Date: Mon, 2 Jun 2025 17:42:24 -0600 From: Warner Losh <imp@bsdimp.com> To: Steve Kargl <sgk@troutmask.apl.washington.edu> Cc: David Wolfskill <david@catwhisker.org>, FreeBSD Current <freebsd-current@freebsd.org> Subject: Re: drm panic after new world Message-ID: <CANCZdfq%2Bp-hnvuBh8EU5HCtTSch7MWT8pHy-PMjVL88CDD6myw@mail.gmail.com> In-Reply-To: <aD4xG4OMBxBQqmBZ@troutmask.apl.washington.edu> References: <aDi-PhLtvicg9Bbz@troutmask.apl.washington.edu> <aDjThAnfAfJB4KE7@troutmask.apl.washington.edu> <aD4nRhiexw1m7iUS@troutmask.apl.washington.edu> <aD4pVUfbiaDDh9q5@albert.catwhisker.org> <aD4xG4OMBxBQqmBZ@troutmask.apl.washington.edu>
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[-- Attachment #1 --] On Mon, Jun 2, 2025, 5:18 PM Steve Kargl <sgk@troutmask.apl.washington.edu> wrote: > On Mon, Jun 02, 2025 at 03:44:37PM -0700, David Wolfskill wrote: > > On Mon, Jun 02, 2025 at 03:35:50PM -0700, Steve Kargl wrote: > > > ... > > > How does one use dates to checkout a particular head? > > > If I'm at the top of HEAD and need to got back to > > > mid-february, what's the easiest option for performing > > > a bisection by hand? > > > > > > > Maybe someone else will have a better idea, but you could: > > > > * Examine (say) > > > https://lists.freebsd.org/archives/dev-commits-src-main/2025-February/date.html > , > > filtering out the "replies" to find git commit hashes. > > > > Thanks for the suggestion. > > Unfortunately, this is what I feared. Suppose I find > commit hash abcdef for 20250215 and hash ghijkl for > 20250315, i.e, the 2 commits roughly a month apart. > I can do > > % git checkout abcdef > > Now, I do the usual buildworld/installworld including > the etcupdate steps. I need to rebuild drm-515-kmod > port. Test to see if drm works again, > > % git checkout main (to recover the main branch). > % git checkout ghijkl > > Repeat the world dance. > Yes. That will work. It will create a detached tree, but that's fine. You can also do git bisect too. Warner -- > Steve > > [-- Attachment #2 --] <div dir="auto"><div><br><br><div class="gmail_quote gmail_quote_container"><div dir="ltr" class="gmail_attr">On Mon, Jun 2, 2025, 5:18 PM Steve Kargl <<a href="mailto:sgk@troutmask.apl.washington.edu">sgk@troutmask.apl.washington.edu</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">On Mon, Jun 02, 2025 at 03:44:37PM -0700, David Wolfskill wrote:<br> > On Mon, Jun 02, 2025 at 03:35:50PM -0700, Steve Kargl wrote:<br> > > ...<br> > > How does one use dates to checkout a particular head?<br> > > If I'm at the top of HEAD and need to got back to<br> > > mid-february, what's the easiest option for performing<br> > > a bisection by hand?<br> > > <br> > <br> > Maybe someone else will have a better idea, but you could:<br> > <br> > * Examine (say)<br> > <a href="https://lists.freebsd.org/archives/dev-commits-src-main/2025-February/date.html" rel="noreferrer noreferrer" target="_blank">https://lists.freebsd.org/archives/dev-commits-src-main/2025-February/date.html</a>,<br>; > filtering out the "replies" to find git commit hashes.<br> > <br> <br> Thanks for the suggestion.<br> <br> Unfortunately, this is what I feared. Suppose I find <br> commit hash abcdef for 20250215 and hash ghijkl for<br> 20250315, i.e, the 2 commits roughly a month apart.<br> I can do<br> <br> % git checkout abcdef<br> <br> Now, I do the usual buildworld/installworld including <br> the etcupdate steps. I need to rebuild drm-515-kmod<br> port. Test to see if drm works again,<br> <br> % git checkout main (to recover the main branch).<br> % git checkout ghijkl <br> <br> Repeat the world dance.<br></blockquote></div></div><div dir="auto"><br></div><div dir="auto">Yes. That will work. It will create a detached tree, but that's fine. You can also do git bisect too.</div><div dir="auto"><br></div><div dir="auto">Warner</div><div dir="auto"><br></div><div dir="auto"><br></div><div dir="auto"><div class="gmail_quote gmail_quote_container"><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"> -- <br> Steve<br> <br> </blockquote></div></div></div>help
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