Package: emacs;
Reported by: Petr Hracek <phracek <at> redhat.com>
Date: Wed, 20 May 2015 07:59:01 UTC
Severity: important
Tags: patch
Done: Lars Ingebrigtsen <larsi <at> gnus.org>
Bug is archived. No further changes may be made.
Message #114 received at 20614 <at> debbugs.gnu.org (full text, mbox):
From: Petr Hracek <phracek <at> redhat.com> To: Eli Zaretskii <eliz <at> gnu.org> Cc: 20614 <at> debbugs.gnu.org Subject: Re: bug#20614: Segmentation fault when building on Power8 Little Endian Date: Thu, 1 Oct 2015 16:05:57 +0200
On 10/01/2015 02:22 PM, Eli Zaretskii wrote:
>> From: Petr Hracek <phracek <at> redhat.com>
>> Date: Thu, 1 Oct 2015 13:53:14 +0200
>>
>> Some update regarding this bug.
>> I have add some defines like:
>> $ cat emacs-segment-bss.patch
>> diff --git a/src/unexelf.c b/src/unexelf.c
>> index d365940..55d7ba6 100644
>> --- a/src/unexelf.c
>> +++ b/src/unexelf.c
>> @@ -846,7 +846,7 @@ unexec (const char *new_name, const char *old_name)
>> if ((OLD_SECTION_H (old_bss_index)).sh_addralign > alignment)
>> alignment = OLD_SECTION_H (old_bss_index).sh_addralign;
>>
>> -#ifdef __sgi
>> +#if defined __sgi || defined __ppc64le__ || defined __ppc64__
>> /* According to r02kar <at> x4u2.desy.de (Karsten Kuenne)
>> and oliva <at> gnu.org (Alexandre Oliva), on IRIX 5.2, we
>> always get "Program segment above .bss" when dumping
>> $
>>
>> Here is a full backtrace executed on PPC64LE
> Thanks. Can you repeat this in an unoptimized build? Otherwise the
> backtrace cannot be trusted (and makes little sense).
Hi Eli,
Here is full backtrace:
Program received signal SIGSEGV, Segmentation fault.
0x00003fffb5a9a870 in strcmp () from /lib64/power8/libc.so.6
Missing separate debuginfos, use: debuginfo-install
GConf2-3.2.6-8.el7.ppc64le ImageMagick-6.7.8.9-10.el7.ppc64le
OpenEXR-libs-1.7.1-7.el7.ppc64le alsa-lib-1.0.28-2.el7.ppc64le
at-spi2-atk-2.8.1-4.el7.ppc64le at-spi2-core-2.8.0-6.el7.ppc64le
atk-2.14.0-1.el7.ppc64le avahi-libs-0.6.31-15.el7.ppc64le
bzip2-libs-1.0.6-13.el7.ppc64le cairo-1.14.2-1.el7.ppc64le
cairo-gobject-1.14.2-1.el7.ppc64le cups-libs-1.6.3-22.el7.ppc64le
dbus-glib-0.100-7.el7.ppc64le dbus-libs-1.6.12-13.el7.ppc64le
expat-2.1.0-8.el7.ppc64le fontconfig-2.10.95-7.el7.ppc64le
freetype-2.4.11-11.el7.ppc64le gdk-pixbuf2-2.31.1-1.el7.ppc64le
ghostscript-9.07-18.el7.ppc64le giflib-4.1.6-9.el7.ppc64le
glib2-2.42.2-3.el7.ppc64le glibc-2.17-103.el7.ppc64le
gmp-6.0.0-11.el7.ppc64le gnutls-3.3.8-13.el7.ppc64le
gtk3-3.14.13-13.el7.ppc64le harfbuzz-0.9.36-1.el7.ppc64le
ilmbase-1.0.3-7.el7.ppc64le jasper-libs-1.900.1-29.el7.ppc64le
jbigkit-libs-2.0-11.el7.ppc64le keyutils-libs-1.5.8-3.el7.ppc64le
krb5-libs-1.13.2-3.el7.ppc64le lcms2-2.6-2.el7.ppc64le
libICE-1.0.9-2.el7.ppc64le libSM-1.2.2-2.el7.ppc64le
libX11-1.6.3-2.el7.ppc64le libXau-1.0.8-2.1.el7.ppc64le
libXcomposite-0.4.4-4.1.el7.ppc64le libXcursor-1.1.14-2.1.el7.ppc64le
libXdamage-1.1.4-4.1.el7.ppc64le libXext-1.3.3-3.el7.ppc64le
libXfixes-5.0.1-2.1.el7.ppc64le libXft-2.3.2-2.el7.ppc64le
libXi-1.7.4-2.el7.ppc64le libXinerama-1.1.3-2.1.el7.ppc64le
libXpm-3.5.11-3.el7.ppc64le libXrandr-1.4.2-2.el7.ppc64le
libXrender-0.9.8-2.1.el7.ppc64le libXt-1.1.4-6.1.el7.ppc64le
libXxf86vm-1.1.3-2.1.el7.ppc64le libcom_err-1.42.9-7.el7.ppc64le
