on 29/01/2010 15:40 Jeremy Chadwick said the following: > On Fri, Jan 29, 2010 at 10:29:51PM +1030, Daniel O'Connor wrote: >> On Fri, 29 Jan 2010, Ruben de Groot wrote: >>>> I don't think you need them unless remote debugging and in that >>>> case you are multiuser (I would have thought anyway). >>>> >>>> If they went into /usr then /boot could remain slim. >>> But what if you have /usr on a gmirror, glabel, zfs filesystem or any >>> other device that is not compiled in your kernel? Sure you can build >>> a custom kernel, but I would expect a lot of questions, frustrations >>> and footshooting from such a change. >>> >>> I think increasing / (again) would be the least painfull. >> You don't need debug symbols to boot a kernel, you only need them when >> debugging. > > Somewhat related: can someone explain why debugging a crash dump of a > kernel which contains "makeoptions DEBUG=-g" requires and relies on > stuff in /usr/obj?
So do remove or not install *.symbols files? That would explain it. I keep those files and my debugging doesn't depend on /usr/obj. > Meaning: if I build kernel/world, install kernel/world, and then rm -fr > /usr/obj/*, I won't be able to reliably debug a crash dump after the > system restarts. I believe I can get a stack trace, but there's nothing > else that can be ascertained (bt full is basically worthless). > > I've seen kernel crash dumps from people here on the list[1] which > contain way more detail than any of mine do[2]. > > Off-topic: I've noticed that /usr/obj is created as part of the OS > installation with perms 0755. I've always thought there might be > security implications by that, so usually end up setting it to 0700 or > possibly 0750 (still root:wheel). > > [1]: > http://lists.freebsd.org/pipermail/freebsd-stable/2010-January/054269.html > [2]: > http://lists.freebsd.org/pipermail/freebsd-stable/2009-October/052256.html > -- Andriy Gapon _______________________________________________ freebsd-stable@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-stable To unsubscribe, send any mail to "freebsd-stable-unsubscr...@freebsd.org"
