Bug#962870: tracker-miner-fs: Repeated SIGABRT crashes due to file_tree_lookup assertion failed

[Peter van Dijk]

After upgrading from Debian 10 to Debian 11, I found Evolution crashing whenever I tried to delete a few messages. Looking at coredumpctl, I noticed tracker-miner-fs crashing every few minutes, as you mention. I let myself be distracted by that for a bit, so I dug in with gdb, and found:

#4  0x00007f3955ceca82 in file_tree_lookup (tree=0x7f394400d320, file=file at entry=0x5644bfbfe2c0, 
    parent_node=parent_node at entry=0x7fff51069238, uri_remainder=uri_remainder at entry=0x7fff51069240)
    at ../src/libtracker-miner/tracker-file-system.c:259
259	../src/libtracker-miner/tracker-file-system.c: No such file or directory.
(gdb) print ptr
$15 = (gchar *) 0x5644bfb3c74f "-expenses"


So I looked around my homedir for that string, and I found ~/Documents/ox-expenses/

Thinking it might be treating the ox- prefix as special (wouldn't know why), I renamed the dir to oxexpenses. Then tracker-store crashed!

Jan 04 15:36:12 plato tracker-store[873997]: SQLite error: database disk image is malformed (errno: Success)
Jan 04 15:36:12 plato tracker-store[873997]: SQLite experienced an error with file:'/home/peter/.cache/tracker/meta.db'. It is either NOT a SQLite database or it is corrupt or there was an IO error accessing the data. This file has now been removed and will be recreated on the next start. Shutting down now.
Jan 04 15:36:13 plato systemd-coredump[874163]: Process 873997 (tracker-store) of user 1000 dumped core.
                                                
                                                Stack trace of thread 874001:
                                                #0  0x00007f2214af9ca7 g_log_structured_array (libglib-2.0.so.0 + 0x58ca7)
                                                #1  0x00007f2214afa0b5 g_log_default_handler (libglib-2.0.so.0 + 0x590b5)
                                                #2  0x00007f2214afa309 g_logv (libglib-2.0.so.0 + 0x59309)
                                                #3  0x00007f2214afa59f g_log (libglib-2.0.so.0 + 0x5959f)
                                                #4  0x00007f2214c08e83 n/a (libtracker-data.so + 0x38e83)
                                                #5  0x00007f2214bfe03c n/a (libtracker-data.so + 0x2e03c)
                                                #6  0x00007f2214c016dc n/a (libtracker-data.so + 0x316dc)

After that (30 minutes ago now), nothing has crashed - not tracker-miner-fs, not tracker-store, and, to my surprise, not Evolution either.

I don't have an explanation for what happened here, but perhaps you can try removing your meta.db (plus meta.db-* in the same dir) to see if it helps?

-- 
  Peter van Dijk
  peter at 7bits.nl