tracker-miner-fs crashed with SIGSEGV in g_file_replace()

[Laurent Bonnaud]

I get this crash in tracker (or another crash, see bug #1327131) each time I log in.

The following environment variables may help to reproduce the crash:

  MALLOC_CHECK_=3
  MALLOC_PERTURB_=117

Another way to trigger this crash is those commands:

$ tracker-control -k
$ tracker-control -s

ProblemType: Crash
DistroRelease: Ubuntu 14.04
Package: tracker-miner-fs 1.0.2-1ubuntu1~trusty1 [origin: LP-PPA-gnome3-team-gnome3-staging]
ProcVersionSignature: Ubuntu 3.13.0-32.56-generic 3.13.11.4
Uname: Linux 3.13.0-32-generic x86_64
ApportVersion: 2.14.1-0ubuntu3.2
Architecture: amd64
Date: Wed Jul 16 14:31:26 2014
EcryptfsInUse: Yes
ExecutablePath: /usr/lib/tracker/tracker-miner-fs
ProcCmdline: /usr/lib/tracker/tracker-miner-fs
SegvAnalysis:
 Segfault happened at: 0x7f41d782d81c <g_file_get_uri+28>: cmp %rax,0x0(%rbp)
 PC (0x7f41d782d81c) ok
 source "%rax" ok
 destination "0x0(%rbp)" (0x00000001) not located in a known VMA region (needed writable region)!
SegvReason: writing NULL VMA
Signal: 11
SourcePackage: tracker
StacktraceTop:
 g_file_get_uri (file=0x31f7320) at /build/buildd/glib2.0-2.40.0/./gio/gfile.c:546
 sparql_files_compose_query (files=<optimized out>, n_files=103) at tracker-file-notifier.c:740
 sparql_files_query_start (n_files=<optimized out>, files=<optimized out>, notifier=0x24fc100) at tracker-file-notifier.c:759
 crawler_finished_cb (crawler=<optimized out>, was_interrupted=<optimized out>, user_data=0x24fc100) at tracker-file-notifier.c:843
 g_cclosure_marshal_VOID__BOOLEANv (closure=<optimized out>, return_value=<optimized out>, instance=<optimized out>, args=<optimized out>, marshal_data=<optimized out>, n_params=<optimized out>, param_types=0x25ca6d0) at /build/buildd/glib2.0-2.40.0/./gobject/gmarshal.c:188
Title: tracker-miner-fs crashed with SIGSEGV in g_file_get_uri()
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm autopilot cdrom dip fuse libvirtd lpadmin plugdev sambashare staff sudo

[Laurent Bonnaud (laurent-bonnaud)]

Unfortunately, running tracker-miner-fs with debug output allowed the indexing to finish:

$ /usr/lib/tracker/tracker-miner-fs -v 3 -s 0
[...]
Tracker-INFO: Notified files after 15,58 seconds
Tracker-INFO: Found 11119 directories, ignored 286 directories
Tracker-INFO: Found 56546 files, ignored 944 files
Tracker-INFO: Finished all tasks
Tracker-INFO: --------------------------------------------------
Tracker-INFO: Total directories : 11119 (286 ignored)
Tracker-INFO: Total files : 56546 (944 ignored)
Tracker-INFO: Total processed : 0 (0 notified, 0 with error)
Tracker-INFO: --------------------------------------------------

Tracker-INFO: Idle
Tracker-INFO: Finished mining in seconds:15,582092, total directories:11119, total files:56546
Tracker-Message: Running on AC power
(tracker-miner-fs:19574): Tracker-DEBUG: Setting new throttle to 0,000

[Ubuntu GNOME (ug-bot)]

StacktraceTop:
 g_file_replace (file=<optimized out>, etag=0x1 <Address 0x1 out of bounds>, make_backup=0, flags=(unknown: 39626448), cancellable=0x3481610, error=0x24d7090) at /build/buildd/glib2.0-2.41.2~git20140710.60fe7b46/./gio/gfile.c:1768
 sparql_files_query_start (n_files=<optimized out>, files=<optimized out>, notifier=0x24fc040) at tracker-file-notifier.c:759
 crawler_finished_cb (crawler=<optimized out>, was_interrupted=<optimized out>, user_data=0x24fc040) at tracker-file-notifier.c:843
 g_cclosure_marshal_VOID__UCHARv (closure=0x31f7320, return_value=0xffffffff, instance=0x31abfd0, args=0x31abfd0, marshal_data=0x3115590, n_params=154, param_types=0x3000000020) at /build/buildd/glib2.0-2.41.2~git20140710.60fe7b46/./gobject/gmarshal.c:310
 ?? ()