Date: Wed, 8 May 2019 18:55:53 -0400 From: Mark Johnston <markj@freebsd.org> To: Larry Rosenman <ler@freebsd.org> Cc: freebsd-current@freebsd.org Subject: Re: Crash loading dtraceall Message-ID: <20190508225553.GC11774@raichu> In-Reply-To: <845dd186ef038d98c1a95a7454e432d2@FreeBSD.org> References: <20190508205245.ulbo6fusk3b4py7t@ler-imac.local> <20190508222932.GB11774@raichu> <845dd186ef038d98c1a95a7454e432d2@FreeBSD.org>
next in thread | previous in thread | raw e-mail | index | archive | help
On Wed, May 08, 2019 at 05:47:08PM -0500, Larry Rosenman wrote:
> On 05/08/2019 5:29 pm, Mark Johnston wrote:
> > On Wed, May 08, 2019 at 03:52:45PM -0500, Larry Rosenman wrote:
> >> Greetings,
> >>
> >> Somewhere between r346483 and r347241 loading dtraceall causes a
> >> crash. I have the cores and kernels.
> >>
> >> It's hard for me to bisect more than this, as the box is remote.
> >>
> >> What more do you need? (this dump is fropm r347355).
> >
> > Please visit frame 8 and print *lf.
> >
> #9 fbt_provide_module_function (lf=0xfffff800020ff000, symindx=30763,
> symval=0xfffffe00d74d7e00, opaque=0xfffffe00d74d7e50) at
> /usr/src/sys/cddl/dev/fbt/x86/fbt_isa.c:191
> 191 if (*instr == FBT_PUSHL_EBP)
> (kgdb) print *lf
> $1 = {ops = 0xfffff800020f6000, refs = 202, userrefs = 1, flags = 1,
> link = {tqe_next = 0xfffff800020fec00, tqe_prev = 0xffffffff80c767d0
> <linker_files>}, filename = 0xfffff80002101030 "kernel",
> pathname = 0xfffff80002104080 "/boot/kernel/kernel", id = 1, address =
> 0xffffffff80200000 "\177ELF\002\001\001\t", size = 17612816, ctors_addr
> = 0x0, ctors_size = 0, ndeps = 0, deps = 0x0, common = {stqh_first =
> 0x0,
> stqh_last = 0xfffff800020ff070}, modules = {tqh_first =
> 0xfffff800020e5800, tqh_last = 0xfffff80002116790}, loaded = {tqe_next =
> 0x0, tqe_prev = 0x0}, loadcnt = 1, nenabled = 0, fbt_nentries = 25062}
> (kgdb)
And could you show the output of:
$ readelf -s /boot/kernel/kernel | grep "30763:"
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?20190508225553.GC11774>