Package: perl-base
Version: 5.24.1-3+deb9u1
Severity: normal
Dear Maintainer,
when I run the test suite (Git (the VCS, master branch), the perl binary
sometimes crashes in one of its tests. I used the commands below to reproduce
the problem (just let it run, it'll crash eventually):
$ git clone git://git.kernel.org/pub/scm/git/git.git && cd git
$ make USE_LIBPCRE2=YesPlease (requires curl-dev and openssl-dev, I think...)
$ cd t (the test suite)
$ ulimit -c unlimited
$ rm -rf 'trash directory.t9128-git-svn-cmd-branch'
$ while ./t9128-git-svn-cmd-branch.sh -d -i
do
echo; echo
rm -rf 'trash directory.t9128-git-svn-cmd-branch'
done
...
not ok 3 - git svn branch tests
#
# git svn branch a &&
# base=$(git rev-parse HEAD:) &&
# test $base = $(git rev-parse remotes/origin/a:) &&
# git svn branch -m "created branch b blah" b &&
# test $base = $(git rev-parse remotes/origin/b:) &&
# test_must_fail git branch -m "no branchname" &&
# git svn branch -n c &&
# test_must_fail git rev-parse remotes/origin/c &&
# test_must_fail git svn branch a &&
# git svn branch -t tag1 &&
# test $base = $(git rev-parse remotes/origin/tags/tag1:) &&
# git svn branch --tag tag2 &&
# test $base = $(git rev-parse remotes/origin/tags/tag2:) &&
# git svn tag tag3 &&
# test $base = $(git rev-parse remotes/origin/tags/tag3:) &&
# git svn tag -m "created tag4 foo" tag4 &&
# test $base = $(git rev-parse remotes/origin/tags/tag4:) &&
# test_must_fail git svn tag -m "no tagname" &&
# git svn tag -n tag5 &&
# test_must_fail git rev-parse remotes/origin/tags/tag5 &&
# test_must_fail git svn tag tag1
#
$ gdb /usr/bin/perl './trash directory.t9128-git-svn-cmd-branch/core'
...
(gdb) bt full
#0 0x000000b2ce983b10 in Perl_sv_clear (my_perl=my_perl@entry=0xb2cefdf010,
orig_sv=orig_sv@entry=0xb2d00807e8) at sv.c:6582
stash = <optimized out>
type = 9
sv_type_details = <optimized out>
iter_sv = 0x0
next_sv = 0x0
sv = 0xb2d00807e8
hash_index = 0
#1 0x000000b2ce983da0 in Perl_sv_free2 (my_perl=my_perl@entry=0xb2cefdf010,
sv=sv@entry=0xb2d00807e8, rc=<optimized out>) at sv.c:6954
No locals.
#2 0x000000b2ce8fd8a5 in S_SvREFCNT_dec (sv=0xb2d00807e8,
my_perl=0xb2cefdf010) at inline.h:166
rc = <optimized out>
#3 Perl_gp_free (my_perl=my_perl@entry=0xb2cefdf010, gv=gv@entry=0xb2d0080938)
at gv.c:2568
file_hek = <optimized out>
hv = <optimized out>
io = 0xb2d00807e8
form = 0x0
sv = <optimized out>
cv = 0x0
av = 0x0
gp = <optimized out>
attempts = 100
#4 0x000000b2ce983b74 in Perl_sv_clear (my_perl=my_perl@entry=0xb2cefdf010,
orig_sv=orig_sv@entry=0xb2d00e92c0) at sv.c:6585
stash = <optimized out>
type = 9
sv_type_details = <optimized out>
iter_sv = 0x0
next_sv = 0x0
sv = 0xb2d0080938
hash_index = 0
#5 0x000000b2ce983da0 in Perl_sv_free2 (my_perl=my_perl@entry=0xb2cefdf010,
sv=0xb2d00e92c0, rc=<optimized out>) at sv.c:6954
No locals.
