Date: Tue, 14 Dec 2021 08:36:12 +0300 From: Mehmet Erol Sanliturk <m.e.sanliturk@gmail.com> To: "Julian H. Stacey" <jhs@berklix.com> Cc: hackers@freebsd.org Subject: Re: /boot/loader.conf debuging traces come out jumbled Message-ID: <CAOgwaMuGCYU1FeYwB2h2xkTah1SpdZ3MRT%2BW5TnCpMmKMWDrWA@mail.gmail.com> In-Reply-To: <202112140007.1BE079G8030464@fire.js.berklix.net> References: <202112140007.1BE079G8030464@fire.js.berklix.net>
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--000000000000551d2005d3149341 Content-Type: text/plain; charset="UTF-8" On Tue, Dec 14, 2021 at 3:08 AM Julian H. Stacey <jhs@berklix.com> wrote: > Debugging my /boot/loader.conf on 12.2-STABLE (with a 12.2-RELEASE kernel, > > (as 12.2-STABLE & 12.3-RELEASE & 13.0-RELEASE GENERIC kernels crash > during > boot on one machine here (To be subject of later analysis & > posting)... I got distracted onto debugging boot options, after > output from booting screen rolled off the top), So I concentrated > first on identifying & hashing out noisey boot options , before > next searching how to capture boot text (maybe to a serial port ?) ) > > I tried adding markers to loader.conf create deliberate visible error > texts to > mark around lines I wanted to study the effect of, eg > fuse_load="YES" etc ... > > I added this in the middle of /boot/loader.conf : > ZZZZZZZZZ00000000_load="YES" > ZZZZZZZZZ00001111_load="YES" > ZZZZZZZZZ00002222_load="YES" > ZZZZZZZZZ44440000_load="YES" > ZZZZZZZZZ44441111_load="YES" > ZZZZZZZZZ44442222_load="YES" > > & next boot showed a weirdly disordered: > > Loading configured modules... > can't find 'ZZZZZZZZZ00000000_load' > can't find 'ZZZZZZZZZ00002222_load' > can't find 'ZZZZZZZZZ44442222_load' > can't find 'ZZZZZZZZZ44440000_load' > can't find 'ZZZZZZZZZ44441111_load' > can't find 'ZZZZZZZZZ00001111_load' > /etc/hostid size=0x25 > > its not even just a reverse order that one might have expected from > a forth unstacker or some such. Makes it harder to trace what output > lines come from which loader.conf lines. > > -- > Julian Stacey http://berklix.com/jhs/ http://stolenvotes.uk > Minimise contact, vax insufficient. Prime liar a liability to cons & > UK. > The above message has triggered remembering one of experiences with FreeBSD before 9.2(?) : I am testing a C program with "clang" : print ( ... 'A : ' ... ) a ; print ( ... 'B : ' ... ) b ; print ( ... 'C : ' ... ) c ; Output ( like similar to the following but disordered with respect to its liking ) : B : ... A : ... C : ... means "Unbelievable" ... Mehmet Erol Sanliturk --000000000000551d2005d3149341--
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