Re: [Crash-utility] arm64: doesn't work for kernel v5.4?
Hi Akashi,
On Thu, Oct 3, 2019 at 10:49 AM AKASHI Takahiro
<takahiro.akashi(a)linaro.org> wrote:
Hi Dave,
I tried to use crash v7.2.7 with kernel v5.4-rc1 on arm64.
1. VA_BITS_ACTUAL is missing in vmcoreinfo.
Does anyone work on fixing it on kernel side?
(just adding one or two lines though)
I am working on the changes in the vmcoreinfo after the 52-bit VA
changes from Steve were accepted in Linux 5.4-rc1 ("Support for 52-bit
virtual addressing in kernel space").
The suggestions during the last set of reviews (my v3 patchset) was to
introduce arch specific details like TCR_EL1.TxSZ in the vmcoreinfo
and also to wait for the 52-bit changes to make way upstream (as I
raised a couple of issues/kernel panic issues) earlier with the 52-bit
VA changes from Steve.
I plan to send out the v4 patchset later this week (and will Cc you).
Thanks,
Bhupesh
2. With a tweak above, I still fail to run crash with vmcore
seeing the following errors;
(I didn't dig into details)
crash-arm64: invalid kernel virtual address: ffff800010c689a8 type:
"kernel_config_data"
WARNING: cannot read kernel_config_data
crash-arm64: invalid kernel virtual address: ffff80001177a160 type:
"possible"
WARNING: cannot read cpu_possible_map
crash-arm64: invalid kernel virtual address: ffff80001177a140 type:
"present"
WARNING: cannot read cpu_present_map
crash-arm64: invalid kernel virtual address: ffff80001177a120 type:
"online"
WARNING: cannot read cpu_online_map
crash-arm64: invalid kernel virtual address: ffff80001177a188 type:
"active"
WARNING: cannot read cpu_active_map
crash-arm64: invalid kernel virtual address: ffff80001196afe0 type:
"shadow_timekeeper xtime_sec"
crash-arm64: invalid kernel virtual address: ffff800011782b3c type:
"init_uts_ns"
WARNING: invalid linux_banner pointer: ffff800010c500e8
crash: vmlinux.1003 and vmcore.1003 do not match!
Have you noticed this issue?
Thanks,
-Takahiro Akashi
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