#6 0x000000b2ce972ad2 in S_SvREFCNT_dec (sv=<optimized out>,
my_perl=0xb2cefdf010) at inline.h:166
rc = <optimized out>
#7 S_hv_delete_common (hash=<optimized out>, d_flags=68, k_flags=<optimized
out>, klen=<optimized out>, key=<optimized out>, keysv=<optimized out>,
hv=0xb2cefdf010, my_perl=0xb2d007db68) at hv.c:1279
xhv = <optimized out>
first_entry = <optimized out>
stash = <optimized out>
entry = 0xb2d00e4828
keysv_hek = <optimized out>
mro_changes = <optimized out>
sv = <optimized out>
oentry = 0xb2d007db68
is_utf8 = false
masked_flags = <optimized out>
gv = <optimized out>
#8 Perl_hv_common (my_perl=my_perl@entry=0xb2cefdf010,
hv=hv@entry=0xb2cfff4e10, keysv=<optimized out>, key=<optimized out>,
key@entry=0x0, klen=<optimized out>, klen@entry=0, flags=<optimized out>,
flags@entry=0, action=68, val=0x0, hash=<optimized out>) at hv.c:397
xhv = <optimized out>
entry = <optimized out>
oentry = <optimized out>
sv = <optimized out>
is_utf8 = false
masked_flags = <optimized out>
return_svp = 0
keysv_hek = 0x0
#9 0x000000b2ce9aca1f in Perl_pp_delete (my_perl=0xb2cefdf010) at pp.c:5061
_p = <optimized out>
sv = <optimized out>
mark = 0xb2cf00fed8
origmark = 0
hv = 0xb2cfff4e10
hvtype = <optimized out>
sp = 0xb2cf00fee0
gimme = 1 '\001'
discard = 4
#10 0x000000b2ce976916 in Perl_runops_standard (my_perl=0xb2cefdf010) at
run.c:41
op = <optimized out>
#11 0x000000b2ce8f4aee in Perl_call_sv (my_perl=my_perl@entry=0xb2cefdf010,
sv=0xb2cf546fd0, flags=flags@entry=45) at perl.c:2812
myop = {
op_next = 0x0,
op_sibling = 0x0,
op_ppaddr = 0x0,
op_targ = 0,
op_type = 0,
op_opt = 0,
op_slabbed = 0,
op_savefree = 0,
op_static = 0,
op_folded = 0,
op_moresib = 0,
op_spare = 0,
op_flags = 65 'A',
op_private = 0 '\000',
op_first = 0x0,
op_other = 0x7fffe7a15bf0
}
method_op = {
op_next = 0x7fffe7a15c78,
op_sibling = 0x0,
op_ppaddr = 0x0,
op_targ = 6475432755568752640,
op_type = 0,
op_opt = 0,
op_slabbed = 0,
op_savefree = 0,
op_static = 0,
op_folded = 0,
op_moresib = 0,
op_spare = 0,
op_flags = 0 '\000',
op_private = 0 '\000',
op_u = {
op_first = 0xb2cf5470a8,
op_meth_sv = 0xb2cf5470a8
},
op_rclass_targ = 767976927248
}
oldmark = 0
retval = 0
oldcatch = <optimized out>
ret = <optimized out>
oldop = 0xb2cff23668
cur_env = {
je_prev = 0xb2cefdf390,
je_buf = {{
__jmpbuf = {767976927248, -559631050163250190, 767982596048, 1,
767976927248, 767976927248, -559631050173735950, 477831098733272050},
__mask_was_saved = 0,
__saved_mask = {
__val = {767992182000, 767976927248, 8, 767992182000, 0,
140692364836233, 767992736640, 767969944821, 767976927248, 767976927552,
767976927600, 6475432755568752640, 767976927576, 767979441864, 767993794064,
767994788600}
}
}},
je_ret = 0,
je_mustcatch = false,
je_old_delaymagic = 0
}
#12 0x000000b2ce983055 in S_curse (my_perl=my_perl@entry=0xb2cefdf010,
sv=sv@entry=0xb2cfff4e10, check_refcnt=check_refcnt@entry=true) at sv.c:6853
destructor = <optimized out>
meta = <optimized out>
sp = <optimized out>
stash = <optimized out>
#13 0x000000b2ce983a60 in Perl_sv_clear (my_perl=my_perl@entry=0xb2cefdf010,
orig_sv=orig_sv@entry=0xb2cfff4e10) at sv.c:6457
stash = <optimized out>
type = 12
sv_type_details = <optimized out>
iter_sv = 0x0
next_sv = 0x0
sv = 0xb2cfff4e10
hash_index = 0
#14 0x000000b2ce983da0 in Perl_sv_free2 (my_perl=0xb2cefdf010, sv=0xb2cfff4e10,
rc=<optimized out>) at sv.c:6954
No locals.