libcroco-0.6.8-5.el7.ppc64le libdrm-2.4.60-3.el7.ppc64le
libffi-3.0.13-16.el7.ppc64le libgcc-4.8.5-4.el7.ppc64le
libgomp-4.8.5-4.el7.ppc64le libjpeg-turbo-1.2.90-5.el7.ppc64le
libotf-0.9.13-4.el7.ppc64le libpng-1.5.13-5.el7.ppc64le
librsvg2-2.39.0-1.el7.ppc64le libselinux-2.2.2-6.el7.ppc64le
libstdc++-4.8.5-4.el7.ppc64le libtasn1-3.8-2.el7.ppc64le
libthai-0.1.14-9.el7.ppc64le libtiff-4.0.3-14.el7.ppc64le
libtool-ltdl-2.4.2-20.el7.ppc64le libuuid-2.23.2-24.el7.ppc64le
libwmf-lite-0.2.8.4-41.el7.ppc64le libxcb-1.11-4.el7.ppc64le
libxml2-2.9.1-5.el7_1.2.ppc64le libxshmfence-1.2-1.el7.ppc64le
m17n-lib-1.6.4-14.el7.ppc64le mesa-libEGL-10.6.0-1.20150616.el7.ppc64le
mesa-libGL-10.6.0-1.20150616.el7.ppc64le
mesa-libgbm-10.6.0-1.20150616.el7.ppc64le
mesa-libglapi-10.6.0-1.20150616.el7.ppc64le
ncurses-libs-5.9-13.20130511.el7.ppc64le nettle-2.7.1-4.el7.ppc64le
nss-softokn-freebl-3.16.2.3-13.el7.ppc64le
openssl-libs-1.0.1e-42.el7_1.9.ppc64le p11-kit-0.20.7-3.el7.ppc64le
pango-1.36.8-2.el7.ppc64le pcre-8.32-15.el7.ppc64le
pixman-0.32.6-3.el7.ppc64le trousers-0.3.13-1.el7.ppc64le
xz-libs-5.1.2-10alpha.el7.ppc64le zlib-1.2.7-15.el7.ppc64le
(gdb) bt full
#0 0x00003fffb5a9a870 in strcmp () at /lib64/power8/libc.so.6
#1 0x00000000102e3724 in unexec (new_name=0x116387e8
"/home/phracek/rpmbuild/BUILD/emacs-24.3/src/emacs", old_name=0x11638838
"/home/phracek/rpmbuild/BUILD/emacs-24.3/src/temacs") at unexelf.c:1258
section =
{sh_name = 122, sh_type = 4, sh_flags = 2, sh_addr =
268483528, sh_offset = 48072, sh_size = 768, sh_link = 5, sh_info = 0,
sh_addralign = 8, sh_entsize = 24}
new_file = 10
old_file = 9
new_file_size = 30790315
new_break = 0x116f0000
old_base = 0x3fffaa800000 "\177ELF\002\001\001"
new_base = 0x3fffa8aa0000 "\177ELF\002\001\001"
old_file_h = 0x3fffaa800000
new_file_h = 0x3fffa8aa0000
old_program_h = 0x3fffaa800040
new_program_h = 0x3fffa8aa0040
old_section_h = 0x3fffab1dc110
new_section_h = 0x3fffaa78c110
old_section_names = 0x3fffab1dbfcc ""
old_bss_addr = 272498688
new_bss_addr = 292487168
old_bss_size = 563072
new_data2_size = 19988480
new_data2_offset = 4063232
new_data2_addr = 272498688
old_bss_offset = 4063232
new_data2_incr = 19988480
n = 9
nn = 0
old_bss_index = 22
old_sbss_index = -1
old_plt_index = 20
old_data_index = 21
new_data2_index = 20
stat_buf =
{st_dev = 2050, st_ino = 5119871, st_nlink = 1, st_mode =
33261, st_uid = 20582, st_gid = 20582, __pad2 = 0, st_rdev = 0, st_size
= 10801771, st_blksize = 4096, st_blocks = 20984, st_atim = {tv_sec =
1443707449, tv_nsec = 95539783}, st_mtim = {tv_sec = 1443707448, tv_nsec
= 975539771}, st_ctim = {tv_sec = 1443707448, tv_nsec = 975539771},
__unused4 = 0, __unused5 = 0, __unused6 = 0}
old_file_size = 10801771
---Type <return> to continue, or q <return> to quit---
#2 0x00000000101a1170 in Fdump_emacs (filename=291602193,
symfile=291602097) at emacs.c:2030
tem = 276285906
symbol = 279411634
count = 16
#3 0x000000001027f368 in eval_sub (form=280596326) at eval.c:2146
numargs = 8
args_left = 276285906
i = 2
maxargs = 2
argvals = {291604241, 291604209, 70368744168448,
70368744168656, 277773798, 271328908, 0, 276398802}
fun = 272527693
val = 276285906
original_fun = 276445394
original_args = 280253382
funcar = 277773862
