Re: GENERIC_KASLR panic

[Chavdar Ivanov <ci4ic4%gmail.com@localhost>]

Hi,
http://gnats.netbsd.org/cgi-bin/query-pr-single.pl?number=56722 was
filed, to respond to myself.

On Thu, 17 Feb 2022 at 22:34, Chavdar Ivanov <ci4ic4%gmail.com@localhost> wrote:
>
> Hi,
>
> A few hours old update; GENERIC boots ok on a -current amd64
> VirtualBox guest vm. This machine usually runs GENERIC_KASLR (I just
> wanted to have a box running this one for comparison). GENERIC_KASLR
> panics reliably as follows:
> ....
>
> r11   ffffffff8e3d8964
> r12   ffffffff8e3d8a18
> r13   260
> r14   0
> r15   fff2562260 nonce.3
> rip   ffffffff9b168705   chacha_stream_sse2+0x1ee
> cs    8
> rflags 10286
> rsp   ffffffff8e3d8610
> ss 10
> netbsd:chacha_stream_sse2+0x1ee:   ???
> db(3)> bt
> chacha_stream_sse2() at netbsd:chacha_stream_sse2+0x1ee
> xchacha_ stream_sse2() at netbsd:xchacha_stream_sse2+0x15d
> xchacha_stream_sse2_impl() at netbsd:xchacha_stream_sse2_impl.0x41
> xchacha_stream_selftest() at netbsd:xchacha_stream_selftest+0x4e
> chacha_selftest() at netbsd:chacha_self test+0x107
> chacha_modcmd() at netbsd:chacha_modcmd+ 0x2a
> module_do_builtin() at netbsd:module_do_builtin+0x1?d
> module_do_builtin() at netbsd: module_do_builtin+0x132
> module_init_class() at netbsd:module_init_class+0x1cf
> main() at netbsd main+0x507
> start_prekern() at netbsd:start_prekern+Oxf5
> ?() at 100641
>
> The previous working GENERIC_KASLR kernel on this machine is from the
> 26th of January; it works OK (with today's userland). I also replaced
> /usr/mdec/prekern, but it hasn't changed since quite a few months.
>
> Chavdar
>
> --
> ----



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