Date: Sat, 5 May 2012 20:26:17 -0400 From: Outback Dingo <outbackdingo@gmail.com> To: davidxu@freebsd.org Cc: bf1783@gmail.com, Steve Wills <swills@freebsd.org>, freebsd-current@freebsd.org, "b. f." <bf1783@googlemail.com> Subject: Re: ctfmerge core dump Message-ID: <CAKYr3zwa%2BSgT6o1wYihJeGCfbwqqXhkK3DLLBZixJWa4nEerzg@mail.gmail.com> In-Reply-To: <4FA5BDAD.5090809@gmail.com> References: <CAGFTUwOX1bM1i1a6e1c3AgpV0KCfbc7gbvkdRLq4MwdZ6QnY9A@mail.gmail.com> <4FA58672.1040201@FreeBSD.org> <CAGFTUwOCGURAHUwa=xYAMj6Yf=MkQ=7cG=gGOJ0tYLqEZMkk3A@mail.gmail.com> <4FA5BDAD.5090809@gmail.com>
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On Sat, May 5, 2012 at 7:54 PM, David Xu <listlog2011@gmail.com> wrote: > On 2012/5/6 5:08, b. f. wrote: >> >> On 5/5/12, Steve Wills<swills@freebsd.org> =A0wrote: >>> >>> On 05/05/12 15:43, b. f. wrote: >>>> >>>> Steve Wills wrote: >>>>> >>>>> After updating from -CURRENT as of April 5 to one built today, I now >>>>> get >>>>> a core dump running ctfmerge on libc: >>>>> >>>>> ctfmerge -L VERSION -g -o libc.so.7 syscall.So fork.So...... >>>>> Bus error (core dumped) >>>>> *** [libc.so.7] Error code 138 >>>>> >>>>> Anyone else seeing this or have any idea how to avoid it? >>>> >>>> Yes, I'm also seeing such problems when attempting to build a r235052 >>>> amd64 kernel on r235035 amd64. (This problem did not occur when >>>> building a r235035 amd64 world and kernel on r234854 amd64.) =A0ctfmer= ge >>>> succeeds for several kernel modules but fails with kgssapi.ko.debug, >>>> linux.ko.debug, or kernel.debug. I'm not yet sure which change has >>>> caused this, or how to avoid it. >>>> >>> Thanks for the info. I took a look at the dump and see this: >>> >>> % sudo gdb /usr/bin/ctfmerge ctfmerge.core >>> [GDB will not be able to debug user-mode threads: Undefined symbol >>> "td_thr_getxmmregs"] >>> GNU gdb 6.1.1 [FreeBSD] >>> Copyright 2004 Free Software Foundation, Inc. >>> GDB is free software, covered by the GNU General Public License, and yo= u >>> are >>> welcome to change it and/or distribute copies of it under certain >>> conditions. >>> Type "show copying" to see the conditions. >>> There is absolutely no warranty for GDB. =A0Type "show warranty" for >>> details. >>> This GDB was configured as "amd64-marcel-freebsd"... >>> Core was generated by `ctfmerge'. >>> Program terminated with signal 10, Bus error. >>> Reading symbols from /lib/libctf.so.2...done. >>> Loaded symbols for /lib/libctf.so.2 >>> Reading symbols from /usr/lib/libdwarf.so.3...done. >>> Loaded symbols for /usr/lib/libdwarf.so.3 >>> Reading symbols from /usr/lib/libelf.so.1...done. >>> Loaded symbols for /usr/lib/libelf.so.1 >>> Reading symbols from /lib/libz.so.6...done. >>> Loaded symbols for /lib/libz.so.6 >>> Reading symbols from /lib/libthr.so.3...done. >>> Loaded symbols for /lib/libthr.so.3 >>> Reading symbols from /lib/libc.so.7...done. >>> Loaded symbols for /lib/libc.so.7 >>> Reading symbols from /libexec/ld-elf.so.1...done. >>> Loaded symbols for /libexec/ld-elf.so.1 >>> #0 =A00x00000000004064b0 in fifo_len (f=3D0x801c29070) at >>> >>> /usr/src/cddl/usr.bin/ctfmerge/../../../cddl/contrib/opensolaris/tools/= ctf/cvt/fifo.c:128 >>> 128 =A0 =A0 =A0 =A0 =A0 =A0 for (i =3D 0, fn =3D f->f_head; fn; fn =3D = fn->fn_next, i++); >>> (gdb) bt >>> #0 =A00x00000000004064b0 in fifo_len (f=3D0x801c29070) at >>> >>> /usr/src/cddl/usr.bin/ctfmerge/../../../cddl/contrib/opensolaris/tools/= ctf/cvt/fifo.c:128 >>> #1 =A00x000000000040622c in worker_thread (wq=3D0x610ee0) at >>> >>> /usr/src/cddl/usr.bin/ctfmerge/../../../cddl/contrib/opensolaris/tools/= ctf/cvt/ctfmerge.c:329 >>> #2 =A00x0000000801078da9 in thread_start (curthread=3D0x801c0f800) at >>> /usr/src/lib/libthr/thread/thr_create.c:284 >>> #3 =A00x0000000000000000 in ?? () >>> Cannot access memory at address 0x7fffff5fb000 >>> (gdb) >>> >> After reverting the recent libthr changes in r234947, I am no longer >> encountering this problem. >> >> b. >> > I have fixed it in r235068. hopefully itll fix kernel compilations also halting with signal 10 > > > > _______________________________________________ > freebsd-current@freebsd.org mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-current > To unsubscribe, send any mail to "freebsd-current-unsubscribe@freebsd.org= "
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