backtrace = {next = 0x3fffffffddb0, function = 276445394, args
= 0x3fffffffdbe8, nargs = 2, debug_on_exit = 0}
gcpro1 = {next = 0x3fffffffddb0, var = 0x107a38d2, nvars =
70368744168424}
gcpro2 = {next = 0x3fffffffddb0, var = 0x107a38d2, nvars =
70368744168424}
gcpro3 = {next = 0x10776596, var = 0x3fffffffdbe8, nvars = 2}
#4 0x000000001027a010 in Fprogn (args=280793446) at eval.c:360
val = 276285906
gcpro1 = {next = 0x3ec63d1348a97a00, var = 0x3fffffffde20,
nvars = 6}
#5 0x000000001027ef94 in eval_sub (form=280194102) at eval.c:2091
numargs = 24
args_left = 280625926
i = 278384886
maxargs = 276605808
argvals = {276260246, 70368744169024, 277773894,
70368744168992, 4523370028772981248, 276234832, 276285906, 70368744169024}
fun = 275399253
val = 278384886
original_fun = 276403954
original_args = 280625926
funcar = 276285906
backtrace = {next = 0x3fffffffdfa0, function = 276403954, args
= 0x3fffffffdd28, nargs = -1, debug_on_exit = 0}
gcpro1 = {next = 0x3fffffffdfa0, var = 0x107996f2, nvars =
70368744168744}
gcpro2 = {next = 0x3fffffffdfa0, var = 0x107996f2, nvars =
70368744168744}
gcpro3 = {next = 0x1077c9d2, var = 0x3fffffffddd8, nvars = 1}
#6 0x0000000010279e58 in Fif (args=280088390) at eval.c:310
cond = 278384886
---Type <return> to continue, or q <return> to quit---
gcpro1 = {next = 0x3fffb7fefc80 <_dl_argv_internal>, var =
0x3fffb7ff0000 <_rtld_local>, nvars = 2}
#7 0x000000001027ef94 in eval_sub (form=276260150) at eval.c:2091
numargs = 8
args_left = 280088390
i = 276260150
maxargs = 276605808
argvals = {291932193, 276285906, 16, 276285906, 276285906,
276285906, 276398802, 276285906}
fun = 275399157
val = 70368744169264
original_fun = 276403858
original_args = 280088390
funcar = 70368744169408
backtrace = {next = 0x3fffffffe490, function = 276403858, args
= 0x3fffffffdf18, nargs = -1, debug_on_exit = 0}
gcpro1 = {next = 0x3fffffffe490, var = 0x10799692, nvars =
70368744169240}
gcpro2 = {next = 0x3fffffffe490, var = 0x10799692, nvars =
70368744169240}
gcpro3 = {next = 0x103e7968 <Smake_keymap+40>, var = 0x0, nvars
= 276398802}
#8 0x00000000102bd1a4 in readevalloop (readcharfun=276398802,
stream=0x107cab70, sourcename=276604337, printflag=false,
unibyte=276285906, readfun=276285906, start=276285906, end=276285906) at
lread.c:1843
count1 = 16
c = 276260150
val = 276260150
count = 12
gcpro1 = {next = 0x10798562, var = 0x10798560, nvars = 32}
gcpro2 = {next = 0x10798562, var = 0x10798560, nvars = 32}
gcpro3 = {next = 0x10798562, var = 0x10798560, nvars = 32}
gcpro4 = {next = 0x10798562, var = 0x10798560, nvars = 32}
b = 0x0
continue_reading_p = true
lex_bound = 276285906
whole_buffer = false
first_sexp = false
macroexpand = 276285906
#9 0x00000000102bb560 in Fload (file=276604081, noerror=276285906,
nomessage=276285906, nosuffix=276285906, must_suffix=276285906) at
lread.c:1316
stream = 0x107cab70
fd = 8
count = 3
gcpro1 = {next = 0x1f, var = 0x1f, nvars = 31}
gcpro2 = {next = 0x1f, var = 0x1f, nvars = 31}
gcpro3 = {next = 0x1f, var = 0x1f, nvars = 31}
---Type <return> to continue, or q <return> to quit---
found = 276604273
efound = 70367536151680
hist_file_name = 276604337
newer = false
compiled = false
handler = 24
safe_p = true
fmode = 0x10398788 "r"
tmp = {276285906, 276604305}
version = 0
