Your message dated Sun, 26 Dec 2021 23:03:37 +0000
with message-id <e1n1cyd-000feb...@fasolo.debian.org>
and subject line Bug#995393: fixed in fakeroot 1.26-1.1
has caused the Debian Bug report #995393,
regarding fakeroot: FTBFS on ppc64el
to be marked as done.
This means that you claim that the problem has been dealt with.
If this is not the case it is now your responsibility to reopen the
Bug report if necessary, and/or fix the problem forthwith.
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--
995393: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=995393
Debian Bug Tracking System
Contact ow...@bugs.debian.org with problems
--- Begin Message ---
Package: src:fakeroot
Version: 1.26-1
Control: tags -1 ftbfs
--
Dear maintainer,
fakeroot fails to build on ppc64el since 1.26-1
https://buildd.debian.org/status/fetch.php?pkg=fakeroot&arch=ppc64el&ver=1.26-1&stamp=1630982822&raw=0
Backtrace from the core file :
---
Core was generated by `chown -R daemon:sys 2 '.
Program terminated with signal SIGSEGV, Segmentation fault.
#0 0x000005e13c212284 in 0000001b.plt_call.fdopendir@@GLIBC_2.17 ()
(gdb) bt
#0 0x000005e13c212284 in 0000001b.plt_call.fdopendir@@GLIBC_2.17 ()
#1 0x000005e13c220fd4 in opendirat (dir_fd=-100, dir=0x5e13fb347b0 "2",
extra_flags=32768, pnew_fd=0x7fffc6e5cab0) at lib/opendirat.c:44
#2 0x000005e13c21cb74 in fts_build (sp=0x5e13fb33ce0, type=3) at lib/fts.c:1340
#3 0x000005e13c21be60 in rpl_fts_read (sp=0x5e13fb33ce0) at lib/fts.c:940
#4 0x000005e13c214ca0 in chown_files (files=0x7fffc6e5d210, bit_flags=1040,
uid=1, gid=3, required_uid=4294967295, required_gid=4294967295,
chopt=0x7fffc6e5cd00) at src/chown-core.c:531
#5 0x000005e13c21349c in main (argc=4, argv=0x7fffc6e5d1f8) at src/chown.c:324
---
Bisecting the code I ended up with this commit :
https://salsa.debian.org/clint/fakeroot/-/commit/f5e0a89ab6f0024f3d3bec5fd9cf631676b44f6c
from which things start to fail.
Especially the openat() function.
What I noticed also is that lowering optimization to O0 makes the test
work.
Simple way to reproduce is on directories :
---
mkdir bla
LD_PRELOAD=./obj-sysv/.libs/libfakeroot-0.so /bin/rm -fr bla
---
Each time fdopendir seg fault with the fd coming from openat right
before.
Not sure what optimization breaks, I just tried changing openat() to
modify some aggressive optimization on that function and it helped.
---
--- a/libfakeroot.c
+++ b/libfakeroot.c
@@ -2596,7 +2596,11 @@
#endif
#ifdef HAVE_OPENAT
+#if defined(__powerpc__) && defined(__powerpc64__) && __BYTE_ORDER__ ==
__ORDER_LITTLE_ENDIAN__
+static int openat(int dir_fd, const char *pathname, int flags, ...)
+#else
int openat(int dir_fd, const char *pathname, int flags, ...)
+#endif
{
mode_t mode;
---
Hoping you'll get more ideas on this
Regards,
F.
signature.asc
Description: PGP signature
--- End Message ---
--- Begin Message ---
Source: fakeroot
Source-Version: 1.26-1.1
Done: Christoph Biedl <debian.a...@manchmal.in-ulm.de>
We believe that the bug you reported is fixed in the latest version of
fakeroot, which is due to be installed in the Debian FTP archive.
A summary of the changes between this version and the previous one is
attached.
Thank you for reporting the bug, which will now be closed. If you
have further comments please address them to 995...@bugs.debian.org,
and the maintainer will reopen the bug report if appropriate.
Debian distribution maintenance software
pp.
Christoph Biedl <debian.a...@manchmal.in-ulm.de> (supplier of updated fakeroot
package)
(This message was generated automatically at their request; if you
believe that there is a problem with it please contact the archive
administrators by mailing ftpmas...@ftp-master.debian.org)
-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA512
Format: 1.8
Date: Thu, 23 Dec 2021 08:19:30 +0100
Source: fakeroot
Architecture: source
Version: 1.26-1.1
Distribution: unstable
Urgency: high
Maintainer: Clint Adams <cl...@debian.org>
Changed-By: Christoph Biedl <debian.a...@manchmal.in-ulm.de>
Closes: 995393 1001961
Changes:
fakeroot (1.26-1.1) unstable; urgency=high
.
* Non-maintainer upload
* Also wrap the "stat" library call. Closes: #1001961
* Work around segfault on ppc64el. Closes: #995393
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