Date: Thu, 25 Oct 2018 09:14:39 +0000 From: Marcin Cieslak <saper@saper.info> To: John Baldwin <jhb@FreeBSD.org> Cc: FreeBSD Current <freebsd-current@freebsd.org> Subject: Re: savecore: BFD: BFD 2.17.50 [FreeBSD] 2007-07-03 assertion fail /usr/src/gnu/usr.bin/binutils/libbfd/../../../../contrib/binutils/bfd/elf64-x86-64.c:276 Message-ID: <nycvar.OFS.7.76.444.1810250907300.5494@z.fncre.vasb> In-Reply-To: <65f4cac9-99be-265f-e461-b166d52d226b@FreeBSD.org> References: <nycvar.OFS.7.76.444.1810231752110.5494@z.fncre.vasb> <65f4cac9-99be-265f-e461-b166d52d226b@FreeBSD.org>
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--1563967779-2031317455-1540458880=:5494 Content-Type: text/plain; charset=US-ASCII On Wed, 24 Oct 2018, John Baldwin wrote: > On 10/23/18 10:58 AM, Marcin Cieslak wrote: > > This GDB was configured as "amd64-marcel-freebsd"...BFD: /boot/kernel/kernel: invalid relocation type 37 > > BFD: BFD 2.17.50 [FreeBSD] 2007-07-03 assertion fail /usr/src/gnu/usr.bin/binutils/libbfd/../../../../contrib/binutils/bfd/elf64-x86-64.c:276 > > > > The kernel has been built on 11.1 with LD=/usr/bin/ld.lld > > > > Is this something that matters at all? > > It is not something that is likely to be fixed. If you pkg install gdb from > ports, is the kgdb it includes able to examine the crash dump? Not really (using 8.2 from ports): # /usr/local/bin/kgdb82 -n 5 /usr/obj/usr/src/sys/GENERIC/kernel.debug GNU gdb (GDB) 8.2 [GDB v8.2 for FreeBSD] Copyright (C) 2018 Free Software Foundation, Inc. License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>; This is free software: you are free to change and redistribute it. There is NO WARRANTY, to the extent permitted by law. Type "show copying" and "show warranty" for details. This GDB was configured as "x86_64-portbld-freebsd11.1". Type "show configuration" for configuration details. For bug reporting instructions, please see: <http://www.gnu.org/software/gdb/bugs/>. Find the GDB manual and other documentation resources online at: <http://www.gnu.org/software/gdb/documentation/>. For help, type "help". Type "apropos word" to search for commands related to "word"... Reading symbols from /usr/obj/usr/src/sys/GENERIC/kernel.debug...done. thread.c:93: internal-error: struct thread_info *inferior_thread(): Assertion `tp' failed. A problem internal to GDB has been detected, further debugging may prove unreliable. Quit this debugging session? (y or n) With regular base kgdb I can open it but I can't get any backtrace or anything: Cannot access memory at address 0x0 (kgdb) info reg rax 0x0 0 rbx 0x0 0 rcx 0x0 0 rdx 0x0 0 rsi 0x0 0 rdi 0x0 0 rbp 0x0 0x0 rsp 0x0 0x0 r8 0x0 0 r9 0x0 0 r10 0x0 0 r11 0x0 0 r12 0x0 0 r13 0x0 0 r14 0x0 0 r15 0x0 0 rip 0x0 0 eflags 0x0 0 cs 0x0 0 ss 0x0 0 ds 0x0 0 es 0x0 0 fs 0x0 0 gs 0x0 0 What should I try next? at what stage is bfd involved in the savecore process? 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