#10 0x000000001027f44c in eval_sub (form=276523222) at eval.c:2157
numargs = 4
args_left = 276285906
i = 5
maxargs = 5
argvals = {276604081, 276285906, 276285906, 276285906,
276285906, 276285906, 276403666, 276403664}
fun = 275407901
val = 276285906
original_fun = 276398514
original_args = 276523206
funcar = 276312672
backtrace = {next = 0x0, function = 276398514, args =
0x3fffffffe4b8, nargs = 1, debug_on_exit = 0}
gcpro1 = {next = 0x0, var = 0x107981b2, nvars = 70368744170680}
gcpro2 = {next = 0x0, var = 0x107981b2, nvars = 70368744170680}
gcpro3 = {next = 0x3fffffffe480, var = 0x3fffffffe4b8, nvars = 5}
#11 0x000000001027eb44 in Feval (form=276523222, lexical=276285906) at
eval.c:2005
count = 2
#12 0x00000000101a4284 in top_level_2 () at keyboard.c:1177
#13 0x000000001027c86c in internal_condition_case (bfun=0x101a4244
<top_level_2>, handlers=276337522, hfun=0x101a3adc <cmd_error>) at
eval.c:1289
val = 70368744171024
c =
{tag = 276285906, val = 276285906, next = 0x3fffffffe9d0,
gcpro = 0x0, jmp = {{__jmpbuf = {7811300748338917787, 272529768,
7811334515022091259, 0 <repeats 13 times>, 70367536151680,
70367536152576, 70367536150448, 276398514, 70368744170912,
2449960692665548799, 0 <repeats 42 times>}, __mask_was_saved = 0,
__saved_mask = {__val = {4294967295, 0 <repeats 13 times>, 272500336,
0}}}}, backlist = 0x0, handlerlist = 0x0, lisp_eval_depth = 0, pdlcount
= 2, poll_suppress_count = 1, interrupt_input_blocked = 0, byte_stack = 0x0}
h = {handler = 276337522, var = 276285906, chosen_clause = 0,
tag = 0x3fffffffe610, next = 0x0}
#14 0x00000000101a4314 in top_level_1 (ignore=276285906) at keyboard.c:1185
#15 0x000000001027bf5c in internal_catch (tag=276333362, func=0x101a42b0
<top_level_1>, arg=276285906) at eval.c:1060
c =
---Type <return> to continue, or q <return> to quit---
{tag = 276333362, val = 276285906, next = 0x0, gcpro = 0x0,
jmp = {{__jmpbuf = {7811300748338920875, 272529768, 7811334515022080783,
0 <repeats 13 times>, 70367536151680, 70367536152576, 70367536150448,
276398514, 70368744171920, 2449960692665548799, 0 <repeats 42 times>},
__mask_was_saved = 0, __saved_mask = {__val = {276309864,
72057594037927940, 276285906, 276285906, 276506162, 70368744172656,
272151100, 70368744172656, 276506160, 276604080, 276506162, 276312672,
275426328, 276398514, 70368744172656, 70368744172816}}}}, backlist =
0x0, handlerlist = 0x0, lisp_eval_depth = 0, pdlcount = 2,
poll_suppress_count = 1, interrupt_input_blocked = 0, byte_stack = 0x0}
#16 0x00000000101a4104 in command_loop () at keyboard.c:1146
#17 0x00000000101a3260 in recursive_edit_1 () at keyboard.c:779
count = 1
val = 270153060
#18 0x00000000101a3520 in Frecursive_edit () at keyboard.c:843
count = 0
buffer = 276285906
#19 0x000000001019ff18 in main (argc=5, argv=0x3ffffffff2d8) at emacs.c:1528
dummy = 70368744173184
stack_bottom_variable = 0 '\000'
do_initial_setlocale = true
dumping = true
skip_args = 3
rlim = {rlim_cur = 8720000, rlim_max = 18446744073709551615}
no_loadup = false
junk = 0x0
dname_arg = 0x0
ch_to_dir = 0x0
(gdb)
--
Petr Hracek
Software Engineer
Developer Experience
Red Hat, Inc
Mob: +420777056169
email: phracek <at> redhat.com
GNU bug tracking system
Copyright (C) 1999 Darren O. Benham,
1997,2003 nCipher Corporation Ltd,
1994-97 Ian Jackson.