing the additions to init.c in 3.19-rc5, and recompiled, and got:
     
arch/x86/built-in.o: In function `mp_register_ioapic':
(.text+0x401f1): undefined reference to `__cachemode2pte_tbl'
arch/x86/built-in.o: In function `update_cache_mode_entry':
(.text+0x467ea): undefined reference to `__pte2cachemode_tbl'
arch/x86/built-in.o: In function `update_cache_mode_entry':
(.text+0x467f7): undefined reference to `__cachemode2pte_tbl'
arch/x86/built-in.o: In function `__ioremap_caller':
ioremap.c:(.text+0x48b8a): undefined reference to `__cachemode2pte_tbl'
ioremap.c:(.text+0x48c94): undefined reference to `__cachemode2pte_tbl'
ioremap.c:(.text+0x48cb3): undefined reference to `__cachemode2pte_tbl'
arch/x86/built-in.o: In function `ioremap_prot':
(.text+0x48d6c): undefined reference to `__pte2cachemode_tbl'
arch/x86/built-in.o: In function `change_page_attr_set_clr':
pageattr.c:(.text+0x4b29d): undefined reference to `__pte2cachemode_tbl'
arch/x86/built-in.o: In function `_set_memory_array':
pageattr.c:(.text+0x4b663): undefined reference to `__cachemode2pte_tbl'
pageattr.c:(.text+0x4b6c3): undefined reference to `__cachemode2pte_tbl'
arch/x86/built-in.o: In function `_set_pages_array':
pageattr.c:(.text+0x4b7d3): undefined reference to `__cachemode2pte_tbl'
pageattr.c:(.text+0x4b80b): undefined reference to `__cachemode2pte_tbl'
arch/x86/built-in.o: In function `_set_memory_uc':
(.text+0x4b907): undefined reference to `__cachemode2pte_tbl'
arch/x86/built-in.o:(.text+0x4ba40): more undefined references to `__cachemode2pte_tbl' follow
arch/x86/built-in.o: In function `reserve_pfn_range':
pat.c:(.text+0x4cfc5): undefined reference to `__pte2cachemode_tbl'
pat.c:(.text+0x4cfe7): undefined reference to `__cachemode2pte_tbl'
pat.c:(.text+0x4cff6): undefined reference to `__cachemode2pte_tbl'
arch/x86/built-in.o: In function `track_pfn_remap':
(.text+0x4d193): undefined reference to `__cachemode2pte_tbl'
arch/x86/built-in.o: In function `track_pfn_insert':
(.text+0x4d1f6): undefined reference to `__cachemode2pte_tbl'
arch/x86/built-in.o: In function `map_vdso':
vma.c:(.text+0x72c39): undefined reference to `__cachemode2pte_tbl'
arch/x86/built-in.o:(.init.text+0x108d6): more undefined references to `__cachemode2pte_tbl' follow
Makefile:925: recipe for target 'vmlinux' failed
make: *** [vmlinux] Error 1

     So presumably the NVIDIA driver uses one of these..?

     RG

     Reply ↓

This site uses Akismet to reduce spam. Learn how your comment data is processed.