debugging-results.txt

bug.txt (text/plain), 7.88 KB, created by Georgi Georgiev on 2007-02-25 15:38:21 UTC

emerge --sync gives me this message every time:
...
>>> Updating Portage cache:   100%
/etc/portage/postsync.d/q-reinitialize: line 1: 810714 Segmentation fault      /usr/bin/q -r
 * spawn failed of /etc/portage/bin/post_sync

However, if I run /etc/portage/bin/post_sync from the command line there is no problem.

Now, I tried the following
1. ebuild portage-utils-0.1.24.ebuild compile
2. make -C /var/tmp/portage...0.1.24/ debug
3. vim /etc/portage/postsync.d/q-* to run "q" from the just-compiled directory

What I got is:
profile /usr/portage/profiles/default-linux/amd64/2006.1/desktop/make.defaults
profile /usr/portage/profiles/default-linux/amd64/2006.1/desktop/../make.defaults
profile /usr/portage/profiles/default-linux/amd64/2006.1/desktop/../../make.defaults
profile /usr/portage/profiles/default-linux/amd64/2006.1/desktop/../../../make.defaults
profile /usr/portage/profiles/default-linux/amd64/2006.1/desktop/../../../../base/make.defaults
profile /etc/make.globals
profile /etc/make.conf
ACCEPT_LICENSE = *
INSTALL_MASK = /usr/share/locale/aa /usr/share/locale/af ... (skip boring stuff)
ARCH = amd64
CONFIG_PROTECT = /etc /usr/kde/3.5/env /usr/kde/3.5/share/config /usr/kde/3.5/shutdown /usr/share/X11/xkb /usr/share/config /var/qmail/alias /var/qmail/control
NOCOLOR = 0
FEATURES = noman noinfo nodoc sandbox sfperms autoconfig strict sfperms sandbox distlocks metadata-transfer -ccache distlocks userpriv noinfo usersandbox collision-protect parallel-fetch -splitdebug buildpkg autoconfig buildpkg collision-protect distlocks noinfo parallel-fetch sfperms strict
PORTDIR = /usr/portage
PORTAGE_BINHOST = 
PORTAGE_TMPDIR = /var/tmp
PKGDIR = /usr/portage-lion/packages
ROOT = /
/etc/portage/postsync.d/q-reinitialize: line 2: 811379 Segmentation fault      (core dumped) /var/tmp/portage/app-portage/portage-utils-0.1.24/work/portage-utils-0.1.24/q -r
 * spawn failed of /etc/portage/bin/post_sync

I also have a core file now, which when loaded in gdb says:

Program terminated with signal 11, Segmentation fault.
#0  0x00002b1cbd30bcf0 in strcmp () from /lib/libc.so.6
(gdb) bt
#0  0x00002b1cbd30bcf0 in strcmp () from /lib/libc.so.6
#1  0x0000000000403333 in lookup_applet (applet=0x7fffed930488 "q") at q.c:36
#2  0x00000000004081d0 in q_main (argc=2, argv=0x7fffed92f7f8) at q.c:79
#3  0x00002b1cbd2b3374 in __libc_start_main () from /lib/libc.so.6
#4  0x0000000000402309 in _start ()

I am not sure what to make of it...