#15 0x000000b2ce981eab in S_visit (my_perl=my_perl@entry=0xb2cefdf010,
f=f@entry=0xb2ce983fc0 <do_clean_objs>, flags=flags@entry=2048,
mask=mask@entry=2048) at sv.c:476
svend = 0xb2cf0477d0
sv = 0xb2cf047440
sva = 0xb2cf0467e0
visited = 1512
#16 0x000000b2ce984156 in Perl_sv_clean_objs
(my_perl=my_perl@entry=0xb2cefdf010) at sv.c:627
olddef = <optimized out>
olderr = <optimized out>
#17 0x000000b2ce8f76e8 in perl_destruct (my_perl=0xb2cefdf010) at perl.c:816
destruct_level = 0 '\000'
hv = <optimized out>
i = <optimized out>
#18 0x000000b2ce8d5905 in main (argc=<optimized out>, argv=<optimized out>,
env=<optimized out>) at perlmain.c:127
exitstatus = <optimized out>
i = <optimized out>
(*gdb) print *((GV *)sv)
$1 = {
sv_any = 0xb2d00f53d0,
sv_refcnt = 0,
sv_flags = 32777,
sv_u = {
svu_pv = 0x0,
svu_iv = 0,
svu_uv = 0,
svu_nv = 0,
svu_rv = 0x0,
svu_rx = 0x0,
svu_array = 0x0,
svu_hash = 0x0,
svu_gp = 0x0,
svu_fp = 0x0
}
}
(gdb) l
6577 SvREFCNT_dec(LvTARG(sv));
6578 if (isREGEXP(sv)) goto freeregexp;
6579 /* FALLTHROUGH */
6580 case SVt_PVGV:
6581 if (isGV_with_GP(sv)) {
6582 if(GvCVu((const GV *)sv) && (stash =
GvSTASH(MUTABLE_GV(sv))) <---
6583 && HvENAME_get(stash))
6584 mro_method_changed_in(stash);
6585 gp_free(MUTABLE_GV(sv));
6586 if (GvNAME_HEK(sv))
(gdb) q
The macro GvCVu tries to resolve sv.sv_u.svu_gp to access gp_cvgen, which
fails on account svu_gp being NULL.
I had to recompile the perl package locally to get the details backtrace: I
failed to find the debug symbols of the perl package here:
deb http://debug.mirrors.debian.org/debian-debug/ stretch-debug main non-free
contrib
The SIGSEGV happens with the binaries installed from the ftp.de.debian.olg all
the same, the backtrace looks similar:
Program terminated with signal SIGSEGV, Segmentation fault.
#0 0x000000868ee1f335 in Perl_PerlIO_error ()
(gdb) bt
#0 0x000000868ee1f335 in Perl_PerlIO_error ()
#1 0x000000868edf8500 in Perl_io_close ()
#2 0x000000868edf87ad in Perl_do_close ()
#3 0x000000868ede51c7 in Perl_pp_close ()
#4 0x000000868ed966c6 in Perl_runops_standard ()
#5 0x000000868ed14aee in Perl_call_sv ()
#6 0x000000868eda2e05 in ?? ()
#7 0x000000868eda3810 in Perl_sv_clear ()
#8 0x000000868eda3b50 in Perl_sv_free2 ()
#9 0x000000868eda1c5b in ?? ()
#10 0x000000868eda3f06 in Perl_sv_clean_objs ()
#11 0x000000868ed176e8 in perl_destruct ()
#12 0x000000868ecf5905 in main ()
Additional information (libsvn-perl):
Origin: Debian:9.1/stable [amd64]
Origin URI:
http://ftp.de.debian.org/debian/pool/main/s/subversion/libsvn-perl_1.9.5-1_amd64.deb
--\ Versions of libsvn-perl (3)
iiA 1.9.5-1
Additional information (libsvn1):
Origin: Debian:9.1/stable [amd64]
Origin URI:
http://ftp.de.debian.org/debian/pool/main/s/subversion/libsvn1_1.9.5-1_amd64.deb
--\ Versions of libsvn1 (3)
i A 1.9.5-1
-- System Information:
Debian Release: 9.1
APT prefers stable-debug
APT policy: (500, 'stable-debug'), (500, 'proposed-updates'), (500, 'stable')
Architecture: amd64 (x86_64)
Foreign Architectures: i386
Kernel: Linux 4.12.4 (SMP w/8 CPU cores; PREEMPT)
Locale: LANG=en_US.utf8, LC_CTYPE=en_US.utf8 (charmap=UTF-8), LANGUAGE=en_US:en
(charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Init: sysvinit (via /sbin/init)
Versions of packages perl-base depends on:
ii dpkg 1.18.24
ii libc6 2.24-11+deb9u1
perl-base recommends no packages.
Versions of packages perl-base suggests:
ii perl 5.24.1-3+deb9u1
-- no debconf information
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