[Bug 284073] bnxt: kernel panic on 14.2-RELEASE

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=284073

Zhenlei Huang <zlei@FreeBSD.org> changed:

           What    |Removed                     |Added
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                 CC|                            |zlei@FreeBSD.org

--- Comment #2 from Zhenlei Huang <zlei@FreeBSD.org> ---
addr2line shows that the line of source code is
https://cgit.freebsd.org/src/tree/sys/dev/bnxt/bnxt_en/bnxt_sysctl.c?h=releng/14.2#n1959
, but no clue how that line can panic.

Maybe the kernel actually panic within `sysctl_handle_string()` ?

Hi Daniel, Can you please build the kernel with INVARIANTS enabled, or directly
with the kernel conf `GENERIC-DEBUG` and test with the new kernel / driver ?


```
% readelf -s if_bnxt.ko.debug | grep bnxt_dcb_list_app
   163: 000000000001a5c0   368 FUNC    LOCAL  DEFAULT    1 bnxt_dcb_list_app
% echo "obase=16; ibase=16; 1A5C0 + 144" | bc
1A704
% addr2line -fip -e if_bnxt.ko.debug -j .text 0x1A704
bnxt_dcb_list_app at /usr/src/sys/dev/bnxt/bnxt_en/bnxt_sysctl.c:1959
```

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