[asterisk-bugs] [JIRA] (ASTERISK-28478) Crash performing "core reload" with modified res_config_sqlite3.conf

[Dennis (JIRA)]

    [ https://issues.asterisk.org/jira/browse/ASTERISK-28478?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=247618#comment-247618 ] 

Dennis commented on ASTERISK-28478:
-----------------------------------

The "stuffs" discrepancy is because at the time I was in the middle of running tests for an unreleased feature for one of our products. Asterisk config was not entirely "clean" nor identical, but sufficiently so to reproduce the problem. (Problem being that "core reload" after making changes to res_config_sqlite3.conf would crash Asterisk)

I'll provide minimal Asterisk config files with pristine 13.27.1 build when able (our standard build contains a few unrelated patches for DAHDi and OpenR2). The server I was using is currently under test (for said feature) and I currently have no spare servers to molest. Please bear with me.

> Crash performing "core reload" with modified res_config_sqlite3.conf
> --------------------------------------------------------------------
>
>                 Key: ASTERISK-28478
>                 URL: https://issues.asterisk.org/jira/browse/ASTERISK-28478
>             Project: Asterisk
>          Issue Type: Bug
>      Security Level: None
>          Components: Resources/res_config_sqlite3
>    Affects Versions: 13.25.0
>         Environment: CentOS7
>            Reporter: Dennis
>            Assignee: Dennis
>            Severity: Minor
>
> {code:title=original res_config_sqlite3.conf}
> [asterisk]
> dbfile => /var/lib/asterisk/somefile.sqlite3
> {code}
> {code:title=changed res_config_sqlite3.conf}
> [asterisk]
> dbfile => /var/lib/asterisk/anotherfile.sqlite3
> {code}
> {code:title=journalctl -u asterisk (starting from "core reload")}
> Jul 14 07:46:06 erol asterisk[25998]: [2019-07-14 07:46:06] NOTICE[26113]: cdr.c:4459 cdr_toggle_runtime_options: CDR simple logging enabled.
> Jul 14 07:46:06 erol asterisk[25998]: [2019-07-14 07:46:06] WARNING[26113]: res_digium_phone.c:606 reload: No Valid DPMA License found.
> Jul 14 07:46:06 erol systemd[1]: asterisk.service: main process exited, code=killed, status=11/SEGV
> {code}
> {code:title=backtrace}
> (gdb) bt
> #0  0x00007fe6d082feb1 in pthread_join () from /lib64/libpthread.so.0
> #1  0x00007fe656facb19 in db_destructor (obj=0x7fe6c400e338) at res_config_sqlite3.c:237
> #2  0x000000000045c922 in internal_ao2_ref (func=0x61e1d3 <__FUNCTION__.9420> "__ao2_ref", line=523, file=0x61df78 "astobj2.c", delta=-1, user_data=0x7fe6c400e338)
>     at astobj2.c:456
> #3  __ao2_ref (user_data=user_data at entry=0x7fe6c400e338, delta=delta at entry=-1) at astobj2.c:523
> #4  0x00007fe656facde6 in unref_db (db=<synthetic pointer>) at res_config_sqlite3.c:252
> #5  update_realtime_sqlite3_db (cat=0x7fe6c4007990 "stuffs", config=0x7fe6c400d690, db=0x2ba59b8) at res_config_sqlite3.c:471
> #6  parse_config (reload=reload at entry=1) at res_config_sqlite3.c:1293
> #7  0x00007fe656fad0be in reload () at res_config_sqlite3.c:1312
> #8  0x000000000053a4ca in ast_module_reload (name=name at entry=0x0) at loader.c:1058
> #9  0x00000000004d07ca in handle_core_reload (e=<optimized out>, cmd=<optimized out>, a=<optimized out>) at cli.c:325
> #10 0x00000000004d77ff in ast_cli_command_full (uid=uid at entry=0, gid=gid at entry=0, fd=fd at entry=23, s=s at entry=0x7fe6cce94600 "core reload") at cli.c:2854
> #11 0x00000000004d792b in ast_cli_command_multiple_full (uid=0, gid=0, fd=23, size=12, s=0x7fe6cce948e0 "core reload") at cli.c:2880
> #12 0x0000000000457a48 in netconsole (vconsole=vconsole at entry=0x8e6ee0 <consoles>) at asterisk.c:1554
> #13 0x00000000005f978e in dummy_start (data=<optimized out>) at utils.c:1239
> #14 0x00007fe6d082edd5 in start_thread () from /lib64/libpthread.so.0
> #15 0x00007fe6cfb0bead in clone () from /lib64/libc.so.6
> {code}



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