Date: Tue, 5 Mar 2019 09:28:17 -0700 From: Alan Somers <asomers@freebsd.org> To: Matthew Macy <mmacy@freebsd.org> Cc: src-committers <src-committers@freebsd.org>, svn-src-all <svn-src-all@freebsd.org>, svn-src-head <svn-src-head@freebsd.org> Subject: Re: svn commit: r344487 - in head/sys: conf gnu/gcov Message-ID: <CAOtMX2h3mrOUNh_UotnVzzmwiWcLi2Sp9utcxzXnf9-25KCy4Q@mail.gmail.com> In-Reply-To: <CAPrugNrKBQr27dmPR5RgOH-9azKiO2tSEymSCrmU3J2yABL3wQ@mail.gmail.com> References: <201902232114.x1NLE0cH085345@repo.freebsd.org> <CAOtMX2hD=o%2BF1z1sErDuBxaL8qm%2BS-BDAwvLr=1z0MhmAJ8ang@mail.gmail.com> <CAPrugNrnKeDkqsqDtPyTCsPBK6rUsAThog1KO1u3FPCGihD3sw@mail.gmail.com> <CAOtMX2j5tFdapsHr3WwVAG3PjUNBuuvoZSiy9L=_7c925M=zRQ@mail.gmail.com> <CAPrugNrKBQr27dmPR5RgOH-9azKiO2tSEymSCrmU3J2yABL3wQ@mail.gmail.com>
next in thread | previous in thread | raw e-mail | index | archive | help
It's not a problem with the version; they're built from the same source. But is there a problem with the compiler? Can a GCC-built kernel work with Clang-built world? On Tue, Mar 5, 2019 at 12:54 AM Matthew Macy <mmacy@freebsd.org> wrote: > > World? It looks like there's a version mismatch between the kernel and modules. > > -M > > On Thu, Feb 28, 2019 at 7:11 PM Alan Somers <asomers@freebsd.org> wrote: > > > > On Thu, Feb 28, 2019 at 6:40 PM Matthew Macy <mmacy@freebsd.org> wrote: > > > > > > to config add: > > > options LINDEBUGFS > > > options GCOV > > > > > > compile kernel with gcc (otherwise it will be a no-op) > > > > > > sysctl debug.gcov.enable=1 > > > > > > mount -t debugfs debugfs /sys/kernel/debug > > > > > > (or wherever) and the output artifacts will appear under gcov/<kernel > > > build path> - you need to be root to see the artifacts > > > > > > gcov can then generate the results as it would normally from the > > > profiling and the build time artifacts > > > > > > bug reports welcome > > > > > > > > > -M > > > > Here's a bug report: I rebuilt the kernel but boot fails with this > > error. Do I need to rebuild world too? > > > > Mounting local filesystems:kldload: fdescfs.ko: lost base for reltab > > linker_load_file: /boot/kernel/fdescfs.ko - unsupported file type > > mount: fdescfs: Operation not supported by device > > Mounting /etc/fstab filesystems failed, will retry after root mount hold release > > kldload: fdescfs.ko: lost base for reltab > > linker_load_file: /boot/kernel/fdescfs.ko - unsupported file type > > mount: fdescfs: Operation not supported by device > > . > > Mounting /etc/fstab filesystems failed, startup aborted
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?CAOtMX2h3mrOUNh_UotnVzzmwiWcLi2Sp9utcxzXnf9-25KCy4Q>