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[ARM64,ubuntu] /usr/lib/debug/boot/vmlinux-4.15.0-45-generic and /var/crash/vmcore.202412240137 do not match! #197

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yangni2017 opened this issue Dec 27, 2024 · 0 comments

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@yangni2017
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yangni2017 commented Dec 27, 2024

info:
kernel: Linux cvm-76 4.15.0-45-generic #48~16.04.1-Ubuntu SMP Tue Jan 29 18:10:13 UTC 2019 aarch64 aarch64 aarch64 GNU/Linux
crash: crash 7.3.2

In my ubuntu system, i use "echo c > /proc/sysrq-trigger" get the /var/crash/vmcore.202412240137. And download the ubuntu debug ddep file from here.
But, when i use crash to debug, it tell me not match.

when i debug the code of crash, the function of "verify_version" get the empty buf form linux_banner.

if (!read_string(linux_banner, buf, BUFSIZE-1))
		error(WARNING, "cannot read linux_banner string\n");

other info:

# cat /boot/System.map-4.15.0-45-generic | grep linux_banner
ffff000008b100c0 R linux_banner
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