Hi Kazu
---
                  machspec: 563535cf4cc0
                   struct_page_size: 0
                                VA_BITS: 39
  CONFIG_ARM64_VA_BITS: 39
                             VA_START: fffffffffc000000
                VA_BITS_ACTUAL: 27     // invalid value
CONFIG_ARM64_KERNELPACMASK: (unused)
                      userspace_top: 0000000008000000    // invalid value
crash> vabits_actual
vabits_actual = $1 = 39
Thanks,
Guanyou
Guanyou Chen <chenguanyou9338(a)gmail.com> 于2024年3月28日周四 10:48写道:
 Hi Kazu, Lianbo
 vmcoreinfo "tcr_el1_t1sz" should be a decimal number.
 Before:
 vmcoreinfo : vabits_actual: 27
 After:
 vmcoreinfo : vabits_actual: 39
 Fixes: 28f0833037b2 ("Fix arm64: rewrite the arm64_get_vmcoreinfo_ul to
 arm64_get_vmcoreinfo")
 Signed-off-by: chenguanyou <chenguanyou(a)xiaomi.com>
 ---
  arm64.c | 4 ++--
  1 file changed, 2 insertions(+), 2 deletions(-)
 diff --git a/arm64.c b/arm64.c
 index af0e0d7..e36c723 100644
 --- a/arm64.c
 +++ b/arm64.c
 @@ -4656,8 +4656,8 @@ arm64_set_va_bits_by_tcr(void)
  {
     ulong value;
 -   if (arm64_get_vmcoreinfo(&value, "NUMBER(TCR_EL1_T1SZ)", NUM_HEX) ||
 -       arm64_get_vmcoreinfo(&value, "NUMBER(tcr_el1_t1sz)", NUM_HEX)) {
 +   if (arm64_get_vmcoreinfo(&value, "NUMBER(TCR_EL1_T1SZ)", NUM_DEC) ||
 +       arm64_get_vmcoreinfo(&value, "NUMBER(tcr_el1_t1sz)", NUM_DEC)) {
         /* See ARMv8 ARM for the description of
          * TCR_EL1.T1SZ and how it can be used
          * to calculate the vabits_actual
 --
 2.39.0
 Thanks,
 Guanyou