I changed q-reinitialize to run "gdb /var/tmp/..../q"
Then, from gdb (after --sync) I did:
(gdb) break lookup_applet
Breakpoint 1 at 0x40850f: file q.c, line 32.
(gdb) run -r
... skip boring stuff...
Breakpoint 1, lookup_applet (applet=0x7fff072c8485 "q") at q.c:32
32              if (strlen(applet) < 1)
(gdb) p applets
$4 = {{name = 0x2f207a65672f656c <Address 0x2f207a65672f656c out of bounds>, func = 0x726168732f727375, opts = 0x656c61636f6c2f65 <Address 0x656c61636f6c2f65 out of bounds>, 
    desc = 0x7273752f206c672f <Address 0x7273752f206c672f out of bounds>}, {name = 0x6c2f65726168732f <Address 0x6c2f65726168732f out of bounds>, func = 0x72672f656c61636f, 
    opts = 0x68732f7273752f20 <Address 0x68732f7273752f20 out of bounds>, desc = 0x61636f6c2f657261 <Address 0x61636f6c2f657261 out of bounds>}, {
    name = 0x752f2075672f656c <Address 0x752f2075672f656c out of bounds>, func = 0x65726168732f7273, opts = 0x2f656c61636f6c2f <Address 0x2f656c61636f6c2f out of bounds>, 
    desc = 0x2f7273752f207667 <Address 0x2f7273752f207667 out of bounds>}, {name = 0x6f6c2f6572616873 <Address 0x6f6c2f6572616873 out of bounds>, func = 0x7761682f656c6163, 
    opts = 0x68732f7273752f20 <Address 0x68732f7273752f20 out of bounds>, desc = 0x61636f6c2f657261 <Address 0x61636f6c2f657261 out of bounds>}, {
    name = 0x752f2065682f656c <Address 0x752f2065682f656c out of bounds>, func = 0x65726168732f7273, opts = 0x2f656c61636f6c2f <Address 0x2f656c61636f6c2f out of bounds>, 
    desc = 0x2f7273752f206968 <Address 0x2f7273752f206968 out of bounds>}, {name = 0x6f6c2f6572616873 <Address 0x6f6c2f6572616873 out of bounds>, func = 0x2072682f656c6163, 
    opts = 0x6168732f7273752f <Address 0x6168732f7273752f out of bounds>, desc = 0x6c61636f6c2f6572 <Address 0x6c61636f6c2f6572 out of bounds>}, {
    name = 0x73752f2075682f65 <Address 0x73752f2075682f65 out of bounds>, func = 0x2f65726168732f72, opts = 0x682f656c61636f6c <Address 0x682f656c61636f6c out of bounds>, 
    desc = 0x732f7273752f2079 <Address 0x732f7273752f2079 out of bounds>}, {name = 0x636f6c2f65726168 <Address 0x636f6c2f65726168 out of bounds>, func = 0x2f2064692f656c61, 
    opts = 0x726168732f727375 <Address 0x726168732f727375 out of bounds>, desc = 0x656c61636f6c2f65 <Address 0x656c61636f6c2f65 out of bounds>}, {
    name = 0x7273752f2073692f <Address 0x7273752f2073692f out of bounds>, func = 0x6c2f65726168732f, opts = 0x74692f656c61636f <Address 0x74692f656c61636f out of bounds>, 
    desc = 0x68732f7273752f20 <Address 0x68732f7273752f20 out of bounds>}, {name = 0x61636f6c2f657261 <Address 0x61636f6c2f657261 out of bounds>, func = 0x752f2075692f656c, 
    opts = 0x65726168732f7273 <Address 0x65726168732f7273 out of bounds>, desc = 0x2f656c61636f6c2f <Address 0x2f656c61636f6c2f out of bounds>}, {
    name = 0x2f7273752f20616b <Address 0x2f7273752f20616b out of bounds>, func = 0x6f6c2f6572616873, opts = 0x206b6b2f656c6163 <Address 0x206b6b2f656c6163 out of bounds>, 
    desc = 0x6168732f7273752f <Address 0x6168732f7273752f out of bounds>}, {name = 0x6c61636f6c2f6572 <Address 0x6c61636f6c2f6572 out of bounds>, func = 0x73752f206c6b2f65, 
    opts = 0x2f65726168732f72 <Address 0x2f65726168732f72 out of bounds>, desc = 0x6b2f656c61636f6c <Address 0x6b2f656c61636f6c out of bounds>}, {
    name = 0x732f7273752f206d <Address 0x732f7273752f206d out of bounds>, func = 0x636f6c2f65726168, opts = 0x2f206e6b2f656c61 <Address 0x2f206e6b2f656c61 out of bounds>, 
    desc = 0x726168732f727375 <Address 0x726168732f727375 out of bounds>}, {name = 0x410065 "\227W��\204�\017\204r\002", func = 0x4106b9 <qsearch_main>, 
    opts = 0x41ef53 "<regex>", desc = 0x41ef5b "search pkgname/desc"}, {name = 0x41ef6f "qsize", func = 0x410f5f <qsize_main>, opts = 0x41eded "<pkgname>", 
    desc = 0x41ef75 "calculate size usage"}, {name = 0x41ef8a "qtbz2", func = 0x411bf7 <qtbz2_main>, opts = 0x41ee8e "<misc args>", 
    desc = 0x41ef90 "manipulate tbz2 packages"}, {name = 0x41efa9 "quse", func = 0x412d6a <quse_main>, opts = 0x41efae "<useflag>", 
    desc = 0x41efb8 "find pkgs using useflags"}, {name = 0x41efd1 "qxpak", func = 0x414b5a <qxpak_main>, opts = 0x41ee8e "<misc args>", 
    desc = 0x41efd7 "manipulate xpak archives"}, {name = 0x41eff0 "belongs", func = 0x40d001 <qfile_main>, opts = 0x0, desc = 0x0}, {name = 0x41eff8 "check", 
    func = 0x408d2e <qcheck_main>, opts = 0x0, desc = 0x0}, {name = 0x41effe "depends", func = 0x40b267 <qdepends_main>, opts = 0x0, desc = 0x0}, {name = 0x41f006 "files", 
    func = 0x40df43 <qlist_main>, opts = 0x0, desc = 0x0}, {name = 0x41f00c "hasuse", func = 0x412d6a <quse_main>, opts = 0x0, desc = 0x0}, {name = 0x41f013 "size", 
    func = 0x410f5f <qsize_main>, opts = 0x0, desc = 0x0}, {name = 0x41f018 "uickpkg", func = 0x41542b <qpkg_main>, opts = 0x0, desc = 0x0}, {name = 0x0, func = 0, 
    opts = 0x0, desc = 0x0}}

Does the above make any sense to you? The same action from the command line produce the following proper output:

(gdb) p applets
$1 = {{name = 0x41ed75 "q", func = 0x408839 <q_main>, opts = 0x41ed77 "<applet> <args>", desc = 0x41ed87 "virtual applet"}, {name = 0x41ed96 "qatom",
    func = 0x41634d <qatom_main>, opts = 0x41ed9c "<pkg>", desc = 0x41eda2 "split atom strings"}, {name = 0x41edb5 "qcache", func = 0x41e371 <qcache_main>,
    opts = 0x41edbc "<action> <args>", desc = 0x41edcc "search the metadata cache"}, {name = 0x41ede6 "qcheck", func = 0x408d2e <qcheck_main>, opts = 0x41eded "<pkgname>", (skip the rest)

I did what I could. Best of luck to you guys.

I'll attach emerge --info after posting (this post got bloated enough as it is).