Kernel设置为64K PageSize后 无法启动

[Xinmudotmoe]

同时 大多数elf的配置中对齐为0x4000(16k) 这可能与ld.bfd的代码有关

Program Headers:
  Type           Offset             VirtAddr           PhysAddr
                 FileSiz            MemSiz              Flags  Align
  LOAD           0x0000000000000000 0x0000000000000000 0x0000000000000000
                 0x0000000000027a6c 0x0000000000027a6c  R E    `0x4000`
  LOAD           0x000000000002af30 0x000000000002af30 0x000000000002af30
                 0x00000000000021f0 0x0000000000002390  RW     `0x4000`
  DYNAMIC        0x000000000002bec0 0x000000000002bec0 0x000000000002bec0
                 0x0000000000000140 0x0000000000000140  RW     0x8
  GNU_EH_FRAME   0x00000000000242b0 0x00000000000242b0 0x00000000000242b0
                 0x000000000000088c 0x000000000000088c  R      0x4
  GNU_STACK      0x0000000000000000 0x0000000000000000 0x0000000000000000
                 0x0000000000000000 0x0000000000000000  RW     0x10
  GNU_RELRO      0x000000000002af30 0x000000000002af30 0x000000000002af30
                 0x00000000000010d0 0x00000000000010d0  R      0x1

[chenhuacai]

不能构建那前面的panic从何而来？

[Xinmudotmoe]

不能构建那前面的panic从何而来？

关掉透明大页配置后构建出来的

[chenhuacai]

ARCH_FORCE_MAX_ORDER设置的是多少？

[Xinmudotmoe]

ARCH_FORCE_MAX_ORDER设置的是多少？

CONFIG_ARCH_FORCE_MAX_ORDER=11
CONFIG_PAGE_SIZE_64KB=y

不过看arch/loongarch/Kconfig 的话, ARCH_FORCE_MAX_ORDER有default "13" if PAGE_SIZE_64KB
问题是否出在make defconfig?

[chenhuacai]

make defconfig应该做不到非常智能地解决这个问题。

[xry111]

Just put a static_assert to reject invalid ARCH_FORCE_MAX_ORDER + PAGE_SIZE combinations and tell the user to adjust ARCH_FORCE_MAX_ORDER?